KR20100110552A - Electric transformer for high tension generation - Google Patents

Electric transformer for high tension generation Download PDF

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Publication number
KR20100110552A
KR20100110552A KR1020090028938A KR20090028938A KR20100110552A KR 20100110552 A KR20100110552 A KR 20100110552A KR 1020090028938 A KR1020090028938 A KR 1020090028938A KR 20090028938 A KR20090028938 A KR 20090028938A KR 20100110552 A KR20100110552 A KR 20100110552A
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South Korea
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high voltage
transformer
corona
bushing
main body
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KR1020090028938A
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Korean (ko)
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KR101029294B1 (en
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이순배
이주희
권태호
최명호
김래진
서삼문
이창근
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(주)테크윈시스템
한국전력공사
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Priority to KR1020090028938A priority Critical patent/KR101029294B1/en
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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
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • 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
    • H01F27/02—Casings

Abstract

PURPOSE: An electric transformer for generating a high voltage is provided to test the dielectric strength of a high voltage appliances and safety units by preventing the generation of corona discharge to 100kV. CONSTITUTION: The enclosure(1) and the upper cover(3) of a main body(2) are composed of glass fiber. The enclosure and the upper cover of the main body are combined with each other. A corona preventive cap(8) and a corona preventive hole(9) are installed to the charging exposure part of a bushing(4). The corona preventive cap is used for preventing the exposure of the charging exposure part with respect to air. The bushing and a ground terminal(5) are installed to the upper cover of the main body.

Description

소형 고전압 발생용 변압기{Electric transformer for high tension generation}Electric transformer for high tension generation

본 발명은 고전압 기기 및 안전장구 시험시 일반전원 전압(220V)을 절연내력에 필요한 고전압(100kV)을 발생시키는 소형 고전압 발생용 변압기에 관한 것으로, 더욱 상세하게는 코로나 방전없이 고전압 발생이 이루어짐에 따라 안전성 확보와 경제적 실용성이 향상된 소형 고전압 발생용 변압기에 관한 것이다.The present invention relates to a small high voltage generating transformer for generating a high voltage (100 kV) necessary for dielectric strength of the general power supply voltage (220V) during the test of high voltage equipment and safety equipment, and more particularly, as a high voltage is generated without corona discharge. The present invention relates to a small high voltage generating transformer with improved safety and economical practicality.

고전압 기기 및 활선 장구로서 안전장구는 초창기에는 좋은 성능을 발휘하지만 계속적인 사용과정에서 열화와 파손, 균열, 오염 등 여러 요인으로 인해 성능이 떨어져서 제품에 대한 신뢰성이 떨어졌다.As a high voltage equipment and live equipment, safety equipment performed well in the early stages, but the performance of the equipment was deteriorated due to various factors such as deterioration, breakage, cracking, and contamination during continuous use.

이에 대하여 고전압 기기 및 안전장구의 절연내력 시험장치는 특고압 범위에서 고전압 기기 및 안전장구의 절연파괴를 검출하여 불량상태의 고전압 기기 및 안전장구를 색출함으로써 항상 안전하고 신뢰성능을 유지할 수 있도록 시험하는 장치인데, 이러한 안전장구의 절연내력 시험장치 중 변압기는 특고압의 고전압을 발생시키어 고전압 기기와 안전장구에 공급하기 때문에 절연성이 매우 우수하면서 정전용량에 의한 누설을 최소화하여야 한다.On the other hand, the insulation strength test apparatus of high voltage equipment and safety equipment detects breakdown of high voltage equipment and safety equipment in the special high pressure range, and detects high voltage equipment and safety equipment in bad condition so that it is always tested to maintain safe and reliable performance. In the insulation strength test device of such safety equipment, the transformer generates high voltage of extra high voltage and supplies it to high voltage equipment and safety equipment.

한편, 종래 고전압 기기 및 안전장구의 절연내력 시험장치에 사용되는 고전압 발생용 변압기를 소형으로 제작하는 과정에서는 코로나 방전의 시술을 극복하지 못한 관계로 최대 50㎸ 정도의 변압기를 사용하고 있어서 75㎸ 이상의 전압에서 시험되어야 할 일부 기기와 안전장구의 시험이 곤란하였는바, 이는 변압기의 구조를 유지하는 주된 재료인 철제 케이스와 이 철제 케이스에 설치되는 부싱의 노출된 충전부의 영향을 받는 까닭으로 60㎸ 이상의 전압에서는 코로나 발생의 증가와 변압기의 구조가 현저하게 커짐에 따라 경제성과 안전성 확보에 단점을 지니고 있었다.On the other hand, in the process of manufacturing a high voltage generating transformer used in the dielectric strength test apparatus of the conventional high voltage equipment and safety equipment in a small size, the transformer of up to 50 kW is used because the procedure of corona discharge is not overcome. It was difficult to test some equipment and safety equipment to be tested at voltage, which was affected by the exposed live parts of the steel case and the bushings installed in the steel case, which are the main materials for maintaining the structure of the transformer. In terms of voltage, the increase in corona generation and the structure of the transformer have been significantly increased, which has disadvantages in securing economic efficiency and safety.

이에 본 발명은 상기와 같은 종래 문제점을 해결하기 위해 제안된 것으로, 고전압 기기 및 안전장구 시험시 100㎸의 고전압 발생 공급을 소형 변압기를 통하여 실현하여 변압기 제작의 경제성 확보와 각종 활선 안전장구의 실험을 신뢰성 있게 안전하게 지원할 수 있는 고전압 발생용 소형 변압기를 제공함에 그 목적이 있다.Accordingly, the present invention has been proposed to solve the above-mentioned problems. The high voltage generation supply of 100 kW is realized through a small transformer when testing high voltage equipment and safety equipment, thereby securing the economics of transformer manufacturing and experimenting with various live safety equipment. The objective is to provide a small transformer for high voltage generation that can be reliably and safely supported.

상기와 같은 목적을 달성하기 위한 본 발명은 외함을 갖춘 본체의 상부덮개에 부싱과 접지단자가 설치되어 시험하는 고전압 기기 및 안전장구에 고전압을 발생시켜 공급하는 소형 고전압 발생용 변압기에 있어서, 상기 본체의 외함과 상부덮개는 각각 유리섬유로 이루어진 플랜지형 외함으로 이루어지면서 합성수지용 볼트로 서로 체결되며, 상기 부싱의 충전 노출부에는 코로나 방지캡과 코로나 방지구가 설치되어 이루어진 구조로 되어 있다.The present invention for achieving the above object is a small high voltage generating transformer for supplying by generating a high voltage to the high voltage equipment and safety equipment to be installed and tested in the bushing and the ground terminal in the upper cover of the main body having an enclosure, the main body The outer cover and the upper cover are each made of a flange-shaped enclosure made of glass fiber and fastened to each other with synthetic resin bolts, and the filling exposed portion of the bushing has a structure in which a corona prevention cap and a corona prevention hole are installed.

상기와 같은 본 발명에 따른 소형 고전압 방지용 변압기는 비교적 높은 습도의 환경에서도 100㎸까지 코로나 방전이 거의 발생하지 않으면서 고전압 기기 및 안전용구들의 절연내력을 시험할 수 있을 뿐만 아니라, 소형으로 제작하여 제작단가를 낮추고 안전하게 사용할 수 있는 신뢰성을 갖추도록 되어 있다.The small high voltage protection transformer according to the present invention as described above can test the insulation strength of high voltage equipment and safety devices with little corona discharge even in a relatively high humidity environment, and can be manufactured in a small size. It is designed to reduce the unit cost and provide the reliability to use safely.

이하, 본 발명을 바람직한 실시도면을 참고하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the preferred embodiments.

도 1 내지 도 3은 본 발명에 따른 고전압 발생용 소형 변압기의 정면도와 평면도 및 측면도를 도시하되, 도 3은 코로나 방지캡의 분리를 나타낸 측면도이다.1 to 3 are a front view, a plan view and a side view of a small transformer for high voltage generation according to the present invention, Figure 3 is a side view showing the separation of the anti-corona cap.

본 발명의 설명에 앞서 본 발명의 사용용도를 도 4를 참고하여 설명하면, 제어장치(100)에 연결된 본 발명에 따른 고전압 발생용 변압기(101)는 시험용 수조(102a) 또는 시험 거치대(102b)에 장착되는 각종 고전압 기기 및 안전장구에 절연내력을 시험하기 위해 고전압을 발생시키어 공급하는 소형 변압기이다.Before explaining the use of the present invention with reference to Figure 4 prior to the description of the present invention, the high voltage generating transformer 101 according to the present invention connected to the control device 100 is a test tank (102a) or test cradle (102b) It is a small transformer that generates and supplies high voltage to test the dielectric strength of various high voltage equipment and safety equipment installed in the equipment.

본 발명은 도 1 내지 도 3에 도시된 바와 같이 외함(1)을 갖춘 본체(2)의 상부덮개(3)에 부싱(4)과 접지단자(5)가 설치되어 시험하는 고전압 기기 및 안전장구에 고전압을 공급하는 고전압 발생용 소형 변압기에 있어서, 상기 본체(2)의 외함(1)과 상부덮개(3)는 각각 유리섬유(glass fiber)로 이루어지면서 합성수지용 볼트(6)로 서로 체결되며, 상기 부싱(4)의 충전 노출부(7)에는 코로나 방지캡(8)과 코로나 방지구(9)가 설치되어 이루어진 구조로 되어 있다.The present invention is a high voltage device and safety equipment that is installed and tested in the bushing (4) and the ground terminal (5) is installed in the upper cover (3) of the main body (2) having an enclosure (1) as shown in Figs. In the high-voltage generating small transformer for supplying a high voltage to the, the enclosure (1) and the upper cover (3) of the main body (2) are each made of glass fiber and are fastened to each other with a synthetic resin bolt (6) In addition, the filling exposed portion 7 of the bushing 4 has a structure in which a corona prevention cap 8 and a corona prevention opening 9 are provided.

이 같은 본 발명의 변압기는 본체(2)의 외함(1)과 상부덮개(3)는 금속성 철제외함이 아니고 절연성 부도체인 유리섬유로 이루어지며, 이들을 합성수지용 볼트(6)로 서로 체결함에 따라 코로나 방전을 방지하고, 상기 부싱(4)의 충전 노출부(7)에 삽입되는 코로나 방지캡(8)은 이 충전 노출부(7)가 공기와의 노출을 최대로 방지하기 위해 합성수지 재질의 도너츠 형태로 되어 있으며, 이 코로나 방지캡(8) 상부쪽으로 결합되는 코로나 방지구(9)는 구형의 도체로 이루어져 있다.In the transformer of the present invention, the enclosure (1) and the upper cover (3) of the main body (2) are made of glass fiber, which is an insulating non-conductor, not a metallic iron enclosure, and the corona is fastened with each other with a synthetic resin bolt (6). The anti-corona cap 8 inserted into the filling exposed portion 7 of the bushing 4 prevents discharge and has a donut shape of synthetic resin material to prevent the filling exposed portion 7 from being exposed to air to the maximum. Corona prevention cap 9 is coupled to the upper portion of the corona prevention cap 8 is made of a spherical conductor.

일예로 본 발명에 따른 고전압 발생용 소형 변압기는 소형(높이 1.5m 이하, 가로세로 1m 이하)의 범위 내에서 제작이 가능하고, 본체(2)를 지지하는 바닥철판(10)은 이동이 자유롭게 바퀴용 캐스터(11)들이 장착되어 있다.As an example, the small transformer for high voltage generation according to the present invention may be manufactured in a range of small size (less than 1.5m in height and less than 1m in width and width), and the bottom plate 10 supporting the main body 2 may move freely. The casters 11 are mounted.

도 1은 본 발명에 따른 소형 고전압 발생용 변압기의 정면도,1 is a front view of a small high voltage generating transformer according to the present invention;

도 2는 도 1의 평면도,2 is a plan view of FIG.

도 3은 도 1의 측면도로서 코로나 방지캡의 분리도,3 is an exploded view of the corona prevention cap as a side view of FIG.

도 4는 본 발명의 사용상태를 보여주는 전체 개략 구성도이다.Figure 4 is a schematic overall configuration showing a state of use of the present invention.

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

1 : 외함, 2 : 본체,1: enclosure, 2: body,

3 : 상부덮개, 4 : 부싱,3: upper cover, 4: bushing,

5 : 접지단자, 6 : 합성수지용 볼트,5: grounding terminal, 6: synthetic resin bolt,

7 : 충전 노출부, 8 : 코로나 방지캡,7: charging exposed portion, 8: corona prevention cap,

9 : 코로나 방지구.9: corona protector.

Claims (2)

외함(1)을 갖춘 본체(2)의 상부덮개(3)에 부싱(4)과 접지단자(5)가 설치되어 시험하는 고전압 기기 및 안전장구에 고전압을 공급하는 소형 고전압 발생용 변압기에 있어서,In a small high voltage generating transformer for supplying a high voltage to a high voltage device and a safety equipment, which are provided with a bushing (4) and a grounding terminal (5) in an upper cover (3) of a main body (2) having an enclosure (1), 상기 본체(2)의 외함(1)과 상부덮개(3)는 각각 유리섬유(glass fiber)로 이루어지면서 합성수지용 볼트(6)로 서로 체결되며, 상기 부싱(4)의 충전 노출부(7)에는 코로나 방지캡(8)과 코로나 방지구(9)가 설치되어 이루어진 것을 특징으로 하는 소형 고전압 발생용 변압기.The enclosure 1 and the top cover 3 of the main body 2 are fastened to each other by bolts 6 for synthetic resin while being made of glass fiber, respectively, and the exposed portion 7 of the bushing 4. The small high voltage generating transformer, characterized in that the corona prevention cap (8) and the corona prevention port (9) is installed. 제 1항에 있어서,The method of claim 1, 상기 부싱(4)의 충전 노출부(7)에 삽입되는 코로나 방지캡(8)은 이 충전 노출부(7)가 공기와의 노출을 최대로 방지하기 위해 합성수지 재질의 도너츠 형태로 이루어져 부착되는 것을 특징으로 하는 소형 고전압 발생용 변압기.The corona prevention cap 8 inserted into the filling exposed portion 7 of the bushing 4 is attached to the filling exposed portion 7 in the form of a donut made of a synthetic resin material to prevent exposure to air to the maximum. Small high voltage transformer.
KR1020090028938A 2009-04-03 2009-04-03 Electric transformer for high tension generation KR101029294B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102867638A (en) * 2012-08-03 2013-01-09 武汉市华兴特种变压器制造有限公司 Armored shielding type high-voltage test transformer
CN104950232A (en) * 2015-06-17 2015-09-30 武汉市华兴特种变压器制造有限公司 Integrated high-voltage testing transformer for insulating oil withstand voltage tester

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0559813U (en) * 1992-01-13 1993-08-06 松下電工株式会社 High voltage pulse transformer connection structure
JPH09218565A (en) * 1996-02-09 1997-08-19 Ricoh Co Ltd High voltage power source device
KR200301584Y1 (en) 2002-10-21 2003-01-24 디피씨(주) Transformer of Inverter Type Microwave Oven
KR100796006B1 (en) 2006-08-10 2008-01-21 송홍준 Electric apparatus protect matrial using glass fiber chop and method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102867638A (en) * 2012-08-03 2013-01-09 武汉市华兴特种变压器制造有限公司 Armored shielding type high-voltage test transformer
CN104950232A (en) * 2015-06-17 2015-09-30 武汉市华兴特种变压器制造有限公司 Integrated high-voltage testing transformer for insulating oil withstand voltage tester

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