Metering - GE T60 Instruction Manual

2.3 SPECIFICATIONS
PHASOR MEASUREMENT UNIT
Output format:
Number of channels:
TVE (total vector error)
Triggering:
2
Reporting rate:
Number of clients:
AC ranges:
Network reporting format: 16-bit integer (for IEEE C37.118) or 32-
Network reporting style: rectangular (real and imaginary for IEEE
Post-filtering:
Calibration:
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:
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:
2-26
per IEEE C37.118 or IEC 61850-90-5
standard
14 synchrophasors, 8 analogs, 16 digi-
tals
<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 specifications
sections
bit IEEE floating point numbers
C37.188) or polar (magnitude and angle)
coordinates
none, 3-point, 5-point, 7-point
±5° (angle) and ±5% (magnitude)
(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
T60 Transformer Protection 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
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
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%

2.3.4 METERING

6
Mvarh
(
fundamental fre-
1
1
1
1
GE Multilin