KR960002403A - Overcurrent Protection Circuit and Its Apparatus - Google Patents

Overcurrent Protection Circuit and Its Apparatus Download PDF

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Publication number
KR960002403A
KR960002403A KR1019950012508A KR19950012508A KR960002403A KR 960002403 A KR960002403 A KR 960002403A KR 1019950012508 A KR1019950012508 A KR 1019950012508A KR 19950012508 A KR19950012508 A KR 19950012508A KR 960002403 A KR960002403 A KR 960002403A
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KR
South Korea
Prior art keywords
current limiting
limiting fuse
phase
input
striker
Prior art date
Application number
KR1019950012508A
Other languages
Korean (ko)
Inventor
도오루 다니미즈
아끼라 오사까
요시또모 고또오
요시미 하까마따
후미오 와까사
Original Assignee
가나이 쯔도무
가부시끼가이샤 히다찌세이사꾸쇼
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 가나이 쯔도무, 가부시끼가이샤 히다찌세이사꾸쇼 filed Critical 가나이 쯔도무
Publication of KR960002403A publication Critical patent/KR960002403A/en

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Classifications

    • 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
    • H02H3/08—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 excess current
    • H02H3/083—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 excess current for three-phase systems
    • 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
    • H02H3/08—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 excess current
    • H02H3/093—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 excess current with timing means

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  • Emergency Protection Circuit Devices (AREA)
  • Fuses (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

본 발명의 과전류 보호회로는 각 전류제한퓨즈(6A-6C)의 적어도 일상의 전류제한퓨즈(6A)의 용단신호가 입력됨과 동시에 타상의 전류제한퓨즈의 용단신호가 입력되면 트립코일(9)을 여자하여, 3상 일광형 부하개폐기(5)를 개방하는 지연회로(8)를 설치함으로써 3상의 전류제한퓨즈가 모두 용단된 후에 3상 일괄형 부하개폐기(5)를 개방하므로 차단불능 또 상간 단락등을 방지할 수 있게 되어, 안전한 설비의 과전류 보호회로를 제공하는 데 있다.The overcurrent protection circuit of the present invention, when the blowout signal of at least the daily current limiting fuse 6A of each current limiting fuse 6A-6C is input and the blowout signal of the other phase current limiting fuse is input, turns off the trip coil 9. By setting the delay circuit 8 to open the three-phase solar load switch 5 by excitation, the three-phase integrated load switch 5 is opened after all three-phase current limiting fuses have been blown out. It is possible to prevent the back, and to provide an overcurrent protection circuit of a safe facility.

Description

과전류 보호회로 및 그 장치Overcurrent Protection Circuit and Its Apparatus

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 의한 실시예의 배전계통의 과전류 보호회로,1 is an overcurrent protection circuit of a distribution system according to an embodiment of the present invention,

제2도는 본 발명의 다른 실시예를 나타낸 배전계통의 과전류 보호회로,2 is an overcurrent protection circuit of a distribution system according to another embodiment of the present invention,

제3도는 제1도의 전류제한 푸즈의 용단 특성도,3 is a melting characteristic diagram of the current limiting fuse of FIG.

제4도는 제1도에 사용한 과전류 보호장치의 종단면도,4 is a longitudinal sectional view of the overcurrent protection device used in FIG.

제5도는 본 발명의 다른 실시예로 나타낸 과전류 보호장치의 종단면도이다.5 is a longitudinal cross-sectional view of an overcurrent protection device according to another embodiment of the present invention.

Claims (10)

전류제한퓨즈 및 부하개폐기를 접속하여 이루어진 회로에 있어서, 각 상의 전류제한퓨즈의 적어도 일상에 용단신호가 입력됨과 동시에, 타상의 전류제한퓨즈의 용단신호가 입력되는 것을 조건으로 하여, 트립코일을 여자하여 상기 부하개폐기를 개방하는 지연수단을 설치하는 것을 특징으로 하는 과전류 보호회로.In a circuit formed by connecting a current limiting fuse and a load breaker, the trip coil is excited on the condition that a blowout signal is input to at least a daily routine of the current limiting fuse of each phase and a blowout signal of the current limiting fuse of the other phase is input. And a delay means for opening the load breaker. 제1항에 있어서, 각 전류제한퓨즈의 용단시간이 거의 동일한 용단시간일 때에는 트립코일을 여자하여 부하개폐기를 개방하는 개방수단을 설치하는 것을 특징으로 하는 과전류 보호회로.2. The overcurrent protection circuit according to claim 1, wherein an opening means for exciting the trip coil to open the load switch when the melting time of each current limiting fuse is about the same melting time. 제1항에 각 상의 전류제한퓨즈의 적어도 일상이 용단하고, 스트라이커가 튀어나와, 릴레이의 동작신호가 입력됨과 동시에, 타상의 전류제한퓨즈가 용단하여 스트라이커가 튀어나오고, 각 릴레이의 동작신호가 입력되면, 트립코일을 여자하여 부가개폐기를 개방하는 지연수단을 설치하는 것을 특징으로 하는 과전류 보호회로.The current limiting fuse of each phase is melted at least, the striker pops up, the operation signal of the relay is input, and the current limiting fuse of the other phase is blown out, and the striker pops up, and the operation signal of each relay is input. And if necessary, delay means for exciting the trip coil to open the additional switch. 제1항 내지 제3항중 어느 한 항에 있어서, 상기 부하개폐기에 3상 일괄 부하개폐기를 사용하는 것을 특징으로 하는 과전류 보호회로.The overcurrent protection circuit according to any one of claims 1 to 3, wherein a three-phase collective load switch is used for the load switch. 제1항 내지 제3항중 어느 한 항에 있어서, 상기 지연수단은, 각 전류제한퓨즈의 최초의 일상이 용단하는 용단시간과 타상의 전류제한퓨즈의 최후에 용단하는 용단시간과 스트라이커 등의 동작시간을 고려한 시간을 설정한 것을 특징으로 하는 과전류 보호회로.4. The delay means according to any one of claims 1 to 3, wherein the delay means includes a melting time for melting the first routine of each current limiting fuse and a melting time for last melting of the current limiting fuse of the other phase, and an operating time such as a striker. An over-current protection circuit, characterized in that the time is set in consideration of the consideration. 제1항 내지 제3항중 어느 한 항에 있어서, 상기 부하개폐기 및 전류제한퓨즈의 2차측에 콘덴서, 자기 인덕턴스를 가지는 회로를 접속한 것을 특징으로 하는 과전류 보호회로.The overcurrent protection circuit according to any one of claims 1 to 3, wherein a circuit having a capacitor and a magnetic inductance is connected to the secondary side of the load switch and the current limiting fuse. 부하 개폐기의 가동접촉자를 조작기구부에 의하여 접촉이탈시켜, 상기 접촉자의 한쪽측과 전기적으로 접속되어 있는 전원측 단자와 부하측 단자와의 사이에 전류제한퓨즈를 삽입하고, 전류제한퓨즈가 용단되고, 각 전류제한퓨즈의 적어도 일상이 용단되면 튀어나오는 스트라이커에 의하여 릴레이를 동작시켜 지연수단에 입력되고, 상기 지연수단은 타상의 전류제한퓨즈의 스트라이커로부터의 입력신호가 입력되면, 트리보일을 여자하여 조작기구부를 동작시켜, 가동접촉자를 고정접촉자로부터 전기적으로 접촉 이탈시키는 것을 특징으로 하는 과전류 보호장치.The movable contact of the load switch is detached from the operation mechanism to insert a current limiting fuse between the power supply terminal and the load terminal which are electrically connected to one side of the contactor, and the current limiting fuse is blown to remove the current. When at least the daily routine of the restriction fuse is blown, the relay is operated by a popping striker to input the delay means. When the input signal from the striker of the current limiting fuse of the other phase is input, the delay means excites a tree boil to operate the control mechanism. Operating, so that the movable contact is electrically separated from the fixed contact. 각 부하개폐기의 고정접촉자와 가동접촉자를 조작기구부에 의하여 접촉 이탈시키고, 상기 접촉자와 전기적으로 접속되어 있는 전원측 단자와 부하측 단자와의 사이에 전류제한퓨즈를 삽입하고, 각 전류제한퓨즈의 적어도 일상이 용단되면 튀어나오는 스트라이커에 의하여 릴레이를 동작시켜 대시포트로 타상의 전류제한퓨즈의 스트라이커로부터의 입력신호가 입력될 때까지 조작기구부의 동작을 지지하는 것을 특징으로 하는 과전류 보호장치.The fixed contactor and the movable contactor of each load breaker are separated from each other by the operation mechanism, and a current limiting fuse is inserted between the power supply terminal and the load side terminal electrically connected to the contactor, and at least daily operation of each current limiting fuse is performed. An over-current protection device characterized by supporting the operation of the operating mechanism until the input signal from the striker of the current limiting fuse of the other phase is input to the dash port by operating the relay by a striker that pops out when blown out. 제7항 또는 제8항에 있어서, 상기 부하개폐기에 3상 일괄형 부하개폐기를 사용하는 것을 특징으로 하는 과전류 보호장치.The overcurrent protection device according to claim 7 or 8, wherein a three-phase integrated load switch is used for the load switch. 제7항 또는 제8항에 있어서, 상기 부하개폐기 및 전류제한퓨즈의 2차측에 콘덴서, 자기 인덕턴스를 가지는 회로를 접속한 것을 특징으로 하는 과전류 보호장치.The overcurrent protection device according to claim 7 or 8, wherein a circuit having a capacitor and a magnetic inductance is connected to the secondary side of the load switch and the current limiting fuse. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950012508A 1994-06-15 1995-05-19 Overcurrent Protection Circuit and Its Apparatus KR960002403A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP94-132771 1994-06-15
JP13277194A JP3293327B2 (en) 1994-06-15 1994-06-15 Overcurrent protection circuit and its device

Publications (1)

Publication Number Publication Date
KR960002403A true KR960002403A (en) 1996-01-26

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Application Number Title Priority Date Filing Date
KR1019950012508A KR960002403A (en) 1994-06-15 1995-05-19 Overcurrent Protection Circuit and Its Apparatus

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JP (1) JP3293327B2 (en)
KR (1) KR960002403A (en)
CN (1) CN1047481C (en)
DE (1) DE19521497A1 (en)
FR (1) FR2721433B1 (en)
TW (1) TW269062B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200112042A (en) * 2019-03-20 2020-10-05 (주)에스엠텍 Automatic Fault Isolation Device System of 3 Phase Batch Open by electric control

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100460622B1 (en) * 2001-11-06 2004-12-09 한국전력공사 The apparatus of transformer with a built-in switch
NL1021022C2 (en) * 2002-07-08 2004-01-09 Pooltechnics B V Drive assembly for switching a motor on and off comprises transformer with at least one primary winding and at least one secondary winding, transformer being arranged so that its emits lower voltage than alternating voltage
FR3021465B1 (en) * 2014-05-21 2016-06-10 Mft D'appareillage Electrique De Cahors PROTECTIVE BLOCK FOR A LOW VOLTAGE PROTECTION CIRCUIT BREAKER, IN PARTICULAR POWER SUPPLIED BY A POLE TRANSFORMER
CN108400040B (en) * 2018-05-08 2024-05-14 佛山职业技术学院 Main and standby power supply switching device with time delay protection

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126976B (en) * 1958-11-14 1962-04-05 Siemens Ag Protective device against premature activation of an overcurrent multi-phase switch-disconnector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200112042A (en) * 2019-03-20 2020-10-05 (주)에스엠텍 Automatic Fault Isolation Device System of 3 Phase Batch Open by electric control

Also Published As

Publication number Publication date
CN1120255A (en) 1996-04-10
CN1047481C (en) 1999-12-15
JPH087720A (en) 1996-01-12
FR2721433B1 (en) 1998-12-18
TW269062B (en) 1996-01-21
DE19521497A1 (en) 1995-12-21
JP3293327B2 (en) 2002-06-17
FR2721433A1 (en) 1995-12-22

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