Metering - GE L90 Instruction Manual

CHAPTER 2: PRODUCT DESCRIPTION
TVE (total vector error):
Triggering:
Reporting rate:
Number of clients:
AC ranges:
Network reporting format:
Network reporting style:
Post-filtering:
Calibration:

2.6.4 Metering

RMS CURRENT: PHASE, NEUTRAL, AND GROUND
Accuracy at
0.1 to 2.0 × CT rating:
> 2.0 × CT rating:
RMS VOLTAGE
Accuracy:
REAL POWER (WATTS)
Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:
REACTIVE POWER (VARS)
Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:
APPARENT POWER (VA)
Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:
WATT-HOURS (POSITIVE AND NEGATIVE)
Accuracy:
Range:
Parameters:
Update rate:
VAR-HOURS (POSITIVE AND NEGATIVE)
Accuracy:
Range:
Parameters:
Update rate:
CURRENT HARMONICS
Harmonics:
Accuracy:
HARMONICS:
THD:
VOLTAGE HARMONICS
Harmonics:
Accuracy:
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
<1%
frequency, voltage, current, power, rate of change of frequency, user-defined
1, 2, 5, 10, 12, 15, 20, 25, 30, 50, or 60 times per second for P and M class, and 100 or 120 times
per second for P class only
one over TCP/IP port and one over UDP/IP per aggregator
as indicated in appropriate specification sections
16-bit integer (for IEEE C37.118) or 32-bit IEEE floating point numbers
rectangular (real and imaginary for IEEE C37.188) or polar (magnitude and angle) coordinates
none, 3-point, 5-point, 7-point
±5° (angle) and ±5% (magnitude)
±0.25% of reading or ±0.1% of rated (whichever is greater)
±1.0% of reading
±0.5% of reading from 10 to 208 V
±1.0% of reading at –1.0 ≤ PF < –0.8 and 0.8 < PF ≤ 10
±1.0% of reading at –0.2 ≤ PF ≤ 0.2
±1.0% of reading
±2.0% of reading
6
±0 to 1 × 10 MWh
three-phase only
50 ms
±2.0% of reading
6
±0 to 1 × 10 Mvarh
three-phase only
50 ms
2nd to 25th harmonic: per phase, displayed as a % of f
THD: per phase, displayed as a % of f
1. f > 0.4pu: (0.20% + 0.035% / harmonic) of reading or 0.15% of 100%, whichever is greater
1
2. f < 0.4pu: as above plus %error of f
1
1. f > 0.4pu: (0.25% + 0.035% / harmonic) of reading or 0.20% of 100%, whichever is greater
1
2. f < 0.4pu: as above plus %error of f
1
2nd to 25th harmonic: per phase, displayed as a % of f
THD: per phase, displayed as a % of f
(
fundamental frequency phasor)
1
1
1
1
(
fundamental frequency phasor)
1
1
SPECIFICATIONS
2
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