ABB Relion 630 Series RET630 Product Manual page 53

ABB
Transformer Protection and Control
RET630
Product version: 1.1
Table 76. Operation characteristics
Parameter
Operating curve type
Operating curve type (voltage protection)
Control functions
Table 77. Synchrocheck (SYNCRSYN)
Characteristic
Operation accuracy
Reset time
Reset ratio
Operate time accuracy
Values (Range)
1=ANSI Ext. inv.
2=ANSI Very. inv.
3=ANSI Norm. inv.
4=ANSI Mod inv.
5=ANSI Def. Time
6=L.T.E. inv.
7=L.T.V. inv.
8=L.T. inv.
9=IEC Norm. inv.
10=IEC Very inv.
11=IEC inv.
12=IEC Ext. inv.
13=IEC S.T. inv.
14=IEC L.T. inv
15=IEC Def. Time
17=Programmable
18=RI type
19=RD type
5=ANSI Def. Time
15=IEC Def. Time
17=Inv. Curve A
18=Inv. Curve B
19=Inv. Curve C
20=Programmable
21=Inv. Curve A
22=Inv. Curve B
23=Programmable
Value
At the frequency f = f
n
Voltage: ±1.0% or ±0.002 x U
Frequency: ±10 mHz
Phase angle ±2°
< 50 ms
Typical 0.96
±1.0% of the set value or ±20 ms
1MRS756978 D
Issued: 2011-05-18
n
53