ABB Relion 670 series - Page 618

Function Range or value Accuracy
Inverse time characteristics for step 1
and step 2, see table 1085
- See table 1085
Definite time delay, step 1 at 1.2 to 0 x
V
set
(0.00-6000.00) s less than 40 ms
Definite time delay, step 2 at 1.2 to 0 x
V
set
(0.000-60.000) s less than 40 ms
Minimum trip time, inverse
characteristics
(0.000–60.000) s ±0.5% or ±40ms whichever is
greater
Trip time, pickup at 2 to 0 x V
set
Min. = 15 ms
Max. = 30 ms
-
Reset time, pickup at 0 to 2 x V
set
Min. = 15 ms
Max. = 30 ms
-
Trip time, pickup at 1.2 to 0 x V
set
Min. = 5 ms
Max. = 25 ms
-
Reset time, pickup at 0 to 1.2 x V
set
Min. = 15 ms
Max. = 35 ms
-
Critical impulse time 5 ms typically at 1.2 to 0 x V
set
-
Impulse margin time 15 ms typically -
9.2 Two step overvoltage protection OV2PTOV (59)
IP14545-1 v3
9.2.1 Identification
M17002-1 v7
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 v14
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.
OV2PTOV (59) has two voltage steps, each of them with inverse or definite time delayed.
OV2PTOV (59) has a high reset ratio to allow settings close to system service voltage.
Section 9 1MRK 502 066-UUS B
Voltage protection
612
Technical manual