ABB RET670 Product Guide

Secondary system supervision
Table 68. Current circuit supervision CCSSPVC
Function Range or value Accuracy
Operate current (10-200)% of IBase ±10.0% of I
r
at I ≤ I
r
±10.0% of I at I > I
r
Reset ratio, Operate current >90%
Block current (20-500)% of IBase ±5.0% of I
r
at I ≤ I
r
±5.0% of I at I > I
r
Reset ratio, Block current >90% at (50-500)% of IBase
Table 69. Fuse failure supervision FUFSPVC
Function
Range or value Accuracy
Operate voltage, zero sequence (1-100)% of UBase ± 0.5% of U
r
Operate current, zero sequence (1–100)% of IBase ± 0.5% of I
r
Operate voltage, negative sequence (1-100)% of UBase 0.5% of U
r
Operate current, negative sequence (1–100)% of IBase ± 0.5% of I
r
Operate voltage change level (1-100)% of UBase ± 10.0% of U
r
Operate current change level (1–100)% of IBase ± 10.0% of I
r
Operate phase voltage (1-100)% of UBase ± 0.5% of U
r
Operate phase current (1–100)% of IBase ± 0.5% of I
r
Operate phase dead line voltage (1-100)% of UBase ± 0.5% of U
r
Operate phase dead line current (1–100)% of IBase ± 0.5% of I
r
Operate time, start, 1 ph, at 1 to 0 x U
r
Min. = 10 ms
Max. = 25 ms
-
Reset time, start, 1 ph, at 0 to 1 x U
r
Min. = 15 ms
Max. = 30 ms
-
Transformer protection RET670 2.0
1MRK 504 141-BEN C
Product version: 2.0
80 ABB

ABB RET670 Specifications

General

Rated Frequency	50/60 Hz
Inputs	Analog and binary inputs
Application	Protection of power systems
Communication Protocols	IEC 61850, DNP3, Modbus
Operating Temperature Range	-25°C to +55°C
Mounting	Rack mounted
Number of Binary Inputs	Up to 48
Number of Binary Outputs	32
Protection Functions	Overcurrent Protection
Outputs	Binary outputs
Enclosure	IP 54
Type	Line Differential Protection
Number of Analog Inputs	24