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2 PRODUCT DESCRIPTION
2.2SPECIFICATIONSSPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
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
NOTE
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.
VOLTAGE DIFFERENTIAL
Operation:
per phase
Auto-setting:
on demand from keypad, per phase
Number of elements:
1 per VT bank, maximum of 3
Matching factor:
0.5000 to 2000.0000 in steps of 0.0001,
per phase
Number of trip/alarm stages: 4 per phase with individual timers per
stage
Pickup threshold:
0.001 to 1.000 pu of bus voltage in steps
of 0.001
Pickup level accuracy:
0.003 pu
Hysteresis:
3% or 0.0005 pu whichever is greater
Pickup delay:
0 to 600.00 s in steps of 0.01
Time accuracy:
±3% or ±35 ms, whichever is greater
Operate time:
<35 ms at 60 Hz
CAPACITOR CONTROL
Functionality:
contains remote/local and auto/manual
non-volatile latches, collects trip, open
and close input requests and issues out-
puts to control tripping and closing
Closing inhibit delay:
0 to 60 minutes in steps of 1 second
Trip and close seal-in timers: 0 to 60.000 s in steps of 0.001
AUTOMATIC VOLTAGE REGULATOR
Number of elements:
1 per CT/VT module, maximum of 3
Modes:
voltage with load drop compensation or
reactive power with power factor limit
Minimum voltage supervision: 0.500 to 1.500 pu in steps of 0.001
Close voltage level:
0.750 to 1.500 pu in steps of 0.001
Open voltage level:
0.750 to 1.500 pu in steps of 0.001
Voltage pickup accuracy: ±0.5% of setting from 10 to 208 V
Close reactive power level: –1.50 to 1.50 pu in steps of 0.01
Open reactive power level: –1.50 to 1.50 pu in steps of 0.01
Power pickup accuracy: ±0.05 pu
Power factor limit
0.50 to 1.00 in steps of 0.01
Power factor accuracy:
±0.05
Hysteresis:
0.02 pu (voltage); 0.05 pu (vars)
Close delay:
0 to 65.353 s in steps of 0.001
Open delay:
0 to 65.353 s in steps of 0.001
Time accuracy:
±3% or ±20 ms, whichever is greater
Operate time:
<80 ms at 60 Hz
GE Multilin
C70 Capacitor Bank Protection and Control System
2.2.1 PROTECTION ELEMENTS
PHASE/NEUTRAL/GROUND TOC
Current:
Phasor or RMS
Pickup level:
0.000 to 30.000 pu in steps of 0.001
Dropout level:
97% to 98% of pickup
Level accuracy:
for 0.1 to 2.0 × CT:
±0.5% of reading or ±0.4% of rated
(whichever is greater)
for > 2.0 × CT:
±1.5% of reading > 2.0 × CT rating
Curve shapes:
IEEE Moderately/Very/Extremely
Inverse; IEC (and BS) A/B/C and Short
Inverse; GE IAC Inverse, Short/Very/
Extremely Inverse; I
(programmable); Definite Time (0.01 s
base curve)
Curve multiplier:
Time Dial = 0.00 to 600.00 in steps of
0.01
Reset type:
Instantaneous/Timed (per IEEE)
Operate at > 1.03 × actual pickup
Timing accuracy:
±3.5% of operate time or ±½ cycle
(whichever is greater)
PHASE/NEUTRAL/GROUND IOC
Pickup level:
0.000 to 30.000 pu in steps of 0.001
Dropout level:
97 to 98% of pickup
Level accuracy:
0.1 to 2.0 × CT rating: ±0.5% of reading or ±0.4% of rated
(whichever is greater)
> 2.0 × CT rating
±1.5% of reading
Overreach:
<2%
Pickup delay:
0.00 to 600.00 s in steps of 0.01
Reset delay:
0.00 to 600.00 s in steps of 0.01
<16 ms at 3 × pickup at 60 Hz
Operate time:
(Phase/Ground IOC)
<20 ms at 3 × pickup at 60 Hz
(Neutral IOC)
Operate at 1.5 × pickup
Timing accuracy:
±3% or ±4 ms (whichever is greater)
2.2 SPECIFICATIONS
2
2
t; FlexCurves™
2-9
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