KR20020067902A - Load switching transformer - Google Patents

Load switching transformer Download PDF

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Publication number
KR20020067902A
KR20020067902A KR1020020038034A KR20020038034A KR20020067902A KR 20020067902 A KR20020067902 A KR 20020067902A KR 1020020038034 A KR1020020038034 A KR 1020020038034A KR 20020038034 A KR20020038034 A KR 20020038034A KR 20020067902 A KR20020067902 A KR 20020067902A
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KR
South Korea
Prior art keywords
loop
ground transformer
terminal
line
switch
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KR1020020038034A
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Korean (ko)
Inventor
박노식
김광의
최양길
최상락
Original Assignee
(주)한창트랜스
한국전력공사
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Priority to KR1020020038034A priority Critical patent/KR20020067902A/en
Publication of KR20020067902A publication Critical patent/KR20020067902A/en

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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
    • H02H7/04—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 transformers
    • 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
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • 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
    • H02H7/22—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 distribution gear, e.g. bus-bar systems; for switching devices

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

PURPOSE: A load switching transformer is provided to interrupt locally only an error section by forming sections of a distribution line. CONSTITUTION: A line switch(200) is installed in predetermined sections of a distribution line(100). A plurality of transformers(300) is installed in the predetermined sections of the distribution line(100), respectively. The transformers(300) are connected to each other in order to form a closed loop. A right loop terminal(B), a left loop terminal(A), and a transformer input terminal(C) are formed in the transformer(300). A switch(400) is used for connecting selectively the right loop terminal(B), the left loop terminal(A), and the transformer input terminal(C). The right loop terminal(B) is used for connecting a right loop with the transformer(300). The left loop terminal(A) is used for connecting a left loop with the transformer(300).

Description

부하개폐형 지상변압기{load switching transformer}Load switching transformer

본 발명은 지상변압기에 관한 것으로서, 변전소로부터 연결된 배전선로를 구간별로 구분시키는 선로개폐기와 폐루프 선로를 이루며 결합된 지상변압기에 있어서, 상기 선로개폐기 및 지상변압기를 루프결합시키기 위하여 마련된 우측루프단자와 상기 선로개폐기 및 지상변압기를 루프결합시키기 위하여 마련된 좌측루프단자와 지상변압기의 입력단과 연결된 입력단자와 상기 각 단자와 선택적으로 전기적 접속결합되는 스위치가 포함되어 구성되는 것을 특징으로 하는 부하개폐형 지상변압기에 관한 것이다.The present invention relates to a ground transformer, comprising a line breaker and a closed loop line that divide a distribution line connected from a substation by section, and in a ground transformer coupled to the right loop terminal provided to loop-couple the line breaker and the ground transformer. Load loop type ground transformer comprising a left loop terminal and an input terminal connected to the input terminal of the ground transformer and a switch that is selectively electrically connected to each of the terminals provided for loop coupling the line breaker and the ground transformer It is about.

이하 도1과 함께 종래기술방식에 관하여 살펴보기로 한다.Hereinafter, the prior art method will be described with reference to FIG. 1.

도1은 종래기술방식의 선로회로도이다.1 is a circuit diagram of a prior art method.

전력계통은 보통 발전 ·송전 ·배전의 셋으로 나누어지는데, 이 중에서 배전선로(100)는 발전소 ·변전소 또는 송전선에서 다른 발전소 또는 변전소를 지나지 않고 전력수요장소까지 이르는 선로이다.The power system is usually divided into three generations: power generation, transmission, and distribution. Among these, the distribution line 100 is a line that extends from a power plant, substation or transmission line to another power demand station without passing through another power plant or substation.

즉, 일반적으로는 2차 변전소에서 수용가까지의 전력 공급이 배전이다.In other words, the power supply from the secondary substation to the consumer is the power distribution.

그러나 기술적으로는 1차 변전소의 인출구부터를 배전으로 생각하는 경우도 많으며, 배전계통을 구성하는 것은 배전용 변전소 ·고압배전선로 ·선로개폐기 ·저압 배전선로 및 인입선이고 경우에 따라서는 1차 변전소에서 배전용 변전소까지의 선로도 포함될 수 있다.However, in many cases, the starting point of the inlet of the primary substation is considered to be power distribution, and the distribution system is composed of distribution substations, high-voltage distribution lines, line breakers, low-voltage distribution lines, and incoming lines. It may also include tracks to substations for distribution.

일반적으로 배전선로(100)에는 선로구간의 고장시, 고장수리를 위하여 구간별로 차단스위치를 마련하여 두는 데 이를 선로개폐기(200)라 한다.In general, in the distribution line 100, in the case of a failure in a line section, a break switch is provided for each section for repair of the fault, which is referred to as a line breaker 200.

상기 선로개폐기(200)의 설치구간에 따라 배전선로(100)는 구간이 구별되고 상기 구간내에 형성된 지상변압기(300)를 통하여 수용가(500)로 전원을 공급시킨다.According to the installation section of the line breaker 200, the distribution line 100 is divided into sections and supplies power to the customer 500 through the ground transformer 300 formed in the section.

그런데 종래기술방식에 있어서는 지상변압기(300)의 고장 또는 수용가의 고장에 의하여 고장수리가 필요한 경우에 배선선로를 구간별로 구분시키는 양 선로개폐기(200)를 차단시켜 구간내를 정전시킨 후 고장수리를 하였다.By the way, in the prior art method, when the troubleshooting is necessary due to the failure of the ground transformer 300 or the failure of the customer, the circuit breaker 200 which separates the wiring lines by sections is interrupted, the power is interrupted, and the troubleshooting is performed. It was.

따라서 종래기술방식에 있어서는 구간내 국부적인 고장에 의해서 배전선로 구간 전체가 정전되는 문제점이 있었다.Therefore, in the prior art system, there is a problem that the entire power distribution line section is outage due to local failure in the section.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 선로 구간의 사고가 발생되면 사고 구간만 국부적으로 차단시키는 배전경로를 형성시키는 부하개폐형 지상변압기를 제공하는 것을 목적으로 한다.The present invention has been made in order to solve the above problems, it is an object of the present invention to provide a load-opening type ground transformer for forming a distribution path to locally block only the accident section when an accident of the track section occurs.

또한 고장외 구간은 정상 작동되도록 하는 부하개폐형 지상변압기를 제공하는 것을 목적으로 한다.It is also an object of the non-fault section to provide a load-opening ground transformer for normal operation.

도1은 종래기술방식의 선로회로도1 is a circuit diagram of a prior art method

도2은 본 발명에 따른 부하개폐형 지상변압기의 루프회로도Figure 2 is a loop circuit diagram of a load switch type ground transformer according to the present invention

도3는 본 발명에 따른 부하개폐형 지상변압기에 형성된 스위치 실시도Figure 3 is an embodiment of the switch formed on the load-opening ground transformer according to the present invention

도4는 본 발명에 의한 부하개폐형 지상변압기의 스위치 구동도Figure 4 is a switch driving diagram of the load-opening ground transformer according to the present invention

*도면의 주요부분에 관한 부호의 설명** Explanation of symbols on main parts of drawings *

100 : 배전선로 200 : 선로개폐기100: distribution line 200: line breaker

300 : 지상변압기 400 : 스위치300: ground transformer 400: switch

A : 좌측루프단자 B : 우측루프단자A: Left loop terminal B: Right loop terminal

C : 입력단자C: Input terminal

본 발명은 상기한 목적을 달성하기 위하여 안출된 것으로서, 변전소로부터 연결된 배전선로를 구간별로 구분시키는 선로개폐기와 폐루프 선로를 이루며 결합된 지상변압기에 있어서, 상기 선로개폐기 및 지상변압기를 루프결합시키기 위하여 마련된 우측루프단자와; 상기 선로개폐기 및 지상변압기를 루프결합시키기 위하여 마련된 좌측루프단자와; 지상변압기의 입력단과 연결된 입력단자와; 상기 각 단자와 선택적으로 전기적 접속결합되는 스위치가 포함되어 구성되는 것을 특징으로 하는 부하개폐형 지상변압기를 기술적 요지로 한다.The present invention has been made in order to achieve the above object, in the ground transformer coupled to the line breaker and the closed loop line to divide the distribution line connected from the substation by section, in order to loop-couple the line breaker and ground transformer A right loop terminal provided; A left loop terminal provided to loop-couple the line breaker and the ground transformer; An input terminal connected to the input terminal of the ground transformer; Technical Field of the Invention A switchgear type ground transformer is characterized in that it comprises a switch which is electrically connected and coupled to each terminal.

상기 기술적 요지를 달성하기 위하여 본 발명의 상기 스위치는, 정상운전시에는 우측루프단자와 좌측루프단자 및 입력단자와 접속결합되어, 선로개폐기와 지상변압기가 폐루프를 형성시키면서 입력단자로 전원을 공급시키는 것을 특징으로 하는 부하개폐형 지상변압기로 되는 것이 바람직 하다.In order to achieve the technical gist, the switch of the present invention is connected to the right loop terminal, the left loop terminal, and the input terminal during normal operation, so that the line breaker and the ground transformer supply power to the input terminal while forming a closed loop. It is preferable that the load-opening type ground transformer is characterized in that the.

그리고 상기 스위치는, 지상변압기의 루프 우측에서 선로 또는 지상변압기의 고장사고가 발생되면 좌측루프단자와 입력단자만을 접속결합시켜, 사고 선로구간 또는 사고 지상변압기와 루프를 차단시키면서, 좌측루프단자로 공급되는 전원으로 입력단자에 전원을 공급시키는 것을 특징으로 하는 부하개폐형 지상변압기로 되는 것이 바람직 하다.The switch is connected to the left loop terminal and the input terminal only when the fault of the line or the ground transformer occurs on the right side of the loop of the ground transformer, and is supplied to the left loop terminal while disconnecting the fault line section or the ground transformer and the loop. It is desirable to be a load-opening type ground transformer, characterized in that to supply power to the input terminal with the power supply.

또한 상기 스위치는, 지상변압기의 루프 좌측에서 선로 또는 지상변압기의 고장사고가 발생되면 우측루프단자와 입력단자만을 접속결합시켜, 사고 선로구간 또는 사고 지상변압기와 루프를 차단시키면서, 우측루프단자로 공급되는 전원으로 입력단자에 전원을 공급시키는 것을 특징으로 하는 부하개폐형 지상변압기로 되는 것이 바람직 하다.In addition, the switch is connected to the right loop terminal and the input terminal only when the failure of the line or the ground transformer occurs in the left side of the loop of the ground transformer, and is supplied to the right loop terminal while disconnecting the accident line section or the accident ground transformer and loop. It is desirable to be a load-opening type ground transformer, characterized in that to supply power to the input terminal with the power supply.

그리고 상기 스위치는, 당해 지상변압기에서 전기 고장사고가 발생되면 좌측루프단자와 우측루프단자만을 접속결합시켜, 지상변압기로 인입되는 전원을 차단시키면서, 상기 선로개폐기 및 타 지상변압기를 루프결합시키는 것을 특징으로 하는 부하개폐형 지상변압기로 되는 것이 바람직 하다.And the switch connects and connects only the left loop terminal and the right loop terminal when an electrical failure occurs in the above ground transformer, and loops the line breaker and the other ground transformer while disconnecting power to the ground transformer. It is preferable to be a load-opening type ground transformer.

이하 도면과 함께 본 발명에 관하여 상세히 살펴보기로 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도2은 본 발명에 따른 부하개폐형 지상변압기의 루프회로도이고 도3는 본 발명에 따른 부하개폐형 지상변압기에 형성된 스위치 실시도이며, 도4는 본 발명에의한 부하개폐형 지상변압기의 스위치 구동도이다.Figure 2 is a loop circuit diagram of a load-opening ground transformer according to the present invention, Figure 3 is a switch embodiment of the load-opening ground transformer according to the present invention, Figure 4 is a switch driving diagram of the load-opening ground transformer according to the present invention. .

도면에 도시된 바와 같이, 본 발명은 변전소로부터 연결된 배전선로(100)를 구간별로 구분시키는 선로개폐기(200)와 폐루프 선로를 이루며 결합된 지상변압기(300)에 관한 것으로서, 구체적으로는 상기 선로개폐기(200) 및 지상변압기(300)를 루프결합시키기 위하여 마련된 우측루프단자(B)와 상기 선로개폐기(200) 및 지상변압기(300)를 루프결합시키기 위하여 마련된 좌측루프단자(A)와 지상변압기(300)의 입력단과 연결된 입력단자(C)와 상기 각 단자(A, B, C)와 선택적으로 전기적 접속결합되는 스위치(400)가 포함되어 구성되는 것을 특징으로 하는 부하개폐형 지상변압기이다.As shown in the figure, the present invention relates to a ground circuit breaker 300 and a closed loop line coupled to the line breaker 200 for separating the distribution line 100 connected from the substation by section, specifically, the line Right loop terminal B provided for loop coupling the switch 200 and the ground transformer 300 and left loop terminal A and ground transformer provided for loop coupling the line breaker 200 and the ground transformer 300. An input terminal (C) connected to the input terminal of the 300 and the switch 400 is a load-opening ground transformer, characterized in that it comprises a switch 400 which is selectively electrically connected to each of the terminals (A, B, C).

일반적으로 배전선로(100)는 선로구간의 고장시, 고장수리를 위하여 구간별로 차단스위치를 마련하여 두는 데 이를 선로개폐기(200)라 한다.In general, the distribution line 100 is provided with a switch for each section in order to repair the failure of the line section, this is called the line breaker (200).

상기 선로개폐기(200)의 설치구간에 따라 선로는 구간이 구별되고 상기 구간내에 형성된 지상변압기(300)를 통하여 수용가(500)로 전원을 공급시킨다.According to the installation section of the line breaker 200, the track sections are distinguished and supply power to the customer 500 through the ground transformer 300 formed in the section.

상기 지상변압기(300)는 통상 각 구간마다 복수개가 있기 마련이며, 각 지상변압기(300)는 상호 연결되어 상기 선로개폐기(200)의 선로와 함께 폐경로를 형성시킨다.The ground transformer 300 is usually provided with a plurality of each section, each ground transformer 300 is connected to each other to form a closed path with the line of the line breaker (200).

이하 지상변압기(300)를 기준으로는 폐경로 우측의 루프단을 우측루프라고 하고 좌측의 루프단을 좌측루프단이라고 하기로 한다.Hereinafter, based on the ground transformer 300, the loop stage on the right side of the menopause path will be referred to as the right loop and the loop stage on the left side will be referred to as the left loop stage.

본 발명은 지상변압기(300)에 우측루프단자(B)와 좌측루프단자(A) 및 지상변압기 입력단자(C)를 마련하고 상기 각 단자를 선택적으로 접속결합시키는스위치(400)를 형성시킨 것이다.The present invention is to form a switch 400 for providing the right loop terminal (B), the left loop terminal (A) and the ground transformer input terminal (C) in the ground transformer 300 and selectively connecting and coupling the respective terminals. .

상기 우측루프단자(B)는 우측루프와 지상변압기를 연결시키는 단자를 의미하며, 좌측루프단자(A)는 좌측루프와 지상변압기를 연결시키는 단자를 의미한다.The right loop terminal B refers to a terminal connecting the right loop and the ground transformer, and the left loop terminal A refers to a terminal connecting the left loop and the ground transformer.

상기 스위치(400)는 각 단자에 선택적으로 접속되기 위하여 도3에 도시된 바와 같은 T바 스위치로 되는 것이 바람직 하나, 이에 한정되는 것은 아니며, 택트스위치의 조합에 의하여도 구성 가능하다.The switch 400 is preferably a T-bar switch as shown in FIG. 3 to be selectively connected to each terminal, but is not limited thereto. The switch 400 may also be configured by a combination of tact switches.

이하 도2와 도4를 참고로 하여 본 발명에 관하여 살펴보기로 하자.Hereinafter, the present invention will be described with reference to FIGS. 2 and 4.

도3의 T바 스위치는 회동에 의하여 도4에 도시된 바와 같이 각 단자와의 결합이 결정된다.As shown in Fig. 4, the T bar switch of Fig. 3 is rotated to determine the coupling with each terminal.

도4a에 도시된 바와 같이 정상상태일 경우에는 좌우루프를 통하여 지상변압기로 전원이 인입된다.In the steady state as shown in FIG. 4A, power is supplied to the ground transformer through the left and right loops.

즉, 상기 스위치(400)가 좌 우측 루프를 형성시키면서 입력단자(C)와 결합되면 지상변압기(300)에 정상적인 입력이 인가된다.That is, when the switch 400 is coupled to the input terminal C while forming a left-right loop, a normal input is applied to the ground transformer 300.

도4b, 도4c, 도4d는 고장상태의 스위칭도이며, 좌측루프선로의 고장과 우측루프선로의 고장 그리고 당해 지상변압기(300)의 고장으로 구분된다.4B, 4C, and 4D are switching diagrams in a fault state, and are classified into a failure of a left loop line, a failure of a right loop line, and a failure of the ground transformer 300.

도4c에 도시된 바와 같이 우측루프선로에서 고장이 발생되면, 상기 스위치(400)는, 좌측루프단자(A)와 입력단자(C) 만을 접속결합되도록 한다.As shown in FIG. 4C, when a failure occurs in the right loop line, the switch 400 connects only the left loop terminal A and the input terminal C to each other.

상기 T바 스위치(400)의 회동으로 원하는 단자와의 접속결합을 달성할 수 있으며, 기타 택트스위치등의 조합으로 이를 달성시키는 것도 가능할 것이다.Rotation of the T-bar switch 400 can achieve a connection coupling with the desired terminal, it will also be possible to achieve this in combination with other tact switches.

상기 스위치(400)의 회동으로 좌측루프단자(A)와 입력단자(C) 만을 접속결합되도록 하면, 사고 선로구간 또는 사고 지상변압기가 위치하는 우측루프 선로는 차단되면서, 지상변압기(300)는 좌측루프단자(A)로부터 전원이 공급되어 정상 작동된다.When only the left loop terminal A and the input terminal C are connected to each other by the rotation of the switch 400, the right loop line where the accident line section or the accident ground transformer is located is blocked, and the ground transformer 300 is left. Power is supplied from the loop terminal A to operate normally.

반대로 도4b에 도시된 바와 같이 좌측루프선로에서 고장이 발생되면, 상기 스위치(400)는, 우측루프단자(B)와 입력단자(C) 만을 접속결합되도록 한다.On the contrary, as shown in FIG. 4B, when a failure occurs in the left loop line, the switch 400 connects only the right loop terminal B and the input terminal C to each other.

상기 스위치(400)의 회동으로 우측루프단자(B)와 입력단자만을 접속결합되도록 하면, 사고 선로구간 또는 사고 지상변압기가 위치하는 좌측루프 선로는 차단되면서, 지상변압기는 우측루프단자(B)로부터 전원이 공급되어 정상 작동된다.When only the right loop terminal B and the input terminal are connected to each other by the rotation of the switch 400, the left loop line where the accident line section or the accident ground transformer is located is blocked, and the ground transformer is separated from the right loop terminal B. Power is supplied and normal operation.

한편 당해 지상변압기가 고장난 경우에는 상기 스위치(400)를 좌측루프단자(A)와 우측루프단자(B)만 접속결합시킴으로써, 당해 지상변압기(300)로 인입되는 전원은 차단시키면서, 상기 선로개폐기(200) 및 타 지상변압기(300)를 루프결합시키게 된다.On the other hand, when the ground transformer is broken, the switch 400 is connected to only the left loop terminal A and the right loop terminal B so that the power flowing into the ground transformer 300 is cut off while the line breaker ( 200) and the other ground transformer 300 is loop-coupled.

이상 설명한 루프차단 구조는 루프 전체를 보면 고장 구간은 전원을 차단시켜 고장공사를 실시할 수 있도록 하고, 정상적인 지상변압기 구간은 정상 구동 되도록 하는 특징이 있다.The loop blocking structure described above is characterized in that when the entire loop is broken, the fault section cuts off power so that breakdown work can be performed, and the normal ground transformer section is normally operated.

이상 설명한 본 발명에 의하여, 선로 구간의 사고가 발생되면 사고 구간만 국부적으로 차단시키는 배전경로를 형성되는 부하개폐형 지상변압기가 제공되는 이점이 있다.According to the present invention described above, there is an advantage that a load-opening and ground-type ground transformer is provided to form a distribution path to locally block only the accident section when an accident of the track section occurs.

또한 고장외 구간은 정상 작동되도록 하는 부하개폐형 지상변압기가 제공되는 이점이 있다.In addition, there is an advantage that the load-opening ground transformer is provided for the non-fault section to operate normally.

Claims (5)

변전소로부터 연결된 배전선로를 구간별로 구분시키는 선로개폐기(200)와 폐루프 선로를 이루며 결합된 지상변압기(300)에 있어서,In the ground transformer 300 coupled to the circuit breaker 200 and the closed loop line to separate the distribution line connected from the substation for each section, 상기 선로개폐기(200) 및 지상변압기(300)를 루프결합시키기 위하여 마련된 우측루프단자(B)와;A right loop terminal (B) provided to loop-couple the line breaker (200) and the ground transformer (300); 상기 선로개폐기(200) 및 지상변압기(300)를 루프결합시키기 위하여 마련된 좌측루프단자(A)와;A left loop terminal (A) provided to loop-couple the line breaker (200) and the ground transformer (300); 지상변압기의 입력단과 연결된 입력단자(C)와;An input terminal C connected to the input terminal of the ground transformer; 상기 각 단자와 선택적으로 전기적 접속결합되는 스위치(400)가 포함되어 구성되는 것을 특징으로 하는 부하개폐형 지상변압기.Load switch type ground transformer, characterized in that comprises a switch 400 is electrically connected and coupled to each terminal selectively. 제1항에 있어서 상기 스위치(400)는,The method of claim 1, wherein the switch 400, 정상운전시에는 우측루프단자(B)와 좌측루프단자(A) 및 입력단자(C)와 접속결합되어,In normal operation, it is connected to the right loop terminal (B), the left loop terminal (A) and the input terminal (C), 선로개폐기(200)와 지상변압기(300)가 폐루프를 형성시키면서 입력단자(C)로 전원을 공급시키는 것을 특징으로 하는 부하개폐형 지상변압기.Load switch type ground transformer, characterized in that for supplying power to the input terminal (C) while the line breaker 200 and the ground transformer 300 forms a closed loop. 제2항에 있어서 상기 스위치(400)는,The method of claim 2, wherein the switch 400, 지상변압기(300)의 루프 우측에서 선로 또는 지상변압기의 고장사고가 발생되면 좌측루프단자(A)와 입력단자(C)만을 접속결합시켜,If a failure of the line or the ground transformer occurs on the right side of the loop of the ground transformer 300, only the left loop terminal A and the input terminal C are connected to each other. 사고 선로구간 또는 사고 지상변압기와 루프를 차단시키면서, 좌측루프단자(A)로 공급되는 전원으로 입력단자(C)에 전원을 공급시키는 것을 특징으로 하는 부하개폐형 지상변압기.Load switching type ground transformer, characterized in that for supplying power to the input terminal (C) with the power supplied to the left loop terminal (A) while blocking the accident line section or accident ground transformer and loop. 제3항에 있어서 상기 스위치(400)는,According to claim 3, The switch 400, 지상변압기(300)의 루프 좌측에서 선로 또는 지상변압기의 고장사고가 발생되면 우측루프단자(B)와 입력단자(C) 만을 접속결합시켜,If a failure of the line or the ground transformer occurs on the left side of the loop of the ground transformer 300, only the right loop terminal B and the input terminal C are connected to each other. 사고 선로구간 또는 사고 지상변압기(300)와 루프를 차단시키면서, 우측루프단자(B)로 공급되는 전원으로 입력단자(C)에 전원을 공급시키는 것을 특징으로 하는 부하개폐형 지상변압기.Load switching type ground transformer, characterized in that for supplying power to the input terminal (C) by the power supplied to the right loop terminal (B) while blocking the accident line section or accident ground transformer (300). 제4항에 있어서 상기 스위치(400)는,The method of claim 4, wherein the switch 400, 당해 지상변압기(300)에서 전기 고장사고가 발생되면 좌측루프단자(A)와 우측루프단자(B) 만을 접속결합시켜,When an electrical failure occurs in the ground transformer 300, only the left loop terminal A and the right loop terminal B are connected and connected. 지상변압기(300)로 인입되는 전원을 차단시키면서, 상기 선로개폐기(200) 및 타 지상변압기를 루프결합시키는 것을 특징으로 하는 부하개폐형 지상변압기.The load-opening type ground transformer, characterized in that for looping the power to the ground transformer 300, the line breaker 200 and the other ground transformer loop.
KR1020020038034A 2002-07-02 2002-07-02 Load switching transformer KR20020067902A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04251521A (en) * 1990-12-28 1992-09-07 Ngk Insulators Ltd Rapid isolating system for accident section
JPH0819180A (en) * 1994-06-29 1996-01-19 Nissin Electric Co Ltd Normal service spare changeover type receiving installation
JPH09233685A (en) * 1996-02-22 1997-09-05 Fuji Electric Co Ltd Distribution line section switch controller
JP2000295764A (en) * 1999-04-01 2000-10-20 Hitachi Ltd Distribution facility circuit
KR20030037806A (en) * 2001-11-06 2003-05-16 한국전력공사 The apparatus of transformer with a built-in switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04251521A (en) * 1990-12-28 1992-09-07 Ngk Insulators Ltd Rapid isolating system for accident section
JPH0819180A (en) * 1994-06-29 1996-01-19 Nissin Electric Co Ltd Normal service spare changeover type receiving installation
JPH09233685A (en) * 1996-02-22 1997-09-05 Fuji Electric Co Ltd Distribution line section switch controller
JP2000295764A (en) * 1999-04-01 2000-10-20 Hitachi Ltd Distribution facility circuit
KR20030037806A (en) * 2001-11-06 2003-05-16 한국전력공사 The apparatus of transformer with a built-in switch

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