KR200271159Y1 - 과전류 계전기 - Google Patents
과전류 계전기 Download PDFInfo
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- KR200271159Y1 KR200271159Y1 KR2019990008028U KR19990008028U KR200271159Y1 KR 200271159 Y1 KR200271159 Y1 KR 200271159Y1 KR 2019990008028 U KR2019990008028 U KR 2019990008028U KR 19990008028 U KR19990008028 U KR 19990008028U KR 200271159 Y1 KR200271159 Y1 KR 200271159Y1
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Abstract
Description
Claims (5)
- 전기 기기의 과전류를 차단시켜주는 과전류 계전기에 있어서,과전류 검출 및 과전류 차단을 수행하는 작동부는,히터저항(R-H)에 짧게 연결되는 바이메탈(BM)과;상기 바이메탈(BM)에 직각으로 가동부(AR)가 연동되도록 설치되는 마이크로 스위치(M-SW)와;에어갭을 극대화한 I자형, G자형, E자형, U자형, 공심코어형, 사각형 중 어느 하나를 선택하여 사용하는 전류트랜스(T)로서 구성되어 상기 전류트랜스(T)에서 검출된 전류에 비례하는 전압을 출력하는 전류 검출부(45)와;상기 전류검출부(45)의 출력전압이 기준전압 보다 높을때(과도전류상태) 로 우신호를 출력하는 낸드게이트(U1A, U1B)와;상기 낸드게이트(U1A, U1B)의 출력이 로우상태일때 히터저항(R-H)으로 전압을 공급하여 바이메탈(BM)의 동작에 의해 마이크로스위치(M-SW)가 오프되도록 하는 정전류 출력부(42); 를 포함하여 구성되는 것을 특징으로 하는 과전류 계전기.
- 청구항2는 삭제 되었습니다.
- 제 1 항에 있어서, 상기 바이메탈(BM) 및 마이크로 스위치(M-SW)를 대체하기 위해 릴레이(RL6)를 구비하고,상기 릴레이(RL6)를 온/오프 제어하기 위한 수단으로서,입력전류를 검출하고, 그 입력전류에 비례하는 전압을 출력하는 전류 검출부(66)와;상기 전류검출부(66)의 출력전압이 기준전압 보다 큰경우 하이신호를 출력하는 레벨판별부(65)와;상기 레벨판별부(65)에서 하이신호가 출력될때 이 신호를 필요시간만큼 지연시켜 출력하는 시간지연회로(63)와;상기 시간지연회로(63)로부터 일정시간 지연된 하이신호가 입력될때 릴레이(RL6)를 구동시키는 정전류 출력부(62); 를 구성한 것을 특징으로 하는 과전류 계전기.
- 청구항4는 삭제 되었습니다.
- 청구항5는 삭제 되었습니다.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019990008028U KR200271159Y1 (ko) | 1999-05-12 | 1999-05-12 | 과전류 계전기 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR2019990008028U KR200271159Y1 (ko) | 1999-05-12 | 1999-05-12 | 과전류 계전기 |
Publications (2)
Publication Number | Publication Date |
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KR19990033679U KR19990033679U (ko) | 1999-08-16 |
KR200271159Y1 true KR200271159Y1 (ko) | 2002-04-09 |
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Application Number | Title | Priority Date | Filing Date |
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KR2019990008028U KR200271159Y1 (ko) | 1999-05-12 | 1999-05-12 | 과전류 계전기 |
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KR (1) | KR200271159Y1 (ko) |
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1999
- 1999-05-12 KR KR2019990008028U patent/KR200271159Y1/ko not_active IP Right Cessation
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