ABB REQ650 - Page 9

IEC 61850/
Function
block name
ANSI Function description Breaker
REQ650
REQ650 (A01) 3Ph/1CB/1BB REQ650 (A11) 1Ph/1CB/1BB REQ650 (B11) 1Ph/1CB/2BB
ROV2PTOV 59N Two step residual overvoltage
protection
0–1 1 1 1
LOVPTUV 27 Loss of voltage check 0–1 1 1 1
Frequency protection
SAPTUF 81 Underfrequency function 0–2 2 2 2
SAPTOF 81 Overfrequency function 0–2 2 2 2
SAPFRC 81 Rate-of-change frequency protection 0–2 2 2 2
Breaker protection REQ650 1MRK 505 283-BEN -
Product version: 1.2
ABB 9