GE Multilin L60, Instruction Manual

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2-14 L60 Line Phase Comparison System GE Multilin
2.3 SPECIFICATIONS 2 PRODUCT DESCRIPTION
2
2.3SPECIFICATIONS SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
2.3.1 PROTECTION ELEMENTS
The operating times include the activation time of a trip rated form-A output contact unless otherwise indicated.
FlexLogic operands of a given element are 4 ms faster. Take this 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. If not specified, the operate times given
here are for a 60 Hz system at nominal system frequency. Operate times for a 50 Hz system are 1.2 times longer.
87PC SCHEME
Signal selection: mixed I_2 – K × I_1 ( K = 0.00 to 0.25 in
steps of 0.01), or 3I_0
Angle reference: 0 to 360° leading in steps of 1
Fault detector low:
Mixed signal overcurrent: 0.02 to 15.00 pu in steps of 0.01
I
2
× Z – V
2
: 0.005 to 15.000 pu in steps of 0.001
d I
2
/ d t : 0.01 to 5.00 pu in steps of 0.01
d I
1
/ d t : 0.01 to 5.00 pu in steps of 0.01
I
1
overcurrent: 0.20 to 5.00 pu in steps of 0.01
I
2
overcurrent: 0.02 to 5.00 pu in steps of 0.01
Fault detector high:
Mixed signal overcurrent: 0.10 to 15.00 pu in steps of 0.01
I
2
× Z – V
2
: 0.005 to 15.000 pu in steps of 0.001
d I
2
/ d t : 0.01 to 5.00 pu in steps of 0.01
d I
1
/ d t : 0.01 to 5.00 pu in steps of 0.01
I
1
overcurrent: 0.50 to 5.00 pu in steps of 0.01
I
2
overcurrent: 0.05 to 5.00 pu in steps of 0.01
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 com-
pensation
Operate time (typical): ¾ cycle for single phase comparison
½ cycle for dual phase comparison
Trip security: first coincidence or enhanced
Second coincidence timer: 10 to 200 ms in steps of 1
Enhanced stability angle: 40 to 180° in steps of 1
Charging current compensation: 0.100 to 65.535 k

in steps of
0.001
PHASE DISTANCE
Characteristic: mho (memory polarized or offset) or
quad (memory polarized or non-direc-
tional), selectable individually per zone
Number of zones: 3
Directionality: forward, reverse, or non-directional
Reach (secondary

): 0.02 to 500.00

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

in steps of 0.01
Characteristic angle: 60 to 90° in steps of 1
Left Blinder (Quad only):
Reach: 0.02 to 500

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
Timer accuracy: ±3% of operate time or ±1/4 cycle
(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)
NOTE