GE L60 Instruction Manual page 34

SPECIFICATIONS
PHASE DIRECTIONAL OVERCURRENT
Relay connection:
Quadrature voltage:
Polarizing voltage threshold:
Current sensitivity threshold:
Characteristic angle:
Angle accuracy:
2
Operation time (FlexLogic operands):
Tripping (reverse load, forward fault): <12 ms, typically
Blocking (forward load, reverse fault): <8 ms, typically
NEUTRAL DIRECTIONAL OVERCURRENT
Directionality:
Polarizing:
Polarizing voltage:
Polarizing current:
Operating current:
Level sensing:
Restraint, K:
Characteristic angle:
Limit angle:
Angle accuracy:
Offset impedance:
Pickup level:
Dropout level:
Operation time:
NEGATIVE SEQUENCE DIRECTIONAL OC
Directionality:
Polarizing:
Polarizing voltage:
Operating current:
Level sensing:
Zero-sequence:
Negative-sequence:
Restraint, K:
Characteristic angle:
Limit angle:
Angle accuracy:
Offset impedance:
Pickup level:
Dropout level:
Operation time:
WATTMETRIC ZERO-SEQUENCE DIRECTIONAL
Measured power:
Number of elements:
Characteristic angle:
Minimum power:
Pickup level accuracy:
Hysteresis:
Pickup delay:
Inverse time multiplier:
Curve timing accuracy:
Operate time:
2-20
°
90 (quadrature)
ABC phase seq.: phase A (V ), phase B (V
BC
B (V ), phase C (V )
AC BA
0.004 to 3.000 pu in steps of 0.001
0.05 pu
°
0 to 359 in steps of 1
±2°
Co-existing forward and reverse
Voltage, Current, Dual, Dual-V, Dual-I
V_0 or VX
IG
I_0
3 × (|I_0| – K × |I_1|), IG
0.000 to 0.500 in steps of 0.001
–90 to 90° in steps of 1
40 to 90° in steps of 1, independent for forward and reverse
±2°
0.00 to 250.00 Ω in steps of 0.01
0.002 to 30.000 pu in steps of 0.01
97 to 98%
<16 ms at 3 × pickup at 60 Hz
Co-existing forward and reverse
Voltage
V_2
I_2
|I_0| – K × |I_1|
|I_2| – K × |I_1|
0.000 to 0.500 in steps of 0.001
0 to 90° in steps of 1
40 to 90° in steps of 1, independent for forward and reverse
±2°
0.00 to 250.00 Ω in steps of 0.01
0.015 to 30.000 pu in steps of 0.01
97 to 98%
<16 ms at 3 × pickup at 60 Hz
zero-sequence
2
0 to 360° in steps of 1
0.001 to 1.200 pu in steps of 0.001
±1% or ±0.0025 pu, whichever is greater
3% or 0.001 pu, whichever is greater
definite time (0 to 600.00 s in steps of 0.01), inverse time, or FlexCurve
0.01 to 2.00 s in steps of 0.01
±3.5% of operate time or ±1 cycle (whichever is greater) from pickup to operate
<30 ms at 60 Hz
CHAPTER 2: PRODUCT DESCRIPTION
), phase C (V ); ACB phase seq.: phase A (V
CA AB
L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
), phase
CB