ABB RELION 670 SERIES REG670 - Voltage Differential Protection VDCPTOV (60); Identification; Application

1 2 5 50 200
110
120
130
140
150
100
0.05 0.1 0.2 0.5 10 20 100
V/Hz
%
Continous
Time
(minutes)
t6 t5 t4 t3 t2 t1
transformer capability curve
relay operate characteristic
en01000377.vsd
IEC01000377 V1 EN-US
Figure 209: Example on overexcitation capability curve and V/Hz protection
settings for power transformer
10.5 Voltage differential protection VDCPTOV (60)
SEMOD153860-1 v2
10.5.1 Identification
SEMOD167723-2 v2
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Voltage differential protection VDCPTOV - 60
10.5.2 Application
SEMOD153893-5 v3
The Voltage dif
ferential protection VDCPTOV (60) functions can be used in some
different applications.
• Voltage unbalance protection for capacitor banks. The voltage on the bus is
supervised with the voltage in the capacitor bank, phase- by phase. Difference
Section 10 1MRK 502 071-UUS A
Voltage protection
460 Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Application manual