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5-156
L30 Line Current Differential 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” (refer to the
Inverse time overcurrent 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 “Instan-
taneous” and the element is blocked, the time accumulator will be cleared immediately.
Figure 5–67: 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
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:
Disabled = 0
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
827034A3.VSD
FLEXLOGIC OPERANDS
NEUTRAL TOC1 DPO
NEUTRAL TOC1 OP
NEUTRAL TOC1
INPUT:
AND
NEUTRAL TOC1 PKP
Содержание L30
Страница 10: ...x L30 Line Current Differential System GE Multilin TABLE OF CONTENTS ...
Страница 30: ...1 20 L30 Line Current Differential System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Страница 58: ...2 28 L30 Line Current Differential System GE Multilin 2 4 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 ...
Страница 126: ...4 30 L30 Line Current Differential System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Страница 370: ...5 244 L30 Line Current Differential System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 396: ...6 26 L30 Line Current Differential System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Страница 450: ...10 10 L30 Line Current Differential System GE Multilin 10 4 INSTANTANEOUS ELEMENTS 10 APPLICATION OF SETTINGS 10 ...
Страница 464: ...A 10 L30 Line Current Differential System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Страница 600: ...C 30 L30 Line Current Differential System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Страница 610: ...D 10 L30 Line Current Differential System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
Страница 622: ...E 12 L30 Line Current Differential System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...
Страница 634: ...F 12 L30 Line Current Differential System GE Multilin F 3 WARRANTY APPENDIX F F ...
Страница 644: ...x L30 Line Current Differential System GE Multilin INDEX ...