GE L60 Instruction Manual page 44

2.2 SPECIFICATIONS
BREAKER FAILURE
Mode:
Current supervision:
Current supv. pickup:
Current supv. dropout:
Current supv. accuracy:
0.1 to 2.0 × CT rating: ±0.75% of reading or ±2% of rated
2
above 2 × CT rating:
BREAKER ARCING CURRENT
Principle:
Initiation:
Compensation for auxiliary relays: 0 to 65.535 s in steps of 0.001
Alarm threshold:
Fault duration accuracy: 0.25 of a power cycle
Availability:
BREAKER FLASHOVER
Operating quantity:
Pickup level voltage:
Dropout level voltage:
Pickup level current:
Dropout level current:
Level accuracy:
Pickup delay:
Time accuracy:
Operate time:
OPEN BREAKER ECHO
Keying of the transmitter in case one end of the line is open or
SYNCHROCHECK
Max voltage difference: 0 to 400000 V in steps of 1
Max angle difference:
Max freq. difference:
Hysteresis for max. freq. diff.: 0.00 to 0.10 Hz in steps of 0.01
Dead source function:
AUTORECLOSURE
Two breakers applications
Single- and three-pole tripping schemes
Up to 4 reclose attempts before lockout
Selectable reclosing mode and breaker sequence
2-12
1-pole, 3-pole
phase, neutral current
0.001 to 30.000 pu in steps of 0.001
97 to 98% of pickup
(whichever is greater)
±2.5% of reading
2
accumulates breaker duty (I t) and mea-
sures fault duration
programmable per phase from any Flex-
Logic™ operand
0 to 50000 kA2-cycle in steps of 1
1 per CT bank with a minimum of 2
phase current, voltage and voltage differ-
ence
0 to 1.500 pu in steps of 0.001
97 to 98% of pickup
0 to 1.500 pu in steps of 0.001
97 to 98% of pickup
±0.5% or ±0.1% of rated, whichever is
greater
0 to 65.535 s in steps of 0.001
±3% or ±42 ms, whichever is greater
<42 ms at 1.10 × pickup at 60 Hz
weak-infeed at the terminal.
°
0 to 100 in steps of 1
0.00 to 2.00 Hz in steps of 0.01
None, LV1 & DV2, DV1 & LV2, DV1 or
DV2, DV1 xor DV2, DV1 & DV2
(L = Live, D = Dead)
L60 Line Phase Comparison Relay
2 PRODUCT DESCRIPTION
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
POWER SWING DETECT
Functions: Power swing block, Out-of-step trip
Characteristic: Mho or Quad
Measured impedance: Positive-sequence
Blocking / tripping modes: 2-step or 3-step
Tripping mode: Early or Delayed
Current supervision:
Pickup level: 0.050 to 30.000 pu in steps of 0.001
Dropout level: 97 to 98% of pickup
Fwd / reverse reach (sec. Ω): 0.10 to 500.00 Ω in steps of 0.01
Left and right blinders (sec. Ω): 0.10 to 500.00 Ω in steps of 0.01
Impedance accuracy: ±5%
Fwd / reverse angle impedances: 40 to 90° in steps of 1
Angle accuracy: ±2°
Characteristic limit angles: 40 to 140° in steps of 1
Timers: 0.000 to 65.535 s in steps of 0.001
Timing accuracy: ±3% or 4 ms, whichever is greater
LOAD ENCROACHMENT
Responds to: Positive-sequence quantities
Minimum voltage: 0.000 to 3.000 pu in steps of 0.001
Reach (sec. Ω): 0.02 to 250.00 Ω in steps of 0.01
Impedance accuracy: ±5%
Angle: 5 to 50° in steps of 1
Angle accuracy: ±2°
Pickup delay: 0 to 65.535 s in steps of 0.001
Reset delay: 0 to 65.535 s in steps of 0.001
Time accuracy: ±3% or ±4 ms, whichever is greater
Operate time: < 30 ms at 60 Hz
OPEN POLE DETECTOR
Detects an open pole condition, monitoring breaker auxiliary con-
tacts, the current in each phase and optional voltages on the line
Current pickup level: 0.000 to 30.000 pu in steps of 0.001
Line capacitive reactances (X , X
C1
steps of 0.1
Remote current pickup level: 0.000 to 30.000 pu in steps of 0.001
Current dropout level: pickup + 3%, not less than 0.05 pu
): 300.0 to 9999.9 sec. Ω in
C0
GE Multilin