Function Range or value Accuracy
Definite time delay, low step (step 1) at 0
to 1.2 x U
set
(0.00 - 6000.00) s ±0.2% or ±45 ms
whichever is greater
Definite time delay, high step (step 2) at 0
to 1.2 x U
set
(0.000-60.000) s ±0.2% or ±45 ms
whichever is greater
Minimum operate time, Inverse
characteristics
(0.000-60.000) s ±0.2% or ±45 ms
whichever is greater
Operate time, start at 0 to 2 x U
set
Min. = 15 ms
Max. = 30 ms
-
Reset time, start at 2 x U
set
to 0 Min. = 15 ms
Max. = 30 ms
-
Operate time, start at 0 to 1.2 x U
set
Min. = 20 ms
Max. = 35 ms
-
Reset time, start at 1.2 x U
set
to 0 Min. = 5 ms
Max. = 25 ms
-
Critical impulse time 10 ms typically at 0 to 2 x U
set
-
Impulse margin time 15 ms typically -
7.3 Two step residual overvoltage protection
ROV2PTOV
IP14546-1 v4
7.3.1 Identification
SEMOD54295-2 v6
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Two step residual overvoltage
protection
ROV2PTOV
IEC15000108 V1 EN-US
59N
7.3.2 Monitored data
PID-3531-MONITOREDDATA v4
Table 114: ROV2PTOV Monitored data
Name
Type Values (Range) Unit Description
ULevel REAL - kV Magnitude of measured
voltage
7.3.3 Operation principle
M15331-3 v8
Two step residual overvoltage protection ROV2PTOV is used to detect a high
residual voltage. The residual voltage can be measured directly from a voltage
transformer in the neutral of a power transformer or from a three-phase voltage
Section 7 1MRK 505 384-UEN A
Voltage protection
190 Breaker protection REQ650 2.2 IEC
Technical manual
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