GE UR series, Instruction Manual

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GE Multilin L60 Line Phase Comparison System 2-9
2 PRODUCT DESCRIPTION 2.2 SPECIFICATIONS
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
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
Ω
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
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)
NOTE