GE L60, Instruction Manual, Page: 32 / 498

2-8 L60 Line Phase Comparison Relay GE Multilin
2.2 SPECIFICATIONS 2 PRODUCT DESCRIPTION
2
2.2SPECIFICATIONS SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
2.2.1 PROTECTION ELEMENTS
The operating times below include the activation time of a trip rated Form-A output contact unless otherwise indi-
cated. FlexLogic™ operands of a given element are 4 ms faster. This should be taken into account when using
FlexLogic™ to interconnect with other protection or control elements of the relay, building FlexLogic™ equations, or
interfacing with other IEDs or power system devices via communications or different output contacts.
87PC SCHEME
Signal selection: Mixed I_2 - K*I_1 (K = 0.00 to 0.25 in
steps of 0.01), or 3I_0
Fault detector low: 0.02 to 15.00 pu in steps of 0.01
Fault detector high: 0.1 to 15.0 pu in steps of 0.1
Signal symmetry
adjustment: –5.0 to 5.0 ms in steps of 0.1
Channel delay
adjustment: 0.000 to 30.00 ms in steps of 0.001
Channel adjustments: Channel delay and signal symmetry
compensation
Operate time (typical): 3/4 cycle for single phase comparison
1/2 cycle for dual phase comparison
PHASE DISTANCE
Characteristic: Mho (memory polarized or offset) or
Quad (memory polarized or non-direc-
tional)
Number of zones: 3
Directionality: forward, reverse, or non-directional
Reach (secondary Ω ): 0.02 to 500.00 Ω in steps of 0.01
Reach accuracy: ±5% including the effect of CVT tran-
sients up to an SIR of 30
Distance:
Characteristic angle: 30 to 90° in steps of 1
Comparator limit angle: 30 to 90° in steps of 1
Directional supervision:
Characteristic angle: 30 to 90° in steps of 1
Limit angle: 30 to 90° in steps of 1
Right blinder (Quad only):
Reach: 0.02 to 500 Ω in steps of 0.01
Characteristic angle: 60 to 90° in steps of 1
Left Blinder (Quad only):
Reach: 0.02 to 500 Ω in steps of 0.01
Characteristic angle: 60 to 90° in steps of 1
Time delay: 0.000 to 65.535 s in steps of 0.001
Timing accuracy: ±3% or 4 ms, whichever is greater
Current supervision:
Level: line-to-line current
Pickup: 0.050 to 30.000 pu in steps of 0.001
Dropout: 97 to 98%
Memory duration: 5 to 25 cycles in steps of 1
VT location: all delta-wye and wye-delta transformers
CT location: all delta-wye and wye-delta transformers
Voltage supervision pickup (series compensation applications):
0 to 5.000 pu in steps of 0.001
Operation time: 1 to 1.5 cycles (typical)
Reset time: 1 power cycle (typical)
GROUND DISTANCE
Characteristic: Mho (memory polarized or offset) or
Quad (memory polarized or non-direc-
tional)
Reactance polarization: negative-sequence or zero-sequence
current
Non-homogeneity angle: –40 to 40° in steps of 1
Number of zones:
3
Directionality: forward, reverse, or non-directional
Reach (secondary Ω ): 0.02 to 500.00 Ω in steps of 0.01
Reach accuracy: ±5% including the effect of CVT tran-
sients up to an SIR of 30
Distance characteristic angle: 30 to 90° in steps of 1
Distance comparator limit angle: 30 to 90° in steps of 1
Directional supervision:
Characteristic angle: 30 to 90° in steps of 1
Limit angle: 30 to 90° in steps of 1
Zero-sequence compensation
Z0/Z1 magnitude: 0.00 to 10.00 in steps of 0.01
Z0/Z1 angle: –90 to 90° in steps of 1
Zero-sequence mutual compensation
Z0M/Z1 magnitude: 0.00 to 7.00 in steps of 0.01
Z0M/Z1 angle: –90 to 90° in steps of 1
Right blinder (Quad only):
Reach: 0.02 to 500 Ω in steps of 0.01
Characteristic angle: 60 to 90° in steps of 1
Left blinder (Quad only):
Reach: 0.02 to 500 Ω in steps of 0.01
Characteristic angle: 60 to 90° in steps of 1
Time delay: 0.000 to 65.535 s in steps of 0.001
Timing accuracy: ±3% or 4 ms, whichever is greater
Current supervision:
Level: neutral current (3I_0)
Pickup: 0.050 to 30.000 pu in steps of 0.001
Dropout: 97 to 98%
Memory duration: 5 to 25 cycles in steps of 1
Voltage supervision pickup (series compensation applications):
0 to 5.000 pu in steps of 0.001
Operation time: 1 to 1.5 cycles (typical)
Reset time: 1 power cycle (typical)
LINE PICKUP
Phase IOC: 0.000 to 30.000 pu
Undervoltage pickup: 0.000 to 3.000 pu
Overvoltage delay: 0.000 to 65.535 s
NOTE