ZRCT P200D 防孤岛保护装置
Microcomputer Protection Series Products
ZRCT P200D Anti-Isolation Protection Device
产品简介Product Profile
ZRCT P200D防孤岛保护装置用于各类小电源并网供电系统，在发生孤岛现象时,可以快速切除并网点.使本站与电网侧迅速脱离，从而保证整个电站和相关维护人员的生命安全。
ZRCT P200D anti-islanding protection device is used in all kinds of small power Grid-connected Power Supply systems. When islanding occurs, the grid-connected points can be cut off quickly, so that the station and the grid side can be separated quickly, thus ensuring the safety of the whole power station and related maintenance personnel.
功能Function
■逆功率保护，逆功率保护需要满足以下条件:
Inverse power protection and inverse power protection need to satisfy the following conditions:
1）“逆功率”—投；
2） 二次逆功率值的绝对值≥“逆功率定值”；
3）三相电流（Ia、Ib、Ic）中有一相电流≥0.1A；或者采到合位信号（C4=1）；
4） 延时时间≥“逆功率延时”；
1) Inverse power - plunge;
2) Absolute value of quadratic inverse powere≥ "inverse power fixed value";
3) One of the three-phase currents (Ia, Ib, Ic)≥ 0.1A. Or the detent position signal (C4 = 1);
4) Delay time ≥ "Inverse power delay";
■外部联跳，满足以更好条件联跳动作:
External jump to meet better conditions of jump action:
1）“外部联跳1/2”—投;
2）对应开入量有信号;
1) "External tripping 1/2" - "plunge";
2) There is a signal corresponding to the switch input amount;
■系统失电，满足以下条件系统失电动作:
The system loses power, and system power failure meets the following conditions:
1）系统失电－“投”；
2）所有线电压都小于60V；
3）采样电流ia、ib、ic都<0.1A；
4）断路器合位；
1) System power failure - "plunge";
2) All line voltages are less than 60V;
3) the sampling currents ia, IB and IC are all < 0.1A.
4) Circuit breaker is at closing position
■有压自动合闸，满足以下条件有压自动合闸动作:
Voltage automatic closing meets the following conditions:
1）“有压自动合闸”—投；
2）所有线电压（Uab Ubc Uca）≥“有压合闸定值”；
3）断路器为分位；
4）装置刚上电，或者低电压动作引起跳闸；
5） 延时时间大于等于“有压合闸延时”；
1) Voltage automatic closing - "plunge";
2) All line voltages (Uab Ubc Uca) > Voltage closing threshold;
3) Circuit breakers are segregated;
4) The device has just been powered on, or tripping is caused by low voltage action;
5) The delay time is greater than or equal to "voltage switching delay".
