GE Multilin
C70 Capacitor Bank Protection and Control System
2-19
2 PRODUCT DESCRIPTION
2.4 SPECIFICATIONS
2
NEUTRAL CURRENT UNBALANCE
Auto-setting:
on demand from keypad
Number of elements:
1 per CT bank, to a maximum of 3
Inherent unbalance factor: magnitude of 0 to 0.1500 in steps of
0.0001, angle of 0 to 359° in steps of 1
Number of trip/alarm stages: 4, with individual timers per stage
Pickup threshold:
0.001 to 5.000 pu of ground input CT in
steps of 0.001
Pickup level accuracy:
0.002 pu for <1 pu current and < 20 CT
mismatch between phase and neutral
CT
Hysteresis:
3% or 0.001 pu, whichever is greater
Slope:
0.0 to 10.0% in steps of 0.1
Pickup delay:
0 to 600.00 s in steps of 0.01
Timer accuracy:
±3% of operate time or ±35 ms, which-
ever is greater
Operate time:
<35 ms at 60 Hz
NEUTRAL VOLTAGE UNBALANCE
Operation:
compensated for inherent bank and sys-
tem unbalance
Auto-setting:
on demand from keypad
Number of elements:
1 per VT bank, maximum of 3
Compensating factor:
0.7500 to 1.2500 in steps of 0.0001
Number of trip/alarm stages: 4 with individual timers
Pickup threshold:
0.001 to 1.000 pu of nominal of the bank
neutral point VT in steps of 0.001
Slope:
0 to 10% in steps of 0.1
Pickup level accuracy:
0.003 pu for <10 VT mismatch between
phase and neutral VT
Hysteresis:
3% or 0.001 pu whichever is greater
Pickup delay:
0 to 600.00 s in steps of 0.01
Timer accuracy:
±3% of operate time or ±35 ms, which-
ever is greater
Operate time:
<35 ms at 60 Hz
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
Curve timing accuracy
at <0.90 x pickup:
±3.5% of operate time or ±1/2 cycle
(whichever is greater) from pickup to
operate
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
Timer accuracy:
±3% of operate time or ±35 ms, which-
ever 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
Timer accuracy:
±3% of operate time or ±1/4 cycle
(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
Curve timing accuracy
at >1.1 x pickup:
±3.5% of operate time or ±1 cycle
(whichever is greater) from pickup to
operate
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
Timer accuracy:
±3% of operate time or ±1/4 cycle
(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
Timer accuracy:
±3% of operate time or ±20 ms, which-
ever is greater
Operate time:
<30 ms at 1.10
×
pickup at 60 Hz
Содержание C70
Страница 10: ...x C70 Capacitor Bank Protection and Control System GE Multilin TABLE OF CONTENTS ...
Страница 30: ...1 20 C70 Capacitor Bank Protection and Control System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Страница 394: ...5 270 C70 Capacitor Bank Protection and Control System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 452: ...8 18 C70 Capacitor Bank Protection and Control System GE Multilin 8 1 OVERVIEW 8 THEORY OF OPERATION 8 ...
Страница 474: ...9 22 C70 Capacitor Bank Protection and Control System GE Multilin 9 4 SETTING EXAMPLE 9 APPLICATION OF SETTINGS 9 ...
Страница 486: ...10 12 C70 Capacitor Bank Protection and Control System GE Multilin 10 6 DISPOSAL 10 MAINTENANCE 10 ...
Страница 630: ...B 110 C70 Capacitor Bank Protection and Control System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Страница 676: ...E 10 C70 Capacitor Bank Protection and Control System GE Multilin E 1 OVERVIEW APPENDIX E E ...
Страница 688: ...F 12 C70 Capacitor Bank Protection and Control System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Страница 698: ...H 8 C70 Capacitor Bank Protection and Control System GE Multilin H 3 WARRANTY APPENDIX H H ...