KR102622675B1 - The ground transformer uninterruptible replacement method using the ground transformer elbow connector three phase batch separation connection apparatus and feed through - Google Patents
The ground transformer uninterruptible replacement method using the ground transformer elbow connector three phase batch separation connection apparatus and feed through Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 76
- 238000000926 separation method Methods 0.000 title claims abstract description 48
- 238000010276 construction Methods 0.000 claims description 16
- 238000011900 installation process Methods 0.000 claims description 13
- 238000005191 phase separation Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 9
- 238000004891 communication Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/004—Arrangements for interchanging inductances, transformers or coils thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
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Abstract
본 발명은 교체대상지상변압기와 교체미대상지상변압기를 3상일괄분리장치로 연결하여 교체대상지상변압기의 교체작업 동안에 교체하지 않은 지상변압기들로 하여금 수용가측에 계속해서 전기를 공급하도록 하여 무정전 지상변압기의 교체에 의해 수용가측의 전원공급단락에 의한 불편함을 해결할 수 있으며, 고압측 엘보를 쉽고 용이하게 분리함은 물론 엘보의 연결작업 역시 용이하게 이루어지도록 하며, 엘보의 분리과정을 단순화하여 지상변압기의 교체작업 시간을 크게 단축할 수 있으며, 무정전에 의해 지상변압기를 교체하는 동안 수용가측에 계속적으로 전기를 공급할 수 있어 수용가측에 정보통신기기의 사용에 대한 불편함을 해결할 수 있으며, 지상변압기의 교체작업을 위해 정전에 따른 각종 전기기기의 손상에 대한 방지는 물론, 작업자의 안전사고를 미연에 방지할 수 있는 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법이 개시된다.The present invention connects the ground transformer to be replaced and the ground transformer not to be replaced with a three-phase collective separation device, so that the ground transformers that have not been replaced continue to supply electricity to the customer during the replacement work of the ground transformer to be replaced, thereby providing uninterrupted ground. By replacing the transformer, the inconvenience caused by a power supply short-circuit on the consumer side can be resolved, and the high-voltage side elbow can be easily and easily separated, as well as the elbow connection work can be easily performed. The transformer replacement work time can be greatly shortened, and electricity can be continuously supplied to the customer while the ground transformer is replaced by uninterrupted power, thereby solving the inconvenience of the customer in using information and communication devices. An uninterruptible replacement method for a ground transformer using a 3-phase collective separation connection device and feedthrough for the elbow connection material of a ground transformer, which can prevent damage to various electrical devices due to power outages as well as prevent safety accidents for workers for replacement work. This begins.
Description
본 발명은 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법에 관한 것으로, 더욱 상세하게는 교체하는 동안 정상적으로 전기를 공급하도록 함은 물론 3상일괄분리연결장치에 의해 엘보의 분리 및 연결작업이 용이하며 교체작업이 용이하여 교체작업성을 크게 향상시킬 수 있도록 한 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법에 관한 것이다.The present invention relates to an uninterruptible replacement method for a ground transformer using a three-phase collective separation connection device and a feedthrough for the elbow connection material of a ground transformer. More specifically, it not only ensures a normal supply of electricity during replacement, but also provides a three-phase lump separation connection device. This relates to an uninterruptible replacement method for a terrestrial transformer using a 3-phase collective separation and connection device for terrestrial transformer elbow connectors and a feedthrough, which allows for easy separation and connection of elbows and easy replacement work, greatly improving replacement workability.
일반적으로 변전소로부터 수요자에게 공급되는 배전은 가공선 및 지중선의 고압배전선로를 통하여 수요자에게 공급되고 있으며, 이를 위해 22.9kV의 고압 전원을 380/220V의 저압으로 강압하는 지상변압기가 제공된다.In general, power distribution supplied to consumers from substations is supplied to consumers through high-voltage distribution lines of overhead lines and underground lines. For this purpose, a ground transformer is provided that steps down the high-voltage power of 22.9kV to a low voltage of 380/220V.
근자들어서는 도시미관을 위해 기존의 가공선 구간을 지중선 방식으로 교체하고 있으며, 이에 따라 지상변압기의 제공이 더욱 증대되고 있는 실정이다.In recent years, existing overhead line sections are being replaced with underground lines for the sake of urban aesthetics, and accordingly, the provision of ground transformers is increasing.
이러한, 지상변압기는 운용시 발생하는 고장이나 노후화 또는 고객의 부하 증가에 따른 허용전류 초과 등의 이유가 발생하면 교체될 필요가 있다.These ground transformers need to be replaced if there are reasons such as failure that occurs during operation, aging, or exceeding the allowable current due to an increase in the customer's load.
또한, 지상변압기 교체작업을 할 때 고압전류가 흐르기 때문에, 지상변압기의 엘보접속재를 분리하는 과정에서 자칫 실수할 경우 흐르는 고압전류에 의해 작업자의 생명을 앗아가는 사고가 발생되는 위험에 노출될 수 밖에 없어 지상개폐기를 차단하여 정전시킨 후 지상변압기 교체작업을 진행하고 있다.In addition, since high-voltage current flows when replacing a ground transformer, if a mistake is made in the process of separating the elbow connection material of the ground transformer, the worker is inevitably exposed to the risk of an accident that takes the life of the worker due to the flowing high-voltage current. Since there is no ground switch, we have shut down the power outage and are in the process of replacing the ground transformer.
그러나, 정전을 시킬 경우 수용가측에 정보통신기기의 사용에 커다란 지장을 초래하여 불만이 심화됨은 물론, 각종 전기기기의 손상이 발생되어 피해보상요구가 발생되고 있다.However, when a power outage occurs, it causes significant disruption to the use of information and communication devices on the part of consumers, which not only intensifies their dissatisfaction, but also causes damage to various electrical devices, resulting in claims for compensation for damages.
또한, 수용가 특성 다양화와 첨단 IT기기 보급에 의해 일정시간의 정전은 현실적으로 매우 어려운 상황이며, 이에 따라 작업시간 지연 등으로 인한 민원 및 피해보상 요구가 증대되고 있는 실정이다.In addition, due to the diversification of customer characteristics and the spread of cutting-edge IT devices, power outages for a certain period of time are realistically difficult, and as a result, civil complaints and demands for damage compensation due to delays in work time are increasing.
이에 따라, 최근에는 대부분 고객과 어려운 정전협의를 통해서 심야에 지상변압기를 교체하고 있으나, 심야에 지상변압기를 교체작업함에 따라 지상변압기를 교체하는 작업자는 물론 및 업체직원의 업무가 가중되는 또 다른 문제점이 야기되고 있다.Accordingly, in recent years, most ground transformers are being replaced late at night through difficult power outage negotiations with customers. However, as ground transformers are replaced late at night, another problem is that the work of not only the workers replacing the ground transformers but also the company employees is increased. This is happening.
한편, 지상변압기의 교체작업시 정전에 의한 문제점을 해결하기 위해 다양한 기술들이 안출되고 있다.Meanwhile, various technologies are being developed to solve problems caused by power outages when replacing ground transformers.
일예로, 등록특허 10-2221175호인 무정전 지상 변압기 교체공법이 안출된 바 있으며, 이는 무정전 방식으로 지상변압기를 교체하는 과정에서 지상변압기와 연결되는 수용가로 전기를 공급할 수 있는 지상변압기로 주변에 존재하는 인근 지상변압기를 선택 사용하여, 지상변압기 교체에 소요되는 장비, 시간, 비용을 대폭 절감할 수 있어 편리하고 경제적인 변압기 교체를 유도할 수 있을 뿐만 아니라, 터미널 탈거장치를 통한 저압케이블을 탈거하는 방식으로 인해 교체 변압기와 인근 변압기를 전기적으로 연결하는 연결 케이블을 저압케이블이 결속된 터미널에 부착 연결하는 간편한 방식으로 수행할 수 있어 저압케이블 피복을 박피하여 연결하는 방식에 대비하여 작업자의 안전이 확보되도록 하고 있다.For example, the uninterruptible ground transformer replacement method, registered patent number 10-2221175, has been developed, which is a ground transformer that can supply electricity to customers connected to the ground transformer in the process of replacing the ground transformer in an uninterruptible manner. By selecting and using a nearby ground transformer, the equipment, time, and cost required for replacing the ground transformer can be significantly reduced, leading to convenient and economical transformer replacement, as well as a method of removing low-voltage cables through a terminal removal device. As a result, the connection cable that electrically connects the replacement transformer and the nearby transformer can be easily connected by attaching it to the terminal where the low-voltage cable is connected, ensuring worker safety compared to the method of connecting by peeling the low-voltage cable sheath. I'm doing it.
본 발명은 본 출원인에 의해 안출된 특허등록 10-2014049호인 지상변압기용 엘보접속재 분리 및 연결장치(3상일괄분리연결장치)를 이용하여 고압측 엘보를 쉽고 용이하게 분리함은 물론 엘보의 연결작업 역시 용이하게 이루어지도록 하고 엘보의 분리과정을 단순화하여 지상변압기의 교체작업 시간을 크게 단축할 수 있으며, 무정전에 의해 지상변압기를 교체하는 동안 수용가측에 계속적으로 전기를 공급할 수 있도록 한 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법을 제공함에 그 목적이 있다.The present invention uses the elbow connection material separation and connection device for terrestrial transformers (3-phase collective separation and connection device), which is patent registration number 10-2014049 invented by the present applicant, to easily and easily separate the high-voltage side elbow as well as the connection work of the elbow. It is also an above-ground transformer elbow connection material that makes it easy and simplifies the process of separating the elbow, greatly shortening the replacement work time for the above-ground transformer, and enabling continuous supply of electricity to the consumer while replacing the above-ground transformer through uninterrupted power outage. The purpose is to provide an uninterruptible replacement method for ground transformers using a three-phase bulk separation connection device and feedthrough.
상기 목적을 달성하기 위한 수단으로 본 발명인 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법은, 엘보접속재와 복수개 고압출력측엘보접속재 및 복수개 저압터미널단자가 각각 구비된 복수개 지상변압기 중 어느 하나의 지상변압기를 교체하는 지상변압기 무정전교체방법에 있어서, 3상일괄분리장치를 교체하고자 하는 교체대상지상변압기와 상기 교체대상지상변압기의 일측에 위치된 제1교체미대상지상변압기 및 교체대상지상변압기의 타측에 위치된 제2교체미대상지상변압기에 각각 설치하고, 공사용개폐기와 변압기 및 저압차단기를 갖는 이동용변압기차량와 피드쓰루를 이용하여 지상변압기를 교체하는 교체대상지상변압기 교체공정 및 새것의 교체대상지상변압기 설치공정으로 구비되고, 상기 교체대상지상변압기 교체공정은, 공사용개폐기와 변압기 및 저압차단기를 갖는 이동용변압기차량을 설치하고, 교체하고자 하는 교체대상지상변압기의 고압출력측엘보접속재(HB)에 3상일괄분리제1연결장치를 설치하고 교체대상지상변압기의 일측에 위치하는 제1교체미대상지상변압기의 고압입력측엘보접속재(HA)에 3상일괄분리제2연결장치를 설치하는 제1공정; 상기 교체대상지상변압기와 전기적으로 연결된 지상개폐기의 단자를 ON시킨 후, 상기 3상일괄분리제1연결장치를 이용하여 교체대상지상변압기의 고압출력측엘보접속단자로부터 고압출력측엘보접속재(HB)를 분리하고, 상기 3상일괄분리제2연결장치를 이용하여 제1교체미대상지상변압기의 고압입력측엘보접속단자로부터 고압입력측엘보접속재(HA)를 3상일괄분리 한 다음, 상기 교체대상지상변압기의 고압입력축엘보접속재(HA)에 설치된 3상일괄분리제1연결장치를 교체대상지상변압기로부터 분리하는 제2공정; 상기 제2공정의 3상일괄분리제2연결장치에 의해 고압입력측엘보접속재(HB)가 분리된 제1교체미대상지상변압기의 고압입력측엘보접속단자를 피드쓰루에 전기적으로 연결하고 고압교체대상지상변압기케이블로 상기 이동용변압기차량의 공사용개폐기와 상기 피드쓰루를 전기적으로 연결한 후, 저압교체대상지상변압기케이블을 교체대상지상변압기의 저압터미널단자에 전기적으로 연결하는 제3공정; 상기 제2공정에 의해 분리된 제1교체미대상변압기의 고압입력측엘보접속재(HA)를 3상일괄분리제2연결장치를 이용하여 제1교체미대상변압기의 고압입력측엘보접속단자에 연결하고 상기 이동용변압기차량의 공사용개폐기를 ON시킨 후 이동용변압기차량의 저압측 전압을 측정한 다음, 상기 이동용변압기차량의 저압차단기를 ON시키는 제4공정; 상기 교체대상지상변압기의 타측에 위치된 제2교체미대상변압기에 3상일괄분리제3연결장치를 설치한 후, 제2교체미대상변압기의 고압입력측엘보접속단자로부터 고압입력측엘보접속재(HA)를 분리하고 교체대상지상변압기의 고압입력측엘보접속재(HA) 및 저압단자를 분리한 다음, 교체대상지상변압기를 새것의 교체지상변압기로 교체하는 제5공정으로 이루어진다.As a means to achieve the above object, the present invention's ground transformer uninterruptible replacement method using a three-phase collective separation connection device and feed through for the ground transformer elbow connection material includes a plurality of elbow connection materials, a plurality of high-pressure output side elbow connection materials, and a plurality of low-voltage terminal terminals, respectively. In the uninterruptible replacement method of a ground transformer for replacing one of the ground transformers, a ground transformer to be replaced for which a three-phase batch separator is to be replaced and a first ground transformer not to be replaced located on one side of the ground transformer to be replaced. and a replacement ground transformer replacement process in which the ground transformer is installed on the second ground transformer not subject to replacement located on the other side of the ground transformer to be replaced, and the ground transformer is replaced using a mobile transformer vehicle having a construction switch, a transformer, and a low-voltage circuit breaker, and a feedthrough. and a process of installing a new ground transformer to be replaced, wherein the process of replacing the ground transformer to be replaced includes installing a mobile transformer vehicle having a construction switch, a transformer, and a low-voltage circuit breaker, and a high-voltage output side elbow connection material of the ground transformer to be replaced. Install the 3-phase collective separation first connection device at (HB) and install the 3-phase collective separation second connection device on the high-voltage input side elbow connector (HA) of the first non-replacement ground transformer located on one side of the replacement target ground transformer. The first process of doing; After turning on the terminal of the ground switch electrically connected to the ground transformer to be replaced, separate the high-pressure output side elbow connection material (HB) from the high-voltage output side elbow connection terminal of the ground transformer to be replaced using the three-phase collective separation first connection device. Then, separate the high-voltage input side elbow connection material (HA) in three phases from the high-voltage input side elbow connection terminal of the first ground transformer not subject to replacement using the second three-phase separate connection device, and then A second process of separating the first three-phase separation connection device installed on the input shaft elbow connection material (HA) from the ground transformer to be replaced; Electrically connect the high-voltage input side elbow connection terminal of the first non-replacement ground transformer, from which the high-voltage input side elbow connection material (HB) is separated by the 3-phase batch separation second connection device of the second process, to the feed through, and connect it to the high-voltage replacement target ground. A third process of electrically connecting the construction switch of the mobile transformer vehicle and the feed through with a transformer cable, and then electrically connecting the low-voltage ground transformer cable to the low-voltage terminal terminal of the ground transformer to be replaced; The high-voltage input side elbow connection material (HA) of the first non-replaceable transformer separated by the second process is connected to the high-voltage input side elbow connection terminal of the first non-replaceable transformer using the three-phase collective separation second connection device, and A fourth process of turning on the construction switch of the mobile transformer vehicle, measuring the low-voltage side voltage of the mobile transformer vehicle, and then turning on the low-voltage circuit breaker of the mobile transformer vehicle; After installing the 3-phase collective separation third connection device on the second non-replaceable transformer located on the other side of the ground transformer subject to replacement, the high-voltage input side elbow connecting material (HA) is connected from the high-voltage input side elbow connection terminal of the second non-replaceable transformer. The fifth process consists of separating the high-voltage input side elbow connector (HA) and low-voltage terminal of the ground transformer to be replaced, and then replacing the ground transformer to be replaced with a new replacement ground transformer.
나아가 상기 새것의 교체대상지상변압기 설치공정은, 교체된 새것의 교체지상변압기의 고압 및 저압선로를 각각 전기적으로 연결하고 상기 제2교체미대상변압기의 분리된 고압출력측엘보접속재(HB)를 고압출력측엘보접속단자에 연결하고 이동용변압기차량의 저압차단기를 OFF 시키는 제6공정; 교체된 새것의 교체지상변압기에 연결된 저압교체대상지상변압기케이블을 분리한 후 이동용변압기차량의 공사용개폐기를 OFF하고 제1교체미대상지상변압기의 고압입력측엘보접속재(HB)를 고압입력측엘보접속단자에 연결한 다음, 교체된 새것의 교체지상변압기의 고압출력측엘보접속단자에 고압출력측엘보접속재(HA)를 연결하고 상기 제2공정에 의해 ON 시킨 지상개폐기의 단자를 OFF시키는 제7공정으로 구비된다.Furthermore, the installation process of the new replacement ground transformer electrically connects the high-voltage and low-voltage lines of the new replacement ground transformer and connects the separated high-pressure output side elbow connector (HB) of the second non-replacement transformer to the high-pressure output side. The sixth process of connecting to the elbow connection terminal and turning off the low-voltage circuit breaker of the mobile transformer vehicle; After disconnecting the cable of the low-voltage ground transformer subject to replacement connected to the new ground transformer, turn off the construction switch of the mobile transformer vehicle and attach the high-voltage input side elbow connection material (HB) of the first non-replacement ground transformer to the high-voltage input side elbow connection terminal. After connection, the high-voltage output side elbow connecting material (HA) is connected to the high-voltage output side elbow connection terminal of the new replacement ground transformer, and the seventh process is performed to turn off the terminal of the ground switch that was turned ON in the second process.
본 발명은 교체대상지상변압기와 교체미대상지상변압기를 3상일괄분리장치로 연결하여 교체대상지상변압기의 교체작업 동안에 교체하지 않은 지상변압기들로 하여금 수용가측에 계속해서 전기를 공급하도록 하여 무정전 지상변압기의 교체에 의해 수용가측의 전원공급단락에 의한 불편함을 해결할 수 있으며, 고압측 엘보를 쉽고 용이하게 분리함은 물론 엘보의 연결작업 역시 용이하게 이루어지도록 하며, 엘보의 분리과정을 단순화하여 지상변압기의 교체작업 시간을 크게 단축할 수 있으며, 무정전에 의해 지상변압기를 교체하는 동안 수용가측에 계속적으로 전기를 공급할 수 있어 수용가측에 정보통신기기의 사용에 대한 불편함을 해결할 수 있으며, 지상변압기의 교체작업을 위해 정전에 따른 각종 전기기기의 손상에 대한 방지는 물론, 작업자의 안전사고를 미연에 방지할 수 있다.The present invention connects the ground transformer to be replaced and the ground transformer not to be replaced with a three-phase collective separation device, so that the ground transformers that have not been replaced continue to supply electricity to the customer during the replacement work of the ground transformer to be replaced, thereby providing uninterrupted ground. By replacing the transformer, the inconvenience caused by the power supply short circuit on the consumer side can be resolved. The high-voltage side elbow can be easily and easily separated, as well as the elbow connection work can be easily performed, and the elbow separation process can be simplified to ensure that the elbow can be easily separated from the ground. The transformer replacement work time can be greatly shortened, and electricity can be continuously supplied to the customer while the ground transformer is replaced due to uninterrupted power, thereby solving the inconvenience of the customer in using information and communication devices. For replacement work, it is possible to prevent damage to various electrical devices due to power outages, as well as prevent safety accidents for workers.
도 1은 본 발명인 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법의 전체 공정을 나타낸 공정도이다.
도 2는 본 발명인 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법에 의해 지상변압기가 교체되기 전 지상변압기들의 연결상태를 나타낸 개념도이다.
도 3 내지 도 6은 본 발명인 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법의 공정을 각각 나타낸 공정개념도이다.
도 7은 본 발명인 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법에 사용되는 3상일괄분리장치를 나타낸 사시도이다.
도 8은 본 발명인 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법에 사용되는 3상일괄분리장치로 엘보를 교체하는 상태를 개략적으로 나타낸 개념도이다.Figure 1 is a process diagram showing the entire process of the ground transformer uninterruptible replacement method using the three-phase collective separation connection device and feedthrough for the ground transformer elbow connection material of the present invention.
Figure 2 is a conceptual diagram showing the connection state of the ground transformers before the ground transformer is replaced by the ground transformer uninterruptible replacement method using the ground transformer elbow connection material 3-phase collective separation connection device and feedthrough of the present invention.
Figures 3 to 6 are process conceptual diagrams showing the process of the ground transformer elbow connection material three-phase batch separation connection device of the present invention and the ground transformer uninterruptible replacement method using the feedthrough, respectively.
Figure 7 is a perspective view showing the three-phase collective separation device used in the ground transformer elbow connection material three-phase collective separation connection device of the present invention and the uninterruptible replacement method of the ground transformer using a feedthrough.
Figure 8 is a conceptual diagram schematically showing the state of replacing the elbow with the three-phase collective separation device used in the ground transformer elbow connection material three-phase collective separation connection device of the present invention and the uninterruptible replacement method of the ground transformer using the feedthrough.
이하, 상기 목적외에 본 발명의 다른 목적 및 특징들은 첨부 도면을 참조한 실시예에 대한 설명을 통하여 명백히 드러나게 될 것이다.Hereinafter, other purposes and features of the present invention in addition to the above purposes will be clearly revealed through the description of the embodiments with reference to the accompanying drawings.
다르게 정의되지 않는 한, 기술적이거나 과학적인 용어를 포함해서 여기서 사용되는 모든 용어들은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미를 가지고 있다. 일반적으로 사용되는 사전에 정의되어 있는 것과 같은 용어들은 관련 기술의 문맥상 가지는 의미와 일치하는 의미를 가진 것으로 해석되어야 하며, 본 출원에서 명백하게 정의하지 않는 한, 이상적이거나 과도하게 형식적인 의미로 해석되지 않는다.Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present application. No.
이하에서는, 본 발명의 실시예에 따른 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법 첨부된 도면을 참고하여 좀 더 구체적으로 설명한다.Hereinafter, a method for uninterruptible replacement of a ground transformer using a three-phase collective separation and connection device for a ground transformer elbow connection material and a feedthrough according to an embodiment of the present invention will be described in more detail with reference to the attached drawings.
도시된 바와 같이 본 발명은, 엘보접속재와 복수개 고압출력측엘보접속재 및 복수개 저압터미널단자가 각각 구비된 복수개 지상변압기 중 어느 하나의 지상변압기를 교체하는 지상변압기 무정전교체방법에 관한 것으로, 3상일괄분리장치(110)(120)(130)를 교체하고자 하는 교체대상지상변압기(210)와 상기 교체대상지상변압기(210)의 일측에 위치된 제1교체미대상지상변압기(220) 및 교체대상지상변압기(210)의 타측에 위치된 제2교체미대상지상변압기(230)에 각각 설치하고, 공사용개폐기(310)와 변압기(320) 및 저압차단기(330)를 갖는 이동용변압기차량(300)과 피드쓰루(400)를 이용하여 지상변압기를 교체하는 교체대상지상변압기 교체공정(S1) 및 새것의 교체대상지상변압기 설치공정(S2)으로 이루어진다.As shown, the present invention relates to an uninterruptible replacement method for a ground transformer, which replaces one ground transformer among a plurality of ground transformers each equipped with an elbow connection material, a plurality of high-voltage output side elbow connection members, and a plurality of low-voltage terminal terminals, and involves three-phase batch separation. A ground transformer to be replaced (210) for which the device (110), (120) (130) is to be replaced, a first ground transformer not to be replaced (220) located on one side of the ground transformer to be replaced (210), and a ground transformer to be replaced. A mobile transformer vehicle (300) and a feedthrough are installed on the second non-replaceable ground transformer (230) located on the other side of (210), and have a construction switch (310), a transformer (320), and a low-voltage circuit breaker (330). It consists of a replacement ground transformer replacement process (S1) in which the ground transformer is replaced using (400) and a new replacement ground transformer installation process (S2).
상기 3상일괄분리장치(110)(120)(130)은, 도 7에 도시된 바와 같이 지지프레임체(101)와 좌우이동체(102)와, 상하이동프레임체(103) 및 접속재파지체(104)로 구비되는 것으로, 상기 좌우이동체(102)에 의해 상하이동프레임체(103)와 접속재파지체(104)가 지지프레임체(101)의 양측 즉, 좌측 및 우측방향으로 이동되어 상기 접속재파지체(104)가 전후진실린더(105)의 동작에 의해 상기 고압입력측엘보접속재(HA211, HA221, HA231)와 고압출력측엘보접속재(HB211, HB221, HB231, HA611)를 각각 고압출력측엘보접속단자(212, 232, 611)와 고압입력측엘보접속단자(213, 223, 233)에 끼워 연결하거나 고압입력측엘보접속재(HA211, HA221, HA231)와 고압출력측엘보접속재(HB211, HB221, HB231, HA611)에 각각 끼움 연결된 고압출력측엘보접속단자(212, 232, 611)와 고압입력측엘보접속단자(213, 223, 233)로부터 분리한다.As shown in FIG. 7, the three-phase collective separation device 110, 120, and 130 includes a support frame 101, a left and right moving body 102, a vertical moving frame 103, and a connecting material holding body ( 104), the vertical movement frame 103 and the connection re-holding member 104 are moved to both sides of the support frame 101, that is, in the left and right directions, by the left and right moving members 102, thereby causing the connection re-break. The body 104 is connected to the high pressure input side elbow connection material (HA211, HA221, HA231) and the high pressure output side elbow connection material (HB211, HB221, HB231, HA611) by the operation of the forward and backward cylinder 105, respectively, at the high pressure output side elbow connection terminal (212). , 232, 611) and the high-pressure input side elbow connection terminals (213, 223, 233), or insert them into the high-pressure input side elbow connection material (HA211, HA221, HA231) and the high-pressure output side elbow connection material (HB211, HB221, HB231, HA611), respectively. Separate from the connected high pressure output side elbow connection terminals (212, 232, 611) and high pressure input side elbow connection terminals (213, 223, 233).
즉, 본 발명에서의 고압입력측엘보접속재(HA211, HA221, HA231)와 고압출력측엘보접속재(HB211, HB221, HB231, HA611)를 각각 고압출력측엘보접속단자(212, 232, 611)와 고압입력측엘보접속단자(213, 223, 233)에 끼우거나 분리하는 작업은, 3상일괄분리장치(110)(120)(130)의 전후진실린더(105)에 의해 접속재파지체(104)가 고압입력측엘보접속재(HA211, HA221, HA231)와 고압출력측엘보접속재(HB211, HB221, HB231, HA611)를 각각 고압출력측엘보접속단자(212, 232, 611)와 고압입력측엘보접속단자(213, 223, 233)에 밀어주거나 당겨 분리하는 것에 의해 이루어진다.That is, in the present invention, the high pressure input side elbow connection materials (HA211, HA221, HA231) and the high pressure output side elbow connection materials (HB211, HB221, HB231, HA611) are connected to the high pressure output side elbow connection terminals (212, 232, 611) and the high pressure input side elbow, respectively. The work of inserting or separating the terminals 213, 223, and 233 involves the connection material holding member 104 being connected to the high pressure input side elbow connection material by the forward and backward cylinder 105 of the three-phase batch separation device 110, 120, and 130. (HA211, HA221, HA231) and high-pressure output side elbow connection material (HB211, HB221, HB231, HA611) into the high-pressure output side elbow connection terminal (212, 232, 611) and high-pressure input side elbow connection terminal (213, 223, 233), respectively. This is done by giving or pulling apart.
상기 교체대상지상변압기 교체공정(S1)은, 제1공정(S11) 내지 제5공정(S15)으로 이루어진다.The replacement process (S1) for the ground transformer to be replaced consists of the first process (S11) to the fifth process (S15).
본 발명의 제1공정(S11)은, 공사용개폐기(310)와 변압기(320) 및 저압차단기(330)를 갖는 이동용변압기차량(300)을 설치하고, 교체하고자 하는 교체대상지상변압기(210)의 고압출력측엘보접속재(HB211)에 3상일괄분리제1연결장치(110)를 설치하고 교체대상지상변압기(210)의 일측에 위치하는 제1교체미대상지상변압기(220)의 고압입력측엘보접속재(HA221))에 3상일괄분리제2연결장치(120)를 설치하는 공정이다.The first process (S11) of the present invention is to install a mobile transformer vehicle 300 having a construction switch 310, a transformer 320, and a low-voltage breaker 330, and to replace the ground transformer 210 to be replaced. The three-phase collective separation first connection device 110 is installed on the high-pressure output side elbow connection material (HB211), and the high-voltage input side elbow connection material ( This is a process of installing the three-phase batch separation second connection device (120) in HA221)).
즉, 교체하고자 하는 지상변압기인 교체대상지상변압기(210)의 고압출력측엘보접속재(HB211)에 3상일괄분리제1연결장체(110)를 연결 설치하고, 상기 교체대상지상변압기(210)의 일측에 위치하고 교체하지 않는 제1교체미대상지상변압기(220)의 고압입력측엘보접속재(HA221))에 3상일괄분리제2연결장치(120)를 연결 설치한다.That is, the first three-phase separation connector 110 is connected and installed to the high-voltage output side elbow connection material (HB211) of the ground transformer to be replaced (210), which is the ground transformer to be replaced, and connected to one side of the ground transformer to be replaced (210). Connect and install the second three-phase separation connection device (120) to the high-voltage input side elbow connection material (HA221) of the first non-replaceable ground transformer (220) located in and not being replaced.
본 발명의 제2공정(S12)은, 상기 교체대상지상변압기(210)와 전기적으로 연결된 지상개폐기(500)의 단자(510)를 ON시킨 후, 상기 3상일괄분리제1연결장치(110)를 이용하여 교체대상지상변압기(210)의 고압출력측엘보접속단자(212)로부터 고압출력측엘보접속재(HA211)를 분리한다.In the second process (S12) of the present invention, after turning on the terminal 510 of the ground switch 500 electrically connected to the ground transformer 210 to be replaced, the three-phase batch separation first connection device 110 Separate the high-pressure output side elbow connection material (HA211) from the high-pressure output side elbow connection terminal 212 of the ground transformer 210 to be replaced using .
또한, 상기 3상일괄분리제2연결장치(120)를 이용하여 제1교체미대상지상변압기(220)의 고압입력측엘보접속단자(223)로부터 고압입력측엘보접속재(HB221)를 3상일괄분리 한 다음, 상기 교체대상지상변압기(210)의 고압입력축엘보접속재(HA211)에 설치된 3상일괄분리제1연결장치(110)를 교체대상지상변압기(210)로부터 분리한다.In addition, the high-voltage input side elbow connection material (HB221) is separated in three phases from the high-voltage input side elbow connection terminal 223 of the first non-replaceable ground transformer 220 using the three-phase second collective separation connection device 120. Next, the three-phase collective separation first connection device 110 installed on the high-voltage input shaft elbow connection material (HA211) of the ground transformer to be replaced (210) is separated from the ground transformer to be replaced (210).
본 발명의 제3공정(S13)은, 상기 제2공정(S12)의 3상일괄분리제2연결장치(120)에 의해 고압입력측엘보접속재(HB221)가 분리된 제1교체미대상지상변압기(220)의 고압입력측엘보접속단자(223)를 피드쓰루(400)에 전기적으로 연결하고 고압바이패스케이블로 상기 이동용변압기차량(300)의 공사용개폐기(310)와 상기 피드쓰루(400)를 전기적으로 연결한 후, 저압바이패스케이블을 교체대상지상변압기(210)의 저압터미널단자(214)에 전기적으로 연결하는 공정이다.The third process (S13) of the present invention is a first non-replaceable ground transformer ( 220), electrically connect the high-voltage input side elbow connection terminal 223 to the feed through 400, and electrically connect the construction switch 310 of the mobile transformer vehicle 300 and the feed through 400 with a high-voltage bypass cable. After connection, this is a process of electrically connecting the low-voltage bypass cable to the low-voltage terminal terminal 214 of the ground transformer 210 to be replaced.
또한 본 발명의 제4공정(S14)은, 상기 제2공정(S12)에 의해 분리된 제1교체미대상변압기(220)의 고압입력측엘보접속재(HB221)를 3상일괄분리제2연결장치(120)를 이용하여 제1교체미대상변압기(220)의 고압입력측엘보접속단자(213)에 연결하고 상기 이동용변압기차량(300)의 공사용개폐기(310)를 ON시킨 후 이동용변압기차량(300)의 저압측 전압을 측정한 다음, 상기 이동용변압기차량(300)의 저압차단기(330)를 ON시키는 공정이다.Additionally, in the fourth process (S14) of the present invention, the high-voltage input side elbow connection material (HB221) of the first non-replaceable transformer 220 separated by the second process (S12) is separated into a three-phase second connection device ( 120), connect it to the high-voltage input side elbow connection terminal 213 of the first non-replaceable transformer 220, turn on the construction switch 310 of the mobile transformer vehicle 300, and then turn on the mobile transformer vehicle 300. This is a process of measuring the low-voltage side voltage and then turning on the low-voltage circuit breaker 330 of the mobile transformer vehicle 300.
또한 본 발명의 제5공정(S15)은, 상기 교체대상지상변압기(210)의 타측에 위치된 제2교체미대상변압기(230)에 3상일괄분리제3연결장치(130)를 설치한 후, 제2교체미대상변압기(230)의 고압출력측엘보접속단자(233)로부터 고압출력측엘보접속재(HA231)를 분리하고 교체대상지상변압기(210)의 고압출력측엘보접속재(HB211) 및 저압단자(213)를 분리한 다음, 교체대상지상변압기(210)를 새것의 교체지상변압기(600)로 교체하는 공정이다.In addition, the fifth process (S15) of the present invention is performed after installing the three-phase collective separation third connection device 130 on the second non-replaceable transformer 230 located on the other side of the replacement ground transformer 210. , separate the high pressure output side elbow connection material (HA231) from the high pressure output side elbow connection terminal 233 of the second non-replacement transformer 230, and connect the high pressure output side elbow connection material (HB211) and the low pressure terminal 213 of the replacement target ground transformer 210. ) is a process of separating the ground transformer to be replaced (210) with a new replacement ground transformer (600).
이와 같이 교체대상지상변압기(210)를 교체한 후, 본 발명의 새것의 교체대상지상변압기 설치공정(S2)에 의해 교체지상변압기(600)로 교체하여 설치하면 된다.After replacing the ground transformer to be replaced (210) in this way, it can be installed by replacing it with the ground transformer to be replaced (600) by the new ground transformer to be replaced installation process (S2) of the present invention.
본 발명의 새것의 교체대상지상변압기 설치공정(S2)은, 설치제1공정(S21)과 설치제2공정(S22)으로 이루어진다.The installation process (S2) of the new replacement ground transformer of the present invention consists of the first installation process (S21) and the second installation process (S22).
본 발명의 설치제1공정(S21)은, 교체된 새것의 교체지상변압기(600)의 고압바이패스케이블 및 저압바이패스케이블을 각각 전기적으로 연결하고 상기 제2교체미대상지상변압기(230)의 분리된 고압출력측엘보접속재(HB231)를 고압출력측엘보접속단자(232)에 연결하고 이동용변압기차량(300)의 저압차단기(330)를 OFF 시키는 공정이다.The first installation process (S21) of the present invention electrically connects the high-voltage bypass cable and the low-voltage bypass cable of the new replaced ground transformer 600, respectively, and connects the second ground transformer not subject to replacement 230. This is a process of connecting the separated high-pressure output side elbow connection material (HB231) to the high-pressure output side elbow connection terminal 232 and turning off the low-voltage circuit breaker 330 of the mobile transformer vehicle 300.
또한, 본 발명의 설치제2공정(S22)은, 교체된 새것의 교체지상변압기(600)에 연결된 저압바이패스케이블을 분리한 후 이동용변압기차량(300)의 공사용개폐기(310)를 OFF하고 제1교체미대상지상변압기(220)의 고압입력측엘보접속재(HB221)를 고압입력측엘보접속단자(223)에 연결한 다음, 교체된 새것의 교체지상변압기(600)의 고압출력측엘보접속단자(611)에 고압출력측엘보접속재(HA611)를 연결하고 상기 제2공정(S12)에 의해 ON 시킨 지상개폐기(500)의 단자(510)를 OFF시키는 공정이다.In addition, in the second installation process (S22) of the present invention, after disconnecting the low-voltage bypass cable connected to the new replacement ground transformer 600, the construction switch 310 of the mobile transformer vehicle 300 is turned off. 1 Connect the high-voltage input side elbow connection material (HB221) of the ground transformer not subject to replacement (220) to the high-pressure input side elbow connection terminal 223, and then connect the high-pressure output side elbow connection terminal 611 of the new replacement ground transformer 600. This is a process of connecting the high-pressure output side elbow connector (HA611) and turning off the terminal 510 of the ground switch 500, which was turned ON in the second process (S12).
이와 같이 이루어진 본 발명은, 교체대상지상변압기(210)를 교체할 때, 고압출력측엘보접속단자(212)(232)(611)과 고압입력측엘보접속단자(213)(223)(233)에 고압입력측엘보접속재(HA211)(HA221)(HA231)과 고압입력측엘보접속재(HB211)(HB221)(HB231)(HA611)을 끼워 연결하고 분리하는 작업이 수작업이 아닌 3상일괄분리제1연결장치(110)와 3상일괄분리제2연결장치(120) 및 3상일괄분리제3연결장치(130)에 의해 이루어지기 때문에, 작업자의 안전사고를 방지할 수 있으며, 무정전에 의해 지상변압기를 교체할 수 있다.The present invention made in this way, when replacing the ground transformer 210 to be replaced, the high pressure output side elbow connection terminals 212, 232, 611 and the high pressure input side elbow connection terminals 213, 223, 233 are connected. The three-phase batch separation first connection device (110) does not require manual work to connect and separate the input side elbow connector (HA211) (HA221) (HA231) and the high pressure input side elbow connector (HB211) (HB221) (HB231) (HA611). ) and the three-phase collective separation second connection device 120 and the three-phase collective separation third connection device 130, it is possible to prevent safety accidents for workers, and the ground transformer can be replaced by uninterrupted power. there is.
또한, 교체대상지상변압기(21)의 교체작업 동안 교체하지 않은 지상변압기들에 의해 계속해서 수용가측에 전기를 공급할 수 있음에 따라 무정전 지상변압기의 교체에 의해 수용가측의 전원공급단락에 의한 불편함을 해결할 수 있으며, 지상변압기의 교체작업 시간을 크게 단축할 수 있을 뿐만 아니라, 무정전에 의해 지상변압기를 교체하는 동안 수용가측에 계속적으로 전기를 공급할 수 있기 때문에 수용가측에 정보통신기기의 사용에 대한 불편함을 해결하고 지상변압기의 교체작업을 위해 정전에 따른 각종 전기기기의 손상에 대한 미연에 방지할 수 있다.In addition, since electricity can continue to be supplied to the customer by the ground transformers that are not replaced during the replacement work of the ground transformer to be replaced (21), there is inconvenience caused by a short circuit in the power supply to the customer due to the replacement of the uninterruptible ground transformer. This can be solved and the replacement work time for the ground transformer can be greatly shortened. In addition, electricity can be continuously supplied to the customer while the ground transformer is replaced due to uninterrupted power outage, thereby increasing the user's awareness of the use of information and communication devices. In order to resolve inconveniences and replace ground transformers, damage to various electrical devices due to power outages can be prevented in advance.
이상과 같이 본 발명에서는 구체적인 구성 요소 등과 같은 특정 사항들과 한정된 실시예 및 도면에 의해 설명되었으나 이는 본 발명의 보다 전반적인 이해를 돕기 위해서 제공된 것일 뿐, 본 발명은 상기의 실시예에 한정되는 것은 아니며 본 발명이 속하는 기술분야에서 통상적인 지식을 가진 자라면 이러한 기재로부터 다양한 수정 및 변형이 가능하다.As described above, the present invention has been described with specific details such as specific components and limited embodiments and drawings, but this is only provided to facilitate a more general understanding of the present invention, and the present invention is not limited to the above embodiments. Various modifications and variations can be made from this description by those skilled in the art to which the present invention pertains.
따라서, 본 발명의 사상은 설명된 실시예에 국한되어 정해져서는 아니 되며, 후술하는 청구범위뿐 아니라 이 청구범위와 균등하거나 등가적 변형이 있는 모든 것들은 본 발명 사상의 범주에 속한다고 할 것이다.Accordingly, the spirit of the present invention should not be limited to the described embodiments, and all claims that are equivalent or equivalent to the claims as well as the following claims fall within the scope of the present invention.
S1 : 교체대상지상변압기 교체공정
S2 : 교체대상지상변압기 설치공정
S11 : 제1공정 S12 : 제2공정
S13 : 제3공정 S14 : 제4공정
S15 : 제5공정 S21 : 설치제1공정
S22 : 설치제2공정
110 : 3상일괄분리제1연결장치 120 : 3상일괄분리제2연결장치
130 : 3상일괄분리제3연결장치 210 : 교체대상지상변압기
220 : 제1교체미대상지상변압기 230 : 제2교체미대상지상변압기
310 : 공사용개폐기 320 : 변압기
330 : 저압차단기 300 : 이동용변압기차량
400 : 피드쓰루 500 : 지상개폐기
510 : 지상개폐기 단자 600 : 교체지상변압기
212, 232, 611 : 고압출력측엘보접속단자
213, 223, 233 : 고압입력측엘보접속단자
500 : 지상개폐기 510 : 지상개폐기 단자
600 : 교체지상변압기
HA211, HA221, HA231 : 고압입력측엘보접속재
HB211, HB221, HB231, HA611 : 고압출력측엘보접속재S1: Ground transformer replacement process
S2: Installation process for ground transformer to be replaced
S11: 1st process S12: 2nd process
S13: Third process S14: Fourth process
S15: 5th process S21: Installation 1st process
S22: Installation 2nd process
110: 3-phase batch separation first connection device 120: 3-phase batch separation second connection device
130: 3-phase collective separation third connection device 210: Ground transformer to be replaced
220: 1st ground transformer not subject to replacement 230: 2nd ground transformer not subject to replacement
310: construction switch 320: transformer
330: Low voltage circuit breaker 300: Mobile transformer vehicle
400: Feedthrough 500: Ground switch
510: Ground switch terminal 600: Replacement ground transformer
212, 232, 611: High pressure output side elbow connection terminal
213, 223, 233: High pressure input side elbow connection terminal
500: ground switch 510: ground switch terminal
600: Replacement ground transformer
HA211, HA221, HA231: High pressure input side elbow connection material
HB211, HB221, HB231, HA611: High pressure output side elbow connection material
Claims (2)
3상일괄분리장치를 교체하고자 하는 교체대상지상변압기(210)와 상기 교체대상지상변압기(210)의 일측에 위치된 제1교체미대상지상변압기(220) 및 교체대상지상변압기(210)의 타측에 위치된 제2교체미대상지상변압기(230)에 각각 설치하고, 공사용개폐기(310)와 변압기(320) 및 저압차단기(330)를 갖는 이동용변압기차량(300)과 피드쓰루(400)를 이용하여 지상변압기를 교체하는 교체대상지상변압기 교체공정(S1) 및 새것의 교체대상지상변압기 설치공정(S2)으로 구비되고,
상기 교체대상지상변압기 교체공정(S1)은,
공사용개폐기(310)와 변압기(320) 및 저압차단기(330)를 갖는 이동용변압기차량(300)을 설치하고, 교체하고자 하는 교체대상지상변압기(210)의 고압출력측엘보접속재(HB211)에 3상일괄분리제1연결장치(110)를 설치하고 교체대상지상변압기(210)의 일측에 위치하는 제1교체미대상지상변압기(220)의 고압입력측엘보접속재(HA221))에 3상일괄분리제2연결장치(120)를 설치하는 제1공정(S11);
상기 교체대상지상변압기(210)와 전기적으로 연결된 지상개폐기(500)의 단자(510)를 ON시킨 후, 상기 3상일괄분리제1연결장치(110)를 이용하여 교체대상지상변압기(210)의 고압출력측엘보접속단자(212)로부터 고압출력측엘보접속재(HA211)를 분리하고, 상기 3상일괄분리제2연결장치(120)를 이용하여 제1교체미대상지상변압기(220)의 고압입력측엘보접속단자(223)로부터 고압입력측엘보접속재(HB221)를 3상일괄분리 한 다음, 상기 교체대상지상변압기(210)의 고압입력축엘보접속재(HA211)에 설치된 3상일괄분리제1연결장치(110)를 교체대상지상변압기(210)로부터 분리하는 제2공정(S12);
상기 제2공정(S12)의 3상일괄분리제2연결장치(120)에 의해 고압입력측엘보접속재(HB221)가 분리된 제1교체미대상지상변압기(220)의 고압입력측엘보접속단자(223)를 피드쓰루(400)에 전기적으로 연결하고 고압바이패스케이블로 상기 이동용변압기차량(300)의 공사용개폐기(310)와 상기 피드쓰루(400)를 전기적으로 연결한 후, 저압바이패스케이블을 교체대상지상변압기(210)의 저압터미널단자(214)에 전기적으로 연결하는 제3공정(S13);
상기 제2공정(S12)에 의해 분리된 제1교체미대상변압기(220)의 고압입력측엘보접속재(HB221)를 3상일괄분리제2연결장치(120)를 이용하여 제1교체미대상변압기(220)의 고압입력측엘보접속단자(213)에 연결하고 상기 이동용변압기차량(300)의 공사용개폐기(310)를 ON시킨 후 이동용변압기차량(300)의 저압측 전압을 측정한 다음, 상기 이동용변압기차량(300)의 저압차단기(330)를 ON시키는 제4공정(S14);
상기 교체대상지상변압기(210)의 타측에 위치된 제2교체미대상변압기(230)에 3상일괄분리제3연결장치(130)를 설치한 후, 제2교체미대상변압기(230)의 고압출력측엘보접속단자(233)로부터 고압출력측엘보접속재(HA231)를 분리하고 교체대상지상변압기(210)의 고압출력측엘보접속재(HB211) 및 저압단자(213)를 분리한 다음, 교체대상지상변압기(210)를 새것의 교체지상변압기(600)로 교체하는 제5공정(S15)으로 이루어지는 것을 특징으로 하는 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법.In the uninterruptible replacement method of a terrestrial transformer for replacing any one terrestrial transformer among a plurality of terrestrial transformers each provided with an elbow connector, a plurality of high-voltage output side elbow connectors, and a plurality of low-voltage terminal terminals,
A ground transformer to be replaced (210) for which the three-phase separator is to be replaced, a first ground transformer not to be replaced (220) located on one side of the ground transformer to be replaced (210), and the other side of the ground transformer to be replaced (210). It is installed on the second non-replaceable ground transformer (230) located at , and uses a mobile transformer vehicle (300) and a feed through (400) having a construction switch (310), a transformer (320), and a low-voltage circuit breaker (330). It is equipped with a ground transformer replacement process (S1) to replace the ground transformer and a new replacement ground transformer installation process (S2),
The replacement process (S1) for the ground transformer to be replaced is,
Install a mobile transformer vehicle (300) with a construction switch (310), a transformer (320), and a low-voltage circuit breaker (330), and install it in a three-phase batch on the high-voltage output side elbow connection material (HB211) of the ground transformer (210) to be replaced. Install the first separation connecting device 110 and connect the second three-phase collective separation to the high-voltage input side elbow connection material (HA221) of the first ground transformer not subject to replacement 220 located on one side of the ground transformer subject to replacement 210. The first process (S11) of installing the device 120;
After turning on the terminal 510 of the ground switch 500 electrically connected to the ground transformer to be replaced (210), the ground transformer to be replaced (210) is connected using the first three-phase disconnection device (110). Separate the high-pressure output side elbow connection material (HA211) from the high-pressure output side elbow connection terminal 212, and connect the high-voltage input side elbow of the first non-replaceable ground transformer 220 using the 3-phase collective separation second connection device 120. After separating the three phases of the high voltage input side elbow connection material (HB221) from the terminal 223, the first three phase separation connection device 110 installed on the high voltage input shaft elbow connection material (HA211) of the ground transformer 210 to be replaced is separated. A second process (S12) of separating from the ground transformer to be replaced (210);
The high-voltage input side elbow connection terminal (223) of the first non-replaceable ground transformer (220) from which the high-voltage input side elbow connection material (HB221) is separated by the three-phase batch separation second connection device (120) in the second process (S12). After electrically connecting to the feed through (400) and electrically connecting the construction switch (310) of the mobile transformer vehicle (300) and the feed through (400) with a high voltage bypass cable, the low voltage bypass cable is subject to replacement. A third process (S13) of electrically connecting to the low-voltage terminal terminal 214 of the ground transformer 210;
The high-voltage input side elbow connection material (HB221) of the first non-replaceable transformer 220 separated by the second process (S12) is connected to the first non-replaceable transformer ( 220), connect it to the high-voltage input side elbow connection terminal 213, turn on the construction switch 310 of the mobile transformer vehicle 300, measure the low-voltage side voltage of the mobile transformer vehicle 300, and then The fourth process (S14) of turning on the low-voltage circuit breaker 330 of (300);
After installing the three-phase collective separation third connection device 130 on the second non-replaceable transformer 230 located on the other side of the replacement ground transformer 210, the high voltage of the second non-replaceable transformer 230 Separate the high-pressure output side elbow connection material (HA231) from the output side elbow connection terminal 233, separate the high-pressure output side elbow connection material (HB211) and the low-pressure terminal 213 of the replacement target ground transformer 210, and then replace the replacement target ground transformer 210. ), an uninterruptible replacement method for a ground transformer using a 3-phase collective separation connection device and a feedthrough, characterized in that it consists of the fifth process (S15) of replacing the ground transformer (600) with a new replacement ground transformer (600).
상기 새것의 교체대상지상변압기 설치공정(S2)은,
교체된 새것의 교체지상변압기(600)의 고압바이패스케이블 및 저압바이패스케이블을 각각 전기적으로 연결하고 상기 제2교체미대상지상변압기(230)의 분리된 고압출력측엘보접속재(HA231)를 고압출력측엘보접속단자(232)에 연결하고 이동용변압기차량(300)의 저압차단기(330)를 OFF 시키는 설치제1공정(S21);
교체된 새것의 교체지상변압기(600)에 연결된 저압바이패스케이블을 분리한 후 이동용변압기차량(300)의 공사용개폐기(310)를 OFF하고 제1교체미대상지상변압기(220)의 고압입력측엘보접속재(HB221)를 고압입력측엘보접속단자(223)에 연결한 다음, 교체된 새것의 교체지상변압기(600)의 고압출력측엘보접속단자(611)에 고압출력측엘보접속재(HA611)를 연결하고 상기 제2공정(S12)에 의해 ON 시킨 지상개폐기(500)의 단자(510)를 OFF시키는 설치제2공정(S22)으로 이루어지는 것을 특징으로 하는 지상변압기 엘보접속재 3상일괄분리연결장치와 피드쓰루를 이용한 지상변압기 무정전교체방법.According to paragraph 1,
The installation process (S2) of the new ground transformer to be replaced is,
The high-voltage bypass cable and the low-voltage bypass cable of the new replacement ground transformer (600) are electrically connected, respectively, and the separated high-pressure output side elbow connector (HA231) of the second non-replacement ground transformer (230) is connected to the high-pressure output side. The first installation process (S21) of connecting to the elbow connection terminal 232 and turning off the low-voltage circuit breaker 330 of the mobile transformer vehicle 300;
After disconnecting the low-voltage bypass cable connected to the new replacement ground transformer (600), turn off the construction switch (310) of the mobile transformer vehicle (300) and connect the high-voltage input side elbow connector of the first non-replacement ground transformer (220). (HB221) is connected to the high pressure input side elbow connection terminal 223, and then the high pressure output side elbow connection material (HA611) is connected to the high pressure output side elbow connection terminal 611 of the new replacement ground transformer 600, and the second A ground transformer elbow connection material, characterized in that it consists of a second installation process (S22) of turning off the terminal 510 of the ground switch 500 turned ON in the process (S12). Transformer uninterruptible replacement method.
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| KR1020220027883A KR102622675B1 (en) | 2022-03-04 | 2022-03-04 | The ground transformer uninterruptible replacement method using the ground transformer elbow connector three phase batch separation connection apparatus and feed through |
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| KR (1) | KR102622675B1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100769583B1 (en) | 2006-07-04 | 2007-10-23 | 주식회사 평일 | Uninterruptible hpower replacing method of transfermer for underground power distrbution line |
| KR101905441B1 (en) | 2018-05-02 | 2018-12-05 | 주식회사 디투엔지니어링 | Elbow Insert and its application for live line replacement of the pad mounted transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100904815B1 (en) * | 2007-08-27 | 2009-06-25 | 주식회사 동부하이텍 | Image Sensor and Method for Manufacturing Thereof |
| KR102221175B1 (en) | 2019-05-26 | 2021-03-05 | 김용규 | Uninterrupted Ground Transformer Replacement Method |
| KR20210022908A (en) | 2019-08-21 | 2021-03-04 | 한국전력공사 | Exchange apparatus and method for trasformer with uninterruptible power supply |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100769583B1 (en) | 2006-07-04 | 2007-10-23 | 주식회사 평일 | Uninterruptible hpower replacing method of transfermer for underground power distrbution line |
| KR101905441B1 (en) | 2018-05-02 | 2018-12-05 | 주식회사 디투엔지니어링 | Elbow Insert and its application for live line replacement of the pad mounted transformer |
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| KR20230130823A (en) | 2023-09-12 |
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