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2.2 SPECIFICATIONS
RMS CURRENT: PHASE, NEUTRAL, AND GROUND
Accuracy at
0.1 to 2.0 × CT rating: ±0.25% of reading or ±0.1% of rated
> 2.0 × CT rating:
2
RMS VOLTAGE
Accuracy:
REAL POWER (WATTS)
Accuracy:
REACTIVE POWER (VARS)
Accuracy:
APPARENT POWER (VA)
Accuracy:
WATT-HOURS (POSITIVE AND NEGATIVE)
Accuracy:
Range:
Parameters:
Update rate:
AC CURRENT
CT rated primary:
CT rated secondary:
Nominal frequency:
Relay burden:
Conversion range:
Standard CT:
Sensitive Ground CT module:
0.002 to 4.6 × CT rating RMS symmetrical
Current withstand:
AC VOLTAGE
VT rated secondary:
VT ratio:
Nominal frequency:
Relay burden:
Conversion range:
Voltage withstand:
CONTACT INPUTS
Dry contacts:
Wet contacts:
Selectable thresholds:
Tolerance:
Contacts per common return: 4
Recognition time:
Debounce time:
Continuous current draw:3 mA (when energized)
2-8
(whichever is greater)
±1.0% of reading
±0.5% of reading from 10 to 208 V
±1.0% of reading at
–0.8 < PF ≤ –1.0 and 0.8 < PF ≤ 1.0
±1.0% of reading at –0.2 ≤ PF ≤ 0.2
±1.0% of reading
±2.0% of reading
±0 to 1 × 10
6
MWh
three-phase only
50 ms
1 to 50000 A
1 A or 5 A by connection
20 to 65 Hz
< 0.2 VA at rated secondary
0.02 to 46 × CT rating RMS symmetrical
20 ms at 250 times rated
1 sec. at 100 times rated
continuous at 3 times rated
50.0 to 240.0 V
1.00 to 24000.00
20 to 65 Hz
< 0.25 VA at 120 V
1 to 275 V
continuous at 260 V to neutral
1 min./hr at 420 V to neutral
1000 Ω maximum
300 V DC maximum
17 V, 33 V, 84 V, 166 V
±10%
< 1 ms
0.0 to 16.0 ms in steps of 0.5
N60 Network Stability and Synchrophasor Measurement System
2 PRODUCT DESCRIPTION
VAR-HOURS (POSITIVE AND NEGATIVE)
Accuracy:
±2.0% of reading
±0 to 1 × 10
Range:
Parameters:
three-phase only
Update rate:
50 ms
FREQUENCY
Accuracy at
V = 0.8 to 1.2 pu:
±0.001 Hz (when voltage signal is used
for frequency measurement)
I = 0.1 to 0.25 pu:
±0.05 Hz
I > 0.25 pu:
±0.001 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 WITH AUTO-BURNISHING
1000 Ω maximum
Dry contacts:
Wet contacts:
300 V DC maximum
Selectable thresholds:
17 V, 33 V, 84 V, 166 V
Tolerance:
±10%
Contacts per common return: 2
Recognition time:
< 1 ms
Debounce time:
0.0 to 16.0 ms in steps of 0.5
Continuous current draw:3 mA (when energized)
Auto-burnish impulse current: 50 to 70 mA
Duration of auto-burnish impulse: 25 to 50 ms
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
RTD INPUTS
100 Ω Platinum, 100 & 120 Ω Nickel, 10
Types (3-wire):
Ω Copper
Sensing current:
5 mA
Range:
–50 to +250°C
Accuracy:
±2°C
Isolation:
36 V pk-pk
IRIG-B INPUT
Amplitude modulation:
1 to 10 V pk-pk
DC shift:
TTL
Input impedance:
22 kΩ
Isolation:
2 kV
2.2.4 METERING
6
Mvarh
2.2.5 INPUTS
GE Multilin
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