KR200445376Y1 - Nipper type access device for separation low-voltagecable of transformer - Google Patents

Nipper type access device for separation low-voltagecable of transformer Download PDF

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Publication number
KR200445376Y1
KR200445376Y1 KR2020090004858U KR20090004858U KR200445376Y1 KR 200445376 Y1 KR200445376 Y1 KR 200445376Y1 KR 2020090004858 U KR2020090004858 U KR 2020090004858U KR 20090004858 U KR20090004858 U KR 20090004858U KR 200445376 Y1 KR200445376 Y1 KR 200445376Y1
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South Korea
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holes
circular
transformer
low voltage
fixed
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KR2020090004858U
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Korean (ko)
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강병삼
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(유)전일기술단
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/10—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using pivoting jaws
    • 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
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/02—Intermediate parts for distributing energy to two or more circuits in parallel, e.g. splitter

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Cable Installation (AREA)

Abstract

본 고안은 지상 변압기의 교체를 위해 2차측 저압케이블의 연결단자를 부싱에서 접속 상태로 분리하는 변압기의 저압케이블 분리용 접속장치에 있어서; 정단면이 직사각으로 전후방측으로 긴 직사각관체로 좌우측면에는 길이방향으로 길게 좌우측슬라이딩장공이 각각 형성되고, 우측슬라이딩장공 상하측의 선단면에는 전후방측으로 상하측기어열이 연속적으로 형성되며, 상하면중심에는 전후방측으로 길게 상하측이동지지장공이 각각 형성되는 합성수지재질의 사각지지틀과; 상기 사각지지틀의 좌우측슬라이딩장공에 좌우측에서 삽입되어 전후방측에 각각 위치되는 판체로 우측선단부에는 상하측이동지지장공 연장선상에 체결공이 형성되고, 체결공을 중심측으로 내측으로 반원형상의 반원돌부가 형성되며, 체결공 상하면에는 각각 상기 상하측이동지지장공의 두께를 갖고 체결공연장선상에 통공을 갖는 상하측사각안내판이 각각 용착고정되고, 우측선단면에는 후방측으로 앵커볼트가 돌출되며, 상기 사각지지틀 좌측면에서 기립되는 판체로 중심에는 앵커볼트가 관통되는 볼트끼움공을 갖고 좌측면에는 상기 상하측기어열에 대응되어 밀착고정되는 기어열을 갖으며 볼트끼움공을 관통한 앵커볼트 선단에 너트고정되는 고정너트를 갖고 앵커볼트에 끼워진 스프링의 탄성으로 밀착고정되는 전후방측스토퍼가 형성되고, 좌측선단면에는 좌측으로 연장되어 내측으로 반원홈을 갖되 반원홈 중심측에는 내측으로 통전선에 의해 연결되어 통전되는 전후방접속봉이 각각 안착되는 봉홈을 갖는 집게발이 각각 형성되며, 전후방측의 집게발 반원홈에 2차측 저압케이블의 연결단자와 연결 케이블이 각각 위치되어 통전이 이루어지는 전후방측고정집게와; 상기 사각지지틀의 상하면에 위치되는 ㄷ자형상의 프레임으로 우측상하부에는 상기 체결공의 연장선상에 베어링이 삽입되는 상하측베어링삽입홈이 각각 형성되고, 상기 베어링의 중심에는 축볼트가 삽입되는 축공이 형성되며, 상기 상하측베어링삽입홈을 기준으로 원형궤적을 갖는 상하측원형판체가 형성되고, 상하측원형판체 외주연에는 일방향으로 각도를 갖고 기울게 돌출된 일방향기어열이 각각 형성되며, 우측선단면에는 우측으로 절연재질의 절연손잡이가 고정설치되고, 좌측선단에는 상기 전후방측고정집게의 반원홈과 원형궤적을 이루는 반원홈을 갖는 반원관 중심측이 회동축에 의해 회동가능하게 축결합되며, 상기 상하측이동지지장공을 통해 상기 체결공 주변에 용착고정되되 탄발스프링의 의해 일방향기어열과 밀착되어 좌측선단부의 반원관이 상기 전후방측고정집게의 반원홈과 밀착되는 방향으로는 회동가능하고 그 역방향으로는 회동을 방지시키는 삽입고정돌부를 갖는 전후방측풀림방지구가 형성되는 전후방측회동집게를 구비하는 변압기의 저압케이블 분리용 집게형 접속장치에 관한 것이다.The present invention provides a connection device for separating low voltage cables of a transformer for separating the connection terminal of the secondary low voltage cable in the bushing state for replacement of the ground transformer; The rectangular section is a long rectangular tube with a front end in a rectangular direction. The left and right sliding holes are formed on the left and right sides in the longitudinal direction, respectively, and the upper and lower gear trains are continuously formed on the front and rear sides of the upper and lower right sliding holes. Square support frame made of a synthetic resin material which is formed in each of the vertical movement support holes long forward and backward; Plates are inserted into the left and right sliding holes on the left and right sliding holes of the rectangular support frame and positioned on the front and rear sides, respectively, and the right end portion has fastening holes formed on the upper and lower movable support hole extension lines, and the semi-circular semicircular protrusions are formed inward toward the center of the fastening hole. The upper and lower fastening holes respectively have a thickness of the upper and lower movable support holes, and upper and lower square guide plates each having a hole on the fastening extension line are welded and fixed, and an anchor bolt protrudes to the rear side at the right end surface, and the square support frame A plate body standing up on the left side has a bolt fitting hole through which an anchor bolt penetrates in the center, and a left side has a gear row that is tightly fixed corresponding to the upper and lower gear rows, and a nut is fixed to the end of the anchor bolt passing through the bolt fitting hole. A front and rear side stopper having a fixing nut and tightly fixed by elasticity of a spring fitted to the anchor bolt is formed. The left end face has a semicircular groove extending in the left side and having a semicircular groove inward, and each side of the semicircular groove is formed with claws having rod grooves in which the front and rear connecting rods are respectively connected by an energizing line. A front and rear fixed clamp having a connecting terminal and a connecting cable of the secondary low-voltage cable respectively positioned to conduct electricity; Upper and lower bearing insertion grooves are formed in the U-shaped frame positioned on the upper and lower sides of the square support frame, and the upper and lower bearing insertion grooves are inserted in the extension lines of the fastening holes, respectively. It is formed, the upper and lower circular plate body having a circular trajectory is formed on the basis of the upper and lower bearing insertion groove, the one-way gear train protruding inclined at an angle in one direction is formed on the outer periphery of the upper and lower circular plate, respectively, Insulating handle of insulating material is fixedly installed on the right side, and the center side of the semi-circular tube having the semi-circular groove of the front and rear fixed clamps and the semi-circular groove forming the circular trajectory is pivotally rotatably coupled by the rotating shaft. It is welded and fixed around the fastening hole through the side movement support hole, but is in close contact with the one-way gear train by the ball spring. A transformer having a front and rear pivot pin, in which a semicircular tube is rotatable in a direction in which the semicircular tube is in close contact with the semicircular groove of the front and rear fixator, and a front and rear release lock having an insert fixing protrusion for preventing rotation in the reverse direction thereof. It relates to a clamp-type connection device for low voltage cable separation.

이러한 본 고안은 무정전 상태로 변압기 교체시에 2차측 저압케이블을 접속 상태로 분리하되, 상기 저압케이블이 연결된 연결단자가 2차측 부싱과 분리형으로 연결되어 저압 케이블의 연결단자를 집게형 접속장치에 의해 접속 및 클램핑한 상태로 효과적으로 분리하므로서 안전성 및 작업성을 극대화시키는 효과가 있다.The present invention is to disconnect the secondary low voltage cable in the uninterrupted state when the transformer is replaced, but the low voltage cable is connected to the secondary side bushing and the detachable type is connected to the secondary terminal bushing by the tong type connecting device By effectively separating in the connected and clamped state, there is an effect to maximize the safety and workability.

사각지지틀, 전후방측고정집게, 전후방측회동집게 Square support frame, front and rear locking clamp, front and rear pivoting clamp

Description

변압기의 저압케이블 분리용 집게형 접속장치{Nipper type access device for separation low-voltagecable of transformer}Nipper type access device for separation low-voltagecable of transformer}

본 고안은 변압기의 저압케이블 분리용 집게형 접속장치에 관한 것으로서, 보다 상세하게는 무정전 상태로 변압기 교체시에 2차측 저압케이블을 접속 상태로 분리하되, 상기 저압케이블이 연결된 연결단자가 2차측 부싱과 분리형으로 연결되어 저압 케이블의 연결단자를 집게형 접속장치에 의해 접속 및 클램핑한 상태로 효과적으로 분리하므로서 안전성 및 작업성을 극대화시키는 변압기의 저압케이블 분리용 집게형 접속장치에 관한 것이다. The present invention relates to a clamp-type connection device for separating a low voltage cable of a transformer, and more particularly, when the transformer is replaced with an uninterrupted state, the secondary low voltage cable is disconnected in a connected state, but the connection terminal to which the low voltage cable is connected is connected to the secondary side bushing. The present invention relates to a clamp-type connecting device for separating a low voltage cable of a transformer that maximizes safety and workability by effectively separating the connecting terminal of a low-voltage cable by being connected and clamped by a tong-type connecting device.

일반적으로 지중 배전선로에는 가정이나 산업용 각종 설비 등에 전력 공급시에 발전소로부터 송전선을 통해 공급되는 22.9 KV의 특고압을 가정이나 산업용 각종 설비에 적합한 220/380 V의 저전압으로 공급하기 위하여 전압을 강하하는 수단으로 지상 변압기가 사용되고 있다.In general, underground distribution lines have a voltage drop in order to supply 22.9 KV of extra high voltage supplied from power plants through power transmission lines at homes or industrial facilities at low voltages of 220/380 V suitable for various home and industrial facilities. Ground transformers are used as a means.

이러한 지상변압기는 특고압이 공급되는 1차측에는 특고압케이블의 단부에 연결된 엘보가 1차측 부싱에 연결되고, 저압이 공급되는 2차측 저압케이블의 단부에 연결된 연결단자는 2차측 부싱에 연결되는 구조로 이루어진다.The ground transformer has a structure in which an elbow connected to the end of the extra high voltage cable is connected to the primary side bushing on the primary side to which the extra high pressure is supplied, and a connecting terminal connected to the end of the secondary low voltage cable to supply the low pressure is connected to the secondary side bushing. Is made of.

이러한 변압기는 노후화나 과부하에 의하여 변압기에 이상(고장)이 발생하면 정상적으로 동작하는 변압기로 교체하여야 하는데, 이때 상기 1,2차측 부싱에서 특고압케이블과 저압케이블을 각각 분리한 형태로 변압기를 교체하게 된다.These transformers should be replaced with transformers that normally operate when a fault occurs in the transformer due to aging or overload. In this case, the transformer should be replaced by separating the high voltage cable and the low voltage cable from the primary and secondary bushings. do.

특히 상기 변압기의 분리시에는 변압기의 전원을 차단하는 일시 정전 상태로 변압기를 교체하거나 상기 변압기의 전원을 활선 상태로 계속 접속 연결하여 수용가로 전원을 계속 공급하면서 변압기를 교체하게 된다.In particular, when the transformer is separated, the transformer is replaced with a temporary power failure state that cuts off the power of the transformer, or the power is continuously connected and connected to the transformer in a live state to continuously supply power to the customer, thereby replacing the transformer.

상기 무정전 상태로 변압기를 교체하는 경우에 2차측 저압케이블은 수용가와 계속적으로 접속된 상태로 분리하게 된다.When the transformer is replaced with the uninterrupted state, the secondary low voltage cable is disconnected while being continuously connected to the customer.

이때, 상기 저압케이블이 연결되는 2차측 연결단자는 부싱과 일체로 결합된 형태의 일체형과, 부싱에 나사식으로 결합되는 분리형으로 구분되는데, 이러한 2차측 저압케이블을 종래에는 효과적으로 접속한 상태로 안전하게 분리하기 위한 별도의 장치가 마련되어 있지 않아 안전성은 물론 작업성이 저하되는 문제점이 있었다.At this time, the secondary connection terminal to which the low voltage cable is connected is divided into an integral type of integrally coupled with the bushing, and a detachable type screwed to the bushing. Since no separate device is provided for separation, there is a problem that safety and workability are deteriorated.

본 고안은 상기와 같은 문제점을 해결하기 위한 것으로서, 무정전 상태로 변압기 교체시에 2차측 저압케이블을 접속 상태로 분리하되, 상기 저압케이블이 연결된 연결단자가 2차측 부싱과 분리형으로 연결되어 저압 케이블의 연결단자를 집게형 접속장치에 의해 접속 및 클램핑한 상태로 효과적으로 분리하므로서 안전성 및 작업성을 극대화시키는 변압기의 저압케이블 분리용 집게형 접속장치를 제공함에 그 목적이 있다.The present invention is to solve the above problems, when the transformer in the uninterrupted state to disconnect the secondary side low-voltage cable in a connected state, the low-voltage cable is connected to the secondary side bushing and the detachable type of the low-voltage cable It is an object of the present invention to provide a tong-type connecting device for separating a low voltage cable of a transformer that maximizes safety and workability by effectively separating the connecting terminal in the state of being connected and clamped by a tong-type connecting device.

이와 같은 목적을 달성하기 위하여, 본 고안은 지상 변압기의 교체를 위해 2차측 저압케이블의 연결단자를 부싱에서 접속 상태로 분리하는 변압기의 저압케이블 분리용 접속장치에 있어서;In order to achieve the above object, the present invention is to provide a connection device for separating the low voltage cable of the transformer for disconnecting the connection terminal of the secondary low voltage cable in the bushing state for replacement of the ground transformer;

정단면이 직사각으로 전후방측으로 긴 직사각관체로 좌우측면에는 길이방향으로 길게 좌우측슬라이딩장공이 각각 형성되고, 우측슬라이딩장공 상하측의 선단면에는 전후방측으로 상하측기어열이 연속적으로 형성되며, 상하면중심에는 전후방측으로 길게 상하측이동지지장공이 각각 형성되는 합성수지재질의 사각지지틀과;The rectangular section is a long rectangular tube with a front end in a rectangular direction. The left and right sliding holes are formed on the left and right sides in the longitudinal direction, respectively, and the upper and lower gear trains are continuously formed on the front and rear sides of the upper and lower right sliding holes. Square support frame made of a synthetic resin material which is formed in each of the vertical movement support holes long forward and backward;

상기 사각지지틀의 좌우측슬라이딩장공에 좌우측에서 삽입되어 전후방측에 각각 위치되는 판체로 우측선단부에는 상하측이동지지장공 연장선상에 체결공이 형성되고, 체결공을 중심측으로 내측으로 반원형상의 반원돌부가 형성되며, 체결공 상하면에는 각각 상기 상하측이동지지장공의 두께를 갖고 체결공연장선상에 통공을 갖는 상하측사각안내판이 각각 용착고정되고, 우측선단면에는 후방측으로 앵커볼트가 돌출되며, 상기 사각지지틀 좌측면에서 기립되는 판체로 중심에는 앵커볼트가 관통되는 볼트끼움공을 갖고 좌측면에는 상기 상하측기어열에 대응되어 밀착고정되는 기어열을 갖으며 볼트끼움공을 관통한 앵커볼트 선단에 너트고정되는 고정너트를 갖고 앵커볼트에 끼워진 스프링의 탄성으로 밀착고정되는 전후방측스토퍼가 형성되고, 좌측선단면에는 좌측으로 연장되어 내측으로 반원홈을 갖되 반원홈 중심측에는 내측으로 통전선에 의해 연결되어 통전되는 전후방접속봉이 각각 안착되는 봉홈을 갖는 집게발이 각각 형성되며, 전후방측의 집게발 반원홈에 2차측 저압케이블의 연결단자와 연결케이블이 각각 위치되어 통전이 이루어지는 전후방측고정집게와;Plates are inserted into the left and right sliding holes on the left and right sliding holes of the rectangular support frame and positioned on the front and rear sides, respectively, and the right end portion has fastening holes formed on the upper and lower movable support hole extension lines, and the semi-circular semicircular protrusions are formed inward toward the center of the fastening hole. The upper and lower fastening holes respectively have a thickness of the upper and lower movable support holes, and upper and lower square guide plates each having a hole on the fastening extension line are welded and fixed, and an anchor bolt protrudes to the rear side at the right end surface, and the square support frame A plate body standing up on the left side has a bolt fitting hole through which an anchor bolt penetrates in the center, and a left side has a gear row that is tightly fixed corresponding to the upper and lower gear rows, and a nut is fixed to the end of the anchor bolt passing through the bolt fitting hole. A front and rear side stopper having a fixing nut and tightly fixed by elasticity of a spring fitted to the anchor bolt is formed. The left end face has a semicircular groove extending in the left side and having a semicircular groove inward, and each side of the semicircular groove is formed with claws having rod grooves in which the front and rear connecting rods are respectively connected by an energizing line. A front and rear fixing clamp having a connecting terminal and a connecting cable of the secondary low voltage cable, respectively, to conduct electricity;

상기 사각지지틀의 상하면에 위치되는 ㄷ자형상의 프레임으로 우측상하부에는 상기 체결공의 연장선상에 베어링이 삽입되는 상하측베어링삽입홈이 각각 형성되고, 상기 베어링의 중심에는 축볼트가 삽입되는 축공이 형성되며, 상기 상하측베어링삽입홈을 기준으로 원형궤적을 갖는 상하측원형판체가 형성되고, 상하측원형판체 외주연에는 일방향으로 각도를 갖고 기울게 돌출된 일방향기어열이 각각 형성되며, 우측선단면에는 우측으로 절연재질의 절연손잡이가 고정설치되고, 좌측선단에는 상기 전후방측고정집게의 반원홈과 원형궤적을 이루는 반원홈을 갖는 반원관 중심측이 회동축에 의해 회동가능하게 축결합되며, 상기 상하측이동지지장공을 통해 상기 체결공 주변에 용착고정되되 탄발스프링의 의해 일방향기어열과 밀착되어 좌측선단부의 반원관이 상기 전후방측고정집게의 반원홈과 밀착되는 방향으로는 회동 가능하고 그 역방향으로는 회동을 방지시키는 삽입고정돌부를 갖는 전후방측풀림방지구가 형성되는 전후방측회동집게를 구비하는 특징이 있다.Upper and lower bearing insertion grooves are formed in the U-shaped frame positioned on the upper and lower sides of the square support frame, and the upper and lower bearing insertion grooves are inserted in the extension lines of the fastening holes, respectively. It is formed, the upper and lower circular plate body having a circular trajectory is formed on the basis of the upper and lower bearing insertion groove, the one-way gear train protruding inclined at an angle in one direction is formed on the outer periphery of the upper and lower circular plate, respectively, Insulating handle of insulating material is fixedly installed on the right side, and the center side of the semi-circular tube having the semi-circular groove of the front and rear fixed clamps and the semi-circular groove forming the circular trajectory is pivotally rotatably coupled by the rotating shaft. It is welded and fixed around the fastening hole through the side movement support hole, but is in close contact with the one-way gear train by the ball spring. The semicircular tube is capable of turning in a direction in which the semicircular tube is in close contact with the semicircular groove of the front and rear side fixing forceps, and has a front and rear side turning pincer formed with a front and rear side release lock having an insertion fixing protrusion preventing rotation in the reverse direction. have.

이와 같이, 본 고안은 무정전 상태로 변압기 교체시에 2차측 저압케이블을 접속 상태로 분리하되, 상기 저압케이블이 연결된 연결단자가 2차측 부싱과 분리형으로 연결되어 저압 케이블의 연결단자를 집게형 접속장치에 의해 접속 및 클램핑한 상태로 효과적으로 분리하므로서 안전성 및 작업성을 극대화시키는 효과가 있다.In this way, the present invention is to disconnect the secondary low voltage cable in the uninterrupted state when replacing the transformer, but the low voltage cable is connected to the secondary side bushing and the detachable type is connected to the secondary side bushings of the low voltage cable tongs connecting device By effectively separating in the connected and clamped state by the has the effect of maximizing safety and workability.

본 고안은 상술한 특정의 바람직한 실시 예에 한정되지 아니하며, 청구범위에서 청구하는 본 고안의 요지를 벗어남이 없이 당해 고안이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

이하, 본 고안을 첨부된 도면에 의해 보다 상세하게 설명하면 다음과 같다.Hereinafter, the present invention in more detail by the accompanying drawings as follows.

도 1은 본 고안 일 실시 예인 변압기의 저압케이블 분리용 집게형 접속장치의 모습을 보인 사시도이고, 도 2는 본 고안 일 실시 예인 변압기의 저압케이블 분리용 집게형 접속장치의 체결모습을 보인 분리 사시도이며, 도 3은 본 고안 일 실시 예인 변압기의 저압케이블 분리용 집게형 접속장치의 작동모습을 보인 평면도이고, 도 4는 본 고안 일 실시 예인 변압기의 저압케이블 분리용 집게형 접속장치의 일방향기어열과 전후방측풀림방지구의 모습을 보인 요부확대 평단면도이며, 도 5는 본 고안 일 실시 예인 변압기의 저압케이블 분리용 집게형 접속장치의 전후방측스토퍼의 작동모습을 보인 요부확대 평단면도이다.1 is a perspective view showing the appearance of a clamp-type connecting device for separating the low pressure cable of the transformer according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing the fastening of the clip-type connecting device for separating the low pressure cable of the transformer according to an embodiment of the present invention 3 is a plan view showing the operation of the low-voltage cable tongs type connecting device of the transformer according to an embodiment of the present invention, Figure 4 is a one-way gear train of the forceps-type connecting device to separate the low-voltage cable of an embodiment of the present invention An enlarged sectional view of the main part showing the front and rear side loosening protection, Figure 5 is an enlarged sectional view of the main part showing the operation of the front and rear side stopper of the clamp-type connecting device for low-voltage cable separation of the transformer according to an embodiment of the present invention.

참고로 본 고안을 설명함에 있어 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 고안의 요지를 불필요하게 흐릴 수 있다고 판단될 경우에는 그 상세한 설명을 생략하였다.For reference, in describing the present invention, when it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof is omitted.

또한, 후술되는 용어들은 본 고안에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운영자의 의도 또는 관례 등에 따라 달라질 수 있다.In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or an operator.

그러므로, 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것임은 물론이다.Therefore, the definition should be made based on the contents throughout the specification.

본 고안 변압기의 저압케이블 분리용 집게형 접속장치는, 지상 변압기의 교체를 위해 2차측 저압케이블의 연결단자(29)를 부싱에서 접속 상태로 분리하는 장치로, 전후방측고정집게(20,20a)와 전후방측회동집게(30,30a)가 각각 한 쌍으로 결합되어 슬라이딩 이동되는 사각지지틀(10)과, 사각지지틀(10)의 전후방측에 전후방측스토퍼(28,28a)에 의해 고정설치되는 전후방측고정집게(20,20a)와, 전후방측고정집게(20,20a)에 회동가능하게 축결합되어 2차측 저압케이블의 연결단자(29)와 연결케이블(29a)를 고정지지하는 전후방측회동집게(30,30a)로 구성된다.The clamp-type connecting device for separating the low voltage cable of the present invention is a device for separating the connecting terminal 29 of the secondary low voltage cable in the bushing state in order to replace the ground transformer, and the front and rear fixing clamps 20 and 20a. And front and rear rotation clamps (30, 30a) are coupled to each other by a pair of square support frame 10 which is slid and moved, and fixed installation by front and rear side stoppers (28, 28a) on the front and rear sides of the square support frame (10) The front and rear side fixing clamps 20 and 20a and the front and rear fixing clamps 20 and 20a are pivotally coupled to each other so that the connecting terminal 29 and the connecting cable 29a of the secondary low pressure cable are fixedly supported. Rotating tongs 30, 30a.

상기 사각지지틀(10)은 정단면이 직사각으로 전후방측으로 긴 합성수지재질의 직사각관체로 좌우측면에는 길이방향으로 길게 좌우측슬라이딩장공(12,12a)이 각각 형성되고, 우측슬라이딩장공(12a) 상하측의 선단면에는 전후방측으로 상하측기어열(13,13a)이 연속적으로 형성되며, 상하면중심에는 전후방측으로 길게 상하측 이동지지장공(11,11a)이 각각 형성된다. The rectangular support frame 10 is a rectangular tube of synthetic resin material whose front end is rectangular in the front and rear sides, and the left and right sliding long holes 12 and 12a are formed on the left and right sides in the longitudinal direction, respectively, and the upper and lower right sliding long holes 12a. The top and bottom gear trains 13 and 13a are continuously formed in the front and rear sides of the front end face, and the upper and lower moving support holes 11 and 11a are respectively formed in the upper and lower center in the front and rear sides.

상기 전후방측고정집게(20,20a)는 상기 사각지지틀(10)의 좌우측슬라이딩장공(12,12a)에 좌우측에서 삽입되어 전후방측에 각각 위치되는 판체로 우측선단부에는 상하측이동지지장공(11,11a) 연장선상에 체결공(24)이 형성되고, 체결공(24)을 중심측으로 내측으로 반원형상의 반원돌부(25)가 형성되며, 체결공(24) 상하면에는 각각 상기 상하측이동지지장공(11,11a)의 두께를 갖고 체결공(24) 연장선상에 통공(26b)을 갖는 상하측사각안내판(26,26a)이 각각 용착고정되고, 우측선단면에는 후방측으로 앵커볼트(27)가 수평돌출되며, 상기 사각지지틀(10) 좌측면에서 기립되는 판체로 중심에는 앵커볼트(27)가 관통되는 볼트끼움공(28b)을 갖고 좌측면에는 상기 상하측기어열(13,13a)에 각각 대응되어 밀착고정되는 기어열(28c)을 갖으며 볼트끼움공(28b)을 관통한 앵커볼트(27) 선단에 너트고정되는 고정너트(28e)를 갖고 앵커볼트(27)에 끼워진 스프링(28d)의 탄성으로 밀착고정되는 전후방측스토퍼(28,28a)가 형성되고, 좌측선단면에는 좌측으로 연장되어 내측으로 반원홈(22)을 갖되 반원홈(22) 중심측에는 내측으로 통전선(23c)에 의해 연결되어 통전되는 전후방접속봉(23a,23b)이 각각 안착되는 봉홈(23)을 갖는 집게발(21)이 각각 형성되며, 전후방측의 집게발(21) 반원홈(22)에 2차측 저압케이블의 연결단자(29)와 연결케이블(29a)이 각각 위치되어 통전이 이루어진다. The front and rear fixing clamps (20, 20a) is inserted into the left and right sliding long holes (12, 12a) of the rectangular support frame (10, 12a) is a plate body located in the front and rear sides, respectively, the upper and lower movable support holes (11) 11a) a fastening hole 24 is formed on an extension line, and a semicircular semicircular protrusion 25 is formed inward toward the center of the fastening hole 24, and the upper and lower movable supporting holes are respectively formed on the upper and lower sides of the fastening hole 24, respectively. Upper and lower square guide plates 26 and 26a having a thickness of 11 and 11a and having through holes 26b on the extension lines of the fastening holes 24 are respectively welded and anchor bolts 27 to the rear side on the right end surface. It is horizontally projected, the plate body standing on the left side of the rectangular support frame 10 has a bolt fitting hole (28b) through the anchor bolt 27 in the center and the upper and lower gear train (13, 13a) on the left side Anchor bolts 27 lines having a gear train 28c corresponding to each other and penetrating the bolt fitting holes 28b. The front and rear side stoppers 28 and 28a, which are tightly fixed by the elasticity of the spring 28d fitted to the anchor bolt 27 with the fixing nut 28e fixed to the nut, are formed. A nipper 21 having a semicircular groove 22 but having a rod groove 23 on which the front and rear connecting rods 23a and 23b are respectively connected to the center of the semicircular groove 22 and are energized by an electric current line 23c. Each of them is formed, the front and rear side of the claw (21) semicircular groove 22, the connection terminal 29 and the connection cable 29a of the secondary low-voltage cable are positioned to conduct electricity.

상기 전후방측회동집게(30,30a)는 상기 사각지지틀(10)의 상하면에 위치되는 ㄷ자형상의 프레임으로 우측상하부에는 상기 체결공(24)의 연장선상에 베어링(37,37a)이 삽입되는 상하측베어링삽입홈(31,31a)이 각각 형성되고, 상기 베어 링(37,37a)의 중심에는 축볼트(38,38a)가 삽입되는 축공(37b,37c)이 형성되며, 상기 상하측베어링삽입홈(31,31a)을 기준으로 원형궤적을 갖는 상하측원형판체(32,32a)가 각각 형성되고, 상하측원형판체(32,32a) 외주연에는 일방향으로 각도를 갖고 기울게 돌출된 일방향기어열(33,33a)이 각각 형성되며, 우측선단면에는 우측으로 절연재질의 절연손잡이(34)가 고정설치되고, 좌측선단에는 상기 전후방측고정집게(20,20a)의 반원홈(22)과 원형궤적을 이루는 반원홈(35a)을 갖는 반원관(35) 중심측이 회동축(35b)에 의해 회동가능하게 축결합되며, 상기 상하측이동지지장공(11,11a)을 통해 상기 체결공(24) 주변에 용착고정되되 내부 탄발스프링(36c)에 의해 일방향기어열(33,33a)과 밀착되어 좌측선단부의 반원관(35)이 상기 전후방측고정집게(20,20a)의 반원홈(22)과 밀착되는 방향으로는 회동가능하고 그 역방향으로는 회동을 방지시키는 삽입고정돌부(36b)를 갖는 전후방측풀림방지구(36,36a)가 형성된다. The front and rear rotation clamps (30, 30a) is a c-shaped frame located on the upper and lower surfaces of the rectangular support frame 10, the bearing (37, 37a) is inserted on the extension line of the fastening hole 24 in the upper and lower right Upper and lower bearing insertion grooves 31 and 31a are formed, respectively, and shaft holes 37b and 37c into which shaft bolts 38 and 38a are inserted are formed at the centers of the bearings 37 and 37a, respectively. Upper and lower circular plate bodies 32 and 32a having circular trajectories are formed based on the insertion grooves 31 and 31a, respectively, and one-way gears protruding at an angle in one direction and inclined at the outer periphery of the upper and lower circular plate bodies 32 and 32a. Rows 33 and 33a are formed, respectively, and an insulating handle 34 of insulating material is fixedly installed on the right end face, and the semicircular grooves 22 of the front and rear fixing clamps 20 and 20a are fixed to the left end. The center side of the semicircular tube 35 having the semicircular groove 35a constituting the circular trajectory is pivotally coupled by the rotation shaft 35b. The upper and lower movable support holes 11 and 11a are welded and fixed around the fastening hole 24, but are in close contact with the one-way gear trains 33 and 33a by the inner carbon spring 36c and the semi-circular pipe 35 of the left end part. The front and rear side loosening prevention means 36 having an insertion fixing protrusion 36b which is rotatable in a direction in close contact with the semicircular grooves 22 of the front and rear side fixing forceps 20 and 20a and prevents rotation in the opposite direction. 36a) is formed.

이와 같은 본 고안은, 사각지지틀(10)의 상하측이동지지장공(11,11a) 전방측에 전방측고정집게(20)와 전방측회동집게(30)를 전방측스토퍼(28)와 축볼트(38,38a) 및 전방측풀림방지구(36)로 전방측의 집게형 고정구를 형성시킨 다음, 사각지지틀(10)의 상하측이동지지장공(11,11a) 후방측에 후방측고정집게(20a)와 후방측회동집게(30a)를 후방측스토퍼(28a)와 축볼트(38,38a) 및 후방측풀림방지구(36a)로 후방측의 집게형 고정구를 형성시켜 전방측의 반원관(35) 반원홈(35a)과 반원홈(22)에 의해 각각 전후방측에서 각각 고정지지된 2차측 저압케이블의 연결단자(29)와 연결케이블(29a)은 봉홈(23)에 각각 위치되어 통전선(23c)에 의해 통전연 결된 전후방접속봉(23a,23b)에 의해 통전이 이루어진다.The present invention as described above, the front side fixing forceps 20 and the front side rotation tongs 30 and the front side stopper 28 and the shaft on the front side of the vertical moving support holes (11, 11a) of the square support frame (10) After forming the front clamp-type fasteners with the bolts 38 and 38a and the front side loosening prevention 36, the rear side fixing is carried out at the rear side of the upper and lower movable support holes 11 and 11a of the square support frame 10. A front semicircle is formed by forming a rear clamping type fastener by forming the clamp 20a and the rear pivot clamp 30a with the rear stopper 28a, the shaft bolts 38 and 38a, and the rear side loosening stop 36a. The connecting terminal 29 and the connecting cable 29a of the secondary side low pressure cable, which are respectively fixed in the front and rear sides by the semicircular groove 35a and the semicircular groove 22, respectively, are positioned in the rod groove 23, respectively. The electricity is supplied by the front and rear connecting rods 23a and 23b that are electrically connected by the electricity line 23c.

도 1은 본 고안 일 실시 예인 변압기의 저압케이블 분리용 집게형 접속장치의 모습을 보인 사시도, 1 is a perspective view showing a state of a clamp-type connecting device for separating a low voltage cable of an embodiment of the present invention;

도 2는 본 고안 일 실시 예인 변압기의 저압케이블 분리용 집게형 접속장치의 체결모습을 보인 분리 사시도, Figure 2 is an exploded perspective view showing the fastening of the clamp-type connecting device for separating the low voltage cable of an embodiment of the present invention,

도 3은 본 고안 일 실시 예인 변압기의 저압케이블 분리용 집게형 접속장치의 작동모습을 보인 평면도, 3 is a plan view showing the operation of the tongs type connection device for separating the low voltage cable of an embodiment of the present invention,

도 4는 본 고안 일 실시 예인 변압기의 저압케이블 분리용 집게형 접속장치의 일방향기어열과 전후방측풀림방지구의 모습을 보인 요부확대 평단면도, Figure 4 is an enlarged cross-sectional view showing the main portion of the one-way gear train and the front and rear side loosening prevention of the clamp-type connecting device for separating the low voltage cable of the transformer according to one embodiment of the present invention,

도 5는 본 고안 일 실시 예인 변압기의 저압케이블 분리용 집게형 접속장치의 전후방측스토퍼의 작동모습을 보인 요부확대 평단면도.Figure 5 is an enlarged cross-sectional view showing the main portion showing the operation of the front and rear side stopper of the tongs type connection device for separating the low-voltage cable of an embodiment of the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10 : 사각지지틀 11,11a : 상하측이동지지장공10: square support frame 11,11a: up and down moving supporter

12,12a : 좌우측슬라이딩장공 13,13a : 상하측기어열12,12a: Left and right sliding long hole 13,13a: Upper and lower gear row

20,20a : 전후방측고정집게 21 : 집게발20,20a: front and rear fixed clamp 21: claws

22 : 반원홈 23 : 봉홈22: semicircle groove 23: rod groove

23a,23b : 전후방접속봉 23c : 통전선23a, 23b: Front and rear connecting rod 23c: Electric wire

24 : 체결공 25 : 반원돌부24: fastener 25: semi-circular protrusion

26,26a : 상하측사각안내판 26b : 통공26, 26a: upper and lower square guide plate 26b: through hole

27 : 앵커볼트 28,28a : 전후방측스토퍼27: anchor bolt 28, 28a: front and rear side stopper

28b : 볼트끼움공 28c : 기어열28b: bolt hole 28c: gear row

28d : 스프링 28e : 고정너트28d: Spring 28e: Fixing Nut

29 : 2차측 저압케이블의 연결단자29: Connection terminal of secondary low voltage cable

29a : 연결케이블29a: connecting cable

30,30a : 전후방측회동집게 31,31a : 상하측베어링삽입홈30,30a: Front and rear pivoting forceps 31,31a: Upper and lower bearing insertion groove

32,32a : 상하측원형판체 33,33a : 일방향기어열32,32a: upper and lower circular plate 33,33a: one-way gear train

34 : 절연손잡이 35 : 반원관34: insulated handle 35: semi-circular tube

35a : 반원홈 35b : 회동축35a: Semicircle groove 35b: Rotating shaft

36,36a : 전후방측풀림방지구 36b : 삽입고정돌부36,36a: front and rear side release lock 36b: insertion fixing protrusion

36c : 탄발스프링 37,37a : 베어링36c: ball spring 37,37a: bearing

37b,37c : 축공37b, 37c: Shaft

Claims (1)

지상 변압기의 교체를 위해 2차측 저압케이블의 연결단자(29)를 부싱에서 접속 상태로 분리하는 변압기의 저압케이블 분리용 접속장치에 있어서;A connection device for disconnecting low voltage cables of a transformer, which disconnects the connection terminal 29 of the secondary low voltage cable from the bushing in order to replace the ground transformer; 정단면이 직사각으로 전후방측으로 긴 직사각관체로 좌우측면에는 길이방향으로 길게 좌우측슬라이딩장공(12,12a)이 각각 형성되고, 우측슬라이딩장공(12a) 상하측의 선단면에는 전후방측으로 상하측기어열(13,13a)이 연속적으로 형성되며, 상하면중심에는 전후방측으로 길게 상하측이동지지장공(11,11a)이 각각 형성되는 합성수지재질의 사각지지틀(10)과;Right and left sliding long holes 12 and 12a are formed in the longitudinal direction on the left and right sides, respectively, and the front and rear gear trains are arranged in the front and rear sides on the top and bottom sides of the right sliding long hole 12a. 13, 13a) are formed continuously, the square support frame 10 of synthetic resin material is formed in the upper and lower center, the vertical moving support holes (11, 11a) are formed long in the front and rear sides, respectively; 상기 사각지지틀(10)의 좌우측슬라이딩장공(12,12a)에 좌우측에서 삽입되어 전후방측에 각각 위치되는 판체로 우측선단부에는 상하측이동지지장공(11,11a) 연장선상에 체결공(24)이 형성되고, 체결공(24)을 중심측으로 내측으로 반원형상의 반원돌부(25)가 형성되며, 체결공(24) 상하면에는 각각 상기 상하측이동지지장공(11,11a)의 두께를 갖고 체결공(24) 연장선상에 통공(26b)을 갖는 상하측사각안내판(26,26a)이 각각 용착고정되고, 우측선단면에는 후방측으로 앵커볼트(27)가 수평돌출되며, 상기 사각지지틀(10) 좌측면에서 기립되는 판체로 중심에는 앵커볼트(27)가 관통되는 볼트끼움공(28b)을 갖고 좌측면에는 상기 상하측기어열(13,13a)에 각각 대응되어 밀착고정되는 기어열(28c)을 갖으며 볼트끼움공(28b)을 관통한 앵커볼트(27) 선단에 너트고정되는 고정너트(28e)를 갖고 앵커볼트(27)에 끼워진 스프링(28d)의 탄성으로 밀착고정되는 전후방측스토퍼(28,28a)가 형성되고, 좌측선 단면에는 좌측으로 연장되어 내측으로 반원홈(22)을 갖되 반원홈(22) 중심측에는 내측으로 통전선(23c)에 의해 연결되어 통전되는 전후방접속봉(23a,23b)이 각각 안착되는 봉홈(23)을 갖는 집게발(21)이 각각 형성되며, 전후방측의 집게발(21) 반원홈(22)에 2차측 저압케이블의 연결단자(29)와 연결케이블(29a)이 각각 위치되어 통전이 이루어지는 전후방측고정집게(20,20a)와;Fastening holes 24 are inserted into the left and right sliding long holes 12 and 12a of the rectangular support frame 10 and positioned on the front and rear sides, respectively. Is formed, the semi-circular semi-circular portion 25 is formed inward toward the center of the fastening hole 24, the fastening hole 24 has a thickness of the upper and lower movable supporting holes (11, 11a) on the upper and lower surfaces, respectively (24) The upper and lower square guide plates 26 and 26a each having a hole 26b on the extension line are welded and fixed, and the anchor bolt 27 protrudes horizontally to the rear side on the right front end surface, and the square support frame 10 is provided. A plate body standing up on the left side has a bolt fitting hole 28b through which an anchor bolt 27 penetrates at the center thereof, and a gear row 28c corresponding to the upper and lower gear trains 13 and 13a on the left side. Fixing nut (28e) having a nut fixed to the end of the anchor bolt (27) passing through the bolt fitting hole (28b) And front and rear side stoppers 28 and 28a which are tightly fixed by elasticity of the spring 28d fitted to the anchor bolts 27, are formed on the left side cross section and have a semicircular groove 22 extending inward to the left. 22) In the center side, nippers 21 having rod grooves 23 are formed, respectively, which are connected to the inner side by means of an electric current line 23c, and the front and rear connecting rods 23a and 23b are seated, respectively, and the front and rear tongs 21 The front and rear fixed clamps 20 and 20a in which the connecting terminal 29 and the connecting cable 29a of the secondary low voltage cable are respectively positioned in the semicircular groove 22; 상기 사각지지틀(10)의 상하면에 위치되는 ㄷ자형상의 프레임으로 우측상하부에는 상기 체결공(24)의 연장선상에 베어링(37,37a)이 삽입되는 상하측베어링삽입홈(31,31a)이 각각 형성되고, 상기 베어링(37,37a)의 중심에는 축볼트(38,38a)가 삽입되는 축공(37b,37c)이 형성되며, 상기 상하측베어링삽입홈(31,31a)을 기준으로 원형궤적을 갖는 상하측원형판체(32,32a)가 각각 형성되고, 상하측원형판체(32,32a) 외주연에는 일방향으로 각도를 갖고 기울게 돌출된 일방향기어열(33,33a)이 각각 형성되며, 우측선단면에는 우측으로 절연재질의 절연손잡이(34)가 고정설치되고, 좌측선단에는 상기 전후방측고정집게(20,20a)의 반원홈(22)과 원형궤적을 이루는 반원홈(35a)을 갖는 반원관(35) 중심측이 회동축(35b)에 의해 회동가능하게 축결합되며, 상기 상하측이동지지장공(11,11a)을 통해 상기 체결공(24) 주변에 용착고정되되 내부 탄발스프링(36c)의 의해 일방향기어열(33,33a)과 밀착되어 좌측선단부의 반원관(35)이 상기 전후방측고정집게(20,20a)의 반원홈(22)과 밀착되는 방향으로는 회동가능하고 그 역방향으로는 회동을 방지시키는 삽입고정돌부(36b)를 갖는 전후방측풀림방지구(36,36a)가 형성되는 전후방측회동집게(30,30a)를 구비하는 변압기의 저압케이블 분리용 집게형 접속장치.The upper and lower bearing insertion grooves 31 and 31a into which the bearings 37 and 37a are inserted on the extension line of the fastening hole 24 are formed in a U-shaped frame positioned on the upper and lower surfaces of the rectangular support frame 10. Each of the bearings 37 and 37a is formed at the center thereof, and shaft holes 37b and 37c into which the shaft bolts 38 and 38a are inserted are formed, and circular trajectories are formed based on the upper and lower bearing insertion grooves 31 and 31a. The upper and lower circular plate bodies 32 and 32a having the upper and lower circular plate bodies 32 and 32a are formed on the outer periphery of the upper and lower circular plate bodies 32 and 32a, respectively. A semicircle having a semicircular groove 35a forming a circular trajectory with a semicircular groove 22 of the front and rear fixed clamps 20 and 20a is fixedly installed on the front end face and having an insulating handle 34 of an insulating material on the right side. The center side of the pipe 35 is pivotally coupled by the rotation shaft 35b and passes through the upper and lower movable support holes 11 and 11a. The welding hole is fixed around the fastening hole 24, and is in close contact with the one-way gear trains 33 and 33a by the inner carbon spring 36c so that the semi-circular pipe 35 of the left end portion of the front and rear fixing clamps 20 and 20a is fixed. Front and rear side claws 30, in which the front and rear side loosening stops 36 and 36a are formed, which are rotatable in the direction in close contact with the semicircular grooves 22 and prevent the rotation in the opposite direction. Clamp-type connecting device for separating low voltage cables of a transformer having a 30a).
KR2020090004858U 2009-04-23 2009-04-23 Nipper type access device for separation low-voltagecable of transformer KR200445376Y1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100920337B1 (en) 2009-06-19 2009-10-07 주민정 Nipper device for separation low-voltage cable of transformer
KR100979942B1 (en) 2010-06-01 2010-09-03 (주)은암이엔시 Nipper type access device for separation low-voltage cable of transformer
KR101334078B1 (en) * 2013-01-08 2013-11-28 (주)호명기술단 Nipper device for separation low-voltage cable of transformer
CN110289537A (en) * 2019-03-20 2019-09-27 国网浙江省电力有限公司丽水供电公司 It is a kind of to strut equipment for what bunched cable T connect

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100785879B1 (en) 2006-07-19 2007-12-18 주식회사 평일 Nipper type access device for separation low-voltage cable of transformer
KR200442100Y1 (en) 2008-07-21 2008-10-10 건원이앤씨 주식회사 Nipper type access device for separation low-voltage cable of transformer
KR100882790B1 (en) 2008-11-10 2009-02-09 대한전기감리(주) Nipper type access device for separation low-voltage cable of transformer
KR100897782B1 (en) 2008-07-16 2009-05-15 (주)아성엔지니어링 Nipper type access device for separation low-voltage cable of transformer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100785879B1 (en) 2006-07-19 2007-12-18 주식회사 평일 Nipper type access device for separation low-voltage cable of transformer
KR100897782B1 (en) 2008-07-16 2009-05-15 (주)아성엔지니어링 Nipper type access device for separation low-voltage cable of transformer
KR200442100Y1 (en) 2008-07-21 2008-10-10 건원이앤씨 주식회사 Nipper type access device for separation low-voltage cable of transformer
KR100882790B1 (en) 2008-11-10 2009-02-09 대한전기감리(주) Nipper type access device for separation low-voltage cable of transformer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100920337B1 (en) 2009-06-19 2009-10-07 주민정 Nipper device for separation low-voltage cable of transformer
KR100979942B1 (en) 2010-06-01 2010-09-03 (주)은암이엔시 Nipper type access device for separation low-voltage cable of transformer
KR101334078B1 (en) * 2013-01-08 2013-11-28 (주)호명기술단 Nipper device for separation low-voltage cable of transformer
CN110289537A (en) * 2019-03-20 2019-09-27 国网浙江省电力有限公司丽水供电公司 It is a kind of to strut equipment for what bunched cable T connect

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