Monitoring - GE T60 Instruction Manual

2 PRODUCT DESCRIPTION
OSCILLOGRAPHY
Maximum records: 64
Sampling rate: 64 samples per power cycle
Triggers: Any element pickup, dropout or operate
Digital input change of state
Digital output change of state
FlexLogic™ equation
Data: AC input channels
Element state
Digital input state
Digital output state
Data storage: In non-volatile memory
EVENT RECORDER
Capacity: 1024 events
Time-tag: to 1 microsecond
Triggers: Any element pickup, dropout or operate
Digital input change of state
Digital output change of state
Self-test events
Data storage: In non-volatile memory
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: ±1.0% of reading at
–0.8 < PF ≤ –1.0 and 0.8 < PF ≤ 1.0
REACTIVE POWER (VARS)
Accuracy: ±1.0% of reading at –0.2 ≤ PF ≤ 0.2
APPARENT POWER (VA)
Accuracy: ±1.0% of reading
WATT-HOURS (POSITIVE AND NEGATIVE)
Accuracy: ±2.0% of reading
±0 to 2 × 10
Range:
Parameters: 3-phase only
Update rate: 50 ms
VAR-HOURS (POSITIVE AND NEGATIVE)
Accuracy: ±2.0% of reading
±0 to 2 × 10
Range:
Parameters: 3-phase only
Update rate: 50 ms
GE Multilin
Courtesy of NationalSwitchgear.com
9
MWh
9
Mvarh
T60 Transformer Management Relay
USER-PROGRAMMABLE FAULT REPORT
Number of elements: 2
Pre-fault trigger: any FlexLogic™ operand
Fault trigger: any FlexLogic™ operand
Recorder quantities: 32 (any FlexAnalog value)
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
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: ±0.001 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%
2.2 SPECIFICATIONS

2.2.3 MONITORING

2
2.2.4 METERING
(
fundamental fre-
1
1
1
1
2-11