ABB Relion REL650 Series Product Manual page 67

Line distance protection REL650
Version 2.2
Table 46. Voltage-restrained time overcurrent protection VRPVOC
Function
Start overcurrent
Reset ratio, overcurrent
Operate time, start overcurrent at 0 to 2 x I
Reset time, start overcurrent at 2 x I
Operate time, start overcurrent at 0 to 10 x
I
set
Reset time, start overcurrent at 10 x I
Independent time delay to operate at 0 to 2 x
I
set
Inverse time characteristics,
Operate time start overcurrent
Reset time start overcurrent
Minimum operate time for inverse time
characteristics
High voltage limit, voltage dependent
operation
Start undervoltage
Reset ratio, undervoltage
Operate time start undervoltage
Reset time start undervoltage
Independent time delay to operate,
undervoltage at 2 x U to 0
set
Internal low voltage blocking
Reset ratio, overcurrent
Reset ratio, undervoltage
Overcurrent:
Critical impulse time
Impulse margin time
Undervoltage:
Critical impulse time
Impulse margin time
Hitachi Power Grids
GUID-7EA9731A-8D56-4689-9072-D72D9CDFD795 v8
Range or value
(2.0 - 5000.0)% of IBase
> 95%
Min. = 15 ms
set
Max. = 30 ms
to 0 Min. = 15 ms
set
Max. = 30 ms
Min. = 5 ms
Max. = 20 ms
to 0 Min. = 20 ms
set
Max. = 35 ms
(0.00 - 6000.00) s
13 curve types
30 ms typically at 0 to 2 x I
20 ms typically at 0 to 10 x I
40 ms typically at 2 x I
(0.00 - 60.00) s
(30.0 - 100.0)% of UBase
(2.0 - 100.0)% of UBase
< 105%
30 ms typically 2 x U
40 ms typically at 0 to 2 x U
(0.00 - 6000.00) s
(0.0 - 5.0)% of UBase
> 95%
< 105%
10 ms typically at 0 to 2 x I
15 ms typically
10ms typically at 2 x U
15 ms typically
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Accuracy
±1.0% of I at I ≤ I
r
±1.0% of I at I > I
-
-
-
-
-
±0.2% or ±35 ms whichever is greater
-
set
set
to 0 -
set
±0.2% or ±35 ms whichever is greater
±1.0% of U
r
±0.5% of U
r
-
to 0 -
set
-
set
±0.2% or ±35 ms whichever is greater
±0.25% of U
r
-
-
-
set
-
to 0
set
1MRK 506 384-BEN H
r
r
67