ABB RED650 - Two Step Overvoltage Protection OV2 PTOV; Functionality OV2 PTOV; Identification

Function Range or value Accuracy
Inverse time characteristics for step 1
and step 2, see table 675
- See table 675
Definite time delay, step 1 at 1.2 x U
set
to
0
(0.00-6000.00) s ±0.2% or ±40ms
whichever is greater
Definite time delay, step 2 at 1.2 x U
set
to
0
(0.000-60.000) s ±0.2% or ±40ms
whichever is greater
Minimum operate time, inverse
characteristics
(0.000–60.000) s ±0.5% or ±40ms
whichever is greater
Operate time, start at 2 x U
set
to 0 Min. = 15 ms
Max. = 30 ms
-
Reset time, start at 0 to 2 x U
set
Min. = 15 ms
Max. = 30 ms
-
Operate time, start at 1.2 x U
set
to 0 Min. = 5 ms
Max. = 25 ms
-
Reset time, start at 0 to 1.2 x U
set
Min. = 15 ms
Max. = 35 ms
-
Critical impulse time 5 ms typically at 1.2 x U
set
to 0 -
Impulse margin time 15 ms typically -
9.2 Two step overvoltage protection OV2PTOV
IP14545-1 v3
9.2.1 Identification
M17002-1 v8
Function description
IEC 61850
identification
IEC 60617 identification ANSI/IEEE C37.2
device number
Two step overvoltage protection OV2PTOV
3U>
SYMBOL-C-2U-SMALLER-THAN V2 EN-US
59
9.2.2 Functionality OV2PTOV
M13798-3 v15
Overvoltages may occur in the power system during abnormal conditions such as
sudden power loss, tap changer regulating failures, and open line ends on long
lines.
Two step overvoltage protection (OV2PTOV) function can be used to detect open
line ends, normally then combined with a directional reactive over-power function
to supervise the system voltage. When triggered, the function will cause an alarm,
switch in reactors, or switch out capacitor banks.
OV2PTOV has two voltage steps, each of them with inverse or definite time
delayed.
1MRK 505 394-UEN A Section 9
Voltage protection
Line differential protection RED650 2.2 IEC 241
Technical manual