宇电AI-759_759P型精密人工智能工业调节器 S073-03P说明书v82

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AI 708智能PID调控仪操作说明

AI 708智能PID调控仪操作说明

AI 708智能PID调控仪操作说明AI系列PID智能调控仪与各类传感器、变送器配合,可实现对温度、压力、液位、流量成分等过程量的测量、变换、显示、通讯和控制。

采用先进的PID智能控制算法,抗超调,具备自整定(AT)功能。

误差小于0.2%F·S,并具备调校、数字滤波功能,可帮助减小传感器、变送器的误差,有效提高系统的测量、控制精度。

适用于电压、电流、热电阻、热电偶、mV、电位器、远传压力表等信号类型。

3点报警输出,可选择12种报警方式,报警灵敏度独立设定。

具备延时报警功能,有效防止干扰等原因造成误报。

高效的网络化通讯接口,实现计算机与仪表间完全的数据传送和控制。

独有的控制权转移功能使计算机可以直接控制仪表的报警输出、控制输出和变送输出。

多种外形尺寸和面板形式可供选择。

良好的软件平台,具备二次开发能力,能够满足特殊的功能需求。

提供测试软件,组态软件和应用软件技术支持。

产品获得权威机构电磁兼容(EMC)检验证书。

1. 面板及按键说明(以B-F规格的仪表为例)名称说明显示窗①第一显示窗•显示测量值•在参数设置状态下,显示参数符号、参数数值②第二显示窗•显示目标设定值或报警设定值•按百分比显示输出值,最高位显示时,表示自动;显示时,表示手动;显示时,表示上位机控制输出③指示灯•OUT:模拟量输出时始终亮,位式输出断开时灭,接通时亮•AT:自整定运行时亮•AL1:第1报警点状态显示•AL2:第2报警点状态显示•AL3:第3报警点状态显示•M:手动输出时亮,控制权转移到计算机后闪烁操操作键④设置键•控制状态下,按住2秒钟以上不松开则进入设置状态•在设置状态下,显示参数符号时,按住2秒以上不松开进入下一组参数或返回测量状态⑤左键•在控制状态下,切换第二显示状态•在设置状态下:①调出原有参数值②移动修改位⑥确认键•在控制状态下,进行手动/自动切换•在设置状态下,存入修改好的参数值操作键⑦增加键•在手动控制输出时,增加控制输出量•在设置状态下,增加参数数值或改变设置类型⑧减小键•在手动控制输出时,减小控制输出量•在设置状态下,减小参数数值或改变设置类型2. 显示状态说明3. 参数设置说明仪表的参数被分为若干组,在第6章“参数一览表”中列出。

三极调节电压调节器说明书

三极调节电压调节器说明书

1.5A Three Terminal Adjustable Voltage RegulatorSchematic DiagramFigure 1 · Block DiagramFeatures▪ Adjustable Output Down to 1.25V ▪ 1% Output Voltage Tolerance ▪ 0.01%/V Line Regulation ▪ 0.3% Load Regulation ▪ Min. 1.5A Output Current▪ Typical 80dB Ripple Rejection ▪ Available in Hermetic TO-257High Reliability Features – SG117A/SG117▪ Available to MIL-STD-883, ¶1.2.1▪ MSC-AMS level "S" Processing Available ▪ Available to DSCC– Standard Microcircuit Drawing (SMD) ▪ MIL-M-38510/7703405XA SG117AT-JAN ▪ MIL-M-38510/7703405YA SG117AK-JANDescription The SG117 and SG117A are 3-terminal positive adjustable voltage regulators which offer improved performance over the original 117 design. A major feature of the SG117A is a reference voltage tolerance guaranteed within ± 1%, allowing an overall powersupply tolerance to be better than 3% using inexpensive 1% resistors. Line and load regulationperformance has been improved as well.Moreover, the SG117A reference voltage is guaranteed not to exceed 2% when operating over the full load, lineand power dissipation conditions. The SG117A adjustable regulators offer an improved solution for all positive voltage regulator requirements with loadcurrents up to 1.5A.In addition to replacing many fixed regulators, theSG117/A can be used in a variety of other applicationsdue to its ‘floating’ design as long as the input -to-output differential maximum is not exceeded, such as acurrent source. A higher voltage version is available the SG117AHV and SG117HV which offers input voltage up to 60V.1.5A 3-Terminal Adjustable Voltage RegulatorConnection Diagrams and Ordering InformationConnection Diagrams and Ordering InformationConnection Diagrams and Ordering Information1.5A 3-Terminal Adjustable Voltage RegulatorAbsolute Maximum RatingsThermal DataRecommended Operating ConditionsElectrical CharacteristicsElectrical CharacteristicsUnless otherwise specified, these characteristics apply over the full operating ambient temperature for the SG117A / SG117 with -55°C < T A < 125°C, V IN– V OUT = 5.0V and for I OUT = 500mA (K, G, and IG) and I OUT = 100mA (T, and L packages). Although power dissipation is internally limited, these specifications are applicable for power dissipations of 2W for the T, and L packages, and 20W for the K, G, and IG packages.I MAX is 1.5A for the K, G, and IG packages and 500mA for the T, and L packages. Low duty cycle pulsetesting techniques are used which maintains junction and case temperatures equal to the ambient temperature.1.5A 3-Terminal Adjustable Voltage RegulatorCharacteristic CurvesFigure 2 · Output Voltage Deviation vs. Temperature Figure 3 · Output Current vs. Input / Output DifferentialFigure 4 · Adjust Current vs. Temperature Figure 5 · Input / Output Differential vs. TemperatureFigure 6 · Reference Voltage vs. Temperature Figure 7 · Quiescent Current vs. Input /OutputDifferentialCharacteristic Curves Characteristic CurvesFigure 8 · Ripple Rejection vs. Output VoltageFigure 9 · Ripple Rejection vs. FrequencyFigure 10 · Ripple Rejection vs. Output CurrentFigure 11 · Output Impedance vs. FrequencyFigure 12 · Line Transient Response Figure 13 · Load Transient Response1.5A 3-Terminal Adjustable Voltage RegulatorCharacteristic CurvesFigure 14 · Output Impedance vs. Frequency Figure 15 · Line Transient ResponseFigure 16 · Load Transient ResponseApplication InformationApplication InformationGeneralThe SG117A develops a 1.25V reference voltage between the output (OUT) and the adjust (ADJ) terminals (see Basic Regulator Circuit). By placing a resistor, R 1 between these two terminals, a constant current is caused to flow through R 1 and down through R 2 to set the overall output voltage. Normally this current is the specified minimum load current of 5mA or 10mA. It is important to maintain this minimum output load current requirement otherwise the device may fail to regulate, and the output voltage may rise.2ADJ 12REF OUT R I R R 1V V ∙++=⎪⎪⎭⎫⎝⎛Figure 17 · Basic Regulator CircuitThe I ADJ current does addan error to the output divider ratio, however because I ADJ is very small and constant when compared with the current through R1, it represents a small error and can often be ignored.It is easily seen from the above equation, that even if the resistors were of exact value, the accuracy of the output is limited by the accuracy of V REF . With a guaranteed 1% reference, a 5V power supply design, using ±2% resistors, would have a worse case manufacturing tolerance of ± 4%. If 1% resistors were used, the tolerance would drop to ± 2.5%. A plot of the worst case output voltage tolerance as a function of resistor tolerance is shown below.Figure 18 · Voltage Tolerance vs. Resistor ToleranceBypass CapacitorsInput bypassing using a 0.1 μF ceramic or 1μF solid tantalum is recommended, and especially when any input filter capacitors are more than 5 inches from the device. A 0.1µF bypass capacitor on the ADJ pin is required if the load current varie s by more than 1A/µsec. Improved ripple rejection (80dB) can be accomplished by adding a 10μFcapacitor from the ADJ pin to ground.Figure 19 · Improving Ripple Rejection1.5A 3-Terminal Adjustable Voltage RegulatorWhile the SG117 is stable with no output capacitor, for improved AC transient response and to prevent the possibility of oscillation due to an unknown reactive load, a 1μF capacitor is also recommended at the output. Because of their low impedance at high frequencies, the best type of capacitor to use is solid tantalum; ceramic capacitors may also be used. When bypass capacitors are used, it may be necessary to provide external protection diodes to prevent this external large capacitance from discharging through internal low current paths, which may damage the device. Although the duration of any surge current is short, there may be sufficient energy to damage the regulator. This is particularly true of the large capacitance on the ADJ pin when output voltages are higher than 25V. Such a capacitor could discharge into the ADJ pin when either the input or output is shorted. See figure below.Figure 20 · Use of Protection DiodesLoad RegulationBecause the SG117A is a three-terminal device, it is not possible to provide true remote load sensing. Load regulation will be limited by the resistance of the wire connecting the regulator to the load. From the data sheet specification, regulation is measured at the bottom of the package. Negative side sensing is a true Kelvin connection, with the bottom of the output divider returned to the negative side of the load. Although it may not be immediately obvious, best load regulation is obtained when the top of the divider is connected directly to the case, not to the load. This is illustrated in (Connections for Best Load Regulation). If R1 were connected to the load, the effective resistance between the regulator and the load would be:ResistanceLine Parasitic R ,R R R R P 112P =+∙⎪⎪⎭⎫⎝⎛Connected as shown, R P is not multiplied by the divider ratio. R P is about 0.004Ω per foot using 16 gauge wire. This translates to 4mV/ft. at 1A load current, so it is important to keep the positive lead between regulator and load as short as possible.Figure 21 · Connections for Best Load RegulationOUTApplication InformationCurrent LimitAs outlined in the Electrical Characteristics the current limit will activate whenever the output current exceeds the specified levels. It is also important to bear in mind that the regulator includes a foldback-current characteristic that limits the current at higher V IN to V OUT differential voltages. This power limiting characteristic will prevent the regulator from providing full output current depending on the V IN to V= differential. Also if during a short circuit situation the regulator was presented with a voltage that exceeds the Absolute Maximum Rating of 40V (e.g. V IN > 40V, V OUT = 0V) the device may fail, or be permanently damaged.Typical ApplicationsFigure 22 · 1.2V – 25V Adjustable RegulatorFigure 23 · 5V Regulator with Shut DownFigure 24 ·Figure 25 ·Programmable Current LimiterI OUT = V REF /R1** 0.8Ω ≤ R 1 ≤ 120Ω1.5A 3-Terminal Adjustable Voltage RegulatorPACKAGE OUTLINE DIMENSIONSControlling dimensions are in inches, metric equivalents are shown for general information.Figure 26 · T 3-Pin Metal Can TO-39 Package DimensionsNote:1. All exposed metalized area shall be gold plated 60 micro-inch minimum thickness over nickel plated unless otherwise specified in purchase order.Figure 27 · L 20-Pin Ceramic Leadless Chip Carrier (LCC) Package DimensionsPACKAGE OUTLINE DIMENSIONSPACKAGE OUTLINE DIMENSIONS*Excludes Weld Fillet Around Lid.Figure 28 · G/IG 3-Pin Hermetic TO-257 Package DimensionsFigure 29 · K 3-Pin TO-3 Package DimensionsMicrosemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor and system solutions for communications, defense & security, aerospace and industrial markets. Products include high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and synchronization devices and precise time solutions, setting the world’s standard for time; voice processing devices; RF solutions; discrete components; security technologies and scalable anti-tamper products; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, Calif., and has approximately 3,400 employees globally. Learn more at .Microsemi makes no warranty, representation, or guarantee regarding the information contained herein or the suitability of its products and services for any particular purpose, nor does Microsemi assume any liability whatsoever arising out of the application or use of any product or circuit. The products sold hereunder and any other products sold by Microsemi have been subject to limited testing and should not be used in conjunction with mission-critical equipment or applications. Any performance specifications are believed to be reliable but are not verified, and Buyer must conduct and complete all performance and other testing of the products, alone and together with, or installed in, any end-products. Buyer shall not re ly on any data and performance specifications or parameters provided by Microsemi. It is the Buyer’s responsibility to independently determine suitability of any products and to test and verify the same. The information provided by Microsemi hereunder is p rovided “as is, where is” and with all faults, and the entire risk associated with such information is entirely with the Buyer. Microsemi does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other IP rights, whether with regard to such information itself or anything described by such information. Information provided in this document is proprietary to Microsemi, and Microsemi reserves the right to make any changes to the information in this document or to any products and services at any time without notice.© 2015 Microsemi Corporation. All rights reserved. Microsemi and the Microsemi logo are trademarks of Microsemi Corporation. All other trademarks and service marks are the property of their respective owners.Microsemi Corporate Headquarters One Enterprise, Aliso Viejo, CA 92656 USAWithin the USA : +1 (800) 713-4113 Outside the USA : +1 (949) 380-6100 Sales : +1 (949) 380-6136 Fax : +1 (949) 215-4996E-mail : ***************************。

智能调节器使用说明书

智能调节器使用说明书

SIC-03型━━━━━━━━━━━━━━━━━组合型智能调节器智能调节器安装使用说明书━━━━━━━━━━━━━━━━━大连工业大学━━━━━━━━━━━━━━━━━大连工业大学一、概述一、概述本型号调节器是基于MCU(微型工业处理器)的新一代调节器,硬件设计上采用最新的微处理器技术及IC技术。

软件设计上采用成熟、可靠的控制算法,全部程序采用汇编语言实现,效率高、速度快。

显示功能完善:测量值、设定值、两参数在前面板同时以光柱和数码管两种形式显示,光柱用于以百分数形式显示两参数,数码管用于以工程量形式显示两参数;输出值以数字形式显示,阀位值以光柱形式显示,所有操作过程中关心的参数:测量值、设定值、输出值、阀位值、自动/手动控制方式、内/外给定方式、正/反作用方式在调节器的前面板上同时显示,不必按键选择显示,方便对控制过程的监控。

操作简单:仅通过前面板上四个按键,可实现对设定参数、实时参数的监测,其中,需要经常整定的PID参数、手动/自动切换操作,专门设计了简洁的操作方法,方便操作。

支持RS-485总线,有专门的通讯协议,方便构成现场总线测控系统。

二、主要功能与技术指标主要功能:1.自动/手动双向无平衡无扰动。

2.积分、微分作用可切除。

3.重要参数:被控变量给定值与测量值以数字形式与光柱形式同时显示;被控变量的工程量与满量程百分数同时显示;被控变量给定值、测量值、调节器输出值、阀位值、自动/手动状态、内/外给定形式、正/反作用方式同时在仪器的前面板上显示,不用任何操作,可完全了解调节器的工作情况。

4.支持RS-485通讯技术,方便构成局域控制网络。

5.当被控变量测量信号出现故障(小于2mA)时,阀位可保持在原有位置或自动切换到预置位置上。

主要技术指标:⒈输入信号⑴来自现场变送器的 4~20mA 电流信号或配电器输出的1~5V电压信号,两种信号可通过按键选择。

⑵外给定信号:4~20mA 电流信号。

⑶阀位信号:4~20mA 电流信号。

宇电AI-733_733P型精密人工智能温度控制器 S036-06说明书V8.3版本

宇电AI-733_733P型精密人工智能温度控制器 S036-06说明书V8.3版本
2 显示及操作 ................................................................................................................................... 14 2.1 面板说明 ................................................................................................................................ 14 2.2 参数设置流程.......................................................................................................................... 15 2.3 程序设置流程.......................................................................................................................... 16 2.4 操作方法 ................................................................................................................................ 17 2.4.1 设置参数 ........................................................................................................................ 17

调节型说明书(兰陵调节型)

调节型说明书(兰陵调节型)
行程控制机构的功能是作为电气极限位置的限位。力矩控制机构是为了保护执行机构和阀门而设计的
3
一种保护机构。开度机构用于指示阀门开、关方向和位置。 5.MCU 数字控制模块组成及功能概述
MCU 数字控制模块由 CPU 芯片,A/D 转换电路、复位电路、标度转换电路、电动手操电路、死区及运 动禁止时间调整电路组成。其系统方框图如图 3:
时 间 调 整 电 路
死 区 及 运 动 禁 止
复位电路 CPU 芯片 电动手操电路
A/D










图 3 MCU 数字控制模块方框图
来自控制系统
4~20mA
来自阀位信号
CPU 芯片是 MCU 数字控制模块的核心控制部分,接收其它各电路的信号,进行运算处理,协调数字控制
模块的各部分工作。
标度转换电路将自动控制系统及阀位变送器传送来的直流 4~20mA 信号转换成 1~5V 电压信号。
ZB1TD28
YDTF80M2-4Ⅰ YDTF80L-4Ⅰ
0.25 0.37
0.62 1.22
50 80
35
25
55
40
ZB2TD1300 ZC4TD4950 ZC5TD112600
YDTF100M1-4Ⅱ YDTF100L1-4Ⅱ YDTF100L2-4Ⅱ YDTF2100L2-4Ⅳ YDTF2132M1-4Ⅳ YDTF2132M2-4Ⅳ YDTF2132L1-4Ⅴ YDTF2132L2-4Ⅴ
调节型电动执行机构
使用说明书
中华人民共和国常州电站辅机总厂有限公司
一、概述
调节型电动执行机构是 ZB 型、ZC 型、QB 型电动装置的派生产品。该产品有直行程、角行程和多 转式三大系列。适用于工业过程的闭环控制系统,能可靠地对闸阀、截止阀、节流阀、蝶阀以及各种调节 阀实行精确控制,可以满足Ⅲ型Ⅱ型仪表和 S 型辅助控制单元的配套使用要求。主要应用于电站、冶金、 化工、污水处理、通风、空气调节等领域。本产品按结构型式分有分体式和整体式,前者将 数字式伺服放 大器和执行机构分别安装,后者将数字式伺服放大器直接装入执行机构内部;按工作环境分有隔爆型和普 通型两种。本产品性能指标达到 JB/T8219—1999《工业过程测量和控制系统用电动执行机构》要求,对于 隔爆型其防爆性能指标符合 GB3836.1—2000《爆炸性气体环境用电气设备通用要求》、GB3836.2—2000《爆 炸性气体环境用电器设备隔爆型“d”》要求。

宇电AI-519型人工智能温度控制器 S081-04中文说明书

宇电AI-519型人工智能温度控制器 S081-04中文说明书

AI-519型人工智能温度控制器使用说明书(V7.5)S081-04目 录1 概述 (1)1.1 主要特点 (1)1.2 型号定义 (2)1.3 技术规格 (7)1.4 接线方法 (9)2 显示及操作 (15)2.1 面板说明 (15)2.2 D7/E7导轨表面板说明 (16)2.3 参数设置流程 (16)2.4 操作方法 (18)3 参数功能 (20)3.1参数锁与现场参数 (20)3.2完整参数表 (21)1 概述1.1 主要特点●输入可自由选择热电偶、热电阻、电压及电流,内含非线性校正表格,无需校正,测量精确稳定。

●采用先进的AI人工智能PID调节算法,无超调,具备自整定(AT)功能。

●具备手动/自动无扰动切换功能及上电软启动功能。

●采用宇电公司新一代0.2%高精度电流输出模块X3/X5,大大提高了变送及调节输出精度。

●采用先进的模块化结构,提供丰富的输出规格,能广泛满足各种应用场合的需要,交货迅速且维护方便。

●人性化设计的操作方法,易学易用;并允许编辑现场参数及自设定密码,“定制”自己的仪表。

●全球通用的100~240VAC输入范围开关电源或24VDC电源供电,多种面板外型尺寸,具备50Hz/60Hz电源频率及℃/℉单位选择功能。

●“发烧”级硬件设计,大量采用钽电容或陶瓷电容替代电解电容,具备比同级产品更低的电源消耗、更高的可靠性、稳定性及更宽广的温度使用范围;其电源及I/O端子均通过4KV/5KHz的群脉冲抗干扰实验测试。

●通过ISO9001质量认证和CE认证,在质量、抗干扰能力及安全标准方面达到国际水准。

注意事项●仪表在使用前应根据其输入、输出规格及功能要求来正确设置参数。

只有配置好参数的仪表才能投入使用。

1.2 型号定义AI-519仪表硬件采用了先进的模块化设计,具备5个功能模块插座:辅助输入、主输出、报警、辅助输出及通讯。

模块可以与仪表一起购买也可以分别购买,自由组合。

仪表的输入方式可自由设置为常用各种热电偶、热电阻和线性电压(电流)。

宇电AI-708智能调节器的设置与接线

宇电AI-708智能调节器的设置与接线

宇电AI-708智能调节器的设置与接线一、型号AI-501单路显示报警AI-708智能调节器二、面板与报警面板显示orAL为输入超量程报警OP1、OP2、AL1、AL2、AU1、AU2指示灯分别对应模块输出动做OUPT ALM AUXLoc 进入高级菜单密码 808三、使用模式(V7.0版仪表设置方法)1、用SV值做报警值的模式(主输出OUPT安装L4)CtrL=0 采用位式调节OPt个位=0 OUTP上安装继电器开关输出CFCF=0 PV为低报CF=1 PV为高报2、PID调节(主输出OUPT安装X5)CtrL=3或4OPt个位=4 OUTP上安装4~20mA线性电流输出3、4-20mA输出PV值(主输出OUPT安装X5)CtrL=0 OPt个位=4四、仪表选型L2 继电器常开+常闭触点开关输出模块(模块容量:30VDC/1A,250VAC/1A,适合报警用)L4 大容量继电器(进口品牌8A/250VAC)常开触点开关输出模块(模块容量:250VAC/2A)L5 双路继电器(松下NAIS 5A/250VAC)常开触点开关输出模块(容量:30VDC/2A,250VAC/2A)X3 光电隔离的可编程线性电流输出模块。

X5 自带隔离电源的光电隔离型可编程线性电流输出模块。

V24/V12/V10 隔离的24V/12V/10V 直流电压输出,可供外部变送器或其它电路使用,最大电流50mA 。

I4 模拟量4~20mA/0~20mA 输入接口,含24VDC/25mA 电源输出供二线制变送器使用。

五、接线1、主输入a 、4-20mA 输入在17+ 18-上并联250欧电阻,转化成1-5V 电压b 、接热电阻20短接19 19接+(红色) 18接-(白色) 20接+(红色) 19接+(红色) 18接-(白色) 2、辅助输入MIO I4 4-20mA 输入16为24V+ 14为测量+ 15为测量- 变送器接 16+ 14- 有源4-20mA 接 14+ 15- 3、主输出OUPT a 、L4常开继电器 op1 5为+ 7为- b 、X5 4-20mA 输出 13+ 11- (有源) 4、报警ALML2常开+常闭触点 AL1报警常开 5为+ 7为负 AL1报警常闭 6为+ 7为负5、其他17+ 18- 4-20mAa、报警ALM选了L5就拥有了2通道,即AL1、AL2;AUX选了L5就也拥有了2通道,即AU1、AU2。

智能控制器使用手册

智能控制器使用手册

一概述智能控制器是框架式空气断路器的核心部件,适用于50~60Hz电网,主要用作配电、馈电或发电保护,使线路和电源设备免受过载、短路、接地/漏电、电流不平衡、过压、欠压、电压不平衡、过频、欠频、逆功率等故障的危害;通过负载监控,需量保护,区域连锁等功能实现电网的合理运行.同时也用作电网节点的电流、电压、功率、频率、电能、需量、谐波等电网参量的测量;故障、报警、操作、电流历史最大值、开关触头磨损情况等运行维护参数的记录;当电力网络进行通讯组网时,智能控制器可用为电力自动化网络的远程终端实现遥测,遥信,遥控,遥调等,智能控制器支持多种协议以适用不同的组网要求。

二基本功能对于M型无任何可选功能(加*的项目)时其功能配置为基本功能,如表1所示:表1 基本功能配置2。

1.3 通讯功能通讯功能为可选项,对于M型没有通讯功能,对于H型通讯协议可根据需要选择为Modbus,Profibus-DP,Device net。

2。

1.4增选功能选择增选功能为可选项,M型,H型都可以选择增选功能配置,不同增选功能代号与增选功能内容如表2所示.表2 增选功能配置表2。

1。

5 区域连锁及信号单元的选择“区域连锁及信号单元”为可选项,M型、H型都可以选择信号单元的功能配置,当信号单元选择为S2,S3时,控制器具备区域连锁功能.2.2 技术性能2。

2.1 适用环境工作温度:-10℃~+70℃(24h•内平均值不超过+35℃)储存温度:-25℃~+85℃安装地点最湿月的月平均最大相对湿度不超过90%,同时该月的月平均最低温度不超过+25℃,允许由于温度变化产生在产品表面的凝露.污染等级:3级。

(在和断路器装配在一起的情况下)安装类别:Ⅲ。

(在和断路器装配在一起的情况下)2.2.2工作电源由辅助电源和电源互感器同时供电,保证负载很小和短路情况下控制都可以可靠工作。

控制器的供电方式有下面3种方式:a。

电源CT供电额定电流大于等于400A时,一次电流单相不低于0.4In,三相不低于0。

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