5-212
D60 Line Distance Protection System
GE Multilin
5.6 GROUPED ELEMENTS
5 SETTINGS
5
b) NEUTRAL TIME OVERCURRENT
(ANSI 51N, IEC PTOC)
PATH: SETTINGS
GROUPED ELEMENTS
SETTING GROUP 1(6)
NEUTRAL CURRENT
NEUTRAL TOC1(2)
The neutral time overcurrent element can provide a desired time-delay operating characteristic versus the applied current
or be used as a simple definite time element. The neutral current input value is a quantity calculated as 3Io from the phase
currents and may be programmed as fundamental phasor magnitude or total waveform RMS magnitude as required by the
application.
Two methods of resetting operation are available: “Timed” and “Instantaneous” (see the
Inverse TOC Curve Characteristics
section for details on curve setup, trip times and reset operation). When the element is blocked, the time accumulator will
reset according to the reset characteristic. For example, if the element reset characteristic is set to “Instantaneous” and the
element is blocked, the time accumulator will be cleared immediately.
Figure 5–101: NEUTRAL TIME OVERCURRENT 1 SCHEME LOGIC
NEUTRAL TOC1
NEUTRAL TOC1
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
NEUTRAL TOC1 SIGNAL
SOURCE: SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4
MESSAGE
NEUTRAL TOC1
INPUT: Phasor
Range: Phasor, RMS
MESSAGE
NEUTRAL TOC1
PICKUP: 1.000
pu
Range: 0.000 to 30.000 pu in steps of 0.001
MESSAGE
NEUTRAL TOC1
CURVE: IEEE Mod Inv
Range: See OVERCURRENT CURVE TYPES table
MESSAGE
NEUTRAL TOC1
TD MULTIPLIER: 1.00
Range: 0.00 to 600.00 in steps of 0.01
MESSAGE
NEUTRAL TOC1
RESET: Instantaneous
Range: Instantaneous, Timed
MESSAGE
NEUTRAL TOC1 BLOCK:
Off
Range: FlexLogic operand
MESSAGE
NEUTRAL TOC1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled
MESSAGE
NEUTRAL TOC1
EVENTS: Disabled
Range: Disabled, Enabled
SETTING
NEUTRAL TOC1
FUNCTION:
Enabled = 1
SETTING
NEUTRAL TOC1
SOURCE:
IN
NEUTRAL TOC1
BLOCK:
Off = 0
NEUTRAL TOC1
CURVE:
NEUTRAL TOC1
TD MULTIPLIER:
NEUTRAL TOC 1
RESET:
SETTINGS
SETTING
IN
PICKUP
I
t
NEUTRAL TOC1
PICKUP:
RUN
827034A4.VSD
FLEXLOGIC OPERANDS
NEUTRAL TOC1 DPO
NEUTRAL TOC1 OP
NEUTRAL TOC1
INPUT:
AND
NEUTRAL TOC1 PKP
Содержание D60
Страница 61: ...GE Multilin D60 Line Distance Protection System 2 31 2 PRODUCT DESCRIPTION 2 3 SPECIFICATIONS 2 ...
Страница 62: ...2 32 D60 Line Distance Protection System GE Multilin 2 3 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 ...
Страница 102: ...3 40 D60 Line Distance Protection System GE Multilin 3 3 DIRECT INPUT AND OUTPUT COMMUNICATIONS 3 HARDWARE 3 ...
Страница 134: ...4 32 D60 Line Distance Protection System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Страница 508: ...5 374 D60 Line Distance Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 538: ...6 30 D60 Line Distance Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Страница 610: ...10 8 D60 Line Distance Protection System GE Multilin 10 2 BATTERIES 10 MAINTENANCE 10 ...
Страница 622: ...A 12 D60 Line Distance Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Страница 745: ...GE Multilin D60 Line Distance Protection System B 123 APPENDIX B B 4 MEMORY MAPPING B ...
Страница 746: ...B 124 D60 Line Distance Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Страница 776: ...C 30 D60 Line Distance Protection System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Страница 792: ...E 10 D60 Line Distance Protection System GE Multilin E 1 IEC 60870 5 104 PROTOCOL APPENDIX E E ...
Страница 804: ...F 12 D60 Line Distance Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Страница 826: ...xii D60 Line Distance Protection System GE Multilin INDEX ...