ABB RELION 670 Series Product Manual page 66

Bay control REC670 2.1 IEC
Table 46. Two step residual overvoltage protection ROV2PTOV
Function
Operate voltage, step 1 and step 2
Absolute hysteresis
Inverse time characteristics for low and high step, see
table 147
Definite time delay low step (step 1) at 0 to 1.2 x U
Definite time delay high step (step 2) at 0 to 1.2 x U
Minimum operate time
Operate time, start at 0 to 2 x U
Reset time, start at 2 to 0 x U
Operate time, start at 0 to 1.2 x U
Reset time, start at 1.2 to 0 x U
Critical impulse time
Impulse margin time
Table 47. Voltage differential protection VDCPTOV
Function
Voltage difference for alarm
and trip
Under voltage level
Independent time delay for
voltage differential alarm at
0.8 to 1.2 x UDAlarm
Independent time delay for
voltage differential trip at 0.8
to 1.2 x UDTrip
Independent time delay for
voltage differential reset at 1.2
to 0.8 x UDTrip
66
set
set
set
set
set
set
Range or value
UBase
(2.0–100.0) % of
(1.0–100.0) % of UBase
(0.000–60.000)s
(0.000–60.000)s
(0.000–60.000)s
M13317-2 v12
Range or value
UBase
(1.0-200.0)% of
UBase
(0.0–50.0)% of
-
(0.00–6000.00) s
(0.000–60.000) s
(0.000-60.000) s
Min. = 15 ms
Max. = 30 ms
Min. = 15 ms
Max. = 30 ms
Min. = 20 ms
Max. = 35 ms
Min. = 5 ms
Max. = 25 ms
10 ms typically at 0 to 2 x U
15 ms typically
SEMOD166919-2 v6
Accuracy
±0.5% of U
r
±0.5% of U
r
±0.2% or ±40 ms whichever is greater
±0.2% or ±40 ms whichever is greater
±0.2% or ±40 ms whichever is greater
1MRK 511 361-BEN D
Accuracy
± 0.5% of U
r
± 0.5% of U at U > U
± 0.5% of U
r
± 0.5% of U at U > U
See table 147
± 0.2% or ± 45 ms whichever is
greater
± 0.2% or ± 45 ms whichever is
greater
± 0.2% or ± 45 ms whichever is
greater
-
-
-
-
-
set
-
at U ≤ U
r
r
at U ≤ U
r
r
ABB