MR公司M型开关说明书检修说明书
变压器检修职业技能试卷(162)
一、选择题（共 40 题，每题 1.0 分）：【1】在变压器进行检修时对铁轭螺杆的绝缘电阻允许值要求：电压等级在10kV及以下为2MΩ，电压等级在35kV 时为5MΩ，110kV及以上时为（）MΩ。
A．2B．5C．10D．15【2】两个电阻并联，其等效电阻为5.5Ω，串联其等效电阻为22Ω。
这两个电阻分别为（）Ω。
A．11和11B．22和22C．5.5和5.5D．44和44【3】变色硅胶由蓝变（）时表明已受潮。
A．白B．黄C．红D．黑【4】在RLC串联电路上，发生谐振的条件是（）。
A．ωL2C2=1B．ω2LC=1C．ωLC=1D．ω=LC【5】1μF=（）F。
A．10-6B．1000C．10D．10-12【6】锯条锯齿的粗细是以锯条（）mm长度内的齿数来表示的。
A．20B．25C．30D．35【7】变压器正常运行时的声音是（）。
A．断断续续的嗡嗡声B．连续均匀的嗡嗡声C．时大时小的嗡嗡声D．无规律的嗡嗡声【8】锉刀的粗细等级为1号纹、2号纹、3号纹、4号纹、5号纹5种；3号纹用于（）。
A．中粗锉刀B．细锉刀C．双细锉刀D．油光锉【9】电气设备停电检修时，对其实施的技术措施中，在停电和装设接地线之间必须进行的一项工作是（）。
A．挂标志牌B．设栅栏C．讲解安全注意事项D．验电【10】MR公司的M型有载分接开关是切换开关和选择开关分离的有载分接开关。
开关为（）电阻式。
A．双【11】进行三相变压器高压绕组的感应高压试验，只能（）。
A．两相进行B．分相进行C．三相进行D．怎样都行【12】三角皮带以两侧斜面与轮槽接触，因此，在同样的初拉力下，其摩擦力是平型带的（）倍。
A．2B．2.5C．3D．5【13】35kV的绕组其引线最小直径应不小于（）mm。
A．4B．3C．8D．10【14】三绕组电压互感器的辅助二次绕组是接成（）。
A．开口三角形B．三角形C．星形D．曲折接线【15】用电桥法测量直流电阻，当被试电阻在10Ω以上时，一般米用（）测量。
M型调压开关、ED电动机构结构原理及常见故障分析
M型调压开关、ED电动机构结构原理及常见故障分析何茂钦【摘要】有载调压开关是有载调压变压器的关键部分，运行和维护好有载调压开关是保证电力系统安全运行的基础．介绍了有载调压开关的工作原理，重点介绍MR公司M型调压开关和ED电动机构结构、原理及其控制回路故障查找方法。
【期刊名称】《科技创业月刊》【年(卷),期】2011(024)016【总页数】3页(P138-140)【关键词】M型有载调压开关;结构原理;ED电动机构;控制回路【作者】何茂钦【作者单位】深圳供电局,广东深圳518000【正文语种】中文【中图分类】TM11.1 有载分接开关的原理MR公司有载分接开关都设计成埋入变压器油箱内的安装形式。
有M、V、R型，组合式开关称之为M型。
M型在深圳电力系统得到广泛应用，笔者重点介绍M型有载分接开关。
M型有载分接开关是组合式的选择开关，它将切换开关和分接选择器的功能组合在一起。
切换开关安装在一个能承受压力的绝缘圆筒内，形成独立的油室，把开关油与变压器油箱的油隔离。
分接选择器安装在开关油桶底部，通过齿轮连接。
分接开关借助开关头安装于变压器箱盖上。
分接开关由电动机构驱动，通过传动轴和伞齿盒将电动机构机械地连接到有载分接开关头。
有载分接开关是保证在不切断负载电流的情况下由一个分接头切换到另一个分接头的调压装置，由于有载调压过程中不能停电，在某一瞬间，需同时连接两个分接头，因此两个分接头间将被短路，由此会产生一股很大的循环电流，为防止电流过大，必须接入一个限流阻抗。
1.2 M型有载分接开关规格代号例如：MI 1200-170/B-10193W。
M为型式，如：M，R，V；I为相数，如：I，III；1 200为最大通过电流；170为对地绝缘水平（kV）；B为分接选择器等级；10 193W，其中，10表示开关有10个触头，19表示开关有19个档位，3中间位置数；W带极性选择器（W型表示极性选择开关在分接绕组，国内使用较为广泛，G型表示极性选择开关在主变绕组，G型开关损耗较小，国外较大范围使用）。
MR型和V型有载开关介绍
提供位置信号及其它所需信号。 内部故障指示
控制器HMK7
电动机功率 电源电压 电流 频率 同步转速 驱动轴转矩 每级变换驱动轴转数 每级变换摇手柄转数 每级变换时间 最大工作位置数 对地绝缘 防护等级 重量 控制、加热回路电压 配用控制器型号
型号 B16
生产商
ABB-上海 人民电器
Q1
S1\S2 S5 S12\S13\S14 X1\X3 X20
断路器
按钮 按钮 行程开关 端子排 接插件
3VU1340-1MH00 3VU1340-1MG00 BF-22 BFL-22 Z-10FM22Y-B UK6N 721-307/031-000
德国Siemens
三相CF型有载分接开关
变压器容量
最大1500kVA
变压器电压等级 最大 10kV
对地绝缘水平
最大 35kV (50Hz,1min)
高压绕组连接 任意位置调压
分接位置数
最大 9级
电流
最大 100A
WSL型无励磁分接开关
常规产品：
最大电流1000A 最高电压等级110KV 最大分接档位数11档
接线方式
本开关适用于户内安装，电压等级为35KV，最大 额定电流为500A，△接和Y接任意位置调压的干式变 压器。
CZ三相分列式真空有载分接开关 特点
整个系统封闭式设计，防污能力强。 分接选择器,切换机构及真空灭弧室组三部分互不干扰,结构
合理。 切换机构部分采用传统机械传动系统与通用的快速切换机
构,且安装在封闭的箱体内,可实现油润滑,安全可靠。 真空灭弧室全部固定安装在结构牢固的绝缘支架内,不随触
检修案例-MR有载调压开关的吊芯检查全解
MR有载调压开关的吊芯检修
1.4 检修工作要点 典型的检修包括如下作业： 抽出和复装切换开关芯子； 清洗切换开关油室和切换开关芯子。必要时，还要清 洗分 接开关储油柜； 更换开关油； 检查切换开关油室和切换开关芯子； 确定触头磨损； 测量过渡电阻； 检查保护继电器、传动轴、电动机构，如有滤油机和 电压调整器也要检查。
MR有载调压开关的吊芯检修
2、2 拆卸上齿轮盒的传动轴 拆下联轴卡头上的4个M6螺拴。取下销照管好 螺拴螺母和锁片。一般情况下，如下图：拆开一 端就够了。
MR有载调压开关的吊芯检修
2、3 取下开关头盖板 卸下盖板上的M10螺 栓。注意不要丢失弹簧 垫圈。注意不要损坏开 关头盖板的O形密封圈。 2、4 拆卸位置指示盘 拆卸前，应注意并记 下开关头和支撑板上的 各种标记。在校正位置 时，应注意有三个对齐。 只有处于正确位置，才 能正确装配。
MR有载调压开关的吊芯检修
在安装传动轴之前， 还应检查分接开关 的档位跟电动机构 的档位是否一致。 如果不一致，则必 须解开传动轴，调 整电动机构的档位， 使其与分接开关当 为指示器的档位一 致。
档位应一致
MR有载调压开关的吊芯检修
在传动轴安装完毕后即可安装油流继电器，电压 调整器等设备。值得提醒的是：一旦油流继电器 动作，分接开关和变压器未完成检查前不允许重 新合闸。且只要有它的动作就一定要进行分接开 关的吊芯检查。
注意：分接开关油室和相连的储 油柜必须充装符合IEC 296（1982）标 准的变压器用的新的矿务绝缘油，油 室注新油若使用其他的油可能影响分 接开关和变压器的安全运行。变压器 注油后停放时间至少一小时。
MR有载调压开关的吊芯检修
在分接开关注油复装后，即 可恢复传动轴的安装，对传 动轴的安装应注意：位于变 压器本体上的传动轴应水平 装置。与操作机构连接的传 动轴应垂直。误差不能超过2 度。此外，传动轴的一端应 预留3mm以保证热胀冷缩。 传动轴的安装不好，可能会 导致传动阻力大，噪音也会 很大。会造成很严重的后果。
调压线圈功能
变压器有载调压功能的实现一、有载调压组成 (2)二、有载调压分接开关的工作原理 (2)1、过渡电路 (2)2、选择电路 (2)3、调压电路 (3)三、有载调压的线路连接 (5)1、调压线圈的接法 (5)四、调压线圈的设计原理： (8)1、等匝线圈设计： (8)2、不等匝调压设计： (8)五、有载调压开关的类型： (9)五、有载调压技术的未来发展趋势 (13)一、有载调压组成有载调压主要由有载分接开关、调压线圈等构成。
有载分接开关定义：能在变压器励磁或负载状态下进行操作，用以调换绕组的分接连接位置的一种装置，通常它由一个带过渡阻抗的切换开关和一个能带或不带转换选择器的分接选择器组成，这个开关是通过驱动机构来操作的。
调压线圈是变压器调节电压的重要组成部分，通过调压线圈的作用，可以得到所需要的电压。
二、有载调压分接开关的工作原理（一）、调压的基本原理：通过变压器一次绕组或二次绕组的加匝或减匝实现变压器电压比的变化。
调压方式：①无励磁调压：变压器一、二次侧都脱离电源的情况下，变换高压侧分接头来改变绕组匝数进行调压的。
②有载调压：利用有载分接开关，在保证不切断负载电流的情况下，变换高压绕组分接头，来改变高压匝数进行调压的。
（二）、有载分接开关是在带负载变换分接位置，它必须满足2个基本条件：1、在变换分接过程中，保证电流的连续2、在变换分接过程中，保证分接间不能短路。
有载分接开关电路是由过渡电路、选择电路和调压电路组成。
1、过渡电路过渡电路是跨接于分接点间的串接电路，与其对应的机构为切换开关。
它是在带电状态下变换变压器绕组的分接头。
过渡电路主要种类分为：单电阻、双电阻和四电阻等过渡电路。
单电阻适合容量较小电压较低的变压器使用，双电阻是目前国内广泛使用的；四电阻是容量更大的变压器采用，如MR的T型开关，西变厂的D型开关等。
2、选择电路选择电路是为了选择分接绕组分接头所设计的电路，与其对应结构为分接选择器和转换选择器等。
欧普斯莫尔恩熔断器启动切断开关操作和维护手册说明书
O p e r at i O n a n dM a i n t e n a n c e M a n ua lf u s i b l es h u n t t r i p sw i tc h2 • Fusible Shunt Trip SwitchENCLOSED INDUSTRIAL CONTROL PANELFusible Shunt Trip SwitchDevice Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Catalog Number Selection T able . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Motor Fuse Selection T able . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Wiring Diagram – 120VAC Control Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Wiring Diagram – 24V (AC or DC) Control Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7T orque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9FAQs (Frequently Asked Questions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Spare Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10D e V I C e O V e r V I e WFusible shunt trip disconnect switches are a required safety feature in many industrial and commercial applications. Main branch-circuit fuses provide overcurrent protection in the event of short-circuits, power surges, damage to electrical wiring, etc…by interrupting faulty circuitry and removing it from the electrical system. In addition, the molded case switch can disconnect power from the source prior to known electrical disturbances, before the fuse is required to operate. Integrated into the molded case switch is an electromagnet (shunt trip coil), controlling a spring-loaded conductivestrip which maintains continuity between the line side and load side terminals of the switch. The electromagnetic coil is normally connected to a safety system, such as a fire alarm or smoke detector housed in the surrounding building. Should there be an electrical emergency, a signal is sent to the coil (via the safety system, alarm, sprinkler, etc…) and the electromagnet would be engaged, throwing the switch and disconnecting power. Power can only then be reenergized by manually operating the molded case switch. • Fusible Shunt Trip Switch 3D A N g e r A N D WA r N I N g L A b e L SU L L I S T I N g I N F O r M AT I O NStep 1: Disconnect power from the circuit where the fusible shunt trip switch will be installed. Mount the panel. Wire up the line side three phase conductors into the three line side terminals of the molded case switch (L1, L2 and L3). Wire the load side to the three load side terminals of the class J fuseholder (T1, T2 and T3).Step 2: Wire the remote control elements to the specified terminal blocks shown in the wiring diagrams on page 6 and 7 (120VAC and 24VAC/DC respectively) of this manual. For 120VAC, safety system controls must supply a set of dry (no voltage) contacts. For 24VAC/DC, safety system controls must provide the voltage source.Step 3: Connect power to the circuit on which the fusible shunt trip disconnect switch is installed. T est the shunt trip operation. Close the molded case switch manually; the pilot light (if installed) indicating that the switch is closed will indicate. engage the key switch (if installed) to activate the shunt trip and trip the molded case switch. The switch will trip and the pilot lightwill turn off.e S S e r I e S–F U S I b L e S h U N T T r I P D I S C O N N e C T S W I T C hFire Alarm Voltage Monitoring relay included in all Mersen offerings. No additional part suffixes required. (Competitor Options F1 and F3)*Neutral lug rating should be greater than or equal to the switch ampere rating. For 200% lug over sizing, select next higher rating. N4 is suitable for 200% over sizing at 400A. • Fusible Shunt Trip Switch • Fusible Shunt Trip Switch 5Minimum – This sizing is recommended if motor acceleration time does not exceed 2 seconds. Minimum sizing with class J fuses will provide overload relay back up protection but may not coordinate with some NeMA Class 20 overload relays. Minimum sizing is generally not heavy enough for motors with code letter g or higher.Typical – Suggested for most applications. Will coordinate with NeMA Class 20 overload relays. Suitable for motor acceleration times up to 5 secondsHeavy – Maximum allowable fuse size when an overload relay or motor thermal protector is included in the branch circuit. If this fuse size is not sufficient to start the load, class J time-delay fuses may be increased to a maximum of 225% of full load amperes. Suggested for Design e and high efficiency Design b motors.Notes:1. Tb-5 and Tb-9 must be dry (no voltage) normally open contacts from safety system2 . If a surge protection option is selected, it will be corrected line to ground between the STS and fuses F1-F3 • Fusible Shunt Trip Switch • Fusible Shunt Trip Switch 7Notes: 1.For 24VAC control systems, 24VAC must be connected between Tb-5 and Tb-3. For 24VDC control systems, 24VDC must be connected between Tb-5 and Tb-3. Do not source AC voltage into a DC control system or vice versa.2 .If a surge protection option is selected, it will be connected line to ground, between the STS and fuses F1-F3. • Fusible Shunt Trip Switch • Fusible Shunt Trip Switch 9M A I N T e N A N C eThe following preventative maintenance measures should be considered in order to maintain product integrity •Periodically clean product exterior and interior to remove any dust, particles, tools or other. Follow proper safety precautions when performing maintenance.•Periodically check lug torque values in order to maintain product specifications. recommended torque values for all parts are shown on page 8 of this manual. Follow proper safety precautions when performing maintenance.•Preventative maintenance may include thermal-scan imaging in order to identify any “hot-spots” or generation of excessive heat. Any temperature increase, not related to load variations or ambient temperature could signal a problem with lug torque.•Maximum temperature at any lug should never exceed 75ºC under any conditions.WA r r A N T yMersen warrants to the buyer that products and any services furnished hereunder will be free of from defects in material, workmanship and will be of the kind and quality specified in Mersen standard terms and conditions. The foregoing shall apply only to failure to meet said warranties (excluding any defects in title), which appear within 1 year from the date of delivery to the customers site. All other non-Mersen manufactured components used in the fabrication of Mersen equipment shall be covered by their respective manufacturers’ warranties.10 • Fusible Shunt Trip SwitchQ: If I accidentally order the Fusible Shunt Trip Switch with a wrong component or my job parameters have changed, can the component be changed in the field?A:Unfortunately the answer is NO. T o comply with UL guidelines, product modifications can only be completed by authorized factory personnel. Other modifications will void the Mersen warranty and UL listing.Q:Are the units tested before they leave the factory?A: yeS. Mersen tests and documents every unit that leaves the factory floor. A shunt trip switch inspection report is included within every unit.Q: What is the shipping method and typical weights of a unit?A:All units are shipped on pallets via truck. Unit weight varies depending upon ampere rating from approximately 70 pounds up to 200 pounds each.Q:Why do the fuses on the control transformer keep opening?A: The safety system normally open contacts (connection between Tb-5 and Tb-9) are likely supplying voltage. Check to ensure that there is no voltage present.Q: Is there a technical support number I can call for assistance?A:yeS. Mersen offers live technical support from 8:00AM to 6:30PM eST. Call (978) 465-4853 for assistance, or email ********************************. • Fusible Shunt Trip Switch11。
SMC 平行 rm 类型门阀说明书
1Safety Instructions-------------------------- 3 pg.1.Specifications -------------------------- 5 pg.2.How to Order-------------------------- 6 pg.3. Construction / Operation--------------------------7 pg.4. Precautions--------------------------9 pg.5. Spare Parts-------------------------11 pg.6. Maintenance--------------------------11 pg.7. Troubleshooting--------------------------12 pg.Attachment: Maintenance Procedure2Gate ValveSafety InstructionsThese safety instructions are intended to prevent hazardous situations and/or equipment damage. These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.” They are all importantnotes for safety and must be followed in addition to International Standards (ISO/IEC)∗1), and other safety regulations.*1) ISO 4414: Pneumatic fluid power --General rules relating to systemsISO 4413: Hydraulic fluid power --General rules relating to systemsIEC 60204-1: Safety of machinery--Electrical equipment of machines (Part 1: General requirements)ISO 10218-1992: Manipulating industrial robots-SafetyCaution Caution indicates a hazard with a low level of risk which, if not avoided, could result in minor ormoderate injury.Warning Warning indicates a hazard with a medium level of risk which, if not avoided, could result in death orserious injury.Danger Danger indicates a hazard with a high level of risk which, if not avoided, will result in death or seriousinjury.Warning1.The compatibility of the product is the responsibility of the person who designs the equipment or decides itsspecifications.Since the product specified here is used under various operating conditions,its compatibility with specific equipment must be decided by the person who designs the equipment or decides its specifications based on necessary analysis and test results.The expected performance and safety assurance of the equipment will be the responsibility of the person who has determinedits compatibility with the product.This person should also continuously review all specifications of the product referring to itslatest catalog information,with a view to giving due consideration to any possibility of equipment failure when configuring the equipment.2.Only personnel with appropriate training should operate machinery and equipment.The product specified here may become unsafe if handled incorrectly.The assembly,operation and maintenance of machinesor equipment including our products must be performed by an operator who is appropriately trained and experienced.3.Do not service or attempt to remove product and machinery/equipment until safety is confirmed.1.The inspection and maintenance of machinery/equipment should only be performed after measures to prevent falling or runaway of the driven objects have been confirmed.2.When the product is to be removed,confirm that the safety measures as mentioned above are implemented and the powerfrom any appropriate source is cut,and read and understand the specific product precautions of all relevant products carefully.3.Before machinery/equipment is restarted,take measures to prevent unexpected operation and malfunction.4.Contact SMC beforehand and take special consideration of safety measures if the product is to beused in any of the following conditions.1.Conditions and environments outside of the given specifications,or use outdoors or in a place exposed to direct sunlight.2.Installation on equipment in conjunction with atomic energy,railways,air navigation,space,shipping,vehicles,military, medical treatment,combustion and recreation,or equipment in contact with food and beverages,emergency stop circuits, clutch and brake circuits in press applications,safety equipment or other applications unsuitable for the standard specifications described in the product catalog.3.An application which could have negative effects on people,property,or animals requiring special safety analysis.e in an interlock circuit,which requires the provision of double interlock for possible failure by using a mechanical protective function,and periodical checks to confirm proper operation.341.The product is provided for use in manufacturing industries.The product herein described is basically provided for peaceful use in manufacturing industries.If considering using the product in other industries, consult SMC beforehand and exchange specifications ora contract if necessary. If anything is unclear, contact your nearest sales branch.Safety Instructions1.The warranty period of the product is 1year in service or 1.5years after the product is delivered.Also,may have specified durability,running distance or replacement parts.Please consult your nearest sales product branch.2.For any failure or damage reported within the warranty period which is clearly our responsibility,a replacement product or necessary parts will be provided.This limited warranty applies only to our product independently,and not to any other damage incurred due to the failure of the product.3.Prior to using SMC products,please read and understand the warranty terms and disclaimers noted in the specified catalog for the particular products.1.The use of SMC products with production equipment for the manufacture of weapons of mass destruction (WMD)or any other weapon is strictly prohibited.2. The exports of SMC products or technology from one country to another are governed by the relevant security laws and regulation of the countries involved in the transaction. Prior to the shipment of a SMCproduct to another country, assure that all local rules governing that export are known and followed.CautionLimited warranty and Disclaimer/Compliance RequirementsThe product used is subject to the following “Limited warranty and Disclaimer”and “Compliance Requirements”.Read and accept them before using the product.Limited warranty and DisclaimerCompliance RequirementsSafety Instructions Be sure to read the “Handling precautions for SMC Products”(M-E03-3)and “Operation Manual”before use.1. SpecificationsOpening size50mm×336mmOperating pressure Atmospheric pressure～10-6Pa Pilot pressure0.45～0.6 MPaInternal leakage*1O-Ring Material : FKM 6.5×10-10 Pa m3/sec O-Ring Material : KalrezⓇ 6.5×10-9Pa m3/secInternal leakage at Back pressure*1〈Back pressure0.1MPa(abs) or less〉O-Ring Material : FKM 6.5×10-8Pa m3/sec O-Ring Material : KalrezⓇ 6.5×10-7Pa m3/secExternal Leakage*1 6.5×10-11Pa m3/secOperating temperature Gate Part：5～120℃(During bake-out：150℃) Actuator part：5～90℃（Except Auto switch）Fluid Inert gasOperating Time 1 sec or less *2Auto Switch D-A93 （Operating temperature：20～60℃）Main material of vacuum part Seal material FKMMechanicalpartsBellows :AM350Gate :A6063Body :A5052Bonnet :A6061Gate Bolt :SUS316Others :SUS304Piping size Rc 1/8Exhaust direction FreeEnd-Lock (End lock type)With lock mechanism in opened or FULL seal postion Cylinder Volume.2 ℓMounting Direction VerticalMass * Insert type : 10 kg* Cassette type (Standard) : 14.5 kg * Cassette type (Half MESC) :13.5 kg*1: At normal temperature. Gas permeation is not included.(SMC's inspection conditions)*2: The period of time from gate open state to clamp after signals comes to solenoidvalve and from gate clam＜Conditions＞・Pressure: 0.5MPa・Pipe length:1m・Gate Direction: Vertical Upper・Without Speed Controller・Solenoid Valve:SY5120-01・Tube:TU060456 Number of axes and seal type:One axis bellowsParallel seal type slit valve2. How to orderSymbol Auto Switch ConnectorNil --A D-A93(2pcs)Lead wire: 0.5mC Multiple connector (AMP)•C01630D00610012 made by AMP is recommended for the connector (femaletype).F D-sub connector•CDE-9SF05 made by HIROSE ELECTRIC CO., LTDis recommended for the connector (female type).XGTP 312-50336-1CN Applicable water size:For 300mm waferValve type1.Insert type (Without body)2.Cassette type (Standard)3.Cassette type (Half MESCOpening window size:50 X 336 mmGate seal material1.FKM2.Kalrez ® 4790Kalrez ®is a registered trademark ofDuPont Performance elastomersEnd lockNil: OPEN / CLOSEN : NoneAuto switch and theconnector (See Table 1)3-1 OperationFigures 1 and 2B shows the valve in the CLOSED position•As air pressure is applied to the ports, the gate will move towards the desired position. (OPEN / CLOSE)•Figure 2A shows the valve in the OPEN position that would permit the transfer of product within the vacuum environment.•Figure 2B shows the valve moving upward prior to sealing the gate seal.•Figure 2C shows the valve in the CLOSED position that would permit processing the product by customer within vacuum environment.3-2 ConstructionFigures1illustrates the basic components that define the Gate valve.• 1. Gate mounts to the shaft and moves up and down to seal the Gate valve• 2. Bellows maintains vacuum in the Gate valve assembly while allowing for vertical motion of the shaft.• 3. O-ring gate is critical seal that contains process gas while sustain specific leak rate for vacuum.• 4. O-ring Body is critical seal that joins the Gate valve assembly to the customer system reactor/chamber.• 5. O-ring Bonnet assembly is critical seal that joins two Gate valve components while maintaining vacuum.• 6. Fixing bolts are specially deigned bolts that mount the gate to the shaft .3-3 Gate OPEN to CLOSE (Fig2A⇒Fig2C)•Pressurizing to “CLOSE" side port (exhausting “OPEN" side)•Verify specified Mpa is maintained with operating range•System design and peripheral components can impact precision Gate valve performance by altering target operating pressures.•Fully completing OPEN / CLOSE cycles are imperative to prevent damaging the valve components such as the End Lock mechanism.•Verify specified torques for proper assembly•Verify fittings and tubing for kinks, twisting, damage, and long runs that might impact performance•Handle precision Gate valve with care to prevent damage and scratches to prevent vacuum leaks•Do not remove gate valve from reactor/chamber when the valve is in the closed position.3-4 Gate CLOSE to OPEN (Fig.2C⇒Fig.2A)•Pressurizing to "OPEN" port side (exhausting "CLOSE" side)•Verify specified Mpa is maintained with operating range•System design and peripheral components can impact precision Gate valve performance by altering target operating pressures.•Fully completing OPEN / CLOSE cycles are imperative to prevent damaging the valve components such as the End Lock mechanism.•Verify specified torques for proper assembly•Verify fittings and tubing for kinks, twisting, damage, and long runs that might impact performance•Handle precision Gate valve with care to prevent damage and scratches to prevent vacuum leaks•Do not remove gate valve from reactor/chamber when the valve is in the closed position.3-5 End lock (in case with End Lock)When the air pressure is suddenly lost during opening and closing of Gate valve, The End lock mechanism will engage.The valve maintains the location before the air is lost.894．PrecautionsCaution4-1. Air pipingHold the speed controller on the piping port (Rc1/8) lightly and connect the tube. Do not to apply excessive external force to the fittings. The end lock may not operate correctly without using the two position five port valve. 4-2．InstallationTighten the bolts gradually and diagonally (star pattern when possible) by constant torque to avoid uneven force to the bolts. When installing the bonnet assembly and gate, refer to the maintenance procedure for tightening of the bolts.•Utilize OPEN condition when Bonnet assembly is installed.•Avoid scratching critical sealing surfaces during maintenance & installation•The compression of the O-rings on the user's application should target 0.7 to 0.9mm.Otherwise, improper compression could result in potential leak path.•Always use proper torque for fasteners, fittings, bolts, etc.. Otherwise bolt and valve body thread engagement could create valve damage.4-3．DisinstallationOPEN valve prior to removal of Bonnet assembly during maintenance procedures. If Bonnet assembly is removed at CLOSE condition then Body's threads and critical sealing surfaces could be damaged.4-4．End lock releaseWhen unlocking the Gate valve that has previously lost air pressure during emergency shut off. First, apply pressure to the air port that was last energized. The cycle should be finished that was in motion. This completion of cycle that was not completed during pressure loss is critical to release end lock and switch the solenoid valve.Example 1: The gate of the valve assembly is closed before shipment, so apply pressure to the closed position first. Example 2: If the gate is opened, apply pressure to the "open " side of air piping, and switch the valve after releasing the end lock.The type of Gate valve design can vary gate configuration during shipment. This is done to protect precision vacuum components throughout transport.1. Insert type: Gate is OPEN so please supply the pressure to OPEN port first.2. With Body type: Gate is CLOSED so supply the pressure toCLOSE port first.Ignoring these concerns could lock the gate valve assembly, and potentially damaging components.10 4-5．Speed controlBe sure to control speed to open and close the gage in meter out condition. Otherwise, the Gate valve life will be adversely affected. Improper use of speed controls can damage end-lock mechanism as well as shorten life time of valve.4-6．Exhaust pipingAvoid system designs that combine additional solenoid valves to the Gate valve. The added exhaust pressures from other solenoid valves may cause improper operation of the end lock mechanism.4-7．Operation of valve1) Please confirm in regulated differential pressure of 4kPa and during the opening and shutting operation of the valve. OPEN / CLOSE2) Incase the Body (Chamber) and Gate are heated and cooling gradually from High Temperature to Room temperature then please make OPEN condition. If it is cooling at CLOSE condition then Gate O -ring could become stuck and when operated toOPENcondition. This condition will pull out the O-ring Warning 3)Maintain and monitor specified operating pressure range of Gate valve. System design can change over time providing Over/Under pressurization. The internal components could be damaged by improper pressure.4) Do not put your hands near moving components or into the opening of the body without confirming safety. The closing forces will cause injury and bodily harm if the valve is operated.5) Do not remove the Cover on the actuating part. The cover shields internal components while the Gate valve is operating prevent injury.6) Remove the pneumatic tubing from valve operation and confirm cylinder has no pressure prior to maintenance. Be aware of your system design and latent energy stored to prevent accidental actuation. These steps will ensure that stored energy is removed. Additionally, pneumatic lines disconnected could create a potential hazard if energized.Caution4-8．Replacement of O-ringUse the parts shown on “4. Replacement parts list” when replacing bonnet assembly, Gate and O -rings for a gate. Give sufficient cleaning to O-ring groove and mount O-ring in gland avoiding twisting. Use a plastic specific tool so as not to damage sealing surface of the O-ring groove. Refer to the maintenance manual for details. After replacement, confirm vacuum by leak inspection.Warning4-9．Return of ProductVacuum products must be decontaminated prior to returning to SMC. The substances used in process application must be identified with certified removal of contaminants. The return authorization number will only be provided after the decontamination form has passed evaluation. The decontamination form is submitted by Product Return Request Sheet or Detoxification/Decontamination certificate to SMC and await return contact from SMC before returning the item to SMC. Please refer to International Chemical Safety Cards (ICSC) for a list of the harmful substances. If you have any questions, please contact your SMC sales representative.7.TroubleshootingStatus Possible Cause CountermeasureGate Internal Leakage Operating pressure is too low Increase pressure to 0.45MPa or more Foreign materials on Seal surface Cleaning the Seal SurfaceScratches on the seal surface of Gate Replace GateScratches on the seal surface of Body Replace BodyDeterioration of O-ring by process exposureReplace with new O-ring whose materialcompatible with process environment Twist of O-ring Re-install O-ringCome off of O-ring Re-install O-ringPeeling off of O-ring Replace O-ringConcave/Convex of end of O-ringPlace the convex part into the groove tomake O-ring height the same Deterioration of Bonnet assembly Replace Bonnet assemblyExternal Leakage Damage of Bellow assembly Replace Bellows assemblyDeterioration of O-ring by processingReplace with new O-ring whose materialcompatible with process environment Scratches on the seal surface Polish of seal surfaceGate is not CLOSING End lock operation lock Please refer to 4-4Deterioration of Bonnet assembly Increase pressure to 0.45MPa or more Deterioration of Bonnet assembly Replace Bonnet assemblyGate is not OPENING End lock operation lock Please refer to 4-4Operating pressure is too low Increase pressure to 0.45MPa or more Deterioration of Bonnet assembly Replace Bonnet assemblyAuto-switch not working Displacement of Auto-switch Adjust the location to detect range Failure of Auto-switch Replace Auto-switchOperating pressure is too low Increase pressure to 0.45MPa or moreBonnet assembly air leakage Loosening of connections Replace Bonnet assemblyWear on piston seal Replace Bonnet assembly12。
检修案例MR有载调压开关的吊芯检查全解.ppt
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MR有载调压开关的吊芯检修
1.3 有载调压开关的基本工作原理 变压器有载调压分接开关是在变压器励磁或负载状态
下进行档位转换操作、调节变压器绕组分接连接位置，从 而改变变压器二次输出电压的装置。有载分接开关由切换 开关和分接选择器组成。对于M型开关：每一个分接变换 工作，开始是分接选择器动作，把所要的变压器调压绕组 分接先选好。切换开关将电流从工作分接转移到预选分接。 在此快速转换过程中，欧姆电阻被接入电路以保证电流转 移不中断。对于V型开关：切换和选择同时进行，其过程 中亦能保证电流不中断。其具体原理此处不作详细介绍。
4年
下次维护间隔
MR有载调压开关的吊芯检修
Hale Waihona Puke 对于操作次数，检修周期的标准如下表（常见的型号）：
分接开关型号 变压器额定电流
分接开关操作次数
不带滤油机 带滤油机
MⅢ350
350A及以下 100000 150000
MⅢ500
350A及以下 100000 150000
MⅢ500
500A及以下 80000
完毕后能够迅速安装复位。我们 规定：应在校正位置时吊出切换 开关芯子。
校正位置 的定义如下：当 档位指钟由逆时钟方向转动中间 档位位置时为校正位置。比如， 对包含9a,9b,9c为中间档的17档 分接开关，当档位从10档升到 9b档时即为校正位置。在校正位 置时打开顶盖会发现如右图三处 特征：
红三角对齐转轴 凸起的一侧
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