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GE Multilin
M60 Motor Protection System
5-211
5 SETTINGS
5.6 GROUPED ELEMENTS
5
d) NEUTRAL OVERVOLTAGE
(ANSI 59N, IEC PTOV)
PATH: SETTINGS
GROUPED ELEMENTS
SETTING GROUP 1(6)
VOLTAGE ELEMENTS
NEUTRAL OV1(3)
There are three neutral overvoltage elements available. The neutral overvoltage element can be used to detect asymmetri-
cal system voltage condition due to a ground fault or to the loss of one or two phases of the source. The element responds
to the system neutral voltage (3V_0), calculated from the phase voltages. The nominal secondary voltage of the phase volt-
age channels entered under
SETTINGS
SYSTEM SETUP
AC INPUTS
VOLTAGE BANK
PHASE VT SECONDARY
is the
p.u. base used when setting the pickup level.
The neutral overvoltage element can provide a time-delayed operating characteristic versus the applied voltage (initialized
from FlexCurves A, B, or C) or be used as a definite time element. The
NEUTRAL OV1 PICKUP DELAY
setting applies only if
the
NEUTRAL OV1 CURVE
setting is “Definite time”. The source assigned to this element must be configured for a phase VT.
VT errors and normal voltage unbalance must be considered when setting this element. This function requires the VTs to
be wye-connected.
Figure 5–102: NEUTRAL OVERVOLTAGE1 SCHEME LOGIC
NEUTRAL OV1
NEUTRAL OV1
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
NEUTRAL OV1 SIGNAL
SOURCE: SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4
MESSAGE
NEUTRAL OV1 PICKUP:
0.300 pu
Range: 0.000 to 3.000 pu in steps of 0.001
MESSAGE
NEUTRAL OV1 CURVE:
Definite time
Range: Definite time, FlexCurve A, FlexCurve B,
FlexCurve C
MESSAGE
NEUTRAL OV1 PICKUP:
DELAY: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
NEUTRAL OV1 RESET:
DELAY: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
NEUTRAL OV1 BLOCK:
Off
Range: FlexLogic operand
MESSAGE
NEUTRAL OV1 TARGET:
Self-reset
Range: Self-reset, Latched, Disabled
MESSAGE
NEUTRAL OV1 EVENTS:
Disabled
Range: Disabled, Enabled
827848A3.CDR
FLEXLOGIC OPERANDS
NEUTRAL OV1
FUNCTION:
NEUTRAL OV1 BLOCK:
NEUTRAL OV1 SIGNAL
SOURCE:
NEUTRAL OV1 PICKUP:
NEUTRAL OV1 DPO
NEUTRAL OV1 OP
NEUTRAL OV1 PKP
RUN
AND
SETTING
SETTING
NEUTRAL OV1 RESET
DELAY :
NEUTRAL OV1 PICKUP
DELAY :
SETTING
Enabled=1
t
PKP
t
RST
SETTING
SETTING
Off=0
ZERO SEQ VOLT (V_0)
3V_0 Pickup
<
NEUTRAL OV1 CURVE :
t
Содержание M60 UR Series
Страница 10: ...x M60 Motor Protection System GE Multilin TABLE OF CONTENTS ...
Страница 98: ...3 40 M60 Motor Protection System GE Multilin 3 3 DIRECT INPUT OUTPUT COMMUNICATIONS 3 HARDWARE 3 ...
Страница 128: ...4 30 M60 Motor Protection System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Страница 238: ...5 110 M60 Motor Protection System GE Multilin 5 4 SYSTEM SETUP 5 SETTINGS 5 Figure 5 29 DISCONNECT SWITCH SCHEME LOGIC ...
Страница 410: ...5 282 M60 Motor Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 413: ...GE Multilin M60 Motor Protection System 6 3 6 ACTUAL VALUES 6 1 OVERVIEW 6 FIRMWARE REVISIONS See page 6 29 ...
Страница 440: ...6 30 M60 Motor Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Страница 452: ...7 12 M60 Motor Protection System GE Multilin 7 2 TARGETS 7 COMMANDS AND TARGETS 7 ...
Страница 462: ...9 8 M60 Motor Protection System GE Multilin 9 2 BATTERIES 9 MAINTENANCE 9 ...
Страница 474: ...A 12 M60 Motor Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Страница 584: ...B 110 M60 Motor Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Страница 614: ...C 30 M60 Motor Protection System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Страница 630: ...E 10 M60 Motor Protection System GE Multilin E 1 IEC 60870 5 104 PROTOCOL APPENDIX E E ...
Страница 642: ...F 12 M60 Motor Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Страница 644: ...G 2 M60 Motor Protection System GE Multilin G 1 RADIUS SERVER CONFIGURATION APPENDIX G G ...
Страница 652: ...H 8 M60 Motor Protection System GE Multilin H 3 WARRANTY APPENDIX H H ...
Страница 662: ...x M60 Motor Protection System GE Multilin INDEX ...