KR950009773A - 자체시험 회로 차단기의 접지고장 및 스퍼터링 아크 트립장치 - Google Patents

자체시험 회로 차단기의 접지고장 및 스퍼터링 아크 트립장치 Download PDF

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KR950009773A
KR950009773A KR1019940023422A KR19940023422A KR950009773A KR 950009773 A KR950009773 A KR 950009773A KR 1019940023422 A KR1019940023422 A KR 1019940023422A KR 19940023422 A KR19940023422 A KR 19940023422A KR 950009773 A KR950009773 A KR 950009773A
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test
lead
signal
trip
impedance
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KR100299015B1 (ko
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와렌 맥켄지 레이몬드
안소니 워퍼 존
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프랑크 엠 사죠백
이턴 코오포레이숀
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H02H1/0015—Using arc detectors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/334—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control
    • H02H3/335—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control the main function being self testing of the device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/331—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers responsive to earthing of the neutral conductor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/44—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to the rate of change of electrical quantities

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

본 발명은 회로 차단기용 접지고장 트립장치에 관한 것으로 전류 변성기 감지 코일(들)을 통과하는 시험도선 및 중간-접자고장을 작동하는 루우프로 시험 도선을 선택적으로 접속시키는 시험 스위치를 구비한 수동 시험회로에 의해 시험된다. 휴지발진 접지고장 시험회로에서 시험도선 루우프는 감지코일을 통과한단. 중간-접지 검출기가 공통 감지코일을 할당하는 스퍼터링 아크고장 검출기와 결합할 때 소자의 시험은 랑니도선에서 얻는 펄스를 이차 감지코일에 제공하거나 이 이차 감지코일을 따라 DC전원으로부터 방전된 콘덴서를 접속 시키고 시험회로를 부과하여 성취된다. 또 다른 시험회로로 스퍼터링 아크트립을 발생하도록 연속 현상을 발생시킨다.

Description

자체시험 회로 차단기의 접지고장 및 스퍼터링 아크 트립장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 감지코일, 접지고장 검출회로를 지니며, 본 발명의 시험회로의 실시예를 도시한 개략도,
제2도는 제1도의 집적회로의 회로도,
제3도는 제1도 및 제2도의 시험회로의 회로도,
제4도는 제1도 및 제2도의 회로 차단기용 또 다른 시험회로의 회로도,
제5도는 본 발명의 시험회로를 포함하는 접지고장 검출회로를 지닌 고장 회로 차단기의 회로도,
제6도는 제5도의 회로 차단기의 집적회로의 회로도.

Claims (24)

  1. 라인도선고 중간도선을 지니되 상기 중간도선을 상기 회로 차단기 부근에 접지된 전자장치를 보호하는 회로 차단기용 접지고장 트립장치는 상기 중간도선이 통과하는 감지코일수단과; 상기 감지코일수단에 접속되어 보호된 전지장치의 중간-접지고장에 따라 트립 신호를 상기 회로 차단기에 발생시키는 중간-접지고장 검출수단과; 상기 중간-접지고장 검출수단이 상기 트립신호를 발생하게 하여 접지된 중간고장 상태를 조절하는 상기 감지코일수단에 커플된 시험수단을 구비한 접지고장 트립 장치.
  2. 제1항에 있어서, 상기 시험수단은 상기 감지코일수단을 통해 연장한 시험도선 수단과 상기 감지코일수단을 통과하는 폐쇄 루우프로 상기 시험도선수단을 선택적으로 집속시크는 시험 스위치를 포함하는 접지고장 트립장치.
  3. 제2항에 있어서, 상기 시험도선수단은 보호된 전직장치의 중간-접지고장의 최대 임피던스에 해당하는 임피던스를 갖는 접지고장 트립장치.
  4. 제3항에 있어서, 상기 시험도선수단은 전기 리이드와 보호된 전기장치의 상기 중간-접지고장의 상기 임피던스에 해당하는 이산 임피던스를 포함하는 접지고장 트립장치.
  5. 제3항에 있어서, 상기 시험도선수단은 보호된 전기장치의 상기 중간-접지고장의 상기 임피던스에 해당하는 분배 임피던스를 지닌 전기도선을 포함하는 접지고장 트립장치.
  6. 제2항에 있어서, 상기 감지코일수단은 상기 라인도선과 상기 중간도선이 통과하는 제1감지코일과, 상기 중간도선은 통과하지만 상기 라인도선은 통과하지않는 제2감지코일을 포함하며, 상기 접지고장 검출수단은 상기 제1 및 제2감지코일에 접속된 휴지발진 접지고장 검출회로를 포함하며, 상기 시험도선수단은 상기 제1 및 제2감지 코일을 통해 연장한 접지고장 트립장치.
  7. 라인도선과 중간도선을 지니며, 스퍼터링 아크고장 및 접지고장을 방지하는 보호된 전기장치의 회로 차단기의 트립장치는 상기 보호된 전기장치의 전류를 감지하는 코일감지수단과; 감지코일수단에 접속되어 접지중간고장을 포함하는 접지고장 및 스퍼터링 아크고장에 다라 트립신호를 발생하는 고정검출수단과; 접지중간 및 스퍼터링 아크고정 상태가 상기 고정 검출수단을 작동시키는 신호를 선택적으로 제공하는 감지코일수단에 접속된 시험수단을 구비한 트립장치.
  8. 제7항에 있어서, 상기 시험수단은 상기 감지코일수단을 통해 연장한 시험도선과 상기 감지코일수단을 통해 연장한 폐쇄 루우프 상기 시험도선을 선택적으로 접속시키는 시험 스위치를 구비한 트립장치.
  9. 제8항에 있어서, 상기 시험도선수단은 상기 보호된 전기장치의 접지중간고정의 최대 임피던스와 같은 임피던스를 갖는 트립장치.
  10. 제9항에 있어서, 상기 감지코일수단은 상기 라인도선과 상기 중간도선이 통과하는 제1감지코일과, 상기 중간도선은 통과하지만 상기 라인도선은 통과하지 않는 제2감지코일 포함하며, 상기 접지고장 검출수단은 상기 제1 및 제2감지코일에 접속된 휴지발진 접지고장 검출회로를 포함하며, 상기 시험도선수단은 상기 제1 및 제2감지 코일을 통해 연장한 트립장치.
  11. 제10항에 있어서, 상기 제2코일은 이차 권선을 지니고, 상기 스퍼터링 아크 검출회로는 대역폭 제한 di/dt신호(여기서 I는 중간도선의 전류)를 발생시키는 상기 이차 권선에 접속된 수단과 예비선택하에서 상기 트립신호를 발생시키기 위한 상기 di/dt 신호에 응답하는 수단을 구비하고 있으며, 상기 스퍼터링 아크 검출회로가 상기 트립신호를 발생시키게 하는 상기 이차 권선에 시험신호를 제공하는 수단을 포함하는 트립장치.
  12. 제11항에 있어서, 상기 시험신호를 전달하는 상기 수단은 상기 이차 권선에 접속된 임피던스수단과, 상기 임피던스수단을 상기 라인도선에 선택적으로 접속 시키는 스위치를 구비한 트립장치.
  13. 제11항에 있어서, 시험신호를 제공하는 상기 수단은 상기 이차 권선에 접속된 콘덴서, 상기 콘덴서를 충전시키는 수단, 상기 콘덴서를 상기 이차 권선에 방전시키는 수단을 포함하는 트립장치.
  14. 제11항에 있어서, 상기 di/dt신호에 응답하는 상기 수단은 di/dt신호를 임계값에 비교하는 레벨검출수단 및 상기 di/dt가 선택된 시간간격의 소정의 수의 시간에 상기 임계값을 초과할 때 트립신호를 발생시키는 상기 레벨 검출기에 응답하는 수단을 포함하며, 상기 시험신호를 상기 이차 권선에 발생시키는 상기 수단은 선택된 간격의 상기 소정의 다수의 시간에 상기 임계값을 초과하는 상기 이차 권선에 시험신호를 제공하는 트립장치.
  15. 제14항에 있어서, 시험신호를 제공하는 상기 수단은 상기 이차 권선에 접속된 임피던스수단과 AC펄스를 상기 이차 권선에 제공하기 위해 상기 임피던스 수단을 선택적으로 접속시키는 스위치를 구비한 트립장치.
  16. 제14항에 있어서, 상기 시험수단은 이차 권선에 접속된 콘덴서, 상기 콘덴서를 충전시키는 수단 및 발진를 발생시키기 위해 상기 콘덴서를 상기 이차 권선에 방전시키는 스위치 수단을 구비한 트립장치.
  17. 라인도선 및 중간도선을 지니며, 스퍼터링 아크고장을 방지하는 보호된 전기 장치의 회로 차단기용 자체시험 트립장티는 일차 권선으로 라인 및 중간도선중 하나를 지니며, 이차 권선을 지닌 감지코일과; 상기 이차 권선에 접속되어 대역폭 제한 di/dt신호(여기서 I는 상기 보호된 전기장치의 전류)를 발생시키는 수단과; 상기 대역폭 제한 di/dt신호가 선택된 임계값에 비교하는 레벨 검출수단; 상기 대역폭 di/dt신호가 선택된 간격의 소정의 수의 시간에 상기 선택된 임계값을 초과할 경우 트립신호를 발생시키는 수단과; 상기 감지코일에 접속되어 상기 선택된 간격내의 소정의 수의 신간에 상기 선택된 임계값을 초과하는 대역폭 제한 di/dt신호를 발생시키는 펄스를 발생시키는 시험수단을 구비한 자체시험 트립장치.
  18. 제17항에 있어서, 상기 시험수단은 상기 이차 권선에 접속된 임피던스수단과, 상기 임피던스수단을 상기 라인도선에 선택적으로 접속시키는 스위치수단을 구비한 자체시험 트립장치.
  19. 제17항에 있어서, 상기 시험수단은 상기 이차 권선에 접속된 콘덴서, 상기 콘덴서를 충전하는 수단 및 발진을 발생하기 위해 콘덴서를 상기 이차 권선에 선택적으로 방전시키는 스위치수단을 구비한 자체시험 트립장치.
  20. 라인도선과 중간도선을 지닌 보호된 전기장치의 회로 차단기용 트립장치는 상기 보호된 전기장치의 전류를 감지하는 감지수단, 상기 감지수단에 접속되어 상기 보호된 전기장치의 스퍼터링 아크고장에 의해 발생된 전류패턴에 따라 트립심호를 발생시키는 수단과, 상기 감지수단에 접속되어 상기 트립신호를 발생하기 위해 스퍼터링 아크고자에 의해 발생된 상기 전류패턴을 작동시키는 시험수단을 구비한 트립장치.
  21. 제20항에 있어서, 상기 고정검출수단은 상기 전류가 선택된 시간간격내의 소정의 수의 시간에서 예비선택된 크기를 초과하는 전류패턴에 응답하는 수단을 포함하소, 상기 시험수단은 선택된 시간간격내의 상기 소정의 수의 시간에 상기 예비선택된 크기를 초과하는 시험신호를 발생시키는 수단을 포함하는 트립장치.
  22. 제21항에 있어서, 상기 감지수단은 상기 중간도선에 통과하는 감지코일수단을 포함하며, 상기 시험수단은 상기 감지코일수단을 통해 연장된 시험도선수단과, 상기 감지코일수단을 통과하는 폐쇄 루우프로 상기 시험도선 수단을 선택적으로 접속시키는 시험 스위치를 구비한 트립장치.
  23. 제21항에 있어서, 상기 감지수단은 상기 중간도선과 고역필터에 의해 추종되는 저역필터에 접속도니 리이드를 포함하고, 상기 시험수단은 임피던스와 라인도선 및 중간도선을 따라 상기 임피던스를 선택적으로 연결할 때 상기 임피던스가 저역 필터에 접속되는 스위치를 구비한 트립장치.
  24. 제23항에 있어서, 상기 저역필터는 저항, 콘덴서를 구비하고 상기 저항은 상기 시험신호를 발생시키는 전압 분할기를 형성하는 트립장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940023422A 1993-09-15 1994-09-15 자체시험회로차단기의접지고장및스퍼터링아크트립장치 KR100299015B1 (ko)

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ZA947019B (en) 1995-04-24
CA2132137C (en) 2003-12-09
KR100299015B1 (ko) 2001-10-22
CN1106957A (zh) 1995-08-16
EP0649207A1 (en) 1995-04-19
CA2132137A1 (en) 1995-03-16
US5459630A (en) 1995-10-17

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