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GE L60 Instruction Manual Page 42

Line phase comparison system, ur series.
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2.2 SPECIFICATIONS
PHASE UNDERVOLTAGE
Voltage:
Pickup level:
Dropout level:
Level accuracy:
Curve shapes:
2
Curve multiplier:
Timing accuracy:
AUXILIARY UNDERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Curve shapes:
Curve multiplier:
Timing accuracy:
PHASE OVERVOLTAGE
Voltage:
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Operate time:
Timing accuracy:
NEUTRAL OVERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Reset delay:
Timing accuracy:
Operate time:
AUXILIARY OVERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Reset delay:
Timing accuracy:
Operate time:
NEGATIVE SEQUENCE OVERVOLTAGE
Pickup level:
Dropout level:
Level accuracy:
Pickup delay:
Reset delay:
Time accuracy:
Operate time:
2-12
Phasor only
0.000 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 (0.1s base curve)
Time dial = 0.00 to 600.00 in steps of
0.01
Operate at < 0.90 × pickup
±3.5% of operate time or ±4 ms (which-
ever is greater)
0.000 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
Time Dial = 0 to 600.00 in steps of 0.01
±3% of operate time or ±4 ms
(whichever is greater)
Phasor only
0.000 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% or ±4 ms (whichever is greater)
0.000 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
±3% or ±20 ms (whichever is greater)
< 30 ms at 1.10 × pickup at 60 Hz
0.000 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 ±4 ms
(whichever is greater)
< 30 ms at 1.10 × pickup at 60 Hz
0.000 to 1.250 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% or ±20 ms, whichever is greater
< 30 ms at 1.10 × pickup at 60 Hz
L60 Line Phase Comparison System
2 PRODUCT DESCRIPTION
BREAKER FAILURE
Mode:
1-pole, 3-pole
Current supervision:
phase, neutral current
Current supv. pickup:
0.001 to 30.000 pu in steps of 0.001
Current supv. dropout:
97 to 98% of pickup
Current supv. accuracy:
0.1 to 2.0 × CT rating: ±0.75% of reading or ±2% of rated
(whichever is greater)
above 2 × CT rating:
±2.5% of reading
BREAKER ARCING CURRENT
Principle:
accumulates breaker duty (I
sures fault duration
Initiation:
programmable per phase from any Flex-
Logic™ operand
Compensation for auxiliary relays: 0 to 65.535 s in steps of 0.001
Alarm threshold:
0 to 50000 kA2-cycle in steps of 1
Fault duration accuracy: 0.25 of a power cycle
Availability:
1 per CT bank with a minimum of 2
BREAKER FLASHOVER
Operating quantity:
phase current, voltage and voltage differ-
ence
Pickup level voltage:
0 to 1.500 pu in steps of 0.001
Dropout level voltage:
97 to 98% of pickup
Pickup level current:
0 to 1.500 pu in steps of 0.001
Dropout level current:
97 to 98% of pickup
Level accuracy:
±0.5% or ±0.1% of rated, whichever is
greater
Pickup delay:
0 to 65.535 s in steps of 0.001
Time accuracy:
±3% or ±42 ms, whichever is greater
<42 ms at 1.10 × pickup at 60 Hz
Operate time:
OPEN BREAKER ECHO
Keying of the transmitter in case one end of the line is open or
weak-infeed at the terminal.
SYNCHROCHECK
Max voltage difference: 0 to 400000 V in steps of 1
Max angle difference:
0 to 100
Max freq. difference:
0.00 to 2.00 Hz in steps of 0.01
Hysteresis for max. freq. diff.: 0.00 to 0.10 Hz in steps of 0.01
Dead source function:
None, LV1 & DV2, DV1 & LV2, DV1 or
DV2, DV1 xor DV2, DV1 & DV2
(L = Live, D = Dead)
AUTORECLOSURE
Two breakers applications
Single- and three-pole tripping schemes
Up to 4 reclose attempts before lockout
Selectable reclosing mode and breaker sequence
PILOT-AIDED SCHEMES
Permissive Overreaching Transfer Trip (POTT)
TRIP OUTPUT
Collects trip and reclose input requests and issues outputs to con-
trol tripping and reclosing.
Communications timer delay: 0 to 65535 s in steps of 0.001
Evolving fault timer:
0.000 to 65.535 s in steps of 0.001
Timing accuracy:
±3% or 4 ms, whichever is greater
2
t) and mea-
°
in steps of 1
GE Multilin

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