GE UR Series C70, Instruction Manual

Page: 43 / 614

GE Multilin C70 Capacitor Bank Protection and Control System 2-13
2 PRODUCT DESCRIPTION 2.2 SPECIFICATIONS
2
2.2.3 MONITORING
OSCILLOGRAPHY
Maximum records: 64
Sampling rate: 64 samples per power cycle
Triggers: any element pickup, dropout, or operate;
digital input change of state; digital out-
put change of state; FlexLogic™ equa-
tion
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 out-
put change of state; self-test events
Data storage: in non-volatile memory
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
2.2.4 METERING
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
CURRENT HARMONICS
Harmonics: 2nd to 25th harmonic: per phase, dis-
played as a % of f
1
(
fundamental fre-
quency phasor)
THD: per phase, displayed as a % of f
1
Accuracy:
HARMONICS: 1. f
1
> 0.4pu: (0.20% + 0.035% / harmonic) of
reading or 0.15% of 100%, whichever is
greater
2. f
1
< 0.4pu: as above plus %error of f
1
THD: 1. f
1
> 0.4pu: (0.25% + 0.035% / harmonic) of
reading or 0.20% of 100%, whichever is
greater
2. f
1
< 0.4pu: as above plus %error of f
1
VOLTAGE HARMONICS
Harmonics: 2nd to 25th harmonic: per phase, dis-
played as a % of f
1
(
fundamental fre-
quency phasor)
THD: per phase, displayed as a % of f
1
Accuracy:
HARMONICS: 1. f
1
> 0.4pu: (0.20% + 0.035% / harmonic) of
reading or 0.15% of 100%, whichever is
greater
2. f
1
< 0.4pu: as above plus %error of f
1
THD: 1. f
1
> 0.4pu: (0.25% + 0.035% / harmonic) of
reading or 0.20% of 100%, whichever is
greater
2. f
1
< 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)