ABB REL670 Product Manual page 88

Line distance protection REL670 2.2
Product version: 2.2
Table 73. Rate-of-change of frequency protection SAPFRC
Function
Operate value, start function
Operate value, restore enable frequency
Definite restore time delay
Definite time delay for frequency gradient trip
Definite reset time delay
88
Range or value
(-10.00-10.00) Hz/s
(45.00-65.00) Hz
(0.000-60.000) s
(0.200-60.000) s
(0.000-60.000) s
1MRK 506 372-BEN -
Accuracy
±10.0 mHz/s
±2.0 mHz
±0.2% or ±100 ms whichever is
greater
±0.2% or ±120 ms whichever is
greater
±0.2% or ±250 ms whichever is
greater
ABB