GE M60 Instruction Manual page 27

CHAPTER 2: PRODUCT DESCRIPTION
PHASE DIRECTIONAL OVERCURRENT
Relay connection:
Quadrature voltage:
Polarizing voltage threshold:
Current sensitivity threshold:
Characteristic angle:
Angle accuracy:
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:
AMP UNBALANCE
Average and full load amps: RMS
I_1 and I_2 amps:
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Reset delay:
Operate time:
Timer accuracy:
MECHANICAL JAM
Operating condition:
Arming condition:
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Reset delay:
Timer accuracy:
ACCELERATION TIME
Acceleration current:
Acceleration time:
Operating mode:
Timer accuracy:
Level accuracy:
M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
°
90 (quadrature)
ABC phase seq.: phase A (V ), phase B (V
BC
B (V ), phase C (V )
AC BA
0.000 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  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
phasor
0.0 to 100.0% in steps of 0.1
97 to 98% of pickup
±0.1
0.00 to 600.00 s in steps of 0.01
0.00 to 600.00 s in steps of 0.01
<20 ms at 1.10  pickup at 60 Hz
±3% of operate time or ±20 ms, whichever is greater
Phase overcurrent
Motor not starting
1.00 to 10.00  FLA in steps of 0.01
97 to 98% of pickup
at 0.1 to 2.0  CT: ±0.5% of reading
at >2.0  CT rating: ±1.5% of reading
0.10 to 600.00 s in steps of 0.01
0.00 to 600.00 s in steps of 0.01
±3% of operate time or ±20 ms, whichever is greater
1.00 to 10.00  FLA in steps of 0.01
0.00 to 180.00 s in steps of 0.01
Definite Time, Adaptive
±100 ms or ±0.5% of total time (whichever is greater)
±0.5% of reading or ±0.4% of rated (whichever is greater) at 0.1 to 2.0 × CT rating; ±1.5% of read-
ing at >2.0 × CT rating
), phase C (V ); ACB phase seq.: phase A (V
CA AB
SPECIFICATIONS
), phase
CB
2
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