GE L30, Instruction Manual, Page: 43 / 702

CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONS
L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-29
2
Operation time: <16 ms at 3
×
pickup at 60 Hz
PHASE UNDERVOLTAGE
Voltage: Phasor only
Pickup level: 0.004 to 3.000 pu in steps of 0.001
Dropout level: 102 to 103% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Curve shapes: GE IAV Inverse;
Definite Time (0.1s base curve)
Curve multiplier: Time dial = 0.00 to 600.00 in steps of 0.01
Curve timing accuracy at <0.90 x pickup:
±3.5% of operate time or ±1/2 cycle (whichever is greater) from pickup to operate
Operate time: <30 ms at 0.9 pickup at 60 Hz for Definite Time mode
AUXILIARY UNDERVOLTAGE
Pickup level: 0.004 to 3.000 pu in steps of 0.001
Dropout level: 102 to 103% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Curve shapes: GE IAV Inverse, Definite Time
Curve multiplier: Time Dial = 0 to 600.00 in steps of 0.01
Curve timing accuracy at <0.90 x pickup:
±3.5% of operate time or ±1/2 cycle (whichever is greater) from pickup to operate
Operate time: <30 ms at 0.9 pickup at 60 Hz for Definite Time mode
PHASE OVERVOLTAGE
Voltage: Phasor only
Pickup level: 0.004 to 3.000 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Pickup delay: 0.00 to 600.00 in steps of 0.01 s
Operate time: < 30 ms at 1.10 × pickup at 60 Hz
Timer accuracy: ±3% of operate time or ±1/4 cycle (whichever is greater)
NEUTRAL OVERVOLTAGE
Pickup level: 0.004 to 3.000 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Pickup delay: 0.00 to 600.00 s in steps of 0.01 (definite time) or user-defined curve
Reset delay: 0.00 to 600.00 s in steps of 0.01
Curve timing accuracy at >1.1 × pickup: ±3.5% of operate time or ±1 cycle (whichever is greater) from pickup to operate
Operate time:
< 30 ms at 1.10 × pickup at 60 Hz
AUXILIARY OVERVOLTAGE
Pickup level: 0.004 to 3.000 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Pickup delay: 0 to 600.00 s in steps of 0.01
Reset delay: 0 to 600.00 s in steps of 0.01
Timer accuracy: ±3% of operate time or ±1/4 cycle (whichever is greater)
Operate time: < 30 ms at 1.10 × pickup at 60 Hz
NEGATIVE SEQUENCE OVERVOLTAGE
Pickup level: 0.004 to 1.250 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Level accuracy: ±0.5% of reading from 10 to 208 V
Pickup delay: 0 to 600.00 s in steps of 0.01
Reset delay: 0 to 600.00 s in steps of 0.01