Metering; Inputs - GE C60 Instruction Manual

2 PRODUCT DESCRIPTION
FAULT LOCATOR
Method: Single-ended
Maximum accuracy if: Fault resistance is zero or fault currents
from all line terminals are in phase
Relay Accuracy: ±1.5% (V > 10 V, I > 0.1 pu)
Worst-case Accuracy:
VT + (user data)
%error
CT + (user data)
%error
Z + (user data)
Line%error
METHOD +(Chapter 6)
%error
RELAY ACCURACY
%error
RMS CURRENT: PHASE, NEUTRAL, AND GROUND
Accuracy at
0.1 to 2.0 × CT rating: ±0.25% of reading or ±0.1% of rated
(whichever is greater)
> 2.0 × CT rating:
±1.0% of reading
RMS VOLTAGE
Accuracy: ±0.5% of reading from 10 to 208 V
REAL POWER WATT
Accuracy: ±1.0% of reading at
–0.8 < PF ≤ –1.0 and 0.8 < PF ≤ 1.0
REACTIVE POWER VAR
±1.0% of reading at –0.2 ≤ PF ≤ 0.2
Accuracy:
APPARENT POWER VA
Accuracy: ±1.0% of reading
WATT-HOURS (POSITIVE & NEGATIVE)
Accuracy: ±2.0% of reading
±0 to 2 × 10
Range:
Parameters: 3-phase only
Update Rate: 50 ms
AC CURRENT
CT Rated Primary: 1 to 50000 A
CT Rated Secondary: 1 A or 5 A by connection
Nominal Frequency: 20 to 65 Hz
Relay Burden: < 0.2 VA at rated secondary
Conversion Range:
Standard CT Module: 0.02 to 46 × CT rating RMS symmetrical
Sensitive Ground Module:
0.002 to 4.6 × CT rating RMS symmetrical
Current Withstand: 20 ms at 250 times rated
1 sec. at 100 times rated
Cont. at 3 times rated
AC VOLTAGE
VT Rated Secondary: 50.0 to 240.0 V
VT Ratio: 0.1 to 24000.0
Nominal Frequency: 20 to 65 Hz
Relay Burden: < 0.25 VA at 120 V
Conversion Range: 1 to 275 V
Voltage Withstand: cont. at 260 V to neutral
1 min./hr at 420 V to neutral
GE Multilin
+ (1.5%)
9
MWh
C60 Breaker Management Relay
VAR-HOURS (POSITIVE & NEGATIVE)
Accuracy: ±2.0% of reading
±0 to 2 × 10
Range:
Parameters: 3-phase only
Update Rate: 50 ms
FREQUENCY
Accuracy at
V = 0.8 to 1.2 pu: ±0.01 Hz (when voltage signal is used
for frequency measurement)
I = 0.1 to 0.25 pu: ±0.05 Hz
I > 0.25 pu ±0.02 Hz (when current signal is used for
frequency measurement)
DEMAND
Measurements: Phases A, B, and C present and maxi-
mum measured currents
3-Phase Power (P, Q, and S) present
and maximum measured currents
Accuracy: ±2.0%
CONTACT INPUTS
1000 Ω maximum
Dry Contacts:
Wet Contacts: 300 V DC maximum
Selectable Thresholds: 17 V, 33 V, 84 V, 166 V
Recognition Time: < 1 ms
Debounce Timer: 0.0 to 16.0 ms in steps of 0.5
IRIG-B INPUT
Amplitude Modulation: 1 to 10 V pk-pk
DC Shift: TTL
Input Impedance: 22 kΩ
DCMA INPUTS
Current Input (mA DC): 0 to –1, 0 to +1, –1 to +1, 0 to 5, 0 to 10,
0 to 20, 4 to 20 (programmable)
379 Ω ±10%
Input Impedance:
Conversion Range: –1 to + 20 mA DC
Accuracy: ±0.2% of full scale
Type: Passive
2.2 SPECIFICATIONS

2.2.4 METERING

9
Mvarh

2.2.5 INPUTS

2-7
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