Function
Range or value
Accuracy
Inverse time
characteristics, see
3 curve types
High and low voltage
limit, voltage
dependent operation,
step 1 - 2
(1.0 - 200.0)% of UBase
±1.0% of U
r
at U ≤ U
r
±1.0% of U at U > U
r
Directional function
Settable: NonDir, forward and reverse
-
Relay characteristic
angle
(-180 to +180) degrees
±2.0 degrees
Relay operate angle
(1 to 90) degrees
±2.0 degrees
Reset ratio,
overcurrent
> 95%
-
Reset ratio,
undercurrent
< 105%
-
Reset ratio,
overvoltage
> 95%
-
Reset ratio,
undervoltage
< 105%
-
Overcurrent:
Critical impulse time
10 ms typically at 0 to 2 x I
set
-
Impulse margin time
15 ms typically
-
Undercurrent:
Critical impulse time
10 ms typically at 2 to 0 x I
set
-
Impulse margin time
15 ms typically
-
Overvoltage:
Critical impulse time
10 ms typically at 0.8 to 1.2 x U
set
-
Impulse margin time
15 ms typically
-
Undervoltage:
Critical impulse time
10 ms typically at 1.2 to 0.8 x U
set
-
Impulse margin time
15 ms typically
-
1MRK502052-UEN B
Section 11
Multipurpose protection
593
Technical manual
Summary of Contents for Relion REG670
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