ABB Relion 670 Series Product Manual page 84

Bay control REC670
Version 2.2
Table 56. Residual overvoltage protection, two steps ROV2PTOV
Function
Operate voltage, step 1 - step 2
Absolute hysteresis
Inverse time characteristics for low
and high step, see table 180
Definite time delay low step (step 1) at
0 to 1.2 x U
set
Definite time delay high step (step 2)
at 0 to 1.2 x U
set
Minimum operate time
Operate time, start at 0 to 2 x U
Reset time, start at 2 x U
set
Operate time, start at 0 to 1.2 x U
Reset time, start at 1.2 x U
set
Critical impulse time
Impulse margin time
Table 57. Voltage differential protection VDCPTOV
Function
Voltage difference for alarm and trip
Under voltage level
Independent time delay for voltage
differential alarm at 0.8 x UDAlarm to 1.2 x
UDAlarm
Independent time delay for voltage
differential trip at 0.8 x UDTrip to 1.2 x
UDTrip
Independent time delay for voltage
differential reset at 1.2 x UDTrip to 0.8 x
UDTrip
84
Range or value
(1.0-200.0)% of
(0.0–50.0)% of
-
(0.00–6000.00) s
(0.000–60.000) s
(0.000-60.000) s
Min. = 15 ms
set
Max. = 30 ms
to 0 Min. = 15 ms
Max. = 30 ms
Min. = 20 ms
set
Max. = 35 ms
to 0 Min. = 5 ms
Max. = 25 ms
10 ms typically at 0 to 2 x U
15 ms typically
Range or value
(2.0–100.0) % of
(1.0–100.0) % of
(0.000–60.000)s
(0.000–60.000)s
(0.000–60.000)s
© Copyright 2017 Hitachi Power Grids. All rights reserved
M13317-2 v15
Accuracy
UBase
± 0.5% of U
± 0.5% of U at U > U
UBase
± 0.5% of U
± 0.5% of U at U > U
See table 180
± 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
-
SEMOD166919-2 v7
Accuracy
UBase
±0.5% of U
UBase
±0.5% of U
±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 511 404-BEN N
at U ≤ U
r r
r
at U ≤ U
r r
r
r
r
Hitachi Power Grids