Protection Elements - GE L60 Instruction Manual

2 PRODUCT DESCRIPTION
2.2SPECIFICATIONSSPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
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
NOTE
power system devices via communications or different output contacts. If not specified, operate times are given
here 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 × Z – V : 0.005 to 15.000 pu in steps of 0.001
2 2
dI / dt: 0.01 to 5.00 pu in steps of 0.01
2
dI / dt: 0.01 to 5.00 pu in steps of 0.01
1
I overcurrent: 0.20 to 5.00 pu in steps of 0.01
1
I overcurrent: 0.02 to 5.00 pu in steps of 0.01
2
Fault detector high:
Mixed signal overcurrent: 0.10 to 15.00 pu in steps of 0.01
I × Z – V : 0.005 to 15.000 pu in steps of 0.001
2 2
dI / dt: 0.01 to 5.00 pu in steps of 0.01
2
dI / dt: 0.01 to 5.00 pu in steps of 0.01
1
I overcurrent: 0.50 to 5.00 pu in steps of 0.01
1
I overcurrent: 0.05 to 5.00 pu in steps of 0.01
2
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 kΩ in steps of
0.001
GE Multilin
PHASE DISTANCE
Characteristic:
Number of zones:
Directionality:
Reach (secondary Ω):
Reach accuracy:
Distance:
Characteristic angle:
Comparator limit angle: 30 to 90° in steps of 1
Directional supervision:
Characteristic angle:
Limit angle:
Right blinder (Quad only):
Reach:
Characteristic angle:
Left Blinder (Quad only):
Reach:
Characteristic angle:
Time delay:
Timer accuracy:
Current supervision:
Level:
Pickup:
Dropout:
Memory duration:
VT location:
CT location:
Voltage supervision pickup (series compensation applications):
Operation time:
Reset time:
L60 Line Phase Comparison System
2.2 SPECIFICATIONS

2.2.1 PROTECTION ELEMENTS

mho (memory polarized or offset) or
quad (memory polarized or non-direc-
tional), selectable individually per zone
3
forward, reverse, or non-directional
0.02 to 500.00 Ω in steps of 0.01
±5% including the effect of CVT tran-
sients up to an SIR of 30
30 to 90° in steps of 1
30 to 90° in steps of 1
30 to 90° in steps of 1
0.02 to 500 Ω in steps of 0.01
60 to 90° in steps of 1
0.02 to 500 Ω in steps of 0.01
60 to 90° in steps of 1
0.000 to 65.535 s in steps of 0.001
±3% of operate time or ±1/4 cycle
(whichever is greater)
line-to-line current
0.050 to 30.000 pu in steps of 0.001
97 to 98%
5 to 25 cycles in steps of 1
all delta-wye and wye-delta transformers
all delta-wye and wye-delta transformers
0 to 5.000 pu in steps of 0.001
1 to 1.5 cycles (typical)
1 power cycle (typical)
2
2-9