GE B30 Instruction Manual page 35

CHAPTER 2: PRODUCT DESCRIPTION
Operate time:
Timer accuracy:
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
PHASE UNDERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Curve shapes:
Curve multiplier:
Curve timing accuracy at <0.90 x pickup:
Operate time:
PHASE OVERVOLTAGE
Voltage:
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Operate time:
Timer accuracy:
NEUTRAL OVERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Reset delay:
Curve timing accuracy at >1.1 pickup: ±3.5% of operate time or ±1 cycle (whichever is greater) from pickup to operate
Operate time:
AUXILIARY OVERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Reset delay:
Timer accuracy:
Operate time:
BREAKER FAILURE
Mode:
Current supervision:
B30 BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
<16 ms at 3 × pickup at 60 Hz (Phase/Ground IOC)
<20 ms at 3 × pickup at 60 Hz (Neutral IOC)
±3% of operate time or ±1/4 cycle (whichever is greater)
°
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°
0.004 to 3.000 pu in steps of 0.001
102 to 103% of pickup
±0.5% of reading from 10 to 208 V
GE IAV Inverse;
Definite Time (0.1 s base curve)
Time dial = 0.00 to 600.00 in steps of 0.01
±3.5% of operate time or ±1/2 cycle (whichever is greater) from pickup to operate
<30 ms at 0.9 pickup at 60 Hz for Definite Time mode
Phasor only
0.004 to 3.000 pu in steps of 0.001
97 to 98% of pickup
±0.5% of reading from 10 to 208 V
0.00 to 600.00 in steps of 0.01 s
<30 ms at 1.10 × pickup at 60 Hz
±3% of operate time or ±1/4 cycle (whichever is greater)
0.004 to 3.000 pu in steps of 0.001
97 to 98% of pickup
±0.5% of reading from 10 to 208 V
0.00 to 600.00 s in steps of 0.01 (definite time) or user-defined curve
0.00 to 600.00 s in steps of 0.01
<30 ms at 1.10 pickup at 60 Hz
0.004 to 3.000 pu in steps of 0.001
97 to 98% of pickup
±0.5% of reading from 10 to 208 V
0 to 600.00 s in steps of 0.01
0 to 600.00 s in steps of 0.01
±3% of operate time or ±1/4 cycle (whichever is greater)
<30 ms at 1.10 × pickup at 60 Hz
1-pole, 3-pole
phase, neutral current
), phase C (V ); ACB phase seq.: phase A (V
CA AB
SPECIFICATIONS
), phase
CB
2
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