ABB RET670 Product Manual page 63

ABB
Transformer protection RET670 ANSI
Pre-configured
Product version: 1.2
Table 41. General current and voltage protection CVGAPC , continued
Function
Operate time, pickup overvoltage
Reset time, pickup overvoltage
Operate time pickup undervoltage
Reset time pickup undervoltage
High and low voltage limit, voltage
dependent operation
Directional function
Relay characteristic angle
Relay operate angle
Reset ratio, overcurrent
Reset ratio, undercurrent
Reset ratio, overvoltage
Reset ratio, undervoltage
Overcurrent:
Critical impulse time
Impulse margin time
Undercurrent:
Critical impulse time
Impulse margin time
Overvoltage:
Critical impulse time
Impulse margin time
Undervoltage:
Critical impulse time
Impulse margin time
Range or value
25 ms typically at 0 to 2 x V
set
25 ms typically at 2 to 0 x V
set
25 ms typically 2 to 0 x V
set
25 ms typically at 0 to 2 x V
set
(1.0 - 200.0)% of VBase
Settable: NonDir, forward and reverse
(-180 to +180) degrees
(1 to 90) degrees
> 95%
< 105%
> 95%
< 105%
10 ms typically at 0 to 2 x I
set
15 ms typically
10 ms typically at 2 to 0 x I
set
15 ms typically
10 ms typically at 0 to 2 x V
set
15 ms typically
10 ms typically at 2 to 0 x V
set
15 ms typically
1MRK 504 118-BUS A
Accuracy
-
-
-
-
± 1.0% of V for V<V
n n
± 1.0% of V for V>V
n
-
± 2.0 degrees
± 2.0 degrees
-
-
-
-
-
-
-
-
-
-
-
-
63