GE Multilin
C70 Capacitor Bank Protection and Control System
2-11
2 PRODUCT DESCRIPTION
2.2 SPECIFICATIONS
2
PHASE UNDERVOLTAGE
Pickup level:
0.000 to 3.000 pu in steps of 0.001
Dropout level:
102 to 103% of pickup
Level accuracy:
±0.5% of reading from 10 to 208 V
Curve shapes:
GE IAV Inverse;
Definite Time (0.1s base curve)
Curve multiplier:
Time dial = 0.00 to 600.00 in steps of
0.01
Timing accuracy:
Operate at < 0.90
×
pickup
±3.5% of operate time or ±4 ms (which-
ever is greater)
BANK OVERVOLTAGE
Operation:
per phase, 3 stages of definite-time, 1
stage of inverse-time
Application:
grounded and ungrounded banks
Number of elements:
1 per VT bank, maximum of 3
Pickup threshold:
0.800 to 2.000 pu of bus voltage in steps
of 0.001, per phase
Pickup level accuracy:
0.002 pu for operating voltage <70 V
Hysteresis:
0.02 pu
Pickup delay:
0 to 600.00 s in steps of 0.01
Curve:
any user-programmable FlexCurve
Time accuracy:
±3% or ±35 ms, whichever is greater
Operate time:
< 35 ms at 60 Hz
PHASE OVERVOLTAGE
Voltage:
Phasor only
Pickup level:
0.000 to 3.000 pu in steps of 0.001
Dropout level:
97 to 98% of pickup
Level accuracy:
±0.5% of reading from 10 to 208 V
Pickup delay:
0.00 to 600.00 in steps of 0.01 s
Operate time:
<
30 ms at 1.10
×
pickup at 60 Hz
Timing accuracy:
±3% or ±4 ms (whichever is greater)
NEUTRAL OVERVOLTAGE
Pickup level:
0.000 to 3.000 pu in steps of 0.001
Dropout level:
97 to 98% of pickup
Level accuracy:
±0.5% of reading from 10 to 208 V
Pickup delay:
0.00 to 600.00 s in steps of 0.01 (definite
time) or user-defined curve
Reset delay:
0.00 to 600.00 s in steps of 0.01
Timing accuracy:
±3% or ±20 ms (whichever is greater)
Operate time:
<
30 ms at 1.10
×
pickup at 60 Hz
AUXILIARY OVERVOLTAGE
Pickup level:
0.000 to 3.000 pu in steps of 0.001
Dropout level:
97 to 98% of pickup
Level accuracy:
±0.5% of reading from 10 to 208 V
Pickup delay:
0 to 600.00 s in steps of 0.01
Reset delay:
0 to 600.00 s in steps of 0.01
Timing accuracy:
±3% of operate time or ±4 ms
(whichever is greater)
Operate time:
<
30 ms at 1.10
×
pickup at 60 Hz
NEGATIVE SEQUENCE OVERVOLTAGE
Pickup level:
0.000 to 1.250 pu in steps of 0.001
Dropout level:
97 to 98% of pickup
Level accuracy:
±0.5% of reading from 10 to 208 V
Pickup delay:
0 to 600.00 s in steps of 0.01
Reset delay:
0 to 600.00 s in steps of 0.01
Time accuracy:
±3% or ±20 ms, whichever is greater
Operate time:
< 30 ms at 1.10
×
pickup at 60 Hz
BREAKER FAILURE
Mode:
1-pole, 3-pole
Current supervision:
phase, neutral current
Current supv. pickup:
0.001 to 30.000 pu in steps of 0.001
Current supv. dropout:
97 to 98% of pickup
Current supv. accuracy:
0.1 to 2.0
×
CT rating: ±0.75% of reading or ±2% of rated
(whichever is greater)
above 2
×
CT rating:
±2.5% of reading
BREAKER FLASHOVER
Operating quantity:
phase current, voltage and voltage differ-
ence
Pickup level voltage:
0 to 1.500 pu in steps of 0.001
Dropout level voltage:
97 to 98% of pickup
Pickup level current:
0 to 1.500 pu in steps of 0.001
Dropout level current:
97 to 98% of pickup
Level accuracy:
±0.5% or ±0.1% of rated, whichever is
greater
Pickup delay:
0 to 65.535 s in steps of 0.001
Time accuracy:
±3% or ±42 ms, whichever is greater
Operate time:
<42 ms at 1.10
×
pickup at 60 Hz
BREAKER RESTRIKE
Principle:
detection of high-frequency overcurrent
condition ¼ cycle after breaker opens
Availability:
one per CT/VT module (not including 8Z
modules)
Pickup level:
0.1 to 2.00 pu in steps of 0.01
Reset delay:
0.000 to 65.535 s in steps of 0.001
TRIP BUS (TRIP WITHOUT FLEXLOGIC™)
Number of elements:
6
Number of inputs:
16
Operate time:
<2 ms at 60 Hz
Time accuracy:
±3% or 10 ms, whichever is greater
Summary of Contents for UR Series C70
Page 2: ......
Page 10: ...x C70 Capacitor Bank Protection and Control System GE Multilin TABLE OF CONTENTS ...
Page 344: ...5 220 C70 Capacitor Bank Protection and Control System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 586: ...D 10 C70 Capacitor Bank Protection and Control System GE Multilin D 1 OVERVIEW APPENDIXD D ...
