Metering - GE G30 Instruction Manual
Ur series generator protection system
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Also See for G30:
- Instruction manual (698 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (696 pages)
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2 PRODUCT DESCRIPTION
DATA LOGGER
Number of channels:
1 to 16
Parameters:
any available analog actual value
Sampling rate:
15 to 3600000 ms in steps of 1
Trigger:
any FlexLogic operand
Mode:
continuous or triggered
Storage capacity:
(NN is dependent on memory)
1-second rate:
01 channel for NN days
16 channels for NN days
60-minute rate:
01 channel for NN days
16 channels for NN days
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 (WATTS)
Accuracy at 0.1 to 1.5 x
CT rating and 0.8 to
1.2 x VT rating:
±1.0% of reading at –1.0 ≤ PF< –0.8
REACTIVE POWER (VARS)
Accuracy at 0.1 to 1.5 x
CT rating and 0.8 to
±1.0% of reading at –0.2 ≤ PF ≤ 0.2
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:
±1.0% of reading
WATT-HOURS (POSITIVE AND NEGATIVE)
Accuracy:
±2.0% of reading
Range:
±0 to 1 × 10
Parameters:
three-phase only
Update rate:
50 ms
VAR-HOURS (POSITIVE AND NEGATIVE)
Accuracy:
±2.0% of reading
±0 to 1 × 10
Range:
Parameters:
three-phase only
Update rate:
50 ms
GE Multilin
↓
6
MWh
6
Mvarh
G30 Generator Protection System
CURRENT HARMONICS
Harmonics:
2nd to 25th harmonic: per phase, dis-
played as a % of f
quency phasor)
THD: per phase, displayed as a % of f
Accuracy:
HARMONICS:
1. f
> 0.4pu: (0.20% + 0.035% / harmonic) of
1
reading or 0.15% of 100%, whichever is
greater
2. f
< 0.4pu: as above plus %error of f
1
THD:
1. f
> 0.4pu: (0.25% + 0.035% / harmonic) of
1
reading or 0.20% of 100%, whichever is
greater
2. f
< 0.4pu: as above plus %error of f
1
VOLTAGE HARMONICS
Harmonics:
2nd to 25th harmonic: per phase, dis-
played as a % of f
quency phasor)
THD: per phase, displayed as a % of f
Accuracy:
HARMONICS:
1. f
> 0.4pu: (0.20% + 0.035% / harmonic) of
1
reading or 0.15% of 100%, whichever is
greater
2. f
< 0.4pu: as above plus %error of f
1
THD:
1. f
> 0.4pu: (0.25% + 0.035% / harmonic) of
1
reading or 0.20% of 100%, whichever is
greater
2. f
< 0.4pu: as above plus %error of f
1
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)
2.2 SPECIFICATIONS
2
2.2.4 METERING
(
fundamental fre-
1
1
1
1
(
fundamental fre-
1
1
1
1
2-17
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