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L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
GROUPED ELEMENTS
CHAPTER 5: SETTINGS
5
The positive-sequence overcurrent advanced fault detector element responds to the increment of the magnitude of the
positive-sequence current over a specified threshold. Thresholds are provided for low-set control of keying and high-set
operation control of tripping.
POS SEQ I_1 FD FUNCTION
— This setting enables or disables the positive-sequence overcurrent fault detection. Note that all
fault detectors operate in parallel with the 87PC function. To effectively disable the overcurrent fault detectors under the
main 87PC menu, set their threshold very high.
POS SEQ I_1 FDL PICKUP
— This setting specifies the pickup of the low-set stage of the element used to control the key
operation. The nominal current of the phase CT bank of the relay is 1 pu.
POS SEQ I_1 FDH PICKUP
— This setting specifies the pickup of the high-set stage of the element used to control the trip
operation. The nominal current of the phase CT bank of the relay is 1 pu.
POS SEQ I_1 BLK
— The fault detector is hard-wired to the 87PC scheme. It can be disabled permanently using the function
setting or blocked temporarily with this setting. This setting selects a FlexLogic operand that blocks this fault detector
when asserted.
POS SEQ I_1 FD TARGET
— This setting controls targets of the positive-sequence overcurrent advanced fault detector
function. These targets operate independently from the 87PC targets.
POS SEQ I_1 FD EVENTS
— This setting controls event recording of the positive-sequence overcurrent advanced fault
detector function. These events are logged independently from the 87PC events.
Figure 5-104: Positive-sequence overcurrent advanced fault detector logic
5.6.3.9 Charge current compensation
SETTINGS
GROUPED ELEMENTS
SETTING GROUP 1(6)
PHASE COMPARISON ELEMENTS
ADVANCED FAULT
DETECTORS
CHARGE CURRENT COMPENSATION
CHARGING CURRENT COMPENSATN
— This setting enables and disables the charging current calculations and corrections of
the mixed current used as an operating quantity for fault detectors and square pulses. The voltage signals used for
charging current compensation are taken from source 3 or 4 assigned with the three-phase voltage bank on the L5
voltage bank. As such, it is critical to ensure that three-phase line voltage is assigned to this source and voltage bank
settings are entered correctly. Half (or one-third for the three-terminal line, as defined by the
87PC SCHEME SELECT
setting)
of the line charging current is subtracted from the line current.
CHARGE CURRENT
COMPENSATION
CHARGE CURRENT
COMPENSATN: Disabled
Range: Disabled, Enabled
CHARGE COMPENST BLK:
Off
Range: any FlexLogic operand
POS SEQ CAPACITIVE
REACTANCE: 0.100 K
Ω
Range: 0.100 to 65.535 kohms in steps of 0.001
ZERO SEQ CAPACITIVE
REACTANCE: 0.100 K
Ω
Range: 0.100 to 65.535 kohms in steps of 0.001
Содержание L60
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Страница 14: ...1 4 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL FOR FURTHER ASSISTANCE CHAPTER 1 INTRODUCTION 1 ...
Страница 122: ...3 72 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL CONNECT TO D400 GATEWAY CHAPTER 3 INSTALLATION 3 ...
Страница 590: ...5 382 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 5 SETTINGS 5 ...
Страница 632: ...7 12 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL TARGETS MENU CHAPTER 7 COMMANDS AND TARGETS 7 ...
Страница 736: ...A 14 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL FLEXANALOG ITEMS APPENDIX A FLEXANALOG OPERANDS A ...
Страница 744: ...C 6 L60 LINE PHASE COMPARISON SYSTEM INSTRUCTION MANUAL COMMAND LINE INTERFACE APPENDIX C COMMAND LINE INTERFACE C ...
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