ABB RELION 630 Series Product Manual page 48

Generator Protection and Control
REG630
Product version: 1.3
Control functions
Table 97. Synchrocheck (SYNCRSYN)
Characteristic
Operation accuracy
Reset time
Reset ratio
Operate time accuracy
48
Value
At the frequency f = f
n
Voltage: ±1.0% or ±0.002 × U
Frequency: ±10 mHz
Phase angle ±2°
<50 ms
Typically 0.96
+90ms/0 ms
1MRS757583 C
n
ABB