Table 22. 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 high impedance differential
protection (10% content)
2nd, 3rd and 5
th
harmonic of f
r
±5.0%
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
Type tests according to standards
IP15778-1 v1
M16706-1 v8
1MRK 502 068-BEN D
Generator protection REG670 2.1 IEC
Product version: 2.1
ABB
47
Содержание RELION 670 SERIES REG670
Страница 1: ...Relion 670 series Generator protection REG670 2 1 IEC Product guide...
Страница 133: ...133...