常用继电保护接线方法有哪些?它们特点是什么

2025-03-11 05:27:58
推荐回答(2个)
回答(1):

继电保护大致分为:电流保护、电压保护、开入和开出,电流接线一般分为,两相或者三相电流接入,这个根据有两组还是三组电流互感器来选择接线,电压接线大致分以下情况:电压互感器的接线形式,VV接线,YY接线和YY开口三角,这几种接线形式继电保护都支持,然后在继电保护装置里设置一下电压接线形式就行了,开入是采集开关量状态的,开出是跳闸或者发信号用的。

回答(2):

龙电电气

l 首先从光盘中将“继保”测试软件复制到电脑中,拖“继保”图标至桌面,建立快捷方式;l 将专门配置的通讯线(3芯)将笔记本电脑或台式电脑的串口COM1和测试仪后面板上的通信口相连接。有些笔记本电脑没有串口,需先将USB口转换成串口COM1,再通过通信线连接至测试仪通信口;l 闭装置本机上的所有软件功能试验模块,直接在外接的电脑上进行操作,测试仪将完全由外接的电脑控制;l 外接电脑上的操作功能,除了界面上的软件版本可能不同外,其功能与单机软件完全相同。

1.标准的4相电压3相电流输出  具有4相电压3相电流输出,可方便地进行各种组合输出进行各种类型保护试验。每相电压可输出120V,电流三并可输出120A,第4相电压Ux为多功能电压项,可设为4种3U0或检同期电压,或任意某一电压值的情况输出。

2.单机操作方便  单机由方便灵活的旋转鼠标通过大屏幕液晶显示屏进行操作,全部中文显示。可完成现场大多数试验检定工作,可对各种继电器及微机保护进行检定,并可模拟各种复杂的瞬时性、永久性、转换性故障进行整组试验。开机即可使用,操作方便快捷。

3.双操作方式,联接电脑运行  通过Windows平台上的全套中文操作软件,可进行各种大型复杂及自动化程度更高的校验工作,可方便地测试及扫描各种保护定值,可实时存贮测试数据,显示矢量图,绘制故障波形,联机打印报表等。

4.软件功能强大  可完成各种自动化程度高的大型复杂校验工作,如三相差动试验、厂用电快切、备自投试验、线路保护检同期重合闸等,能方便地测试及扫描各种保护定值,进行故障回放,实时存储测试数据,显示矢量图,联机打印报告等。 

5.开关量接点丰富  7路接点输入和2对空接点输出。输入接点为空接点和0~250V电位接点兼容,可智能自动识别。输入、输出接点可根据用户需要扩展。

6.大屏幕LCD显示屏  本机采用320×240点阵大屏幕高分辨率图形液晶显示屏,全部操作过程均在显示屏上设定,操作界面和试验结果均汉化显示,显示直观清晰。

7.自我保护  采用合理设计的散热结构,并具有可靠完善的多种保护措施及电源软启动,和一定的故障自诊断及闭锁功能。

8.具有独立专用直流电源输出  装置设有一路110V 及 220V专用可调直流电源输出。

9.性价比高  属于跨专业联合设计产品,综合了多专业的先进科技成果。兼具大型测试仪的性能,和小型测试仪的价位,具有很高的性能价格比。

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