KR20090012462A - A replacing method of transformer for an electric consumption facility of high voltage without interrupting power supply - Google Patents

A replacing method of transformer for an electric consumption facility of high voltage without interrupting power supply Download PDF

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Publication number
KR20090012462A
KR20090012462A KR1020070076291A KR20070076291A KR20090012462A KR 20090012462 A KR20090012462 A KR 20090012462A KR 1020070076291 A KR1020070076291 A KR 1020070076291A KR 20070076291 A KR20070076291 A KR 20070076291A KR 20090012462 A KR20090012462 A KR 20090012462A
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South Korea
Prior art keywords
transformer
voltage
faucet
cable
mobile
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KR1020070076291A
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Korean (ko)
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이철호
이용순
안진섭
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주식회사 평일
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Priority to KR1020070076291A priority Critical patent/KR20090012462A/en
Publication of KR20090012462A publication Critical patent/KR20090012462A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
    • H02B1/056—Mounting on plugboards
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

An uninterruptible replacing method of a transformer for high voltage consumer is provided to prevent discomfort or economic losses of low voltage consumers by rapidly replacing a transformer for high voltage consumer in non-power failure condition of the low voltage consumer. A transforming train(70) moves to a building for high voltage consumers. A by-pass cable(71) connected to the secondary side of the transforming train is installed at a switchgear. The transforming train is connected to a primary side(high voltage side) of a peripheral transformer(80). First and second switches of the transforming train are successively turned on. Therefore, the power source is supplied to the transforming train. The secondary side(low voltage side) of a transformer(20) for replacement and the by-pass cable are looped together. A breaker(30) of the switchgear is turned off. The primary side terminal of the transformer for replacement is separated. The new transformer is installed.

Description

고압수용가용 수전변압기의 무정전 교체방법{A REPLACING METHOD OF TRANSFORMER FOR AN ELECTRIC CONSUMPTION FACILITY OF HIGH VOLTAGE WITHOUT INTERRUPTING POWER SUPPLY}A REPLACING METHOD OF TRANSFORMER FOR AN ELECTRIC CONSUMPTION FACILITY OF HIGH VOLTAGE WITHOUT INTERRUPTING POWER SUPPLY}

본 발명은 무정전 공법에 의한 건물의 고압수용가용 수배전반의 수전변압기 교체방법에 관한 것으로서, 더욱 구체적으로는 고압수용가의 건물 내부에 설비된 수배전반의 노후된 교체대상 수전변압기나 고용량의 수전변압기로의 교체시에 저압수용가의 무정전 상태하에서 간편하고 빠른 시간 내에 교체함으로써 건물 내의 사무실이나 가정 등과 같은 저압 수용가의 불편이나 경제적 손실의 발생을 방지할 수 있는 고압수용가용 수전변압기의 무정전 교체방법에 관한 것이다.The present invention relates to a method for replacing a power transformer of a high-voltage water-soluble switchgear of a building by an uninterruptible method, and more particularly, when replacing the old switchgear transformer or a high-capacity power transformer of a power switchgear installed inside a building of a high-pressure water-soluble battery. The present invention relates to an uninterruptible replacement method of a high-voltage receiving faucet transformer capable of preventing the occurrence of inconvenience or economic loss of a low-voltage consumer such as an office or a home in a building by replacing it in a simple and quick time under an uninterrupted state of a low-pressure faucet.

일반적으로 수배전반은 전력을 필요하는 공장, 빌딩, 병원, 아파트 단지 및 각종 산업시설(고압수용가) 등에 한전으로부터 공급된 특고압(22.9KV)의 전기를 실제 사용하는 각종 설비와 장비의 정격에 맞는 낮은 전압(220/380V) 및 정격 용량으로 변환시켜 전기 시설물을 안전하게 사용할 수 있도록 조작, 제어 및 감시하는 장 치이다.In general, the switchgear is low in line with the ratings of various facilities and equipment that use electricity of special high voltage (22.9KV) supplied from KEPCO to factories, buildings, hospitals, apartment complexes, and various industrial facilities (high voltage consumers) that require electric power. It is a device that operates, controls, and monitors electrical facilities for safe use by converting them into voltage (220 / 380V) and rated capacity.

이러한 수배전반의 내부는 특고압측과 저압측으로 구성되며, 전력제공자인 한전에서 전기를 받는 수전설비와, 이 수전설비를 통해 수전된 전기를 사용자가 필요로 하는 전압 또는 용량으로 변경 공급하는 변압기 혹은 정전사고 등과 같은 사고로부터 전체 설비를 보호하는 차단기 등을 구비한 배전설비를 갖고 있다.The inside of the switchgear is composed of a special high voltage side and a low voltage side, a power receiving facility that receives electricity from KEPCO, a power provider, and a transformer or power failure to change and supply electricity received through this power receiving facility to the voltage or capacity required by the user. It has a distribution system equipped with a circuit breaker and the like that protects the entire facility from an accident such as an accident.

이러한 수배전반(10)의 개략적인 구조에 대하여 도 1을 참조하여 설명하면,Referring to FIG. 1 for a schematic structure of such a switchgear 10,

소정의 크기를 갖는 함체 내에 특고압을 저압으로 변환하는 수전변압기(20)와, 건물의 외부에 설비된 지상개폐기(1)와 상별 외부 전력케이블(2)로 접속되어 특고압 인입선로를 스위칭하도록 수전설비 인입부에 접속된 차단기(Circuit Breaker)(30), 계량기(계기용 변류기)(40), 상별 충전접속부(50) 등이 배치된다. 그리고 상기 수전변압기(20)는 상기 충전접속부(50)을 통하여 전원을 공급받도록 접속 배치되고, 상기 수전변압기(20)는 건물 내부의 각 사무실, 가정과 같은 수용가(60)에 저압(2차)측 케이블(21)을 통하여 저전압(220V/380V)의 전기를 공급하게 되어 있다.In order to switch the special high voltage incoming line, it is connected to the power receiving transformer 20 for converting the special high pressure to low pressure in the enclosure having a predetermined size, and the ground switch 1 installed outside the building and the external power cable 2 for each phase. A circuit breaker 30 connected to the power receiving facility inlet, a meter (current transformer for meter) 40, a phase charging connection unit 50, and the like are disposed. In addition, the faucet transformer 20 is connected to receive power through the charging connection unit 50, the faucet transformer 20 is a low pressure (secondary) side to the consumer 60, such as each office, home inside the building The low voltage (220V / 380V) of electricity is supplied through the cable 21.

현재 이러한 수전변압기(20)는 10년 이상 노후하고 용량이 적은 아파트나 빌딩과 같은 건물이 많이 있다.Currently, the faucet transformer 20 has a lot of buildings, such as apartments or buildings that are more than 10 years old and less capacity.

따라서, 전력 사용이 급증하는 여름철의 과부하로 발생되는 정전사고를 예방하기 위해서는 상기와 같이 노후된 수전변압기(10)의 교체가 필요하다.Therefore, in order to prevent a power failure caused by an overload in the summer when the use of power increases rapidly, it is necessary to replace the aged faucet transformer 10 as described above.

본 발명의 범주는 이러한 수배전반(10)에 설비되어 장기간 사용으로 노후된 수전변압기(20)의 교체가 필요할 때, 수용가(60)에 공급되는 전기의 정전이 없이 무정전으로 교체하는 방법에 속한다.The scope of the present invention belongs to the method of replacing the uninterrupted power supply without the power failure of the electric power supplied to the customer 60, when it is necessary to replace the faucet transformer 20 that is installed in such a switchgear (10) long-term use.

즉, 종래의 수전변압기의 노후화나 과부하에 의한 정상적으로 동작하는 신설 수전변압기로의 교체하는 방법은,That is, the method of replacing the conventional faucet transformer with a new faucet transformer that operates normally due to aging and overload,

건물의 수배전반(10)에 구축된 차단기(30)를 반드시 오프한 상태로 저압 수용가(사무실, 가정)를 모두 정전시킨 후에 정상적으로 동작하는 수전변압기로 교체하는 방식으로 이루어진다.The breaker 30 built in the switchgear 10 of the building must be turned off in a state in which the low-voltage consumer (office, home) is all blackout, and then replaced with a normally operated power transformer.

이러한 교체방식은 건물의 사무실, 아파트 단지의 가정의 전력 차단(정전)이 불가피하게 됨으로서, 상당한 불편을 줄 뿐더러 경제적인 손실이 유발된다.This replacement method inevitably shuts down the power in the offices of buildings and apartment complexes, which causes considerable inconvenience and economic losses.

본 발명은 고압수용가의 수배전반에 설비된 노후화되거나 용량이 적은 수전변압기를 무정전 상태에서 간편하고 신속하게 고용량의 신설 수전변압기로 교체하여 건물에 입주한 사무실이나 가정 등의 저압 수용가의 불편이나 경제적인 손실을 방지할 수 있는 고압수용가용 수전변압기의 무정전 교체방법를 제공함에 있다.The present invention is to replace the old or low-capacity faucet transformer installed in the switchgear of the high-pressure consumer with a high capacity new faucet transformer easily and quickly in an uninterrupted state, the inconvenience or economical loss of low-voltage consumers, such as offices or homes in the building The present invention provides an uninterruptible replacement method of a high-voltage water-soluble faucet transformer that can prevent the damage.

상기 과제를 해결하기 위해 본 발명의 고압수용가용 수전변압기의 무정전 교체방법은,In order to solve the above problems the uninterruptible replacement method of the high-voltage water-soluble faucet transformer of the present invention,

고압수용가 건물에 이동용 변압기차를 이동하고 수배전반에 걸쳐 바이패스 케이블의 포설단계;Moving the transformer car to the high-voltage water duct in the building and laying the bypass cable over the switchboard;

이동용 변압기차와 주변 지상변압기(가공선로, 지상개폐기)의 1차측(고압측)을 접속하여 이동용 변압기차에 전원을 공급단계;Supplying power to the mobile transformer car by connecting a primary transformer (high voltage side) of the mobile transformer car and the surrounding ground transformer (a processing line, the ground breaker);

이동용 변압기차의 1/2차 스위치 투입단계;A half-stage switch input step of the mobile transformer car;

교체 대상 수전변압기의 2차측(저압측)과 이동용 변압기차의 2차측 접속 바이패스케이블과의 루프화 및 교체대상 수전변압기의 2차측 저압케이블의 분리 단계;Looping the secondary side (low voltage side) of the replacement power receiving transformer and the secondary side connection bypass cable of the mobile transformer vehicle and separating the secondary low voltage cable of the replacement power receiving transformer;

수배전반의 차단기의 오프(OFF) 단계;An OFF step of the circuit breaker of the switchboard;

교체대상 수전변압기의 1차측 단자를 분리하고 신설 수전변압기로 교체하는 단계;Separating the primary terminal of the replacement faucet transformer and replacing it with a new faucet transformer;

신설 수전변압기의 1차측(고압)의 단자 재접속 단계;Reconnecting the terminal on the primary side (high voltage) of the new power receiving transformer;

수배전반의 차단기 온(ON) 단계;A circuit breaker (ON) step of the switchboard;

신설 수전변압기의 2차측(저압측) 저압케이블의 연결단계;Connecting the low voltage cable of the secondary side (low voltage side) of the new faucet transformer;

이동용 변압기차의 1/2차(고압/저압) 스위치 오프단계;Switching off the 1/2 (high / low pressure) switch of the mobile transformer vehicle;

이동용 변압기차의 2차측 바이패스케이블 및 1차측 특고압 케이블의 철거단계;Dismantling the secondary bypass cable and the primary side high-voltage cable of the mobile transformer vehicle;

를 통해 고압 수용가용 수전변압기를 무정전으로 교체하는 것을 특징으로 한다.It is characterized by replacing the high-pressure water-soluble faucet transformer with an uninterruptible.

이러한 본 발명에 의하면, 종래의 건물의 고압수용가용에 전원을 공급하는 노후되거나 저용량의 수전변압기를 고용량의 신설 수전변압기로의 교체가 무정전 상태에서 간편하고 신속하게 교체할 수 있어 건물의 사무실이나 가정 등과 같은 수용가의 불편이나 경제적인 손실의 발생을 방지할 수 있는 효과가 있다.According to the present invention, it is possible to replace the old or low-capacity faucet transformer supplying power to the high-voltage water supply of the conventional building with a high-capacity new faucet transformer easily and quickly in an uninterrupted state, so that the office or home of the building There is an effect that can prevent the occurrence of inconvenience or economic loss of the consumer, such as.

이하, 본 발명을 첨부된 도면에 의거하여 보다 구체적으로 살펴본다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 1은 고압수용가용 수전변압기의 무정전 교체방법을 설명하기 위한 본 발명의 개요도로서, 무정전으로 수전변압기(20)를 교체하고자 하는 경우에 바이패스 케이블(by-pass cable) 공법을 적용하여 활선상태로 고압수용가의 건물 내의 각 저압 수용가(60)에 전원을 공급하면서 수배전반(10) 내에 설비된 수전변압기(20)를 교체하기 위한 결선 상태를 보여주고 있다.1 is a schematic view of the present invention for explaining an uninterruptible replacement method of a high-voltage receiving faucet transformer, a live state by applying the bypass cable (by-pass cable) method in the case of replacing the faucet transformer 20 uninterrupted It shows the connection state for replacing the power receiving transformer 20 installed in the switchgear 10 while supplying power to each of the low-voltage consumer 60 in the building of the high-pressure water heater.

도 2는 이러한 도 1의 개요도에 의해 고압수용가용 수전변압기의 무정전 교체방법 작업 흐름도로서, 이를 참조하여 구체적으로 살펴보면,FIG. 2 is a flowchart illustrating an uninterruptible replacement method of a high-voltage receiving faucet transformer according to the schematic diagram of FIG. 1.

모든 작업에 앞서 고압수용가 건물의 도로에 교통 통제표식 설치, 안전입간판 설치하고, 이동용 변압기차(70)을 이동하여 위치설정하며, 안전작업 장구 준비 및 주변의 지상변압기의 위치를 확인하는 준비작업을 선행한다.Prior to all the work, the traffic control sign is installed on the road of the high-pressure water resident building, the safety signboard is installed, and the mobile transformer car 70 is moved and positioned, and the preparation work for the preparation of safety work equipment and the location of the ground transformer in the vicinity Precedes.

그리고 작업자는 활선작업 계획서의 숙지와 작업내용을 잘 숙지한 안전회의를 거친 후, 즉 준비작업 및 안전회의를 거친 후에 본 발명을 실시하게 된다.And the worker is to carry out the present invention after a safety meeting that is familiar with the work schedule and work content well, that is, after the preparation work and safety meeting.

이렇게 작업준비를 완료한 후에 이동용 변압기차(70)에서 고압수용가용 수배전반(10) 까지 바이패스 케이블(71)을 포설한다.After the work preparation is completed, the bypass cable 71 is installed from the mobile transformer car 70 to the high-voltage water-soluble switchgear 10.

즉, 고압수용가 건물에 이동용 변압기차(70)를 이동하고, 이동용 변압기차의 2차측(저압측)에 접속된 바이패스케이블(71)을 고압수용가의 건물 수배전반(10)에 걸쳐 포설하는 단계를 취한다.That is, the step of moving the moving transformer car 70 to the high-voltage consumer building, and laying the bypass cable 71 connected to the secondary side (low pressure side) of the mobile transformer vehicle over the building switchgear 10 of the high-voltage consumer building Take it.

이어서, 이동용 변압기차(70)의 1차측(고압측)에 접속된 특고압케이블(72)을 주변 지상변압기(가공선로, 지상개폐기)(80)의 1차측에 상별 접속하여 전원을 공급 받게 된다.Subsequently, the extra high voltage cable 72 connected to the primary side (high pressure side) of the mobile transformer car 70 is connected to the primary side of the peripheral ground transformer (processing line, ground breaker) 80 to be supplied with power. .

이때, 주변변압기(80)와의 활선상태로 상기 특고압케이블(72)의 접속은 본 출원인의 선출원 기술인 특허 제2006-56908호 및 제2007-29292호의 '엘보접속재 활선 개폐장치'와 특허 제2006-67406호의 '무정전 공법에 의한 변압기 교체용 1차측 접속장치'를 이용하여 접속하게 된다.At this time, the connection of the extra-high voltage cable 72 in a live state with the peripheral transformer 80 is the 'elbow connection member live switchgear device' and the patent application 2006-56908 and 2007-29292 of the applicant's prior application technology Connection is made using 67406, Primary Connection Device for Transformer Replacement by Uninterrupted Method.

즉, 이동용 변압기차(70)와 주변 지상변압기(가공선로, 지상개폐기)(80)의 1차측을 상호간 접속하여 상기 이동용 변압기차(70)에 전원을 공급하는 단계를 취하게 된다.That is, the step of supplying power to the mobile transformer car 70 by connecting the primary side of the mobile transformer car 70 and the surrounding ground transformer (processing line, ground switch) 80 with each other.

이러한 주변 지상변압기(가공선로, 지상개폐기)(80)에 의해 상기 이동용 변압기차(70)에 전원을 접속한 상태에서 이동용 변압기차(70)의 스위치를 1차측(고압), 2차측(저압)의 순서로 조작하여 전원을 투입하게 된다.The switch of the mobile transformer car 70 is switched to the primary side (high pressure) and secondary side (low pressure) in a state in which power is connected to the mobile transformer car 70 by the surrounding ground transformers (processing line, ground switch). Turn on the power by operating in the order of.

즉, 이동용 변압기차(70)의 1차측인 고압과 2차측인 저압의 스위치를 조작하여 전원을 투입하는 단계를 취한다.That is, the step of turning on the power by operating the switch of the high pressure which is the primary side and the low pressure which is the secondary side of the mobile transformer car 70 is taken.

이렇게 이동용 변압기차(70)의 전원을 투입한 후, 2차측(저압측)에 연결된 바이패스케이블(71)을 이용하여 교체대상의 수전변압기(20)의 2차측 저압케이블(21)에 저압접속장치(22)에 의해 접속하여 루프화하고 분리하게 한다.After the power supply of the mobile transformer car 70 is turned on, the low voltage connection is made to the secondary low voltage cable 21 of the power receiving transformer 20 to be replaced using a bypass cable 71 connected to the secondary side (low voltage side). Connected by means of the device 22 to loop and disconnect.

이때, 수전변압기(20)의 2차측 루프화는 사용 중인 모든 수전변압기를 포함하고, 저압케이블(21)의 분리는 교체대상의 수전변압기(20)에 한정한다.At this time, the secondary loop of the power receiving transformer 20 includes all of the power receiving transformers in use, and the separation of the low voltage cable 21 is limited to the power receiving transformer 20 to be replaced.

그리고 이러한 수전변압기(20)의 2차측과의 활선상태로 루프화를 위한 상기 바이패스케이블(71)의 접속은 본 출원인의 선출원 기술인 특허출원 제2006-67411호의 '지상변압기의 저압케이블 분리용 클립형 접속장치', 제2006-67412호의 '지상변압기의 저압케이블 분리용 집게형 접속장치', 제2006-95346호의 '지상변압기의 저압케이블 분리용 편조선형 접속장치' 등의 저압접속장치(22)을 이용하겨 접속하고 저압케이블(21)을 분리하게 된다.And the connection of the bypass cable 71 for looping in the live state with the secondary side of the power receiving transformer 20 is the clip-type for separating the low voltage cable of the ground transformer of the patent application 2006-67411 Low pressure connection devices 22, such as "connection device", "clamp-type connection device for separating low voltage cables of ground transformers" of 2006-67412, and "braided wire connection devices for separating low voltage cables of ground transformers" of 2006-95346. The low voltage cable 21 is disconnected.

즉, 수전변압기(20)의 2차측(21)과 바이패스케이블(71)과의 루프화 단계 및 저압케이블(21)의 분리단계를 취한다.That is, a looping step between the secondary side 21 of the power receiving transformer 20 and the bypass cable 71 and a separation step of the low voltage cable 21 are taken.

이러한 단계를 취한 후, 수배전반(10)의 차단기(30)를 오프시키게 된다.After taking this step, the breaker 30 of the switchboard 10 is turned off.

이러한 상태에서도 각 저압수용가(60)는 주변 변압기(80)로부터 이동용 변압기차(70)를 경유하여 전원이 지속적으로 공급되어 상기 저압 수용가(사무실, 가정)(60)는 전기를 지속적으로 공급받는 무전정 상태이다.Even in such a state, each low voltage consumer 60 is continuously supplied power from the peripheral transformer 80 via the mobile transformer car 70 so that the low pressure consumer (office, home) 60 is continuously supplied with electricity It is still.

이러한 단계를 취한 후에 교체대상의 수전변압기(20)의 1차측에 접속된 단자를 모두 분리하고, 수배전반(10)으로부터 교체대상 수전변압기(20)을 꺼낸 후에 그 위치에 신설 수전변압기를 투입한다.After taking these steps, all the terminals connected to the primary side of the replacement power receiving transformer 20 are disconnected, and after removing the replacement power receiving transformer 20 from the power distribution panel 10, the new power receiving transformer is put into the position.

즉, 교체대상 수전변압기(20)를 분리하고 신설 수전변압기로 교체하는 단계를 취한다.That is, it takes a step of removing the replacement target power transformer 20 and replaced with a new power transformer.

이러한 단계를 취한 후, 신설 수전변압기의 1차측에 분리된 고압의 단자를 재접속한다.After taking these steps, the high-voltage terminals separated on the primary side of the new faucet transformer are reconnected.

이러한 1차측의 단자 접속도 상기한 본 출원인의 선출원 기술인 특허 제2006-56908호 및 제2007-29292호의 '엘보접속재 활선 개폐장치'와 특허 제2006-67406호의 '무정전 공법에 의한 변압기 교체용 1차측 접속장치'를 이용하여 접속하게 된다.The terminal connection on the primary side is also the primary side for transformer replacement by the 'elbow connection member live switchgear' of the patent application Nos. 2006-56908 and 2007-29292 and the uninterruptible method of Patent No. 2006-67406. The connection device is used to connect.

그리고 이러한 신설 수전변압기의 1차 분리와 접속과정은 상기 선출원 기술에 상세히 언급되어 있음으로 설명은 생략한다.In addition, since the first separation and connection process of the new faucet transformer is mentioned in detail in the above-described application technology, description thereof will be omitted.

이렇게 신설 수전변압기의 1차측 전원 투입 후에 수배전반(10)의 차단기(30)를 온 작동하게 된다.Thus, the circuit breaker 30 of the switchgear 10 is turned on after the primary power supply of the new power transformer is turned on.

이때, 상기 교체대상 수전변압기(20)에 분리된 1차측의 단자는 상기의 교체작업 단계에서 사선상태로 연결하게 된다.At this time, the terminal of the primary side separated from the replacement receiving power transformer 20 is connected in a diagonal state in the replacement operation step.

이러한 단계를 취한 후, 신설 수전변압기의 2차측(21)에 상기 분리된 2차측 저압케이블(부싱포함)을 접속하고, 상기 저압접속장치(22)를 철거하게 된다.After this step is taken, the separated secondary low voltage cable (including bushings) is connected to the secondary side 21 of the new power receiving transformer, and the low pressure connection device 22 is removed.

즉, 신설 수전변압기의 2차측(저압)의 연결단계를 취한다.That is, the connection step of the secondary side (low pressure) of a new faucet transformer is taken.

이러한 단계 후, 이동용 변압기차(70)의 1차측 고압 스위치와 2차측 저압스위치를 오프 동작하게 된다.After this step, the primary side high pressure switch and the secondary side low pressure switch of the mobile transformer car 70 are turned off.

이때의 스위치 조작순서는 저압측의 2차 스위치 조작 후에 고압측의 1차스위치를 조작하게 된다.At this time, the switch operation procedure operates the primary switch on the high pressure side after the secondary switch operation on the low pressure side.

이러한 단계를 취한 후 이동용 변압기차(70)의 바이패스케이블(71)과 주변변압기(80)에 접속된 특고압케이블(72)을 분리 철거와, 교통 통제표식 및 안전입각판을 철거하는 단계의 일련 과정으로 교체대상의 수전변압기(20)을 무정전 상태에서 교체하는 작업을 완료하게 된다.After taking these steps, the bypass cable 71 of the mobile transformer car 70 and the extra high voltage cable 72 connected to the peripheral transformer 80 are separated and dismantled, and the traffic control sign and safety stand plate are removed. In the series process, the replacement of the power receiving transformer 20 to be replaced in an uninterrupted state is completed.

즉, 본 발명은 건물과 같은 고압수용가의 수배전반에 설비된 수전변압기(20)의 노후되거나 과부하로 인한 사용의 제약이 있는 수전변압기를 안전하고 신속하게 신설 변압기로의 교체가 저압수용가의 전원을 정전하지 않고 무정전으로 교체할 수 있다.That is, the present invention safely and quickly replace the new transformer with a power transformer that has restrictions of use due to aging or overload of the power transformer 20 installed in the switchgear of the high-voltage consumer, such as a building, power failure of the low-voltage consumer Can be replaced uninterrupted.

도 1은 고압수용가용 수전변압기의 무정전 교체방법을 설명하기 위한 본 발명의 개요도.1 is a schematic diagram of the present invention for explaining an uninterruptible replacement method of a high-voltage water-soluble faucet transformer.

도 2는 본 발명의 고압수용가용 수전변압기의 무정전 교체방법 작업 흐름도.Figure 2 is a flow chart of the uninterruptible replacement method of the high-voltage water-soluble faucet transformer of the present invention.

** 도면의 주요부분에 대한 부호의 설명 **** Explanation of symbols for main parts of drawings **

20: 교체대상 수전변압기 21: 저압측케이블20: Replaceable power transformer 21: Low voltage side cable

30: 차단기 60: 저압 수용가30: breaker 60: low pressure consumer

70: 이동용 변압기차 71:(2차측)바이패스케이블70: mobile transformer car 71: (secondary side) bypass cable

72: (1차측)특고압케이블 72: (primary side) special high voltage cable

80: 주변 지상변압기(가공선로, 지상 개폐기)80: Peripheral ground transformers (working line, ground switch)

Claims (1)

고압수용가 건물에 이동용 변압기차를 이동하고 수배전반에 걸쳐 바이패스 케이블의 포설단계;Moving the transformer car to the high-voltage water duct in the building and laying the bypass cable over the switchboard; 이동용 변압기차와 주변 지상변압기(가공선로, 지상개폐기)의 1차측(고압측)을 접속하여 이동용 변압기차에 전원을 공급단계;Supplying power to the mobile transformer car by connecting a primary transformer (high voltage side) of the mobile transformer car and the surrounding ground transformer (a processing line, the ground breaker); 이동용 변압기차의 1/2차 스위치 투입단계;A half-stage switch input step of the mobile transformer car; 교체 대상 수전변압기의 2차측(저압측)과 이동용 변압기차의 2차측 접속 바이패스케이블과의 접속에 의한 루프화 및 교체대상 수전변압기의 2차측 저압케이블의 분리 단계;A step of looping by connecting the secondary side (low voltage side) of the replacement power receiving transformer and the secondary side connection bypass cable of the mobile transformer vehicle, and separating the secondary low voltage cable of the replacement power receiving transformer; 수배전반의 차단기의 오프(OFF) 단계;An OFF step of the circuit breaker of the switchboard; 교체대상 수전변압기의 1차측 단자를 분리하고 신설 수전변압기로 교체하는 단계;Separating the primary terminal of the replacement faucet transformer and replacing it with a new faucet transformer; 신설 수전변압기의 1차측(고압)의 단자 재접속 단계;Reconnecting the terminal on the primary side (high voltage) of the new power receiving transformer; 수배전반의 차단기 온(ON) 단계;A circuit breaker (ON) step of the switchboard; 신설 수전변압기의 2차측(저압측) 저압케이블의 연결단계;Connecting the low voltage cable of the secondary side (low voltage side) of the new faucet transformer; 이동용 변압기차의 1/2차(고압/저압) 스위치 오프단계; 및,Switching off the 1/2 (high / low pressure) switch of the mobile transformer vehicle; And, 이동용 변압기차의 2차측 바이패스케이블 및 1차측 특고압 케이블의 철거단계;Dismantling the secondary bypass cable and the primary side high-voltage cable of the mobile transformer vehicle; 를 통해 고압수용가용 수전변압기기를 무정전으로 교체하는 것을 특징으로 하는 고압수용가용 수전변압기의 무정전 교체방법.An uninterruptible replacement method of a high-voltage water-soluble faucet transformer, characterized in that for replacing the high-voltage water-soluble faucet transformer device uninterrupted through.
KR1020070076291A 2007-07-30 2007-07-30 A replacing method of transformer for an electric consumption facility of high voltage without interrupting power supply KR20090012462A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160050616A (en) * 2014-10-30 2016-05-11 대우조선해양 주식회사 Transformers and Transfer Method of Offshore Structures
KR20200041535A (en) * 2018-10-12 2020-04-22 한국전력공사 Three Phases Pole Transformer for Uninterruptible Power Construction and Method Thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160050616A (en) * 2014-10-30 2016-05-11 대우조선해양 주식회사 Transformers and Transfer Method of Offshore Structures
KR20200041535A (en) * 2018-10-12 2020-04-22 한국전력공사 Three Phases Pole Transformer for Uninterruptible Power Construction and Method Thereof

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