变压器安装使用说明书 正文英文)
变压器安装使用说明书

变压器安装使用说明书本说明书适用于我厂生产的额定容量为16000kVA及以下、电压等级35kV及以下的无载/有载调压环氧树脂浇注干式电力变压器的装卸、运输、仓储保管、安装、使用及维护。
1. 产品概述我厂生产的树脂浇注干式电力变压器是引进德国HUBERS公司的树脂浇注设备及乔格公司的硅钢片剪切设备生产而成,产品的技术性能指标完全符合GB6450及国际电工IEC726标准。
该产品具有如下几个特点:(1)具有良好的阻燃性,使用安全,可安装在负荷中心;(2)节能低耗;(3)体积小、重量轻,便于安装;(4)无污染,不需要特别的维护;(5)耐潮湿;(6)局部放电量小;(7)机械强度高、无开裂。
可广泛应用于输变电系统、宾馆酒店、高层建筑、商业中心、体育场馆、石化工厂、机场、车站、海上钻台等场所,特别是安装空间有限、须靠近负荷中心和具有特殊防火要求的场合,更能充分发挥其体积小、阻燃性好的优越性。
2. 使用条件2.1冷却方式:有空气自冷(AN)和强迫风冷(AF)两种。
对空气风冷(AN)和强迫风冷(AF)的变压器,均需保证变压器具有良好的通风能力。
当变压器安装在地下室或其它通风能力较差的环境时,须增设散热通风装置,通风量按每1kW损耗4m3/min风量选取。
2.2保护等级有IP00、IP20、IP23等型式。
2.3变压器安装地点的海拔不超过1000米,环境温度不高于40℃,若环境温度高于40℃或海拔超过1000米时,应按GB6450和有关规定作适当调整。
3. 产品装卸3.1装卸设备可采用起重机、汽车吊、叉车等起吊设备。
3.2装卸时应严格按照国家有关装卸规程。
3.3主体包装箱四角下方(滑木倒角处附近)喷有“由此吊起”标志符号,起吊时,应在包装箱的四下角垫木处挂钢丝绳,如下图一;如没有包装箱或变压器从包装箱中吊出时,应同时使用器身上的所有吊板起吊,起吊钢丝绳之间的夹角不得大于60。
,如下图二。
3.4产品装卸过程中,应小心轻放。
220KV级变压器安装使用说明书 中英文

Instruction Manual of Installation and Operationfor220kV Power Transformer目录Content1.适用范围 (3)Applicable Scope (3)2.运输及起吊 (3)Lifting and transportation of transformer main body (3)2.1运输要求 (3)Transportation Requirements (3)2.2主体运输 (4)Transportation of Transformer Main Body (4)2.3主体起吊 (4)Lifting of Main Body (4)2.4主体牵引 (5)Traction of Main Body (5)3.验收和保管贮存 (5)Acceptance and Storage (5)3.1到货验收 (5)Acceptance after Transformer Arrival (5)3.2附件开箱检查验收 (6)Inspection and Check of Accessories’ Boxes (6)3.3保管及贮存 (6)Storage (6)3.4 绝缘油的管理 (7)Insulation Oil (7)4.整体复装 (8)Re-assembly (10)4.1整体复装的注意事项 (10)Notes for Re-assembly (10)4.2组装前的准备工作 (11)Preparations before re-assembly (11)4.3整体复装 (11)Transformer re-assembly (11)5.真空注油 (13)Vacuum oil-filling (13)5.1真空注油 (13)Vacuum oil-filling (13)5.2补充注油及静放 (15)Supplementary oil-filling and placing still (15)6.交接试验和试运行 (16)Site Acceptance test and Commission (16)6.1试验前的检查 (16)Check before Site Acceptance Test (16)6.2交接试验 (17)Site Acceptance Test (17)6.3 试运行前的检查 (17)Inspection before Trial Operation (17)6.4投入试运行 (18)Put into trial operation (18)7.运行维护 (19)Maintenance in (service) operation (19)7.1正常运行 (19)Normal operation (19)7.2维护 (20)Maintenance (20)7.3变压器故障分析和排除 (21)Analysis and elimination of transformer faults (21)7.4螺栓紧固外加(最大)力矩 (23)1. 适用范围Applicable Scope本说明书适用于220kV油浸式电力变压器。
变压器用户指南说明书

CAUTION : do not connect under voltage. Refer to the drive User Guide before commissionning.ATTENTION : procéder au raccordement hors tension. Se reporter à la notice Installation et mise en service pour lamise en œuvre du variateur.VORSICHT : die Verbindung muss bei ausgeschalteter Spannung durchgeführt werden. Siehe Getriebe-Handbuch zurInstallation und Inbetriebsetzung des Getriebes.ATTENZIONE : il collegamento deve essere effettuato in assenza di tensione. Consultare il manuale di installazione e messa in servizio del variatore.ATENCIÓN : efectuar el conexionado sin tensión. Hacer referencia al manual de instalación y puesta en servicio del variador.LET OP : niet aansluiten onder spanning. Raadpleeg de installatie- en ingebruikstellingsnota voor het gebruik van de variator.PX-Brake Contactor Secure1/24123PX-Brake Contactor Secure4.2 - Secure input - Entrée sécuritaire - Sicherheit- Eingange - Ingresso di sicurezza - Entrada de seguridad - VeiligheidsingangApplying secure input SDI2 together with digital input DI2.Complies to EN 954-1 category 2 or 3 safety standards without any line contactor.Utilisation de l'entrée sécuritaire SDI2 en redondance avec l'entrée logique DI2. Conforme à EN 954-1 catégorie 2 ou 3 sans contacteur de ligne.Verwendung des Sicherheits-Einganges SDI2 in Redundanz mit dem logischen Eingang DI2. Konform mit EN 954-1 Kategorie 2 oder 3 ohne Überstromschalter.Uso dell'ingresso di sicurezza SDI2 in ridondanza conl'ingresso logico DI2. Conforme a EN-954-1 categoria 2 o 3 senza contattore di linea.Uso de la entrada de seguridad SDI2 en redundancia con la entrada lógica DI2. Conforme a EN-954-1 categoría 2 ó 3 sin contactor de líneaGebruik van de veiligheidsingang SDI2 met de logische ingang DI2. Conform EN-954-1 categorie 2 of 3 zonder lijncontactor.2/24 - Wiring diagram - Schéma de raccordement - Verbindungsschema - Schema di collegamento - Esquema de conexión - Aansluitingsschema4.1 - Brake - Frein - Bremse - Freno- Freno-RemSecureS (§4.2)1 : Run / Stop - Marche / Arrêt - Gang / Anhalten - Marcia / Arresto -Marcha / Parada - Aan / Uit2 : Fault relay - Relais de défaut - Störungs-Relais - Relè di guasto -Relé de avería - Foutrelais3 : Safety relay - Relais de sécurité - Sicherheits-Relais - Relè disicurezza - Relé de seguridad - VeiligheidsrelaisBrake Frein Bremse Freno Freno RemDedicated digital output Sortie logique dédiéeZugeordneter logischer AusgangUscita logica dedicata Salida lógica dedicada Voorbehouden logische uitgangSpeisung Alimentazione Alimentación VoedingAC OUT U S。
箱变安装使用说明书(中英文)

箱式变电站产品Series Compacted Package Sub-station安装使用说明书O peration Manual1.概述GeneralXBJ1系列紧凑型箱式变电站是由天津电气传动设计研究所组织全国百余家企业联合开发的新产品,它吸收了美式箱变、欧式箱变和国产箱变三大派别的优点,采用了新材料新工艺及先进的元器件和高低压自动化技术;其中高压侧能满足电力部门对于配电网自动化的要求,低压侧能满足小区物业管理智能化的要求。
该系列箱式变电站是由高压单元、电力变压器、低压单元、计量单元及智能系统等,优化组合成的完整的智能化供配电成套装置,它功能多,用途广,运行安全可靠,外型美观,并具有安装方便,少占地,少维护,少投资,见效快,寿命长等特点。
可作为城市建筑、居民小区、市政设施、工厂、矿山、公路、码头、油田及施工临时用电等部门、场所的变配电设备。
XBJ1 series intelligent package sub-station is new products developed by Tianjin Electric Transmission Project Institution and other hundreds of companies. The new products combine the advantages of package sub-station from US, European, and China to fit in the situation in our country. New materials, new process and advanced components and automatic technology for high and low voltage are used in the products; the high voltage siding satisfies the requirement of the automation of power supply network from power supply departments and the low voltage siding satisfies the requirement of community intellectualization. XBJ1 series intelligent cabinet transformer station is composed of optimizing the configuration of high voltage components, power transformer, low voltage components, measurement components and intelligent system. It is multifunction and has wide applications. It is able to run reliable and environment friendly. It has beautiful outlooks and id easy to be installed. It has the advantage of taking up less land, les maintenance, less investment, long lifetime. It can be used as power transform and distribution equipment in city construction, communities, city facilities, factories, mines, road construction, harbor, oilfields and can be also used as temporary construction power supply equipment.2.型号说明Symbol ExplanationX B J 1 —37 /0.315M J 1000变压器容量Rated power 1000kVA外壳材料Enclosure materialJ:金属;Metal结构形式P:品字Structure低压侧额定电压: (0.315kV) Secondary Rated Voltage高压侧额定电压: (37kV) Primary Rated Voltage方案号Scheme Number设计序号Design Serial NumberJ:紧凑型Compacted变电站Sub-station箱式Package3. 使用条件:Using Condition3.1 海拔高度:一般不超过2000m.3.2 周围气温:-15℃~+40℃(智能型-5℃~+40℃)(特殊订货条件:严寒气候为-50℃~+40℃;酷热气候为-5℃~+50℃.)3.3 相对湿度:日平均值不大于95%; 月平均值不大于90%.3.4 地震烈度:水平加速不大于0.3g.3.5 无经常性剧烈震动场所.3.6 周围空气应不受腐蚀性或可燃性气体等明显污染.3.7 安装倾斜度不超过3度.3.8 风负荷≤34m/s.3.1 Height above sea level: less than 2000m3.2 Ambient temperature: -15℃~+40℃(for intelligent package sub-station: -5℃~+40℃)(special condition: Cold climate-50℃~+40℃;Hot climate:-5℃~+50℃)3.3Relative humidity:Daily value less than 95%; Average month value less than 90%3.4Earthquake intensity: Level speedup less than 0.3g3.5 No recurrent severe vibration places3.6 Ambient air is not obvious polluted by corrosive or flammable gases.3.7 Installation gradient is less than 3 degrees.3.8 Wind load: ≤34m/s.4. 结构简介Structure本设计考虑到供电用户需求的多样性,在箱变本身结构上,采用模块式结构。
110kV级及以上变压器安装操作说明书(英文版)

Content1. Introduction1.1 Scope of Application1.2 Product Type Specification1.3 Transformer Structure2. Transporting and Hoisting2.1 Requirement for Transporting2.2 Subject Transporting2.3 Subject Hoisting2.4 Subject Pulling and Lifting3. Acceptance and Storage3.1 Inspection of Merchandise Received3.2 OOBA Acceptance for Accessories3.3 Acceptance Storage3.4 Insulating Oil Management4. Installation and Inspection of Transformer4.1 Preparation for Transformer Inspection4.2 Conditions and Precautions for Transformer Inspection4.3 Scope of Transformer Inspection4.4 Test of Transformer Inspection5. Integral Compounded Installation and Vacuum Oil Filling5.1 Preparation for Installation5.2 Installation Program Flow5.3 Vacuum and Vacuum Oil Filling5.4 Replenishment and Standing5.5 Vacuum Oil Filling of Transformer without Inspection5.6 Installation of Other Components6. Pre-test Inspection and Acceptance Trial6.1 Pre-test Inspection6.2 Acceptance Trial7. Inspection Before Launch and Unload-energization7.1 Inspection Before Operation7.2 Unload Test7.3 Unload-energization8. Operation and Maintenance8.1 Operation8.2 Maintenance8.3 Transformer Failure Analysis and ClearanceⅠ. Introduction1.1 Scope of Application1.1.1 This specification is a document of technological guidance in installation and application, only applicable for oil-immersed transformer of 110kV (including off-circuit tap changing transformer, on load tap changing transformer, auto coupling transformer, and commutator transformer).1.1.2 Scope of Application: Requirements of transformer transporting by railway, road and ship; precautions for field acceptance and storage; field operation flow and acceptance trial; conditions for launch and daily maintenance; failure identification, etc.1.1.3 Application of this specification should be integrated with specific structure of transformer for proper construction according to relevant terms of technological requirements in the specification. For any question, please contact with the manufacturer for appropriate disposal. 1.2 Product Type Specification1.2.1 Type Specification for Oil-immersed Power TransformerS F S Z □ - □/□V oltage Class (kV)Nominal Capacity (kV A)Code of Performance LevelV oltage Regulation Mode:“Yes”means on load tap changing,“No”meansoff-circuit tap changingWinding No.:“Yes” means three windings, “No” means two windings.Cooling system: “Yes” means air cooling, “No” means self cooling.Three-phase transformer1.2.2 Type Specification for Immersed-type high-temperature-resistance power transformerS F S R N Z- □ /□V oltage Class (kV)Nominal Capacity (kV A)V oltage Regulation Mode:“Yes”means on load tap changing,“No”meansoff-circuit tap changingHigh temperature resistanceInsulating (cooling) medium is fire-resistant fluidWinding No.:“Yes” means three windings, “No” means two windings.Cooling system: “Yes” means air cooling, “No” means self cooling.Three-phase transformer1.3 Transformer Structure1.3.1 CoreThe core is wholly made of high permeability grain-oriented cold-reduced silicon sheet steel, automatically assembled by E-shape fully automated card stacker imported from Switzerland. The burr at sheared edge is no longer than 0.02mm. Appropriate set-up colligation is used for orientation of core leg so as to increase mechanical intensity and decrease open circuit losses and noises.1.3.2 CoilHigh-voltage coil is formed by interleaved continuous winding for small capacity and inner-screen continuous winding for large capacity in order to improve the voltage property under impulse voltage and reach even voltage distribution. The stay and bracket are all planed round edges to improve insulation reliability. Twist directed forced oil structure is designed inside transformer winding so that each part can be fully cooled to decrease the temperature rise of winding and its thermal point and prolong the insulation life. High and medium voltage regulator is equipped with individual regulating wingding so that each winding has balanced ampere-turn, and consequently to decrease the axial electromotion at short circuit of transformer and improve its capability to resist sudden short circuit. The winding radial is designed in “0” margin, keeping dry and close fitting between core and low-voltage winding cylinder, stay and boarding set, and among low-voltage, high-voltage and regulating winding so that the entire winding has great tightness and concentricity.1.3.3 Subject InsulationThe winding insulators, such as stay, bracket, and all high-voltage electrode and metal structural components, are planed round angles in order to avoid point discharge; the winding should undergo a second vacuum drying after completion of assembly, and the body shall have another kerosene gas drying, in which way the moisture content is greatly reduced from insulators and the body becomes more cleaner. Partial discharge of product is reduced through the technics mentioned above.1.3.4 LeadIn respect of high voltage lead, high-quality tapping switch is used for on-load tap changing, and the lead is connected by cold press with shielding process for round angle; for off circuit tap changing, single-phase off circuit tap changer is used.1.3.5 Oil ContainerThe transformer is equipped with a bell type tank and detachable finned radiator.Ⅱ. Transporting and Hoisting2.1 Requirement for Transporting2.1.1 Transformer transported with oil filling should be filled with qualified transformer insulating oil with the height of 150mm below the container top, and detach the radiator, conservator, moisture absorber, temperature controller and high and low voltage casing pipe and fan of 10000kV A and above, and make separated casing transportation, taking enough additional insulating oil along with subject transportation.2.1.2 Transformer transported with nitrogen fill shall be filled with nitrogen gas with 99% purity and a dew point no higher than -30℃. Besides, install a nitrogen-filling equipment and steam gage on top of the oil container, and keep the positive pressure inside container of 1.96~2.94×104pa.2.1.3 Transportation loading should be carried according to the rules of relevant transportation department.2.1.4 During transportation, the impact recording instrument should be installed on the wall or cover of oil container. The measuring range is between ±1 and ±5g (g is the unit for acceleration of gravity), and the recording sensibility is 1.5~2 mm/g with 500-3000 times of recording.2.1.5 Transportation with on load tap changer must have oil filling in the height of at least 150mm lower than the container top.2.2 Subject Transporting2.2.1 During the whole process of transportation (despite of by railway, road or ship), the subject obliquity of no more than 15° in direction of long axis and no more than 10° in direction of short axis.2.2.2 Humping impact is prohibited. Acceleration of gravity for transportation: No more than 0.5g for axial acceleration, and no more than 0.3g for lateral acceleration.2.2.3 Less than 15km/h on first-class road, and less than 10km/h on second-class road.2.3 Subject Hoisting2.3.1 The hoisting equipments, tools and groundwork of loading site should be capable of bear the hoisting weight (transporting weight) of transformer.2.3.2 The angle of hoisting sling should be more than 30°.2.4 Subject Pulling and Lifting2.4.1 The working point of subject pulling should be hanging on the appropriate drawplate hole of bottom part of tank, not allowed to hang on such components incapable to bear weight as tube connector.2.4.2 The pulling speed of dolly or rollarounds on the track should be no more than 100m/h.2.4.3 For subject loading on slope, the slope angle should be less than 10° and the length more than 10m as well as with skidproof device.2.4.4 When using a screw jack, it should be place under the hoisting bracket. When lifting and landing, it should keep working in phase with the same speed, preventing the jack from skidding.Ⅲ. Acceptance and Storage3.1 Inspection of Merchandise Received3.1.1 Check and accept according to purchase order the products, nameplates, accessories and spare parts.3.1.2 Inspect the subject and accessories for any shifting or impact and make detailed records. For any problem, contact with the manufacturer and transportation department to find out reasons and make proper disposal.3.1.3 Check the transformer transported with filling for oil penetration or leakage as well as the oil head and make records.3.1.4 Check the transformer transported with nitrogen fill whether the nitrogen gas is kept in positive pressure and make records.3.1.5 Check the accessory packing container for any damages or losses. If any problem is discovered, contact with the manufacturer and verify the damages and losses for proper disposal.3.1.6 Check whether the number of container arrival tallies with that on the packing list, and for any miss delivery or wrong delivery. For any problems, contact with the manufacturer for proper disposal.3.2 OOBA Acceptance for Accessories3.2.1 With respect to the transformer with a capacity of over 90000kV A, it is necessary to contact in advance with the manufacturer and inform the time for OOBA so as to operate together withthe manufacturer.3.2.2 Check the components, accessories and parts in the container according to the packing list of each small container. Any damages or miss packing should be recorded.3.2.3 Check for complete factory document, technological material and certificate of competency.3.3 Acceptance Storage3.3.1 If no miss delivery is found after OOBA, make detailed records and sign in.3.3.2 The components, accessories and parts in OOBA should be stored according to their property character. Measures must be taken to prevent direct access of rain, water, snow and corrosive gas.3.3.3 The equipments, instruments, and components with electric elements (e.g. operation cabinet and general control cabinet) should be stored in ventilated and dry places with dampproof treatment.3.3.4 For the transformer transported with oil filling that shall not be installed within 2 months after arriving in site, it should be equipped with conservator (including conservator with on load tap changer) and filled with qualified insulating oil to the fuel head in relevant conservator temperature, and installed with ventilator on the top.3.3.5 For transformer transported with nitrogen fill that shall not be installed within 1 month, nitrogen gas should be discharged and it will be filled with qualified insulating oil.3.3.6 When the condenser type bushing are stored for over 6 months, it is necessary to lift the bushing end to a horizontal angle of more than 15°, or remove from the packing container and vertically placed.3.3.7 In respect of those mentioned above, an inspection every 3 month is need during the storage period for rust or oil leakage. Besides, sample the oil for test every 6 months and make detailed records.3.4 Insulating Oil Management3.4.1 When the insulating oil is filtered and filled into the oil tank, it should be protected from mixing of impurity, air pollution, humidity and rainwater. Reladling filtration in rainy days is prohibited.3.4.2 The oil tank must be carefully cleaned and inspected for sealing condition. The unsealed tank should be equipped with drying ventilator.3.4.4 Other property indexes are in accordance with GB/T2536-1990 Quality Standard for Transformer Oil.3.4.5 Generally the insulating oil provided by manufacturer should be preferred to use. If it is necessary to make up oil from other resources, it must subject to relevant mixing requirements, and tests by related authority shall be made to verify feasibility of oil mixing. In other cases combined using is prohibited.Ⅳ. Installation and Inspection of Transformer4.1 Preparation for Transformer Inspection4.1.1 As stipulated in Clause 3.4, filter enough insulating oil.4.1.2 When it is necessary to make overall check because of problems or failure occurred during transportation, remove the upper part of tank and make subject inspection, or make inspection through manhole or viewing hole without removing the upper part of tank.4.1.3 For transformer transported by ship, subject inspection is generally necessary.4.1.4 For transformer transported with nitrogen fill that shall not be installed within 1 month, nitrogen gas should be discharged before subject inspection (notice human safety during nitrogen discharging and avoid suffocation)4.1.5 For transformer transported with oil filling, during oil discharging the air must have drying treatment (with dry air producer, such as silica gel tank, the dew point should be no higher than -30℃) before entering the oil tank.4.1.6 When lifting the upper part of tank, for the single-phase off circuit tap changer, remove theoperation rod and record correct order for reassembly; for the three-phrase off circuit tap changer, remove the upper flange and switch relevant core from the on load tap changing transformer according to technic requirements in general assembly drawing and Specification for Switch Application. For specific information, see the Specification for Switch Application.4.1.7 As for the bushing current transformer, remove the lead connected with junction box on the tank, and make proper markings for reassembly.4.1.8 Prepare hoisting equipments, vacuum devices, oil filters, safety lamps, tools and materials, etc. The tools and personnel should be assigned in division of labor.4.1.9 Lifting of upper part of tank must be kept in balance.4.2 Conditions and Precautions for Transformer Inspection4.2.1Outdoor inspection should be carried out with dust prevention4.2.2 The transformer must be cleaned with specific tool, and specific staff shall set down too using. The clothes and shoes entering the tank must be cleaned up, ensuring no foreign body drops into the tank.4.2.3 During subject inspection, the ambient temperature should be higher than 5℃, and self temperature should be higher than ambient temperature. Increase its self temperature to 10~15℃higher than ambient temperature if possible.4.2.4 When entering the tank for inspection in cloudy day, blow heated dry air into the tank continuously.4.2.5 As for the exposure time of transformer in the air, count from the time of oil or nitrogen gas discharging, following the following requirements:a. For relative humidity lower than 65%, 14h at most;b. For relative humidity lower than 75%, 10h at most;c. For self temperature higher than air temperature, increase by 2h.4.2.6 The ladder and tools with sharp edge used in inspection should not be placed on the lead or insulator. It is prohibited to climb on the lead bracket.4.2.7 The coil lead should not be randomly bended but kept in the originally installed position. 4.2.8 It is prohibited to replace bulb or repair inspecting tool in the tank.4.3 Scope of Transformer Inspection4.3.1 Check the core for any shifting or distortion, and whether the bolt and drawplate clamped by core become flexible.4.3.2 Check for any shifting of transformer or loose of attachment screw.4.3.3 Check for coil shifting and loose, insulator damage, foreign body between layers and loose axial stud.4.3.4 Check the lead for any damage and distortion, loose and damage in insulation binding, lead position, and whether the root taper insulator is in good condition with correct insulation distance.4.3.5 Remove the lead and use temporary bracket or bracing device.4.3.6 Check the grounding of core, clamp, metal clamping plate and side yoke plate.4.3.7 Inspect all fastening pieces and stud, and check whether it is firmly clamped between bakelite and nut as well as bracket and bolt.4.3.8 Check the changer contactor and make sure the three-phase contactor is in the same position and in accordance with that of factory setting.4.3.9 Inspect inside the tank and shielding facility on tank wall for any burr, sharp edge, foreign body, filth and other substances relevant to transformer, and clean up if any.4.4 Test of Transformer Inspection4.4.1 Check whether the core is one-point grounded (the core is grounded with cable through bushing to the outside of oil tank).4.4.2 Measure the core screw for insulation to iron core and clamp (unless no core screw is fixed) 4.4.3 Measure the action routine of on load tap changer (operate according to Specification for Application of On Load Tap Changer).4.4.4 Check the side yoke plate for suspension and grounding.4.5 After completion of inspection and oil discharging, firstly install all valves of bottom part of tank removed because of off-gauge transportation. As for vacuum and vacuum oil filling, block out the flange valve for the next vacuum filling and component reassembly.Ⅴ. Integral Compounded Installation and Vacuum Oil Filling5.1 Preparation for Installation5.1.1 Clean up and wash all accessories, rinse with qualified oil the component and condenser (radiator), conservator, oil conduit and ascending flanged base that directly touch with transformer oil. No metal net should be used in the pipeline during rinse in order to avoid falling into the tank.5.1.2 Make sealing property test for accessories according to relevant requirements and standards. Any accessory fall short of the required standard shall be disposed or replaced.5.1.3 Check whether each flange interface is clean and the sealing pad is complete and smooth. 5.1.4 Measure the insulation resistance of bushing current transformer whether the transformation ratio and polarity are in accordance with the nameplate and technical document.5.1.5 Refer to specification of condenser type bushing to measure the property index of bushing.5.1.6 Identify the temperature limit value according to Specification of Temperature Controller.5.1.7 Identify the signal and tripping value setting according to Specification of Air Relay.5.1.8 Check the operating contact and restoration according to Specification of Pressure Valve. 5.1.9 Check the oil level according to Specification of Conservator.5.1.10 The operations mentioned above may be carried out before transformer inspection so as to assemble the whole body in time.5.2 Installation Program FlowThe following flow is arranged according to actual situation in installation site. In the absence of exceptional circumstances, integral reassembly should be carried out according to this flow. Each flange interface should be evenly stressed during assembling.5.2.2 The tube line put up by the user or cut and welded in site should be cleaned up and rinsed with qualified insulating oil.5.2.3 Assembly of other accessories shall subject to the Table of Detachment in the factory documents.5.3 Vacuum and Vacuum Oil Filling5.3.1 As stipulated in Clause 4 and 5, transformer that may finish the overall inspection and reassembly should be vacuumed and filled with oil immediately after completion of reassembly.5.3.2 As stipulated in Clause 4 and 5, transformer that may not finish the overall inspection and reassembly should be filled with qualified insulating oil in time. When the oil is discharged on the second day, continue the operation in Clause 4 and 5, or make vacuum and vacuum oil filling after completion of overall reassembly.5.3.3 As for transformer with on load tap changer, discharge the insulating oil in the changer together with the transformer, and use a U-shape tube to connect changer tank and transformer tank in specific position so that the changer tank can be vacuumed at the same time, and meanwhile connect oil filling tube of on load tap changer so as to make vacuum oil filling together with the transformer.5.3.4 Shut off the butterfly valve of conservator, oil refiner, and on load tap changer while the other valves are kept open.5.3.5 Install vacuation pipe and vacuum meter at the φ50 butterfly valve on top of the tank or at the flange of gas relay header pipe, and connect to vacuation equipment.5.3.6 Install oil filling tube at φ80 brake valve of bottom part of tank, and connect to the oil tank through oil filter.5.3.7 Activate vacuum pump and start to vacuumize. Equably increase vacuum degree. Keep the5.3.8 As for vacuum oil filling, fill in qualified insulating oil in vacuum with a duration of ±5% of the table above. Notice that oil in the tank should be heated to 50~60℃, and filled in a speed of 4t/h. The insulating resistance should have no apparent declining during oil filling, or else the oil filling should be slow down.5.3.9 Top filling when the oil head is 100mm below the tank cover. Keep vacuum for at lease 5h, and 10h for over 220kv90MV A. At the same time, fill in qualified insulating oil into the tank withon load tap changer. After that, release vacuum and remove vacuation tube and devices.5.4Replenishment and Standing5.4.1 Mount replenishment filling tube at the φ50butterfly valve on top of the oil tank (as replenishment filling must be carried out on upper part of tank, or else insulating oil with vacuum treatment in the tank should be mixed with air bubble, decreasing the static pressure of oil filter).5.4.2 During installation of air relay, open the conservator, oil filter and other brake valve, butterfly valve to be operated. Localize after the valve is checked open.5.4.3 Remove U-shape tube for connection with on load tap change and transformer tank, and seal the flange in that position.5.4.4 Make replenishment, and gradually open the ascending flanged base, oil conduit and oil collector (radiator) according to the rising height of oil head. Mount air relief cock in the top position, like the conservator, to exhaust air, and turn off the cock after oil discharging.5.4.5 Fill in oil to the oil header of relevant temperature (As for air relief of conservator, refer to Specification of Conservator). Besides, fill oil to conservator with on load tap changer to the oil header of relevant temperature.5.4.6 Integral sealing test should have a pressure below 3.92×104Pa or erected with a 1.5~2m oil column, checking for and oil leakage of the tank.5.4.7 Time for standing should be no less than 24h counted from completion of replenishment, during which time it should have air relief for several times.5.5 Vacuum Oil Filling of Transformer without Inspection5.5.1 Transformer without inspection should be consulted with manufacturer according to transporting situation and relevant regulations.5.5.2 Transformer transported with nitrogen fill should be vacuumed and have vacuum oil filling and replenishment according to Clause 5.3 and 5.4.5.5.3 As for the transformer transported with oil filling, the vacuum degree should, after oil discharging, be reduced by 20% according to Clause 5.3, and be filled with oil based on that of Clause 5.4.5.6 Installation of Other Components5.6.1 Configure control circuit according to Secondary Control Wiring Diagram in factory document5.6.2 As for forced oil forced air cooled transformer, the control circuit should be connected according to Wiring Diagram for Fan Control in factory document. Active one by one the electric fan or oil-immersed pump, and check the blowing direction of electric fan and oil flowing direction of oil-immersed pump. If the pointer of oil-flow electric relay moves flexibly, it is regarded as in good condition; If the relay does not move or appears trembling or slow reaction, it is regarded connect in reversed phase sequence, which should be adjusted in time.5.6.3 Install the temperature controller after the thermometer seat is filled with insulating oil.5.6.4 As for installation of horizontal axis and vertical axis of on load tap changer, it should subject to the Specification of On Load Tap Changer. Adjust the winding number and spacing performance until they are sensitive, and meanwhile connect the remote display device.Ⅵ. Pre-test Inspection and Acceptance Trial6.1 Pre-test Inspection6.1.1 Check whether the tapping changer is in correct position and three phrases are in accordance. Transformer with on load tap changer should be inspected on the fast mechanism, operating cabinet and distant display device for coincidence of action data.6.1.2 Check the insulating distance if outer space of transformer with the minimal value shown in the following table:Air Insulation Space (mm)6.1.3 Check the oil header of conservator for any false oil header.6.1.4 Check whether the grounding system is correct and reliable, e.g. end shield of condenser type bushing, public neutral of autotransformer, and neutral of on load tap changer.6.1.5 Check the grounding of iron core, ensuring one-point grounding with no circuit.6.1.6 Check whether the oil tank is reliably grounded.6.1.7 Check the valves of components to be operated whether they are open (excluding accident fuel outlet valve) and make air relief again if necessary (such as air electric relay and ascending flanged base, etc.).6.2 Acceptance Trial6.2.1 Ensure that insulating resistance of each coil is no less than 85% of factory set value.During Tgδ measuring, convert to 20℃ according to the following table when the temperature is not equal to 20℃:6.2.4 Measure the DC resistance of each coil and compare with factory set value.6.2.5 Measure the transformer ratio of each tap position.6.2.6 Make sampling test from the sample equipment of bottom part of oil tank according to Clause 3.4.3.Ⅶ. Inspection Before Launch and Unload-energization7.1 Inspection Before Operation7.1.1 Check whether the neutral of transformer power is in reliable grounding (direct grounding in impact).7.1.2 Inspect whether each protecting device, circuit breaker setting and synchronizing sensitivity are in good condition.7.1.3 Check the relay protection, such as air electric relay, thermometer, pressure relief valve and bushing current transformer whether the leads of measuring circuit, protecting circuit and control circuit are properly connected, and make test of short circuit linkage in necessary.7.1.4 Check whether the bushing current transformer without load is short circuited. Open running is not allowed.7.1.5 As for the forced oil-circulated condenser, check whether the auto throw-in and draw back of control system are in reliable condition.7.1.6 Check for free respirator of conservator.7.1.7 Repeat the checking in Clause 6.1.7.1.8 Check the setting of protecting device. If the system is in unstable voltage, adjust the setting of protecting system to a proper value so as to protect the transformer.7.1.9 During off load switching, the signal contact of air relay should be taken into heavy gas action contact (trip circuit).7.2 Unload Test7.2.1 The following tests can be made only when the aforesaid inspection and test project meet relevant requirements.7.2.2 Transformer should be connected with voltage through power side so as to cut off the supply in abnormal conditions as the power side is equipped with protecting device.7.2.3 Set the time limit of over current protection to instantaneousness.7.2.4 After connection with voltage, the transformer is gradually increased from 0 to nominal voltage and kept for 20min. Measure unload losses and unload current, and compare with factory set value.。
ABB DTL型解放式变压器选型、安装指南书籍说明书

Type DTL, De-energized Tap Changer Application, Installation & Selection GuideIZUA 4643-212Instruction LeafletScopeThis leaflet contains general information about ordering and installing the type DTL de-energized tap changer. These in-structions do not describe all possible contingencies that may arise during installation, operation, or maintenance of the tap changer, nor does it describe all details and variations of the equipment. If you require additional information regarding this installation and the operation or maintenance of your equip-ment, contact the local representative of ABB.Safety DefinitionsSafety notations are intended to alert personnel of possible personal injury, property damage, or even death. They have been inserted in this instructional text prior to the step in which the condition is cited.The safety notations are headed by one of three hazard intensity levels, which are defined as follows:DANGER- immediate hazard that will result in severe personal injury, property damage, or death.WARNING- hazard or unsafe practice that could result in personal injury, property damage, or death. CAUTION- hazard or unsafe practice, which could result in minor personal injury, or property damage. IntroductionT he type DTL de-energized tap changer is one of a family of ABB tap changers for power transformers. A de-energized tap changer is a switch that is connected to the winding taps of the transformer. When the tap changer is moved from one position to another the amount of the tap winding connected into the circuit is changed. This permits the adjustment of the voltage ratio of the transformer to best suit the voltage require-ments at the transformer’s installation site. The de-energized tap changer is usually installed into the high voltage circuit of the transformer, and most of the time, it is used to adjust the primary voltage of the transformer within a 10 percent range in 5 steps.D A N GE RTHE TYPE DTL TAP CHANGER IS A DE-ENERGIZED TAP CHANGER AND MUST BE OPERATED ONLY WHEN THE TRANSFORMER IS COMPLETEL Y DE-ENERGIZED. THIS TYPE OF TAP CHANGER MUST NEVER BE OPERATED WHEN THE TRANS FORMER IS ENERGIZED. OPERA-TION WHEN THE TRANS FORMER IS ENERGIZED IS DANGEROUS AND WILL RESULT IN SEVERE PERSONAL INJURY, PROPERTY DAMAGE, OR DEATH.The type DTL tap changer is a modular, electrically, linear-type tap changer with an external operating mechanism. It is most commonly available as a 5-position device. (See Figure 1) The DTL is designed to be mounted in the space between adjacent transformer coils and to be held in place by an insu-lating framework, which is attached to the transformer super-structure. Figure 2 shows a typical DTL installation.RatingsThe type DTL tap changer is available in two basic current ratings, 500 A (Figure 3) and 1000 A ( Figure 4), and is of-fered with, or without, electrostatic shielding (see page 3). The ability to locate the type DTL tap changer in between each phase coil permits very direct tap lead routing with a minimum of bends.Figure 1.Tank Wall or GroundFigure 2.2ABBABB31See Figure 42This is dependant on how the tap changer is applied to the transformer (electrical clearance distances) and electronstatic shielding used.3Based on a steady state contact temperature of 15º C at a continous current equal to 120% of the rated current.Figure 3. Type DTL 500 AFigure 4. Type DTL 1000 ATable 1. Presents the ratings4ABBConstruction Details and FeaturesBasic InformationThe type DTL de-energized tap changer is constructed from six major components:1. Main Housing2. Sliding Rack3. Moving Contact (Sliding Contact)4. Common Contact5. Stationary Contacts6. Drive Shaft and External Operating Mechanism Figure 5 shows the first six major components and somemounting details.Main HousingThe main housing consists of two flat insulating plates fastened together with insulating bolts and spacers to form a sandwich-like structure. The stationary contacts and the common contact are bolted to the main housing at its upper end and the driving gear pinion and shaft connector are attached at its lower end. The main housing contains two sets of mounting holes, which are used to bolt the tap changer to the transformer framework. The flat insulat-ing plates are machined from high strength, electrical grade, low power factor Micarta™. This structure carries all of the mechanical loads created by the weight of the tap leads and the thrust and weight of the drive shafts.Sliding RackThe sliding rack rides in the space between the two main housing plates. The moving contacts are attached to the sliding rack at its top end. The bottom end of the sliding rack is machined into a linear Geneva gear, which is moved vertically by the rotary actionFigure 5. Major Components of the DTL Tap Changerof the drive pinion. One full turn of the drive pinion moves the sliding rack from one stationary contact to the next. The sliding rack is machined from the same Micarta™ material as the main housing plates.ContactsThe stationary contacts and the common contact are machined from 3/4 of an inch (19 mm) diameter copper bar stock.In the 500-Ampere switch, these contacts are bolted between two Micarta plates of the main housing. Two bolts are used for each contact. The bolt heads and nuts are shielded with special toroidially shaped washers to minimize electrical stress concentration.In the 1000-Ampere switch, there is a set of two stationary and two moving contacts for each tap position. A copper connector is bolted between each pair of stationary contacts. Four bolts are used to secure each set of stationary contacts and connector.The connection between the stationary contacts and the transformer’s tap leads is made using the standard ABB UZ tap changer cable lug (see UZ technical guide 1ZSE 5492-104). This lug accepts the tap cable into a tubular recess; the cable can be held in place by either crimping or brazing to the lug. The other end of the lug contains a captive steel, M10 (0.40 inch) bolt with a hex recess. The cable lug attaches to the stationary contact by means of this bolt, which is threaded into a tapped cross-hole on the end of the stationary contact. In the 1000-Ampere switch, the tap lead is connected to the copper connector between the contacts. The cable lug is available in several sizes to suit the tap cable diameter.The moving contact assembly is a clam-shell type of contact. The spring loaded contact plates slide over the stationary contacts. All stationary and moving contacts are made from silver plated cop-per.Two springs precisely control contact pressure. These springs are designed to interact with the contact plates and the support struc-ture to provide uniform and consistent contact pressure. This fea-ture permits the tap changer to have a relatively low driving torque and high fault current withstand capability by preventing contact bounce and arcing during faults.The action of the sliding contact over the moving contact during a tap change creates a good wiping action that cleans contact sur-faces. This wiping action insures a solid, low resistance electrical connection.2. Sliding Rack4. Common Contact Linear Geneva GearElectrostatic Shield5. Stationary Contacts (5)6.Drive Shaft1. Main Housing Lower Mounting Holes (2)Upper Mounting Holes (2)3. Sliding Contact AssemblyABB5tap action allows the driving mechanism system to absorb any backlash in the entire tap changer structure and still provide pre-cise positioning of the tap changer contacts.To make a tap change the operator must perform two separate actions:1. Pull a fixing pin which frees the mechanism shaft2. Turn the operating handle 360 degreesA number on a Geneva wheel that is visible through a view-port indicates the position number. A position number is only fully vis-ible when the tap changer is in position. Positive mechanical stops are built into the tap changing mechanism that will prevent turning past the lowest and highest positions. The external mechanism can be padlocked in any position.Electrostatic ShieldingElectrical spacing requirements between the tap decks and the tank wall and between the tap decks and adjacent phases or other metallic objects is a complex subject. When designing the transformer, required distances should be calculated between phases and between phase and ground for the DTL tap changer.Two levels of shielding and insulation are available for the tap decks.1. Unshielded decks are typically used for applications that have an impulse voltage withstand requirement of 250 kV or less (Figure 8).2. For applications that require an impulse voltage withstand of greater than 250 kV , up to 650 kV , two epoxy coated, aluminum electrostatic shields are bolted to the tap deck (Figure 9).Figure 8. No Shield The linear Geneva gear is machined into the sliding rack that carries the sliding contacts. The drive gear pinion is installed between the two main plates such that the drive pinion engages the linear Geneva gear.The interphase shafts are Micarta tubes that are attached to the drive pinions by means of a bolt through a slotted hole in the shaft. The main drive shaft is a telescoping tube assembly. This assembly connects the first tap deck drive pinion to the ball joint coupling on the inner end of the operating mechanism.The combination of slotted interphase shaft connections and telescoping drive tube allows for minor misalignments between tap changer components and permits the shafts and operating mechanism to adjust to the dimensional changes that occur as the transformer responds to temperature variations.The operating mechanism uses a packing gland backed up by a secondary o-ring to form a redundant shaft seal between the transformer and the atmosphere. The flange of the operating mechanism is gasketed and bolted to a mounting boss, which is welded to the transformer tank.The external operating mechanism drives the tap changer’s operating shafts so that one complete revolution of the external handle indexes each tap deck one position. This one-turn-per-Figure 9. With ShieldsContact Plating:•The sliding contacts are silver plated.•The stationary contacts are silver plated.•The common contact is silver plated.Details of the contact system can be seen in Figure 6.Driving SystemThe drive system consists of four parts:1. Linear Geneva gear 2. Drive pinion3. Interphase shafts (insulating material)4. Main drive shaft and external mechanism These parts are illustrated in Figure 7.4. External Mechanism2. Drive Pinion and Shaft3. Interphase Drive Shaft1. Linear Geneva Gear Telescoping Drive ShaftFigure 7.6ABBStandard ConfigurationsThe type DTL tap changer is built in one standard configuration. The operating mechanism may be ordered for mounting on either the left or right hand side of the tap decks.An ordering data sheet is provided to permit the customer to specify mechanism location, critical spacing dimensions, and crimp lug sizes.The standard switch configuration consists of three vertically mounted single tap decks (three tap decks total). The vertical units are connected together by interphase shafts (two). One of the vertical decks is also connected to the external operating mechanism.This configuration is shown in Figure 10.Figure 10.Installation and MountingInspection Upon Receiving• Check for visible damage.• All DTL tap changers are shipped with moving contacts of all decks in the same position. Please check to verify that the moving contacts are indeed in the same position before continuing.• Verify that the shipment is complete and contains all compo- nents ordered.• Check that the type designation and shop order number agree with the delivery documents (i.e. the packing list or ABB’s ordering acknowledgement). The shop order number is stamped on the rating plate.Required Tools and MaterialsOnly standard tools are required.Pre-Installation Work Required by Customer• Make the appropriate size hole in the transformer tank according to the dimensions shown in the tap changer outline drawing.• Weld mounting boss (not supplied by ABB) to the transformer wall. This weld must be gas tight.• Prepare the superstructure with holes for the assembly of each DTL deck.The DTL is usually mounted vertically, parallel to the windings.The information that follows is intended for this type of installation.If some other orientation is being considered, please consult ABB.The type DTL tap changer requires a support structure constructed of appropriate insulating materials to secure the tap changer decks vertically. This structure, which is part of the transformer design,usually also supports the HV cleats and leads. Clearance must be provided for the tap changer shaft operating system that is lo-cated at the lower end of the deck frames.Refer to the DTL dimension drawings for complete mounting details.Installation of tap changer decks:1. Make sure that all decks are in the same position.2. Install the first deck with bolts of insulating material through the two mounting holes at the top and bottom ends.3. To mount the second deck, insert one bolt of insulating material at the top to loosely hold it in place.4. Install the operating shaft between the first and second decks as follows ( Figure 11):•Slide the end of the inter-phase shaft over the U-joint ball,lining up the holes in the switch shaft and the operating shaft.•Place the spring washer, shield washer and spacer over the bolt.•Insert the spacer and bolt through the slotted hole in the operating shaft and thread into the threaded hole in the switch shaft.•In the same manner, attach the shaft to the second deck.Figure 11.5. Repeat this process for the third deck.6. To confirm that the installation has been done correctly, turn the operating shaft and observe the movement of the bridging contacts. All three phases should move together smoothly from one end to the other.7. The operating shaft between the outside deck, left or right end depending on what was ordered, and the external operating mechanism is installed after the active part has been installed in the tank. This shaft is slotted to provide some flexibility in the length to compensate for the expan- sion and contraction of the transformer tank during operation.ABB78. For attachment of the drive shaft to the first deck, first slide the slotted drive shaft back to allow for aligning the drive shaft with the switch shaft, then slide the drive shaft over the switch shaft. Insert the spacer and bolt through the slotted hole in the operating shaft and thread into the threaded hole in the switch shaft.9. Connecting tap leads:•Cut tap leads to the correct length for connection to the appropriate tap changer terminal. Crimp the supplied connectors to the tap leads. Connect the tap leads to the correct tap changer terminal. The tap leads are connected to alternate sides of the switch ( See Figure 12)Installation TipTo ease the installation of the tap changer ABB recommends that the assembly technician build a replica of the tap changer and the connection points. This replica can be installed in the place of the tap changer, allowing the tap leads and insulation to be cut to the proper length and installed without risk of damaging the tap changer. After the tap leads have been fully assembled on the replica, undo the connectors, remove the replica and then install the tap changer in its place.External Mounting BossAn external mounting boss must be fabricated and welded to the transformer tank in order to seat the operating mechanism.Processing TemperaturesT he type DTL tap changer is designed to operate properly in the transformer environment. However, the transformer manufacturer must not thermally over-stress the tap changer during transformer manufacturing and processing. The maximum temperature that the DTL tap changer can be exposed to during transformer manu-facturing is 125°C. If the tap changer will be exposed to tempera-tures greater than 125°C during manufacture, ABB should be consulted for technical guidance. Processing within the tempera-ture range of 105°C to 125°C should not exceed 48 hours total exposure time.Renewal PartsIf renewal parts are required, order them through the nearest ABB Inc. representative. Please provide the item description and the identification numbers (model, style, catalog).RepairsIn normal use, the DTL tap changer will not require repairs. We recommend that the transformer manufacturer be contacted before any repairs are made.MaintenanceABB de-energized tap changers require little or no mainte-nance to ensure proper mechanical and electrical operation of the switch. The transformer should be de-energized before operating the tap changer. The external operating mechanism should be inspected for any damage and gears should be lubricated to ensure proper operation. Operate the tap changer across its full range a minimum of twenty times to assure proper mechanical operation and cleaning of the contacts. The above should be performed if the position of the switch is changed for any reason.W A R N I N GBEFORE ATTEMPTING ANY DIS AS SEMBLY OR RE-PAIRS, DE-ENERGIZE THE TRANSFORMER AND THE AUXILIARY POWER S OURCE. FAILURE TO DO S O COULD RES ULT IN PERS ONAL INJURY, PROPERTY DAMAGE, OR DEATH.Technical SupportIf a technical question arises regarding the product detailed in this Technical Product Literature contact customer service at the address below.CommentsABB Inc. continually strives to make its instruction literature current, accurate, and easy to understand. Suggestions to improve this document may be sent to: Literature Coordinator fax (731) 696-5269 or use the mailing address below. For a reply, please include name, company, phone number, and/or fax number.ABB Inc.1128 S. Cavalier Drive Alamo, TN 38001-5561Tel: (731) 696-5561Fax: (731) Figure 12.DISCLAIMER OF WARRANTIESAND LIMITATION OF LIABILITYTHERE ARE NO UNDERS TANDINGS, AGREEMENTS, REPRES ENTATIONS OR WARRANTIES, EXPRES S ED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OTHER THAN THOSE SPECIFICALLY SET OUT BY AN EXIS TING CONTRACT BETWEEN THE PARTIES. ANY SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF S ELLER. THE CONTENTS OF THIS DOCUMENT S HALL NOT BECOME PART OF OR MODIFY ANY PRIOR OR EXIS TING AGREEMENT, COMMITMENT OR RELATIONSHIP.THE INFORMATION, RECOMMENDATIONS, DESCRIP-TION AND SAFETY NOTATIONS IN THIS DOCUMENT ARE BASED ON OUR EXPERIENCE AND JUDGEMENT. THIS INFORMATION SHOULD NOT BE CONSIDERED TO BE ALL INCLUSIVE OR COVERING ALL CONTINGENCIES. IF FURTHER INFORMATION IS REQUIRED, ABB INC. SHOULD BE CONSULTED.NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF FITNES S FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, OR WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE, ARE MADE REGARDING THE INFORMATION, RECOMMENDATIONS, DESCRIPTIONS, AND SAFETY NOTATIONS CONTAINED HEREIN. IN NO EVENT WILL ABB INC. BE RESPONSIBLE TO THE USER IN CON-TRACT, IN TORT (INCLUDING NEGLIGENCE), STRICT LI-ABILITY OR OTHERWISE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGE OR LOSS WHATSOEVER INCLUDING BUT NOT LIMITED TO DAM-AGE TO OR LOSS OR USE OF EQUIPMENT, PLANT OR POWER SYSTEM, COST OF CAPITAL, LOSS OF PROF-ITS OR REVENUES, COST OF REPLACEMENT POWER, ADDITIONAL EXPENSES IN THE USE OF EXISTING POWER FACILITIES, OR CLAIMS AGAINST THE USER BY ITS CUSTOMERS RESULTING FROM THE USE OF THE INFORMATION, RECOMMENDATIONS, DESCRIPTION, AND SAFETY NOTATIONS CONTAINED HEREIN.ABB Inc.1128 S. Cavalier Drive Alamo, TN 38001, USA Telephone: 731-696-5561 Fax: 731-696-5269 I Z U A 4 6 4 3 -2 1 2 e n , M a r c h 2 0 0 4 N e w d o c u m e n t P r i n t e d i n U S A b y T e n n e s s e e I n d u s t r i a l P r i n t i n g S e r v i c e s , I n c.。
接地变压器、接地电阻成套装置 grounding transformer、earthing resistance cabinet-中英文对照设备说明书

ENR- BNR系列接地变压器、接地电阻成套装置ENR- BNR seriesgrounding transformer、earthing resistance cabinet使用说明书Instruction for use保定市伊诺尔电气设备有限公司Baoding Enuoer Electric Equipment Co., Ltd一、概述保定市伊诺尔电气设备有限公司拥有技术优秀的研发队伍和精良的设备,引进并消化国外的先进技术,长期致力于对中性点接地技术的产品研发.生产,对降低电网过电压、提高电网的安全性、可靠性,具有良好的效果。
我公司以优质不锈钢合金材料,开发生产的系列中性接地电阻柜装置.用于 6~35kV 系统,在电缆供电的系统中,接地电容电流较大。
当电流大于规定值时,有可能产生弧光接地过电压。
中性点采用电阻接地方式的目的就是给故障点注入阻性电流,其电阻分量电流为电容分量电流的1.05~1.1倍。
可以把故障电流限制得适度,提高继电保护灵敏度,同时使故障点仅可能发生局部轻微损伤,把暂态过电压限制到正常相对中性点电压的2.6倍,防止弧光过电压损坏主设备,同时对铁磁谐振过电压有显著作用。
I. IntroductionBaoding Enuoer Electric Equipment Co., Ltd . Ltd has professional R & D team and advanced equipment. The company introduces and localizes advanced foreign technologies, and has always focused on the research, development and production of neutral grounding products which have good effect on reducing overvoltage and improving security and reliability of power systems. The company developed series of neutral grounding stainless steel resistor cabinets with import special alloy for 6 – 35KV power systems. Grounding capacitance currents in a cable power system is comparatively large. The current may resulted in arc grounding overvoltage one it exceeds specified value. The purpose of grounding neutral point with a resistor is to introduce resistant current to the fault point so to enhance the sensitivity of relayprotection to limit a fault point to slight local damages at the same time, restrict transient overvoltage within 2.6 times of normal voltage at the neutral point to avoid damage of principal equipment resulted from arc overvoltage, and substantially suppress ferromagnetic resonance overvoltage.二、型号说明II Model description三、使用条件:1、海拨高度:不超过4000m2、环境温度:-40℃~+60℃3、相对湿度:不大于95%(25℃)4、安装场所:空气中不应含化学腐蚀气体和蒸汽,无爆炸性尘埃,电阻值 Resistance value额定电压值 Rated voltage value中性点接地电阻柜 Transformer neutral grounding resistor cabinet5、电网频率:48~52Hz(50 Hz系统),58~62 Hz(60 Hz系统)6、适用于:户内、户外7、电阻安装点:正常状态下中性点位移不超过运行相电压的3%特殊使用条件,请在订货时详细提出III Conditions of use:1 Altitude: no more than 4000m2 Ambient temperature: -40 ℃ ~ +60 ℃3 Relative humidity: no more than 95% (25 ℃)4 Installation site: there should be free of chemical etching gases, steam or explosive dust in the air5 Power frequency: 48 ~ 52Hz (50 Hz system), 58 ~ 62 Hz (60 Hz system)6 Installation environment: indoor, outdoor7 Installation point of resistor: normally the neutral point voltage displacement shall not be more than 3% of phase voltage;Special operation conditions shall be stated at the time of ordering.四.产品特点1.接地电阻柜柜体材质采用不锈钢板或冷轧钢板材质,外型美观,耐腐蚀性强,防护等级可达IP55。
变压器安装使用说明书 正文英文)

Part One General首先,感谢您使用本公司的产品!本公司将竭诚为您服务!本说明书是针对本公司生产的110kV级油浸式电力变压器,包括无励磁调压和有载调压、自耦变压器等安装使用中的一些注意事项及有可能出现的现象加以说明。
使用本说明书时,若有疑问或出现本说明书未曾提及的问题请及时与本公司联系,本公司在此表示诚挚的感谢。
第二部分运输及起吊1 运输方式:本公司产品适合公路、铁路、水路等运输方式。
用户可以根据现场实际情况选择运输方式。
2带油运输带油运输的变压器在出厂时充入合格的变压器油,在常温下油面高度离油箱顶约100mm。
变压器运输时应检查有无渗漏现象,特别是箱顶无油部位有无渗漏。
有载调压变压器必须将有载开关内油放至离开关箱顶约100mm,或用专用联通管将变压器油箱与开关油箱联通。
3充氮运输充氮运输的变压器在出厂时充入纯度大于99.9%,露点不高于-40℃的纯氮气。
并在油箱顶上装置充氮设备和压力表。
运输前保持油箱内正压力在0.025~0.03MPa之间,运输过程中压力始终不应低于0.02MPa,否则应及时补气。
4运输装车、固定应严格按照有关运输部门规则执行,并在发运前得到运输部门检验认可。
5主体运输5.1整个运输过程中,(包括铁路、公路、船舶运输)变压器主体倾斜度,长轴方向不大于15°;短轴方向不大于10°。
5.2严禁溜放冲击,运输过程中变压器本体不应有明显位移。
5.3公路运输时,一级公路上速度不超过15km/h,二级公路上速度不超过10km/h。
6主体起吊6.1起吊设备、吊具及装卸地点地基,必须能承受变压器起吊重量(即运输重量),并能满足机械标准中规定的动载荷下必须具备的安全裕度之规定。
6.2起吊时应使用规定的吊攀起吊,并尽可能使每个吊拌同时受力。
吊索与垂直夹角不大于30°;无法满足时应当应采用吊梁起吊。
7主体牵引及起重7.1主体牵引时,牵引点应在变压器重心以下,钢丝绳应挂在下节油箱专用牵引孔上(或用钢丝绳捆绑在变压器油箱上)。
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Part One General首先,感谢您使用本公司的产品!本公司将竭诚为您服务!本说明书是针对本公司生产的110kV级油浸式电力变压器,包括无励磁调压和有载调压、自耦变压器等安装使用中的一些注意事项及有可能出现的现象加以说明。
使用本说明书时,若有疑问或出现本说明书未曾提及的问题请及时与本公司联系,本公司在此表示诚挚的感谢。
第二部分运输及起吊1 运输方式:本公司产品适合公路、铁路、水路等运输方式。
用户可以根据现场实际情况选择运输方式。
2带油运输带油运输的变压器在出厂时充入合格的变压器油,在常温下油面高度离油箱顶约100mm。
变压器运输时应检查有无渗漏现象,特别是箱顶无油部位有无渗漏。
有载调压变压器必须将有载开关内油放至离开关箱顶约100mm,或用专用联通管将变压器油箱与开关油箱联通。
3充氮运输充氮运输的变压器在出厂时充入纯度大于99.9%,露点不高于-40℃的纯氮气。
并在油箱顶上装置充氮设备和压力表。
运输前保持油箱内正压力在0.025~0.03MPa之间,运输过程中压力始终不应低于0.02MPa,否则应及时补气。
4运输装车、固定应严格按照有关运输部门规则执行,并在发运前得到运输部门检验认可。
5主体运输5.1整个运输过程中,(包括铁路、公路、船舶运输)变压器主体倾斜度,长轴方向不大于15°;短轴方向不大于10°。
5.2严禁溜放冲击,运输过程中变压器本体不应有明显位移。
5.3公路运输时,一级公路上速度不超过15km/h,二级公路上速度不超过10km/h。
6主体起吊6.1起吊设备、吊具及装卸地点地基,必须能承受变压器起吊重量(即运输重量),并能满足机械标准中规定的动载荷下必须具备的安全裕度之规定。
6.2起吊时应使用规定的吊攀起吊,并尽可能使每个吊拌同时受力。
吊索与垂直夹角不大于30°;无法满足时应当应采用吊梁起吊。
7主体牵引及起重7.1主体牵引时,牵引点应在变压器重心以下,钢丝绳应挂在下节油箱专用牵引孔上(或用钢丝绳捆绑在变压器油箱上)。
严禁牵挂在不能受力的组件上及管接头上。
7.2使用小车或滚杠牵引运输时速度不大于100m/h。
7.3在斜坡上装卸主体,斜坡角度应不大于10°,并应有防滑措施。
带油的变压器,应注意由于油面晃动,引起重心偏移,可能产生的突然下滑。
7.4使用千斤顶时,应放在油箱千斤顶支架下。
升起和降落时,必须保持同步,且速度相等,并应有防止千斤顶打滑的措施。
Section 3rd Site acceptance第三部分现场验收1到货验收1.1按订货合同主体验证产品型号、规格、数量。
1.2检查主体及附件在运输车上有无移位、碰撞现象,并做好记录。
若发现问题,请立即与本公司和运输部门联系,并要求运输部门提供运输记录,出具证明。
以便共同查明原因,妥善处理。
1.3带油运输的变压器检查有无密封不严、渗漏油,并检查油面高度,做好记录。
1.4充氮运输的变压器检查氮气压力是否保持正压力大于0.02MPa,并做好记录。
1.5检查附件包装箱有无破损,丢失现象,做好记录,如有问题与本公司及运输部门联系。
查对损坏、丢失情况,办理运输证明,以便妥善处理。
2附件开箱检查验收2.1请通知本公司销售或发运部门派人到现场共同清点交接附件。
2.2按产品装箱一览表查对到货箱数,是否相符,有无漏、错发现象。
并按各分箱清单,查对箱内零、部件是否与装箱单相符合。
检查有无损坏,漏装现象,并做好记录。
2.3查对出厂文件及技术资料,合格证书是否齐全。
2.4经开箱检查、验收后,办理签收手续。
签收证明为一式二份。
按照行业传统,本公司将依据签收证明提供现场服务。
Section 4th site storage第四部分现场保管及贮存1验收检查与保管1.1经开箱检查的零件、部件、组件应按其性能特点进行保管。
对密封状况进行检查,保持密封可靠。
应有能防止雨水、雪、腐蚀性气体直接浸入的措施。
同时应注意防止表面锈蚀。
1.2仪器仪表及带有电气元件(如开关传动机构,总控制柜等)的组件,须放置在通风干燥的地方,并有防潮措施。
仪器、电机应置于室内保管。
1.3带油运输的变压器,到达现场三个月内不进行安装。
须在一个月内安装上储油柜(包括有载调压开关储油柜),注入合格的变压器油至相应温度的油面高度,并在储油柜上安装干燥呼吸器,补充油必须从箱盖上(或储油柜上)蝶阀进油,以免空气进入器身。
如不能及时安装储油柜,油箱上部应抽真空并充以纯度不低于99.9%、露点不低于-40℃的氮气,达到0.025~0.03MPa的压力。
1.4充氮运输的变压器应做残油试验。
油耐压大于40kV,微水量不大于30ppm,介损不大于0.5%。
不符合时请通知本公司妥善处理。
充氮存放时,必须有压力监视装置。
应确保油箱内氮气压力始终大于0.02MPa。
超出一个月不进行安装的,须从箱内排出氮气,注入合格的变压器油至储油柜相应温度的油面高度。
1.5电容式套管存放期超过六个月时,必须把套管端头抬高与水平夹角不小于15°。
或从包装箱内取出,垂直存放,并在两头用塑料布包封。
1.6在存放期间,应经常检查本体及组件有无渗漏,有无锈蚀,油位是否正常等,并六个月取一次油样进行耐压、微水、介损检验。
2变压器油的验收与保管2.1变压器油到达现场后,应检查油的数量。
每批到达现场的变压器油,安装单位必须进行过滤处理,并应取样进行简化分析,取样应按GB7597-87《电力用油(变压器油、汽轮机油)取样》的规定。
气体分析应按GB7252-87《变压器油中溶解气体分析和判断导则》。
2.2变压器油应储存在密封清洁的专用油罐或容器内;不同牌号的变压器油应分别储存并有明显的牌号标志。
装油容器必须严格清洗,并检查容器密封情况,不密封容器必须装有干燥呼吸器。
对用油罐单独运到现场的绝缘油,安装单位必须用二级真空滤油机进行过滤,并取样进行简化分析符合2.3后才能注入变压器油箱。
2.3严禁在雨、雪、雾天进行倒罐滤油。
变压器油过渡注入油罐时,须防止混入杂质,进入潮气,被空气污染。
注入的变压器油须达到以下指标:见表1Table 12.4一般情况应尽量使用制造厂提供的变压器油,如需补充其它来源的变压器油,须经有关单位试验,确定混油的性能符合GB7597-87《运行中变压器油质量标准》的规定方可混合使用。
否则严禁使用。
其它性能指标参照国标GB2536-90《变压器油》。
Section 5th Inspection before installation1 Preparation work before installation1.1 Technical preparation按照出厂技术资料、技术文件了解变压器主体及组件结构和工作原理,掌握安装使用说明书中的安装要求。
制定安装程序和施工方案,安全措施。
1.2参照各组件的使用说明书,测试、检查各组件的性能指标,使之满足变压器运行要求,做好安装前各项准备工作。
1.3测量套管式电流互感器的绝缘电阻、变比和极性是否与铭牌及技术文件相符合。
1.4应严格清洁所有附件,保证内部清洁,不允许带有尘土、杂物的附件装在变压器上。
1.5检查各联接法兰密封面有无损伤,确保清洁平整,确认联管等部件编号,检查密封衬垫状况,确保使用合格的密封衬垫。
1.6 备足符合第四部分2.3及2.4要求的变压器油.1.7准备好起吊装置,抽真空装置、滤油机、工具照明安全灯等,并做好人员分工。
1.8 以上准备工作应在器身检查之前进行,以便及时安装变压器整体。
2 器身检查2.1 器身检查对于箱沿撬接结构为吊罩检查,当箱沿为焊接结构时从入孔进入油箱内进行器身检查。
进入油箱检查时应注意安全,避免出现磕碰等人身伤害。
当满足下列条件之一时,可不进行器身检查。
a) 本公司规定可不进行器身检查的,或在技术协议中已明确规定的。
b) 仅作短途运输的变压器,并在运输过程中进行了有效的监督,确认运输过程无异常时。
本公司原则上建议产品在现场不作吊罩检查,以避免受潮等不利因素对变压器器身构成伤害。
当用户认为有必要时,本公司将予以积极配合。
2.2 器身检查的外在环境要求2.2.1 吊罩检查时,a) 环境温度不低于0℃,器身温度须高于环境温度。
当器身温度低于周围空气温度时,可以先将器身加热,宜使器身温度高于环境温度10℃以上。
b) 吊罩场地四周应有清洁和防尘措施及紧急防雨雪措施。
2.2.2 进入油箱检查时进入油箱检查,可省掉吊升和回装上节油箱的工作,对减轻器身受潮、受污染有利,但应满足下列条件:人进入油箱后有一定活动范围的大型变压器,而且检查要内(通过进入油箱内的人的观察和触摸)外(在油箱外通过升高座法兰,手孔等窗进行观察)结合,将关键的部件都检查到。
应当切实注意:对于充氮运输的变压器,当油箱内含氧量未达到18%以上时,人员不得进入。
2.3 器身在空气中暴露时间,从开始放油或排出时开始计时,按下述进行。
相对湿度不大于65%时,不超过14小时相对湿度不大于75%时,不超过10小时当器身温度高于空气温度超过10℃时,可延长2小时。
露空时间从开始放油或开启任一盖板、油塞时算起,到开始真空或注油时为止。
在一个工作日无法完成时应立即抽真空对器身进行脱湿。
在空气中的暴露时间将从下一次开启任一盖板、油塞时算起。
露空时间超过规定后,应采取相应防护措施,并进行绝缘监测,在确保绝缘不得受潮情况下,方可继续工作。
2.4 器身检查的准备工作及注意事项a) 登上器身进行检查的人员,应穿干净的防滑鞋,衣着清洁,保证无异物掉入器身及油箱内。
b) 器身检查工具必须擦洗干净,并专人登记工具的使用情况。
c) 使用于变压器内部的绝缘材料及纯瓷套管的导电杆绝缘套必须先进行干燥处理,干燥温度95℃±5℃下连续24小时。
d) 上节油箱起吊前,应参照有关组件使用说明书及总装图拆除与其相连的部件,并做好标记以便复装。
e) 如有装在变压器油箱内部的电流互感器,须拆除与油箱上接线盒联接之引线。
f) 起吊上节油箱时,应使吊攀同时受力,吊绳与铅垂线的夹角不应大于30°,必要采用吊梁,应平衡起吊,并注意防止箱壁与碰撞或卡住等不正常现象。
g) 器身检查用梯子及带有尖角的东西,不得搭在引线、绝缘件及导线夹上,不允许在导线支架及引线上攀登。
h) 严禁在油箱内更换照明灯泡,修理检查工具。
3 器身检查内容3.1 检查铁心有无移位、变形。
铁心夹紧螺栓是否松动。
3.2 检查铁心、夹件、铁压板及旁轭屏蔽接地情况是否良好。
3.4 检查引线绝缘是否完好,引线是否保持原有状态,不得随意弯折引线,拆除用以运输时固定引线的临时支架或绑扎等。
3.5 检查分接开关三相触头位置是否一致。
3.6 检查油箱内壁及箱壁装置是否平整,固定屏蔽用紧固件是否牢靠。