Monitoring; Metering - GE C70 Instruction Manual
Capacitor bank protection and control system ur series
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- Instruction manual (702 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (546 pages)
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2 PRODUCT DESCRIPTION
LED TEST
Initiation:
from any contact input or user-program-
mable condition
Number of tests:
3, interruptible at any time
Duration of full test:
approximately 3 minutes
Test sequence 1:
all LEDs on
Test sequence 2:
all LEDs off, one LED at a time on for 1 s
Test sequence 3:
all LEDs on, one LED at a time off for 1 s
USER-DEFINABLE DISPLAYS
Number of displays:
16
2 × 20 alphanumeric characters
Lines of display:
Parameters:
up to 5, any Modbus register addresses
Invoking and scrolling:
keypad, or any user-programmable con-
dition, including pushbuttons
CONTROL PUSHBUTTONS
Number of pushbuttons: 7
Operation:
drive FlexLogic operands
USER-PROGRAMMABLE PUSHBUTTONS (OPTIONAL)
Number of pushbuttons: 12 (standard faceplate);
16 (enhanced faceplate)
Mode:
self-reset, latched
Display message:
2 lines of 20 characters each
Drop-out timer:
0.00 to 60.00 s in steps of 0.05
Autoreset timer:
0.2 to 600.0 s in steps of 0.1
Hold timer:
0.0 to 10.0 s in steps of 0.1
OSCILLOGRAPHY
Maximum records:
64
Sampling rate:
64 samples per power cycle
Triggers:
any element pickup, dropout, or operate;
contact input change of state; contact
output change of state; FlexLogic equa-
tion
Data:
AC input channels; element state; con-
tact input state; contact 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;
contact input change of state; contact
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
GE Multilin
C70 Capacitor Bank Protection and Control System
SELECTOR SWITCH
Number of elements:
2
Upper position limit:
1 to 7 in steps of 1
Selecting mode:
time-out or acknowledge
Time-out timer:
3.0 to 60.0 s in steps of 0.1
Control inputs:
step-up and 3-bit
Power-up mode:
restore from non-volatile memory or syn-
chronize to a 3-bit control input or synch/
restore mode
TIME OF DAY TIMERS
Number of timers:
5
Setting resolution:
1 minute
DIGITAL ELEMENTS
Number of elements:
48
Operating signal:
any FlexLogic operand
Pickup delay:
0.000 to 999999.999 s in steps of 0.001
Dropout delay:
0.000 to 999999.999 s in steps of 0.001
Timing accuracy:
±3% or ±4 ms, whichever is greater
USER-PROGRAMMABLE FAULT REPORT
Number of elements:
2
Pre-fault trigger:
any FlexLogic operand
Fault trigger:
any FlexLogic operand
Recorder quantities:
32 (any FlexAnalog
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 VOLTAGE
Accuracy:
±0.5% of reading from 10 to 208 V
2.4 SPECIFICATIONS
2.4.3 MONITORING
TM
value)
↓
2.4.4 METERING
2-21
2
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