MFC5208发电厂保安电源自动切换装置说明书V1.00

MFC2000-3A型微机厂用电快速切换装置使用说明书金智科技股份有限公司东大金智电气自动化有限公司二〇〇五年十月V1.0版本说明书不作为设计依据，本公司保留对产品更改的权利，实际以出厂图纸为准。

版权所有，请勿翻印、复印本版本发布时间：2005年10月目录1.引言 (1)2.装置硬件构成 (2)2.1.面板 (2)2.2.背板插件及端子 (4)3.液晶显示及操作说明 (11)3.1.界面的组成 (12)3.2.主要画面及操作方法介绍 (12)4.定值参数设定 (26)4.1.整定定值 (26)4.2.整定控制字 (27)5.运行巡检说明 (28)5.1.光字牌或DCS信号 (28)5.2.面板巡检 (28)6.现场调试投运 (30)6.1.准备工作 (30)6.2.静态调试试验 (30)6.3.空载传动试验 (32)6.4.带负荷实切试验 (33)7.报告整理 (35)图目录图1 MFC2000-3A型快切装置面板布置图 (2)图 2 背板插件及端子图 (5)图3 菜单结构图 (11)图 4典型界面结构 (12)图 5接线显示（默认）画面 (13)图 6状态报告画面 (14)图 7报告显示画面 (15)图 8曲线查看界面 (16)图 9手动切换画面 (18)图 10并联半自动切换第一步画面 (19)图 11并联半自动切换成功后画面 (19)图 12开入调试画面 (21)图 13精度系数调整画面 (21)图 14通讯设置画面 (23)图 15界面设置画面 (24)图 16快捷键设置画面 (24)1.引言MFC2000-3A型微机厂用电快切装置，是我公司在总结1型、2型快切装置的基础上，充分考虑现场用户需要，结合我公司装置的运行经验，开发的新一代高性能厂用电快切装置。

装置采用4U机箱，主CPU模件采用32位单片机加DSP结构。

采用背插式结构，装置内部无扎线，使用总线背板。

装置面板采用320×240点阵彩色液晶显示屏。

目录1.产品概述 (3)2.功能及特点 (4)2.1主要功能 (4)2.2辅助功能 (4)2.3资源及配置 (4)2.4通讯功能 (4)2.5GPS对时功能 (5)2.6装置特点 (5)3.主要技术参数 (5)3.1额定参数 (5)3.2功率消耗 (5)3.3过载能力 (6)3.4测量范围及精度 (6)3.5整定值精度 (6)3.6出口接点容量 (6)3.7电磁兼容性 (6)3.8绝缘耐压 (7)3.9环境条件 (7)3.10故障录波 (7)4.功能与配置 (7)4.1切换功能 (7)4.2辅助功能 (9)4.3保护功能 (10)4.4其它功能 (10)5.切换过程简介 (11)5.1切换流程框图 (11)5.2起动方式 (11)5.3切换方式 (14)5.4实现方式 (15)5.5切换动态图 (15)6.充放电及起动逻辑 (16)6.1母联模式切换逻辑 (16)6.2进线模式切换逻辑 (19)6.3母联保护逻辑 (20)6.4进线母线PT断线逻辑 (21)7.定值及投退参数 (22)7.1切换定值 (22)7.2切换投退 (23)7.3保护定值 (24)7.4保护投退 (24)8.背板端子说明 (25)8.1背板端子分布 (25)8.2模拟量端子含义 (26)8.3开入量端子含义 (27)8.4开出量端子含义 (27)9.外形及安装尺寸 (29)10.装置使用说明 (30)10.1装置面板布置 (30)10.2显示界面说明 (31)10.3菜单使用说明 (32)10.4常见问题及建议 (34)10.5事故分析 (35)附录：快速切换原理 (36)A.1快速切换 (38)A.2同捕切换 (38)A.3残压切换 (38)A.4长延时切换（必须投入） (39)1.产品概述DCM-635系列电源无扰动快速切换装置，适用于石化、煤炭、冶金、建材、热电厂或发电厂保安电源的无扰动切换。

本装置可以在系统供电电源发生故障时，根据系统运行状态，迅速切除故障电源，检测待合闸两侧的电压素质如满足合闸要求时合上备用电源，避免在电源快速切换时造成的电源中断或者设备冲击损坏，保证负荷无扰动不断电连续运行。

0XJ 463 279第 2 页共 61 页旧底图总号底图总号签字日期4.20. 录波 (17)4.21. GPS对时 (17)4.22. 打印功能 (17)4.23. 网络通信 (17)5.保护信息说明 (18)5.1. 定值整定信息 (18)5.2. .WCB-821A定值： (18)5.3. .WCB-821A压板： (19)5.4. .WCB-822A定值： (19)5.5. .WCB-822A压板： (21)5.6. .动作信息及说明 (22)6.装置对外接线说明 (23)6.1. 装置接线端子 (23)6.2. 装置辅助电源 (23)6.3. 交流电流输入 (24)6.4. 交流电压输入 (24)6.5. 开入及开入电源 (24)6.6. 中央信号输出 (24)6.7. 位置触点 (25)6.8. 跳合闸回路 (25)6.9. 通信端子 (25)6.10. 其它端子 (25)7.人机界面说明 (26)7.1. 面板说明 (26)7.2. 显示菜单说明 (27)8.调试及异常处理 (34)8.1. 调试说明 (34)8.2. 程序检查 (34)8.3. 开关量输入检查 (34)8.4. 继电器开出回路检查 (34)8.5. 模拟量输入检查 (35)8.6. 相序检查 (35)8.7. 整组试验 (35)8.8. 异常处理 (35)9.投运说明及注意事项 (35)10.定值整定说明 (36)10.1. I段、II段电流保护 (36)10.2. 高压侧零序过电流保护 (37)10.3. 低压侧零序过流保护（j dzI.，T） (37)10.4. .瓦斯保护 (38)10.5. 高压侧不平衡电流保护(j dzI.,T) (38)11.通讯说明 (39)11.1. WCB-821A/IEC60870-5-103规约 (39)0XJ 463 279第 3 页共 61 页旧底图总号底图总号签字日期11.2. WCB-822A/IEC60870-5-103规约 (42)11.3. Modbus规约 (45)12.贮存及保修 (57)13.供应成套性 (57)14.订货须知 (57)15.附录A：WCB-821A装置背面端子图 (58)16.附录B：WCB-822A装置背面端子图 (59)17.附录C：装置插件功能示意图 (60)18.附录D：装置操作回路原理图 (61)0XJ 463 279第 5 页共 61 页旧底图总号底图总号签字日期b.集成电路全部采用工业品或军品，使得装置有很高的稳定性和可靠性。

1．概述1.1前言本机采用数字式电液调节系统(简称ＤEＨ控制系统),其液压调节系统(简称EＨ系统)控制介质为1４MPa的磷酸脂抗燃液，由一个独立的高压抗燃油供油装置供给整套液压控制系统；而机械保安油为 1.96ＭPa的透平油,由机组所配置的离心式主油泵供给。

每一个进汽阀门均配有一个执行机构以控制其开关:其中高压主汽阀油动机为开关型两位式执行机构;高、中压调节阀油动机为连续型伺服式执行机构，可以接受 40mA的阀位控制信号，控制调节汽阀的开度。

所有油动机的工作介质为高压抗燃油，所有油动机均为单侧进油，即靠油缸液压力开启阀门,靠弹簧力关闭阀门。

油动机的油缸均设有可调缓冲功能。

启机时首先通过挂闸电磁阀20/RS使危急遮断器滑阀复位（挂闸），当危急遮断器滑阀挂闸油压跌落至0.45±０．０5ＭPa时，压力开关63/ＲS触点闭合，发出一个节点信号送给ＤＥH控制系统，DEＨ控制系统即可投入控制；然后由DEH控制系统开启高压主汽阀油动机，高压主汽阀油动机全开后,在其操纵座下壳体上的行程开关触点闭合,发出一个节点信号给ＤＥＨ控制系统，然后高、中压调节阀油动机接受DEH的阀位指令信号开启相对应的蒸汽调节阀门,从而实现机组的启动、升速、并网带电负荷、热负荷等运行。

低压透平油机械保安系统中的危急遮断器滑阀的挂闸操作是通过挂闸组件进行的,通过它运行人员对危急遮断器滑阀进行挂闸操作,使机组具备启动条件。

在抗燃油超速保护系统中布置有两个并联的超速保护电磁阀(20/OPC-1、2)当机组实际运行转速达到或超过1０３%额定转速时或机组甩负荷时，该电磁阀得电打开，迅速关闭各调节汽门，以限制机组转速的进一步飞升。

当机组运行转速降低到额定转速时,OPＣ电磁阀在DEH 系统OPＣ控制器的控制下,失电关闭，ＯPC母管控制油压得以恢复,各调节汽门恢复动作前的开度。

在抗燃油危急遮断保安系统中还布置有四个AST电磁阀,这四个AＳＴ电磁阀的逻辑关系为：两“或”一“与”,既可以防止电磁阀“拒动”又可以防止电磁阀“误动”,它们能接受各种保护停机信号，遮断汽轮机。

F50-ATS50amp 125/250V Automatic Transfer Switch Furrions ATS is used to safely switch automatically between mutiple power sources.N O I R R U F C MO Furrion’s 50amp Automatic Transfer Switch with built in safe switch interlock system is used to automatically switch between two separate 12/2 volt AC power sources, these power sources can be from a Generator, shore power cord or inverter.The function of the Furrion Automatic Transfer Switch is to provide a safe and smooth switch over from an inverter or shore power cord automatically when a generator is interlock between contactors to ensure both contactors cannot be closed in parallel which could otherwise create an over voltage situation on the output line.The electrical contacts in the transfer switch are normally in the open position, once AC voltage is applied to input 1 this will automatically close the contacts in contactor 1 and feeds the output line from the shore power cord or inverter.Once AC power from the Generator is sensed by the transfer switch at Input 2 terminals, this will start a timer and automatically switch over to generator power supply after abefore electrical load is applied.PLEASE READ ALL SAFETY INSTRUCTIONS BEFORE INSTALLING THIS TRANSFER SWITCH!WHEN PROTECTED BY A MOLDED CASE CIRCUIT BREAKER RATED TO 50AMPS OR LESS, THIS LINE/GENERATOR SWITCH IS RATED TO 5000 SYMMETRICAL AMPS.BEFORE PREFORMING MAINTENANCE OR INSTALLATION PLEASE ENSURE TO ISOLATE ALL POWER SOURCES!cannot mistakenly be plugged in.connections before beginning installation or maintenance.Label all electrical parts with a warning tag to show work is in progress beforebeginning work.!!!!!Furrion warranties this transfer switch in the Continental Untied States of America and Canada from defects in materials or workmanship under normal use for 1 year from date of purchase.M INSTALLING YOUR F50-ATS:This is the standard installation used between a shore power cord and generator.distribution panelsWarning:The Furrion F50-ATS is not suitable to be used with Medical life support equipment.R R U F MFor mounting and installing the transfer switch you will require:3 x 1” Cable strain relief’s4 x Self tapping screws with a minimum length of 30mm to mount ATS box 1 x Torque screw driver with square head #21 x Philips screw driver #2MOUNTING YOUR F50-ATS:The Furrion ATS is best mounted indoors or in a location sheltered from outdoor elements. The selected area must be free from the possibility of contaminates and away from water Do not mount the ATS in a engine compartment.The ATS mounting location must be accessible after installation is complete to facilitate future servicing, if possible mount the ATS close to power cord Point of entry or generator output.Typical examples of mounting locations are:Inside seat or bed compartments Above or behind cabinets’To mount the ATS box the 4 screw lugs on the outside of the box can be used to secure, the ATS box also has an alternative 4 screw holes inside the box which can also be used. Punch out 3 of the large diameter cable strain holes on the side of the box in thedirections which the cables will be fed from using a blunt object. Ensure to remove all plastic pieces of the punch out cable strain holes by rotating the ATS box upside down.Hold the transfer switch to the desired position and using 4 self-tapping screws securethe transfer switch box. Ensure the switch is securely mounted so it cannot move or vibrate.Once the ATS is securely mounted then screw in the 3 cable strains into the punch out holess e..N O I R R U F C MOWIRING YOUR F50-ATS:50amp 125/2VAC WiringGround = Bare copper wire or green Neutral = White Live/Hot L1 = Black Live/Hot L2 = Red50amp 12VAC WiringGround = Bare copper wire or green Neutral = White Live/Hot = BlackUsing the quick reference wiring guide on the lid of the ATS box, arrange the wires to be fed into the ATS for connection at the corresponding terminals. Generator in Shore Power in Line/feed outEnsure to feed the wires through the cable strains when they enter to ATS box.Shore power and generator cables should be fed into the ATS from the side marked on the box sticker.The line out wires will enter the ATS from the opposite side.See below diagram for wiring layout.Strip 4” of outer jacket from each of the incoming cables.Strip ½” of jacket from each of the wire conductors.Connect the colored wires to the ATS terminals using the diagram aboveUsing your #2 (Robertson’s) square head torque Screwdriver, tighten the terminal screws to 20in-lb minimum and 25in-lb maximumConnect the chassis grounding 8AWG wire to the grounding terminal block on the inside of the transfer switch box. Use the 3/8” through hole to feed the wire through from the outside of the box directly to the terminal block.Using your #2 Square Head Torque Screwdriver, tighten the grounding block terminal screws to 20in-lb minimum and 25in-lb maximum..N O I R R U F C MO.N O I R R U F C MO PLEASE READ THE FOLLOWING SAFETY INSTRUCTIONS...Follow the below steps to test the function of the F50-ATS.BEFORE TESTING :harmful for the transfer switch to switch over power sources while under load.Shut down all power sources to the RVLabel power sources clearly that testing is in progress.If accessible, remove the lid of the ATS to visually check function.ATS FUNCTION TESTING:1. Plug in the shore power cable and turn on the dockside shore power breaker, as soon as the shore side breaker is turned on you will hear a clunk noise immediately as the shore power contactor engages inside the ATS, power is then supplied to the RV from the ATS line out feed.clunk as the Shore power contactor disconnects (keep the shore power cord connected with no power for further testing).3.Start the Generator in the RV and wait for it to run up to speed, as soon as power is fed to the ATS from the generator the green LED indicator light on the internal ATS PCB will illuminate, the ATS has a 20-30 second time delay before engaging the internal contactor to allow for the generator to warm up. After 20-30 seconds you will hear a clunk noise as the generator contactor engages inside the ATS, power from the generator is now supplied to the RV from the ATS line out feed.4. Shut down the generatorATS SWITCHING TESTING:To test the switching function after both function tests have passed:1. Turn on the shore cord shore side breaker to engage the shower power contactor, power is now being supplied to the RV by the shore power.2.Start the generator and wait for it to warm up, after 20-30 seconds you will hear a clunk as the unit automatically switches over power sources from shore power to generator.line out, the power supply should not be interrupted by doing this.4.Turn on the shore power shore side breaker again which will engage the shore powerwill then disengage the generator contactor and automatically switch to running on shore power feed.sTROUBLESHOOTING YOUR F50-ATS:COMMON PROBLEMS:Transfer switch will not switch over from Shore Power to Generator feed.Possible cause: Bad PCB.How to check: Open the transfer Switch lid so the PCB in visible, do not put your hands or touch anything parts inside the box.Turn on the generator so electric is being fed to the ATS, using a multi meter check for correct voltage at the incoming generator wiring terminals.If the correct power is being fed to the ATS from the Generator the ATS PCB’s the green LED illuminated. After 30 seconds if the contactor does not closeIf the PCB’s green LED is not illuminated while generator voltage is present indicates the PCB has been damaged and will need replaced.ContactyournearestFurrionDealer,*******************************POSSIBLE CAUSES FOR F50-ATS PROBLEMS :INGRESS OF FOREIGN OBJECTS INSIDE ENCLOSURE:Reasons:matter to enter the case.Unsuitable mounting position can cause condensation, moisture or dirt to enter the enclosure,Potential Damage: Contactor does not function properly, burned out coils, Metal particles FLUCTUATING POWER OR POWER SPIKES:Reasons:Lighting strikes,Unbalance load at park, Park Black outsUtility service at park is undersized or located next to an industrial environment.Potential Damage: burnt out contactor coils, PCB damage, pitted contacts, further damage to the RV.LOW VOL TAGE POWER SUPPL Y: Reasons:Bad or corroded electrical connection,Extension cord length too longOperating too much load for power available.Potential Damage: Pitted contacts, burnt out contactor coils, further damage to the RV.GENERATOR FEED :Reasons:Generator requires maintenance,Generator Governors or throttle problems Generator Auto Start/Stop failure.Potential Damage: Burnt out contactor coils, PCB damage, pitted contacts, further damage to the RV..N O I R R U F C MOThere are 2 options for mounting the Furrion F50-ATS:Internal holes: 160 x 130mm (6 / x 5 / )51618Option One: Using the external lugs which are located on the outside of the box. Mounting dimensions for the external lugs are:Outer Lugs : 189 x 220mm (7 / x 8 / )1116716Option Two: Using the 4 x internal holes which are located on theinside of the box. Mounting dimensions for the internal holes are:6188。

继保月度考试-组卷策略(共68题，共100.0分)一、单项选择题(共20题，共20.0分)1. 高频保护采用相-地制高频通道是因为（）。

[1.0分]A 所需的加工设备少，比较经济B 相-地制通道衰耗大C 减少对通信的干扰正确答案：B2. 中性点经消弧线圈接地的小电流接地系统中，消弧线圈采用（）方式。

[1.0分]A 欠补偿B 过补偿C 完全补偿正确答案：B3. 使用绝缘电阻表时，一般采用（）后的读数为准。

[1.0分]A 1 minB 1 00minC 10s正确答案：A4. 线路保护装置检验整组试验在（）%额定直流电压下进行整组试验.应确认保护装置的出口压板处于退出位置。

[1.0分]A 80B 90C 100正确答案：A5. 在斜面上移动物体时，当倾角由15°增到30°时，在不考虑摩擦力的情况下，则拉力（）。

[1.0分]A 减小B 增加1倍以下C 增加1倍以上正确答案：B6. 长春热电厂WBT196E-I分段备用电源自投装置，监控功能：装置具有测量电流、（）、频率等模拟量的遥测功能；[1.0分]A 频率B 电流C 电压正确答案：C7. 脱硫保安段备自投装置，MFC5208备自投装置?安全性。

从主供电源向备用电源切换时，采用串联切换，从（）电源向主供电源恢复时，支持并联切换方式，恢复过程无扰动。

[1.0分]A 工作B 旁路C 备用正确答案：C8. 在微机装置的检验过程中，如必须使用电烙铁，应使用专用电烙铁，并将电絡铁与保护屏(柜)（）。

[1.0分]A 只需电烙铁接地B 在同一点接地C 只需保护屏(柜)接地正确答案：B9. 自饱和电抗器的铁芯完全去磁时铁芯的导磁率最小，工作绕组的电感量最大，因此，直流输出的电流（电压）（）。

[1.0分]A 最大B 最小C 不变正确答案：B10. 励磁（）的目的是维护发电机的安全稳定运行，以避免由于保护继电器的动作而出现的事故停机。

[1.0分]A 调节器B 限制器C 放大器正确答案：B11. 当仪表可动部分偏转到满度点静止时，（）。

塔山电厂厂用电保安电源自动切换装置技术改造发电厂保安电源作为电厂事故情况下的应急电源，对保障机组安全运行和主辅机事故情况下的的安全停运具有极为重要的作用，保障保安电源任何情况下的可靠供电特殊的意义。

改造前的设备状况：塔山发电有限公司#1、#2机组厂用电保安电源采用锅炉保安MCC、汽机保安MCC分段供电模式，保安MCC共有三路电源供电，一二路电源分别来自对应锅炉和汽机PCA段和B段，第三路电源来自柴油发电机。

三路电源采用HD-A02保安电源自动切换系统，该自动切换系统硬件由AB PLC及部分继电器组成，实现对保安MCC三路电源自动切换，电源自动切换系统的设计要求是当正常供电的一路电源发生故障时，自动快速切到备用的电源上去，且确保在任何时候只有一路电源对母线供电。

改造的迫切性：塔山电厂1号、2号机组保安电源自动切换系统采用AB PLC实现，已经运行将近9年，电子产品硬件已经进入老化期，工作已经不稳定，同时无法进行事故追忆，并且部分备件已经停产。

2016年8月26日2号机汽机事故保安MCCⅡ段工作电源QA跳闸，第一备用电源QB联合不成功，自动切换系统联启第二备用电源柴油发电机联合QC成功，自动切换系统检测到QA正常，自动由QC回切QA成功，2016年9月1日发生2号机汽机事故保安MCC段柴油发电机联起，HD-A02保安电源自动切换系统采用PLC控制逻辑，原有设计保安MCC段母线低电压等信号没有接入DCS系统，无法进行事故追忆，给故障排除和分析带来极大的困难，给机组安全稳定运行带来极大的安全隐患。

改造方案：东大金智MFC5208A发电厂保安电源自动快切装置，是专门为交流事故保安电源切换设计的自动装置，具有从主供电源向备用电源切换时，采用串联切换，从备用电源向主供电源恢复时，支持并联切换方式，软件和硬件设置了专门的抗干扰措施，完善的自检、闭锁逻辑，提高了保安电源的自动化水平，同时该装置具有故障记录、故障录波功能、事故切换和手动切换功能、并联和串联切换功能。

研究与交流淡edea^c^ S一起柴油发电机有功功率异常波动的分析及优化陈志勇广东粤电大亚湾综合能源有限公司（516083 )Analysis and Optimization on An Abnormal Fluctuationof Active Power of the Diesel GeneratorCHEN ZhiyongGuangdong Yuedian Daya Bay Integrated Energy Co.,Ltd.摘要：介绍了柴油发电机的工作原理，对一起柴油 发电机带载试验时有功功率异常波动的案例进行了原因 分析，并提出了优化建议。

关键词：柴油发电机带载试验功率波动控制系统中图分类号：TM306文献标识码：ADOl编码：10.3969/j.issn.l006-2807.2020.06.007Abstract:Working principle of the diesel generators is introduced. Causes of the abnormal fluctuation of active power of the diesel generator under the load testing is ana­lyzed and the optimized suggestion is put forward.Keywords:diesel generator load test power fluctu­ation control system某电厂一期为2台600 MW燃煤火力发电机 组，其中作为厂用电应急电源的1号柴油发电机 组型号为FPM1108/A,该机组中的柴油发动机型 号为4012TWG2,交流发电机型号为MX-1030-4 (额定功率为1 〇〇〇kW,额定电流1 808 A)，调 速器型号为680/84,调压器型号为DVR2000E。