KR102210805B1 - High current lightning protection circuit of surge protecter - Google Patents

High current lightning protection circuit of surge protecter Download PDF

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KR102210805B1
KR102210805B1 KR1020190008869A KR20190008869A KR102210805B1 KR 102210805 B1 KR102210805 B1 KR 102210805B1 KR 1020190008869 A KR1020190008869 A KR 1020190008869A KR 20190008869 A KR20190008869 A KR 20190008869A KR 102210805 B1 KR102210805 B1 KR 102210805B1
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varistors
surge protector
protection circuit
line
current lightning
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KR1020190008869A
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KR20200091723A (en
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김정수
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삼현씨앤에스 주식회사
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/008—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for protective arrangements according to this subclass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/044—Physical layout, materials not provided for elsewhere

Abstract

본 발명은 서지보호기(10)의 입력단 전단에 적어도 2개의 바리스터(MOV)를 순차 통과하도록 이루어져 고전류 낙뢰시 2차에 걸쳐 바리스터가 작용하여 서지전압을 억제하는 서지보호기의 고전류 낙뢰방지 보호회로로,
상기, 고전류 낙뢰방지 보호회로는 전원입력 일선(H) 과 일단에 동시에 접속된 제 1 및 제 3바리스터(M1, M3);
전원입력 다른 일선(N)과 다른단에 동시에 접속된 제 1 및 제 2바리스터(M1, M2); 및
제1 및 제 2바리스터(M1, M2)의 다른 단에서 일단이 접속된 제4바리스터(M4)를 포함하고;
상기 전원입력 일선(H)과 다른 일선(N)은 또한 서지보호기의 입력단으로 각각 인가하고,
상기 제2바리스터(M2) 일단과 상기 제 3 및 제 4바리스터(M3, M4)의 다른 단은 공통으로 접지부스바(14)에 연결되며;
전원입력단에 낙뢰 고전류가 인가되면 바리스터(M1,M2)중의 적어도 하나와, 바리스터(M3,M4)중의 적어도 하나가 순차 통과(순시단락)하여 접지부스바에 접지됨으로써 서지보호기를 보호한다.The present invention is a high-current lightning protection protection circuit of a surge protector that suppresses surge voltage by sequentially passing at least two varistors (MOV) at the front end of the input terminal of the surge protector 10 so that the varistor acts two times during high-current lightning strikes,
The high current lightning protection circuit includes first and third varistors (M1, M3) simultaneously connected to one end of the power input line (H);
First and second varistors (M1, M2) simultaneously connected to the other end of the power input line (N) and the other end; And
And a fourth varistor M4 having one end connected at the other end of the first and second varistors M1 and M2;
The power input line (H) and the other line (N) are also applied to the input terminal of the surge protector, respectively,
One end of the second varistor M2 and the other end of the third and fourth varistors M3 and M4 are connected to the ground bus bar 14 in common;
When a high lightning current is applied to the power input terminal, at least one of the varistors M1 and M2 and at least one of the varistors M3 and M4 pass sequentially (instantaneous short-circuit) and are grounded to the grounding booth bar to protect the surge protector.

Figure R1020190008869
Figure R1020190008869

Description

서지보호기의 고전류 낙뢰방지 보호회로{High current lightning protection circuit of surge protecter}High current lightning protection circuit of surge protecter

본 발명은 서지보호기의 고전류 낙뢰방지 보호회로에 관한 것이다.The present invention relates to a high current lightning protection protection circuit of a surge protector.

낙뢰방지 서지보호기(SPD;Surge Protect Device) 관련 기술은 국내공개특허10-2014-17773호의 서지보호장치와, 국내특허등록10-0767620호의 낙뢰보상장치, 국내특허등록10-1436512호의 서지방호장치로 알려져 있다. 이들은 도 1 및 도 2 와 같이 각 전원상 사이에 하나의 바리스터(MOV;Metal Oxide varister)를 사용하여(MOV1, MOV2), 과전류시에 저항값이 줄어들어 과전류를 흡수함으로써 서지보호기(자동복구 누전차단기)를 보호하도록 이루어진다.The technology related to the lightning protection surge protector (SPD) is a surge protection device of Korean Patent Publication No. 10-2014-17773, a lightning compensation device of domestic patent registration No. 10-0767620, and a surge protect device of domestic patent registration No. 10-1436512. Is known. They use one varistor (MOV; Metal Oxide varister) between each power phase as shown in FIGS. 1 and 2 (MOV1, MOV2), and the resistance value decreases during overcurrent and absorbs the overcurrent, thereby absorbing the surge protector (automatic recovery earth leakage breaker). ) To protect.

따라서 서지보호기의 특성상 고전류 낙뢰는 수용할 수 없어 서지보호기 보호 특성이 제한사용되는 실정이다.Therefore, due to the characteristics of the surge protector, high current lightning is unacceptable, and the protection characteristics of the surge protector are limited.

본 발명은 이를 해결하고자 하는 것으로, 본 발명의 목적은 고전류 낙뢰에도 서지보호기를 보호할 수 있는 서지보호기의 고전류 낙뢰방지 보호회로를 제공하려는 것이다.The present invention is to solve this, and an object of the present invention is to provide a high-current lightning protection protection circuit of a surge protector capable of protecting the surge protector even in a high current lightning strike.

이를 위한 본원발명은 고전류 낙뢰발생시 전원 입력선에 적어도 2곳의 바리스터가 순차 지연 전달(순시단락)되도록 구성하여 고전류낙뢰 발생시 전원공급에 영향을 미치지 않도록 작용하는 서지보호기의 고전류 낙뢰방지 보호회로를 제공한다.For this purpose, the present invention provides a high-current lightning protection protection circuit of a surge protector that acts so as not to affect the power supply when a high-current lightning strike occurs by configuring at least two varistors to be sequentially delayed (instantaneous short circuit) to the power input line when a high current lightning strike occurs. do.

이상과 같이 본 발명은 고전류 낙뢰에도 서지보호기를 보호할 수 있는 서지보호기의 고전류 낙뢰방지 보호회로를 제공하여 서지보호기를 안전하게 보호한다.As described above, the present invention safely protects the surge protector by providing a high-current lightning protection protection circuit of the surge protector capable of protecting the surge protector even in high current lightning strikes.

도 1은 종래의 일 예를 보인 서지보호기 보호회로,
도 2는 종래의 다른 예를 보인 서지보호기 보호회로,
도 3은 본 발명의 서지보호기의 고전류 낙뢰방지 보호회로,
도 4는 본 발명의 전원 다른 일선과 접지간의 낙뢰유입시 작동하는 보호회로,
도 5는 본 발명의 전원 일선과 전원 다른 일선간의 낙뢰유입시 작동하는 보호회로이다.1 is a surge protector protection circuit showing a conventional example,
Figure 2 is a surge protector protection circuit showing another example of the prior art,
3 is a high current lightning protection protection circuit of the surge protector of the present invention,
4 is a protection circuit that operates when lightning flows between another line of the power source and the ground of the present invention,
5 is a protection circuit that operates when lightning flows between one power line and another power line according to the present invention.

이하 본원발명의 실시예를 도면을 참조하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

본원발명은 도 3 과 같이 서지보호기(10)의 각 입력단 전단에 고전류 낙뢰 인가시 적어도 2개의 바리스터(MOV)를 순차 통과(순시단락)하는 서지보호기의 고전류 낙뢰방지 보호회로를 구성한다.The present invention constitutes a high current lightning protection protection circuit of a surge protector that sequentially passes (instantaneous short circuit) at least two varistors (MOV) when a high current lightning is applied to each input terminal of the surge protector 10 as shown in FIG. 3.

상기, 고전류 낙뢰방지 보호회로는 전원입력 일선(H)과 일단에서 동시에 접속된 제 1 및 제 3바리스터(M1, M3);The high current lightning protection protection circuit includes first and third varistors (M1, M3) simultaneously connected at one end of the power input line (H);

전원입력 다른 일선(N)과 다른단에 동시에 접속된 제 1 및 제 2바리스터(M1, M2); 및First and second varistors (M1, M2) simultaneously connected to the other end of the power input line (N) and the other end; And

제1 및 제 2바리스터(M1, M2)의 다른 단에 추가로 일단이 접속된 제4바리스터(M4)를 포함하고;And a fourth varistor M4 having one end connected to the other ends of the first and second varistors M1 and M2;

상기 전원입력 일선(H)과 다른 일선(N)은 또한 서지보호기(10)의 입력단으로 각각 인가하고, The power input line (H) and the other line (N) are also applied to the input terminal of the surge protector 10, respectively,

상기 제2바리스터(M2)일단과 상기 제 3 및 제 4바리스터(M3, M4)의 다른 단은 공통으로 접지 부스바(16)에 연결한다.
전원입력선에 낙뢰 고전류가 인가되면 상기 바리스터(M1,M2) 중의 적어도 하나와, 상기 바리스터(M3,M4)중의 적어도 하나가 순차 통과(순시단락)하여 접지부스바(14)에 접지됨으로써 서지보호기를 보호하도록 기능한다.One end of the second varistor M2 and the other end of the third and fourth varistors M3 and M4 are commonly connected to the ground busbar 16.
When a high lightning current is applied to the power input line, at least one of the varistors M1 and M2 and at least one of the varistors M3 and M4 are sequentially passed (instantaneous short-circuit) and are grounded to the grounding booth bar 14, thereby providing a surge protector. Functions to protect

상기, 서지보호기(10)의 출력단에는 병렬로 이루어어진 수 개의 전원출력단을 가진 출력터미널(12)과 전원 출력콘센트(16)를 서지보호기(10)의 출력단에 병렬로 연결한다.In the output terminal of the surge protector 10, an output terminal 12 having several power output terminals in parallel and a power output outlet 16 are connected in parallel to the output terminal of the surge protector 10.

(20)은 플럭(30)을 통하여 연결되는 일선(H)과 다른 일선(N)에 인가되는 전원의 과전류시 일선(H)과 다른 일선(N)의 선로를 차단하여 회로를 보호하는 휴즈 같은 배선차단기 이다.(20) is a fuse that protects the circuit by blocking the line (H) and the line (N) of the other line (N) when the power applied to the line (H) connected through the plug (30) is overcurrent. It is a wiring breaker.

이와같이 구성한 본원발명의 작동을 설명한다.The operation of the present invention constructed in this way will be described.

고전류 낙뢰가 다른 일선(N)과 접지선(G)으로 유입시, 다른 일선(N)으로 유입되는 고전류 낙뢰에 의하여 제2바리스터(M2)의 순시단락으로 접지와 연결되어 서지전압이 일차 억제되고, 이후 제4바리스터(M4)의 일단을 통하여 인가되는 고전류 낙뢰는 수 마이크로초 차이로 이차로 지연되어 서지전압이 억제된 상태로 서지보호기(10)의 입력단에 도 4 와 같이 인가되어 서지보호기(10)가 안정적으로 작동되도록 기능한다.When a high-current lightning strike flows into the other line (N) and the ground line (G), the surge voltage is first suppressed by being connected to the ground through an instantaneous short circuit of the second varistor (M2) by the high-current lightning that flows into the other line (N). Thereafter, the high current lightning applied through one end of the fourth varistor M4 is delayed by a difference of several microseconds and is applied to the input terminal of the surge protector 10 as shown in FIG. 4 with the surge voltage suppressed. ) Functions to operate stably.

고전류 낙뢰가 일선(H)과 접지선(G) 으로 유입시, 일선(H)을 통한 고전류 낙뢰는 제3바리스터(M3)를 거쳐 접지선으로 유입되어 서지전압이 일차로 억제되고, 이후 직렬 연결상태의 제1바리스터(M1)와 제2바리스터(M2)의 순시단락으로 유입된 고전류 낙뢰는 수 마이크로 초 차이로 이차로 순차지연되므로, 서지전압이 억제된 상태로 서지보호기(10)의 입력단에 인가되어 안정적으로 서지보호기가 작동되도록 기능한다.When high current lightning flows into the line (H) and the ground line (G), the high current lightning through the line (H) flows into the ground line through the third varistor (M3), and the surge voltage is first suppressed, and then the series connection The high current lightning that flows into the instantaneous short circuit of the first varistor (M1) and the second varistor (M2) is sequentially delayed by a difference of several microseconds, so it is applied to the input terminal of the surge protector 10 while the surge voltage is suppressed. It functions to stably operate the surge protector.

고전류 낙뢰가 일선(H)과 다른 일선(N) 으로 유입시, 일선(H)을 통한 고전류 낙뢰는 제1바리스터(M1)를 거쳐 서지전압이 일차로 억제되고, 이후 직렬 연결상태의 제3바리스터(M3)와 4바리스터(M4)가 순시단락되므로, 인가되는 서지전압이 수 마이크로 초 차이로 이차로 순차지연되므로, 서지전압이 억제된 상태로 서지보호기(10)의 입력단에 도 5와 같이 인가되어 안정적으로 서지보호기(10)가 작동되도록 기능한다. 이는 전원입력단에 낙뢰 고전류(고전류 낙뢰)가 인가되면 바리스터(M1,M2)중의 적어도 하나와, 바리스터(M3,M4)중의 적어도 하나가 순차 통과(순시단락)하여 접지부스바에 접지됨으로써 서지보호기를 보호하는 것이다.When high-current lightning flows into one line (N) different from one line (H), the high-current lightning through the line (H) is first suppressed through the first varistor (M1), and then the third varistor in series connection state. Since (M3) and 4 varistors (M4) are instantaneously shorted, the applied surge voltage is sequentially delayed by a difference of several microseconds, so that the surge voltage is suppressed and applied to the input terminal of the surge protector 10 as shown in FIG. It functions so that the surge protector 10 operates stably. This means that when a lightning high current (high current lightning) is applied to the power input terminal, at least one of the varistors (M1, M2) and at least one of the varistors (M3, M4) pass sequentially (instantaneous short circuit) and are grounded to the ground booth bar to protect the surge protector. Is to do.

10;서지보호기 12;출력터미널 14;접지부스바 16;전원 출력콘센트 20;배선차단기 30;플럭10; Surge protector 12; Output terminal 14; Ground booth bar 16; Power output outlet 20; Wire breaker 30; Flock

Claims (4)

삭제delete 삭제delete 삭제delete 서지보호기(10)의 입력단 전단에 적어도 2개의 바리스터(MOV)를 순차 통과하는 고전류 낙뢰방지 보호회로를 부가하고;
상기, 고전류 낙뢰방지 보호회로는 전원입력 일선(H) 과 일단에 동시에 접속된 제 1 및 제 3바리스터(M1, M3);
전원입력 다른 일선(N)과 다른단에 동시에 접속된 제 1 및 제 2바리스터(M1, M2); 및
제1 및 제 2바리스터(M1, M2)의 다른 단에서 일단이 접속된 제4바리스터(M4)를 포함하고;
상기 전원입력 일선(H)과 다른 일선(N)은 또한 서지보호기의 입력단으로 각각 인가하고,
상기 제2바리스터(M2) 일단과 상기 제 3 및 제 4바리스터(M3, M4)의 다른 단은 공통으로 접지부스바(14)에 연결되며;
전원입력단에 낙뢰 고전류가 인가되면 바리스터(M1,M2)중의 적어도 하나와, 바리스터(M3,M4)중의 적어도 하나가 순차 통과(순시단락)하여 접지부스바에 접지됨으로써 서지보호기를 보호하는 것을 특징으로 하는 서지보호기의 고전류 낙뢰방지 보호회로.
Adding a high current lightning protection protection circuit sequentially passing through at least two varistors (MOV) at a front end of the input terminal of the surge protector 10;
The high current lightning protection circuit includes first and third varistors (M1, M3) simultaneously connected to one end of the power input line (H);
First and second varistors (M1, M2) simultaneously connected to the other end of the power input line (N) and the other end; And
And a fourth varistor M4 having one end connected at the other end of the first and second varistors M1 and M2;
The power input line (H) and the other line (N) are also applied to the input terminal of the surge protector, respectively,
One end of the second varistor M2 and the other end of the third and fourth varistors M3 and M4 are connected to the ground bus bar 14 in common;
When a high lightning current is applied to the power input terminal, at least one of the varistors M1 and M2 and at least one of the varistors M3 and M4 pass sequentially (instantaneous short circuit) and are grounded to the grounding booth bar to protect the surge protector. High current lightning protection protection circuit of surge protector.
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KR102233766B1 (en) 2020-09-29 2021-03-31 (주)대광 Lightning protection system of a telephone pole connected to a distribution line
KR102218875B1 (en) 2020-12-07 2021-02-23 주식회사 엔티에스 Intelligent electric power supply switching apparatus and method for lightning stroke

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KR100767620B1 (en) * 2007-02-24 2007-10-17 김선호 Surge protective device for power supply line
WO2011041929A1 (en) * 2009-10-09 2011-04-14 American Power Conversion Corporation System and method for providing surge protecion
US20120023994A1 (en) 2010-07-29 2012-02-02 Lennox Industries, Incorporated Surge protector, an hvac unit including the surge protector and a method of testing electrical equipment
KR101171228B1 (en) 2012-03-19 2012-08-06 국방과학연구소 Protection devices for power line against high altitude electromagnetic pulse

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Publication number Priority date Publication date Assignee Title
KR20140073893A (en) * 2012-12-07 2014-06-17 주식회사 에스아이티 A surge protector for sources of electricity

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100767620B1 (en) * 2007-02-24 2007-10-17 김선호 Surge protective device for power supply line
WO2011041929A1 (en) * 2009-10-09 2011-04-14 American Power Conversion Corporation System and method for providing surge protecion
US20120023994A1 (en) 2010-07-29 2012-02-02 Lennox Industries, Incorporated Surge protector, an hvac unit including the surge protector and a method of testing electrical equipment
KR101171228B1 (en) 2012-03-19 2012-08-06 국방과학연구소 Protection devices for power line against high altitude electromagnetic pulse

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