ABB Relion 670 Series RES670, Technical Manual

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Function Range or value Accuracy
Inverse time
characteristics, see table
703
4 curve types See table 703
Undervoltage:
Inverse time
characteristics, see table
704
3 curve types See table 704
High and low voltage limit,
voltage dependent
operation, step 1 - 2
(1.0 - 200.0)% of VBase ±1.0% of V
n
at V ≤ V
n
±1.0% of V at V > V
n
Directional function Settable: NonDir, forward and reverse -
Relay characteristic angle (-180 to +180) degrees ±2.0 degrees
Relay trip 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 V
set
-
Impulse margin time 15 ms typically -
Undervoltage:
Critical impulse time 10 ms typically at 1.2 to 0.8 x V
set
-
Impulse margin time 15 ms typically -
1MRK 511 365-UUS A
Section 11
Multipurpose protection
Phasor measurement unit RES670 2.1 ANSI 349
Technical manual