Voltage Differential Protection Vdcptov; Identification - ABB RELION 670 Series Applications Manual

Section 9
Voltage protection
Table 45: Settings
U/f op (%)
105
112
119
126
133
140
Information on the cooling time constant T
transformer manufacturer.
V/Hz
%
150
140
130
120
110
100
0.05
t6
IEC01000377 V1 EN-US
Figure 280: Example on overexcitation capability curve and V/Hz protection settings for
9.5

Voltage differential protection VDCPTOV

9.5.1

Identification

Function description
Voltage differential protection
480
Timer
t1
t2
t3
t4
t5
t6
transformer capability curve
relay operate characteristic
0.1 0.2 0.5 1
t5 t4 t3
power transformer
Time set (s)
7200 (max)
600
60
20
8
4
should be retrieved from the power
cool
2 5 10 20
t2
IEC 61850 IEC 60617
identification identification
VDCPTOV
1MRK 504 152-UEN B
Continous
50 100 200 Time
(minutes)
t1
en01000377.vsd
ANSI/IEEE C37.2
device number
- 60
Application manual
SEMOD153860-1 v2
SEMOD167723-2 v2