ABB Relion 650 series RET650 Product Manual page 60

Transformer protection RET650
Product version: 1.1
Table 39. Rate-of-change frequency protection SAPFRC
Function
Operate value, start function
Operate value, restore enable
frequency
Timers
Operate time, start function
Secondary system supervision
Table 40. Breaker close/trip circuit monitoring TCSSCBR
Function
Operate time delay
60
Range or value
(-10.00-10.00) Hz/s
(45.00 - 65.00) Hz
(0.000 - 60.000) s
At 50 Hz: 100 ms typically
At 60 Hz: 80 ms typically
Range or value
(0.020 - 300.000) s
1MRK 504 127-BEN -
Issued: February 2011
Accuracy
± 10.0 mHz/s
± 2.0 mHz
<130 ms
-
Accuracy
± 0,5% ± 110 ms
ABB