DSBC176 3BSE019216R1
提供三级定向接地故障保护。根据
命令代码，方向接地故障保护方法可基于
仅常规定向接地故障（DEFxPDEF）或同时发生
具有导纳标准（EFPADM）或功率计接地故障保护（WPWDE）
或基于谐波的接地故障保护（HAEFPTOC）。此外，还有
用于瞬态接地故障的专用保护级（INTRPTEF）
补偿网络中的电缆间歇性接地故障保护。
专用非定向接地故障保护块（EFHPTOC）旨在：
用于在隔离或补偿的情况下防止双接地故障
网络。该保护功能使用计算的剩余电流源
从相电流。
1MRS756378 K第3节
REF615标准配置
参考文献615:57
应用手册
二进制输入2（X110:3-4）用于定向接地故障保护
模块继电器特性角（RCA:0°/-90°）或运行模式（I0Sinφ/
φ）的变化。所有操作信号均连接至主跳闸装置以及
报警指示灯。LED 2用于定向接地故障，LED 3用于双接地故障保护操作指示。
GUID-54404411-CD8E-4277-A0A1-80B31CBD45EC V2 EN
图23：剩余过压保护
剩余过压保护（ROVPTOV）提供接地故障保护
通过检测剩余电压的异常电平。例如，它可以用作
选择性定向接地故障的非选择性后备保护
功能。操作信号连接至报警LED 3。
第3节1MRS756378 K
REF615标准配置
58参考文献615
应用手册
EFPADM2操作PHHPTOC2操作PHHPTOC1操作PHIPTOC1操作DEFLPDEF2操作DEFHPDEF1操作或
X120_BI2（CB闭合）+PO2
8.
9
X100
LED6（CBFP操作）
上游断路器CCBRBRF1的CBFP跳闸
3I>/Io->BF
51BF/51NBF 3I
Io
启动POSCLOSE CB_FAULT块
TRRET TRBU CB_FAULT_AL
PDNSTOC1
I2/I1
46PD 3I
闭塞启动操作
T1PTTR1
3 >
49F 3I
BLK_OPR ENA_MULT
操作报警BLK_CLOSE START
热过载保护
相位不连续保护
断路器故障保护
LED5（过载报警）
LED4（NPS/PD运行）
WPWDE2操作WPWDE3操作
EFPADM3运行电弧ARC1运行电弧ARC2运行电弧ARC3运行
A071320 V6 EN
图24：相位不连续、热过载和断路器故障
保护
相位不连续性保护（PDNPSTOC1）提供以下保护：
正常三相负载供电中断，例如，在停机时
指挥情况。相位不连续保护的操作信号为：
连接到主跳闸，也连接到报警LED和干扰
录音机热过载保护（T1PTTR1）提供以下指示：
超载情况。热过载保护的操作信号为：
连接到主跳闸和报警LED。LED 4用于
相位不连续保护操作指示，与负极相同
顺序过电流保护操作指示，LED 5用于
热过载保护报警指示。
断路器故障保护（CCBRBRF1）通过启动输入启动
IED中不同保护级的数量。断路器故障保护
功能提供与断路器相关的不同操作模式
位置以及测量的相位和剩余电流。断路器故障
保护有两个操作输出：TRRET和TRBU。TRRET运行
输出用于通过主跳闸2重新触发其自身断路器。TRBU
输出用于向断路器上游馈电提供备用跳闸。为此
目的：TRBU操作输出信号连接到输出PO2（X100:
8-9). LED 6用于备用（TRBU）操作指示。 DSBC176 3BSE019216R1
DSBC176 3BSE019216R1
Three stages are offered for directional earth-fault protection. According to the
order code, the directional earth-fault protection method can be based on
conventional directional earth-fault (DEFxPDEF) only or alternatively together
with admittance criteria (EFPADM) or wattmetric earth-fault protection (WPWDE)
or harmonic based earth-fault protection (HAEFPTOC). In addition, there is a
dedicated protection stage (INTRPTEF) either for transient-based earth-fault
protection or for cable intermittent earth-fault protection in compensated networks.
A dedicated non-directional earth-fault protection block (EFHPTOC) is intended
for protection against double earth-fault situations in isolated or compensated
networks. This protection function uses the calculated residual current originating
from the phase currents.
1MRS756378 K Section 3
REF615 standard configurations
REF615 57
Application Manual
The binary input 2 (X110:3-4) is intended for directional earth-fault protection
blocks’ relay characteristic angle (RCA: 0°/-90°) or operation mode (I0Sinφ/
I0Cosφ) change. All operate signals are connected to the Master Trip as well as to
the alarm LEDs. LED 2 is used for directional earth-fault and LED 3 for double earthfault protection operate indication.
GUID-54404411-CD8E-4277-A0A1-80B31CBD45EC V2 EN
Figure 23: Residual overvoltage protection
The residual overvoltage protection (ROVPTOV) provides earth-fault protection
by detecting abnormal level of residual voltage. It can be used, for example, as a
nonselective backup protection for the selective directional earth-fault
functionality. The operation signal is connected to alarm LED 3.
Section 3 1MRS756378 K
REF615 standard configurations
58 REF615
Application Manual
EFPADM2-operate PHHPTOC2-operate PHHPTOC1-operate PHIPTOC1-operate DEFLPDEF2-operate DEFHPDEF1-operate OR
X120_BI2 (CB Closed) + PO2
8
9
X100
LED6 (CBFP OPERATE)
CBFP trip to upstream breaker CCBRBRF1
3I>/Io -> BF
51BF/51NBF 3I
Io
START POSCLOSE CB_FAULT BLOCK
TRRET TRBU CB_FAULT_AL
PDNSTOC1
I2 / I1
46PD 3I
BLOCK START OPERATE
T1PTTR1
3 >
49F 3I
BLK_OPR ENA_MULT
OPERATE ALARM BLK_CLOSE START
THERMAL OVERLOAD PROTECTION
PHASE DISCONTINUITY PROTECTION
BREAKER FAILURE PROTECTION
LED5 (OVERLOAD ALARM)
LED4 (NPS/PD OPERATE)
WPWDE2-operate WPWDE3-operate
EFPADM3-operate ARCSARC1-operate ARCSARC2-operate ARCSARC3-operate
A071320 V6 EN
Figure 24: Phase discontinuity, thermal overload and circuit breaker failure
protection
The phase discontinuity protection (PDNPSTOC1) provides protection for
interruptions in the normal three-phase load supply, for example, in downed
conductor situations. The operate signal of the phase discontinuity protection is
connected to the Master Trip and also to an alarm LED and the disturbance
recorder. The thermal overload protection (T1PTTR1) provides indication on
overload situations. The operate signal of the thermal overload protection is
connected to the Master Trip and also to an alarm LED. LED 4 is used for the
phase discontinuity protection operate indication, the same as for negative
sequence overcurrent protection operate indication, and LED 5 is used for the
thermal overload protection alarm indication.
The breaker failure protection (CCBRBRF1) is initiated via the start input by a
number of different protection stages in the IED. The breaker failure protection
function offers different operating modes associated with the circuit breaker
position and the measured phase and residual currents. The breaker failure
protection has two operating outputs: TRRET and TRBU. The TRRET operate
output is used for retripping its own breaker through the Master Trip 2. The TRBU
output is used to give a back-up trip to the breaker feeding upstream. For this
purpose, the TRBU operate output signal is connected to the output PO2 (X100:
8-9). LED 6 is used for back-up (TRBU) operate indication.
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