ABB RET670 Product Guide

Table 16. Auxiliary DC supply voltage influence on functionality during operation
Dependence on Reference value Within nominal
range
Influence
Ripple, in DC auxiliary voltage
Operative range
max. 2%
Full wave rectified
15% of EL 0.01% / %
Auxiliary voltage dependence, operate
value
±20% of EL 0.01% / %
Interrupted auxiliary DC voltage 24-60 V DC ± 20%
90-250 V DC ±20%
Interruption interval
0–50 ms
No restart
0–∞ s Correct behaviour at power down
Restart time <300 s
Table 17. Frequency influence (reference standard: IEC 60255–1)
Dependence on
Within nominal range Influence
Frequency dependence, operate value f
r
±2.5 Hz for 50 Hz
f
r
±3.0 Hz for 60 Hz
±1.0% / Hz
Frequency dependence for distance protection operate value f
r
±2.5 Hz for 50 Hz
f
r
±3.0 Hz for 60 Hz
±2.0% / Hz
Harmonic frequency dependence (20% content)
2
nd
, 3
rd
and 5
th
harmonic of f
r
±2.0%
Harmonic frequency dependence for distance protection (10% content)
2
nd
, 3
rd
and 5
th
harmonic of f
r
±10.0%
Harmonic frequency dependence for high impedance differential
protection (10% content)
2
nd
, 3rd and 5
th
harmonic of f
r
±10.0%
Harmonic frequency dependence for overcurrent protection
2
nd
, 3
rd
and 5
th
harmonic of f
r
±3.0% / Hz
Transformer protection RET670 2.0
1MRK 504 141-BEN C
Product version: 2.0
50 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