KR101434487B1 - An insulating cover for pressure-relief device for the transformer - Google Patents

An insulating cover for pressure-relief device for the transformer Download PDF

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KR101434487B1
KR101434487B1 KR1020130143025A KR20130143025A KR101434487B1 KR 101434487 B1 KR101434487 B1 KR 101434487B1 KR 1020130143025 A KR1020130143025 A KR 1020130143025A KR 20130143025 A KR20130143025 A KR 20130143025A KR 101434487 B1 KR101434487 B1 KR 101434487B1
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South Korea
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weight
insulating cover
cylindrical body
instantaneous pressure
transformer
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KR1020130143025A
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Korean (ko)
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이제순
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대영종합산기(주)
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/02Casings
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/0026Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0047Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
    • H05K5/0056Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB characterized by features for protecting electronic components against vibration and moisture, e.g. potting, holders for relatively large capacitors
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/0091Housing specially adapted for small components
    • H05K5/0095Housing specially adapted for small components hermetically-sealed
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/03Covers

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention relates to an insulating cover which covers the entire instantaneous pressure relief device of a pole transformer to prevent damage to the pole transformer due to the intrusion of rainfall into the pole transformer and, more particularly, to an insulating cover for instantaneous pressure relief device of a pole transformer which includes: upper and lower parts integrated cylindrical body which forms a single layer structure with narrower upper and wider lower parts; and a fall prevention ring which is connected to one side of the lower part of the cylindrical body. The cylindrical body is a hollow-shaped structure which has a sealed upper part and an opened lower part, includes half-cylindrical-shaped bolt accommodation units which are equidistantly protruding along the outer periphery of the lower cylindrical body to cover the entire instantaneous pressure relief device inside. The fall prevention ring is integrally formed by a connecting line which is connected to one side of the lower part of the cylindrical body and a circular ring formed at the end of the connecting line to prevent fall of the insulating cover which is opened by the pressure of gas instantaneously jetted out from the instantaneous pressure relief device to the ground.

Description

주상변압기 순간압력저감장치용 절연커버{AN INSULATING COVER FOR PRESSURE-RELIEF DEVICE FOR THE TRANSFORMER}(AN INSULATING COVER FOR PRESSURE-RELIEF DEVICE FOR THE TRANSFORMER)

본 발명은 주상변압기 내부로 빗물이 침투되어 주상변압기가 소손되는 것을 방지하기 위하여 주상변압기의 순간압력저감장치 일체를 덮는 절연커버에 관한 것으로서, 자외선 또는 기후의 영향으로 인한 재질의 변형을 최소화하고, 또한 주상변압기의 고장으로 인해 분출되는 고온의 절연유와 접촉하더라도 발화되지 않는 난연 특성이 있으며 순각압력저감장치의 동작시 커버가 열림으로써 순간압력저감장치의 동작을 표정하는 특성을 갖는다.
The present invention relates to an insulation cover which covers an integral part of an instantaneous pressure reducing device of a pillar transformer in order to prevent rainwater from penetrating into a pillar transformer and thereby to prevent the pillar transformer from being burned and minimizes deformation of a material due to ultraviolet rays or weather, Also, it has a flame retardant characteristic that does not ignite even when it comes into contact with high-temperature insulating oil sprayed due to the failure of the punch transformer, and has a characteristic of expressing the operation of the instantaneous pressure reducing apparatus by opening the cover in operation of the pure-

주상변압기 내부의 고장으로 발생하는 갑작스런 고압력을 순간적으로 저감시켜주는 순간압력저감장치는 구조와 설치상 빗물의 침투여지가 있다는 주장이 잇따르고 실제 시공시 부주의로 3개의 볼트를 조이는 과정에서 균등조임을 하지않아 압력저감장치가 하부의 변압기 핸드홀구멍에 수평으로 설치가 되지않는 결과로 저감장치가 튀어오른 부분 사이로 빗물이 침투되어 그 빗물이 변압기 내부로 유입되어 변압기가 소손되는 사례가 있었는바, 도 1에 도시된 바와 같이, 저감구 조임부와 베이스의 밑부분으로 있을지 모를 빗물의 침투를 예방하여 돌연한 변압기의 소손사고를 방지하여야 한다.The momentary pressure reducing device that instantaneously reduces the sudden high pressure generated by the failure inside the pillar transformer is followed by a claim that there is room for infiltration of rainwater on the structure and installation, and it is ensured that the three bolts are tightened evenly during the actual construction. As a result of the fact that the pressure reducing device is not installed horizontally in the transformer hand hole of the lower part, the rainwater infiltrates into the protruding parts of the abatement device, and the rainwater is introduced into the transformer and the transformer is damaged. , It is necessary to prevent the infiltration of rainwater that may be present at the lower part of the reduction structure and the base so as to prevent burning of the abrupt transformer.

두 군데의 빗물침투 개연성을 아예 없애는 동시에 커버는 절연물질을 사용함으로써 저감장치와 특고압 부싱 사이의 섬락 거리를 증대시킴으로써 여름철의 낙뢰로 인한 부싱 및 저감장치의 파괴사고를 방지하는 효과도 기할 수 있다.By eliminating the possibility of penetration of rainwater in two places and by using insulating material, it is possible to prevent destruction of bushing and abatement device due to lightning in summer by increasing flash distance between abatement device and extra high pressure bushing .

순간압력저감장치 동작 시 표정장치로 순간압력저감장치 뚜껑 내에 설치한 리본의 부 동작 내지 높은 열에 의하여 녹아 버림으로써 동작 여부를 외부에서 확인 못 하는 경우가 있어 본 저감장치 커버를 추가하여 동작 시 커버의 자동 열림으로 외부에서 저감장치 동작 여부를 쉽게 확인할 수 있도록 하기 위하여 본 커버를 발명하게 됨
Instantaneous pressure relief device is operated by facial expression device Instantaneous pressure relief device It is impossible to check whether the operation is performed from the outside because the ribbon installed in the lid is melted by the action of high or low heat of the ribbon. The automatic cover opens the cover to make it easy to check whether the abatement device is operating from the outside.

대한민국 등록특허 10-0898736(2009.05.14)호의 '무정전상태에서의 지상변압기용 순간압력저감장치 및집유포 설치방법'; 대한민국 등록실용신안 20-0226399(2001.03.27)호의 '지상변압기용 순간 압력저감장치'; 대한민국 등록특허 10-0787472(2007.12.13)호의 '지상변압기에서의 순간압력저감장치 설치방법'
Korean Patent No. 10-0898736 (2009.05.14) 'Instantaneous Pressure Reduction Device for Ground Transformer in Uninterrupted State and Installation Method of Drainage System';'Instantaneous Pressure Reduction Device for Ground Transformer' in Utility Model No. 20-0226399 (Mar. Korean Patent No. 10-0787472 (Dec. 13, 2007) 'Installation Method of Instantaneous Pressure Reduction Device in Ground Transformer'

대한민국 등록특허 10-0898736(2009.05.14)Korean Patent No. 10-0898736 (2009.05.14) 대한민국 등록실용신안 20-0226399(2001.03.27)Korea Registered Utility Model 20-0226399 (Mar. 23, 2001) 대한민국 등록특허 10-0787472(2007.12.13)Korean Patent No. 10-0787472 (December 13, 2007)

상기의 문제를 해결하기 위하여, 본 발명은 주상변압기 내부로 빗물이 침투하는 것을 차단하고자 하는 주기능을 효과적으로 수행할 수 있도록 하기 위하여, 물리·화학적 특성을 강화시킨 주상변압기 순간압력저감장치용 절연커버를 제공하고자 하는 것을 발명의 목적으로 한다.
In order to solve the above problems, the present invention provides a pneumatic transformer for an instantaneous pressure relief device having an enhanced physical and chemical property, in order to effectively perform a main function of preventing penetration of rainwater into the pillar transformer, It is an object of the present invention to provide a method of manufacturing a semiconductor device.

상기의 목적을 달성하기 위하여,In order to achieve the above object,

본 발명은 주상변압기 내부로 빗물이 침투되어 주상변압기가 소손되는 것을 방지하기 위해 주상변압기의 순간압력저감장치 일체를 덮는 절연커버로서,The present invention relates to an insulation cover for covering an integral part of an instantaneous pressure reducing device of a pillar transformer to prevent rainwater from penetrating into the inside of the pillar transformer,

상기 절연커버는 상협하광(上狹下廣)의 단층구조를 이루는 상·하 일체의 원통형 몸체와,Wherein the insulating cover comprises an upper and a lower cylindrical body having a single-layered structure of upper and lower light,

상기 원통형 몸체의 하부 일측에 연결 형성되는 낙하방지 고리를 포함하여 이루어지는 것으로서,And a fall preventing ring connected to one side of the lower part of the cylindrical body,

상기 원통형 몸체는 상부가 밀폐되고, 하부가 개방된 중공형 구조를 이루고, 하부 원통형 몸체의 외주연을 따라 등간격을 두어 돌출형성된 반원기둥 형상의 볼트수용부를 포함하여 상기 순간압력저감장치 전체를 내부에 수용하여 덮어주는 것이며,Wherein the cylindrical body includes a bolt accommodating portion having a semi-cylindrical shape, the upper portion of which is hermetically closed, the lower portion of which is opened, and which is protruded at regular intervals along the outer circumference of the lower cylindrical body, And,

상기 낙하방지 고리는 순간압력저감장치에서 순간적으로 분출되는 가스의 압력에 의해 열리는 절연커버가 지상으로 낙하하는 것을 방지하기 위하여, 원통형 몸체의 하부 일측에 연결 형성되는 연결선과, 상기 연결선(201)의 말단에 형성되는 원형 고리가 일체로 이루어지는 것임을 특징으로 하는 주상변압기 순간압력저감장치용 절연커버를 제공한다.
The drop prevention ring may include a connection line connected to one side of the lower portion of the cylindrical body to prevent the insulation cover opened by the pressure of the gas instantaneously emitted from the instantaneous pressure reduction device from dropping to the ground, And an annular ring formed at an end of the insulating cover is integrally formed.

본 발명에 따른 절연커버는 순간압력저감장치의 뚜껑과 베이스를 한꺼번에 덮을 수 있도록 내부공간을 구비하고 있어 효과적으로 주상변압기 내부로 빗물이 침투되는 것을 차단할 수 있으며, 또한 절연커버의 내측 상면과 상기 순간압력저감장치 뚜껑 사이에 소정의 간격을 두도록 형성되어 있어, 저감장치 설치 형태의 변형에 따른 높이 변화에 적절하게 대응할 수 있다는 장점을 갖는다.The insulating cover according to the present invention has an internal space to cover the lid and the base of the instantaneous pressure reducing device at once, thereby effectively preventing penetration of rainwater into the pillar transformer, And is provided with a predetermined gap between the lid of the ablation device, so that it is possible to appropriately cope with the change in height due to the deformation of the abatement device installation form.

또한, 본 발명에 따른 절연커버는 화학적·물리적 특성을 강화시킴으로써, 외부환경 또는 주상변압기에서 분출되는 고온의 절연유에 의한 제품 손실을 최소화할 수 있기 때문에 제품신뢰도를 높일 수 있으며, 순간압력저감장치의 동작시 본 발명에 다른 절연커버가 자동으로 열림으로써 외부에서 순간압력저감장치의 동작여부를 쉽게 알 수 있어 변압기가 소손되었다는 판단을 속히 내릴 수 있도록 하는 장점이 있다.
Further, since the insulation cover according to the present invention enhances the chemical and physical characteristics, the product loss due to the high-temperature insulating oil ejected from the external environment or the punching transformer can be minimized, so that the reliability of the product can be increased. The operation of the instantaneous pressure reducing device can be easily recognized from the outside by automatically opening the insulating cover according to the present invention at the time of operation so that it is possible to promptly determine that the transformer is burned down.

도 1은 주상변압기 순간압력저감장치를 보인 사진.
도 2는 주상변압기 순간압력저감장치를 내부에 수용한 상태의 본 발명에 따른 절연커버를 보인 측단면도.
도 3은 본 발명에 따른 절연커버를 상부 측방향에서 바라본 사시도.
도 4는 본 발명에 따른 절연커버를 하부 측방향에서 바라본 사시도.
도 5는 본 발명에 따른 절연커버의 상면도.
1 is a photograph showing a pillar transformer instantaneous pressure reducing device.
FIG. 2 is a side cross-sectional view showing an insulation cover according to the present invention in a state where the pole-pole transformer instantaneous pressure reducing device is housed therein. FIG.
FIG. 3 is a perspective view of the insulating cover according to the present invention, viewed from the upper side. FIG.
4 is a perspective view of the insulating cover according to the present invention viewed from the lower side.
5 is a top view of an insulating cover according to the present invention.

이하, 상기의 기술 구성에 대해 도면과 함께 구체적으로 살펴보고자 한다.
Hereinafter, the technical composition of the present invention will be described in detail with reference to the drawings.

본 발명은 도 1에서 사진을 통해 확인되는 주상변압기 순간압력저감장치에 빗물 등 수분이 침투되어 주상변압기가 소손되는 것을 방지하기 위해, 도 2에 도시된 바와 같이, 상기 순간압력저감장치를 내부에 수용하도록 고안된 절연커버에 관한 것이다.
2, in order to prevent the pillar transformer from being damaged due to penetration of moisture such as rainwater into the pillar transformer instantaneous pressure reducing device, which is confirmed through photographs in FIG. 1, the instantaneous pressure reducing device To an insulating cover designed to receive.

도 3 내지 5에 도시된 바와 같이,As shown in Figures 3 to 5,

본 발명에 따른 절연커버(1)는 상협하광(上狹下廣)의 단층구조를 이루는 상·하 일체의 원통형 몸체(10)와,An insulating cover (1) according to the present invention comprises a cylindrical body (10) having a single layer structure of upper and lower light, an upper and a lower body,

상기 원통형 몸체(10)의 하부 일측에 연결 형성되는 낙하방지 고리(20)를 포함하여 이루어지는 것으로서,(20) connected to one side of the lower part of the cylindrical body (10)

상기 원통형 몸체(10)는 상부가 밀폐되고, 하부가 개방된 중공형 구조를 이루고, 하부 원통형 몸체의 외주연을 따라 등간격을 두어 돌출형성된 반원기둥 형상의 볼트수용부(101)를 포함하여 상기 순간압력저감장치 전체를 내부에 수용하여 덮어주는 것이며,The cylindrical body 10 includes a semi-cylindrical bolt accommodating portion 101 formed in a hollow structure with an upper portion closed and an open lower portion and protruding at an equal interval along the outer circumference of the lower cylindrical body, The entire momentary pressure reducing device is housed and covered therein,

상기 낙하방지 고리(20)는 순간압력저감장치에서 순간적으로 분출되는 가스의 압력에 의해 열리는 절연커버가 지상으로 낙하하는 것을 방지하기 위하여, 원통형 몸체(10)의 하부 일측에 연결 형성되는 연결선(201)과, 상기 연결선(201)의 말단에 형성되는 원형 고리(202)가 일체로 이루어지는 것임을 특징으로 한다.
In order to prevent the insulation cover, which is opened by the pressure of the gas instantaneously ejected from the instantaneous pressure reducing apparatus, from dropping down to the ground, the drop prevention ring 20 has a connection line 201 connected to one side of the lower portion of the cylindrical body 10 And a circular ring 202 formed at the distal end of the connecting line 201 are integrally formed.

상기 원통형 몸체(10)는 순간압력저감장치의 뚜껑과 베이스 일체를 덮을 수 있도록 중공의 내부공간이 있기 때문에, 상기 순간압력저감장치를 완전히 덮어주어 빗물이 주상변압기 내부로 침투하는 것을 손쉽게 차단할 수 있다.Since the cylindrical body 10 has a hollow inner space to cover the lid of the instantaneous pressure reducing device and the integral body of the base, it is possible to completely cover the instantaneous pressure reducing device and easily prevent the penetration of rainwater into the pillar transformer .

또한 상기 저감장치수용부(10)의 내측 상면과 상기 순간압력저감장치 뚜껑 사이에는 간격을 두어 공간을 형성함으로써, 순간압력저감장치 설치 형태에 변형이 있더라도 효과적으로 대응할 수 있다.
Further, a gap is formed between the inner upper surface of the abatement device accommodating portion 10 and the lid of the instantaneous pressure reducing device, thereby effectively coping with the deformation of the instantaneous pressure reducing device.

그리고, 상기 낙하방지 고리(20)는 원형고리(202)를 순간압력저감장치의 핸드홀 볼트에 끼움으로써 순간압력저감장치의 동작과정에서 순간적으로 분출되는 가스의 강한 압력에 의하더라도 절연커버(1)가 순간압력저감장치로부터 벗겨질 뿐 지상으로 낙하하는 것을 방지하여 준다.
The drop prevention ring 20 is formed by fitting the circular ring 202 to the hand hole bolt of the instantaneous pressure reducing device so that even when the strong pressure of the gas instantaneously blown out during the operation of the instantaneous pressure reducing device is applied, ) Is peeled off from the instantaneous pressure reducing apparatus and prevented from falling down to the ground.

본 발명에 따른 절연커버(1)는 주상변압기 순간압력저감장치에 사용하는 것이라는 특성상 야외의 외부환경에 노출되어 사용되며, 이로 인해 자외선 및 기후의 영향을 받아 재질이 빨리 노화되는 문제가 발생하게 된다.
The insulating cover 1 according to the present invention is used in an external environment of the outdoor environment due to the fact that it is used in a pole-to-pole transformer instantaneous pressure reducing apparatus, and thus the material is affected by ultraviolet rays and weather, .

일반적으로 폴리머(Polymer)는 매우 안정한 물질이나 열, 빛 산소 등의 물리 화학적인 외부영향으로 분해(Degradation) 되어 원래의 성질을 잃게 된다. 특히 열이나 빛에 의해 비롯되는 산화에 의한 분해는 불가피하게 되며 고유의 화학적 성질을 결국, 품질 저하를 초래한다.In general, polymers are degraded by external chemical and physical influences such as heat, light, and oxygen, and they lose their original properties. Particularly, decomposition by oxidation caused by heat or light becomes inevitable, and inherent chemical properties result in quality deterioration.

산화분해 과정은 외부에 장기간 노출되거나 고온을 필요로 하는 합성, 혼합 등의 공정 중에 빛이나 열에너지를 받아 주로 polymer내의 탄소-수소 결합이 활성화되어 각각의 라디칼(radical)을 형성함으로써 개시되며, 이후 라디칼 반응 메카니즘에 따라 연속적으로 진행된다. 대부분의 폴리머(Polymer)들은 200~400nm의 파장 범위에서 최대 흡수를 갖는다.The oxidative decomposition process is initiated by light or heat energy during the synthesis, mixing, etc. processes requiring long exposure to the outside or high temperature, and carbon-hydrogen bonds in the polymer are activated mainly to form respective radicals, and radicals The reaction proceeds continuously according to the reaction mechanism. Most polymers have maximum absorption in the wavelength range of 200-400 nm.

PE(Polyethylene), PP(Polyprophylene) 및 PVC는 일반적으로 200~250nm 범위에서 약한 흡수를 나타내므로 자외선에 노출되었을 때 분해가 진행된다.Polyethylene (PE), polypropylene (PP) and PVC generally exhibit weak absorption in the range of 200 to 250 nm, so decomposition proceeds when exposed to ultraviolet light.

파장영역이 290~400nm의 자외선 에너지는 고분자의 화학결합을 파괴하여, 연쇄절단, 가교결합 등을 발생시키는 자유라디칼을 형성하고 궁극적으로 변색(Yellowing), 제품표면의 갈라짐(Cracking), 기계적 물성저하 등을 유발시킨다. 따라서 옥외에서 사용하는 본 발명에 따른 절연커버에 자외선 안정제를 첨가함으로써 이와 같은 문제를 해결할 수 있다.
Ultraviolet energy in the wavelength range of 290 to 400 nm destroys the chemical bonds of the polymer and forms free radicals that cause chain cleavage and crosslinking, and ultimately causes discoloration (yellowing), cracking of the product surface and deterioration of mechanical properties . Therefore, this problem can be solved by adding an ultraviolet stabilizer to the insulating cover according to the present invention used outdoors.

또한, 상기 절연커버(1)는 주상변압기 고장시에 분출되는 고온의 절연유에 의해 발화될 수 있기 때문에, 이와 같은 문제를 해결하기 위하여 난연특성이 있어야 한다.In addition, since the insulating cover 1 can be ignited by the high-temperature insulating oil sprayed when the punching transformer fails, a flame-retarding property is required to solve such a problem.

불이 발생하기 위해서는 연료(fuel), 산소 및 에너지가 필수적으로 필요하게 된다. 에너지는 발광, 스파크 및 불꽃의 형태로 연료로 전달되며 이때 인화 원의 유지 및 밀도, 즉 가연성 물질과 에너지원 간의 거리가 불을 유지하는 중요한 인자로 작용하게 된다. 공기(산소)는 실제 연소 과정에서 필수적으로 필요하며 이는 연료와의 화학 반응에 관여하게 된다.Fuel, oxygen and energy are indispensable to fire. Energy is transferred to the fuel in the form of light, spark and flame, where the maintenance and density of the source of combustion, that is, the distance between the combustible material and the energy source, is an important factor to maintain fire. Air (oxygen) is indispensable in the actual combustion process, which is involved in the chemical reaction with the fuel.

플라스틱은 대부분 연소하기 쉬운 성질이 있어서 이와 같은 성질을 물리적 및 화학적으로 개선하여 잘 타지 못하도록 난연제를 첨가하게 된다.Most plastics have properties that are easy to burn, and these properties are physically and chemically improved to add flame retardants to prevent burning.

플라스틱에 난연성을 부여하기 위한 방법으로는 냉각방법, 방어막 형성, 희석 방법 및 활성 라디칼 흡수 방법이 있다.Methods for imparting flame retardancy to plastics include cooling methods, membrane formation, dilution methods, and active radical absorption methods.

상기 냉각방법의 경우, 연소시 발열단계에서 발생하는 열을 첨가제에 의해 소비시켜 연소를 억제하는 것으로서, 이에 사용되는 것으로는 Al(OH)3와 Mg(OH)2 있다. 이 물질들은 연소과정에서 포함되어 있는 수증기를 방출하여 연소시 발생하는 열을 흡수함으로써 난연 효과를 얻게 되며, 통상적으로 수지 내에 다량으로 첨가하게 사용하게 된다.In the case of the cooling method, the heat generated in the heating step during the combustion is consumed by the additive to suppress the combustion, and the use of Al (OH) 3 and Mg (OH) 2 have. These materials emit water vapor contained in the combustion process and absorb heat generated during combustion, thereby obtaining a flame retardant effect, which is usually used in a large amount in a resin.

다음으로, 방어막 형성은 가연 특성을 갖는 고분자를 공기 중의 산소와 결합할 수 없도록 연소시 고체나 기체로 응축하여 방어막과 같은 차(char)를 형성하는 방법으로서, 이에 사용되는 대표적인 화합물에는 인계 난연제가 있다.Next, the formation of a shielding film is a method of forming a char such as a shielding film by condensing a solid polymer or a gas during combustion so that the polymer having a tentative property can not be combined with oxygen in the air, and a representative compound used therefor is a phosphorus- have.

그리고 희석방법으로는 연소시 불연성 중질가스를 생성시켜 연소를 진행시키는 가스들끼리의 반응을 억제함으로써 소화작용을 하는 것이며, 마지막으로 라디칼 흡수방법은 활성 라디칼을 흡수하는 것으로 연소에 첨가하는 H·나 OH·같은 라디칼을 난연제가 흡수해서 연속반응을 억제하는 방법이다.
And dilution method is to digestion by suppressing the reaction between the gases and to advance the combustion by generating non-flammable heavy gas during combustion, and finally, the radical absorption method H · or added to the combustion as to absorb the active radical to absorb the flame retardant, such as OH · radical is a method for inhibiting the continuous reaction.

본 발명에 따른 순간압력저감장치용 절연커버(1)는 상기한 바와 같이, 야외에서 사용하더라도 변색(Yellowing), 제품표면의 갈라짐(Cracking), 기계적 물성저하 등의 문제를 일으키지 않도록 자외선 흡수기능을 부여하고,As described above, the insulating cover 1 for an instantaneous pressure reducing apparatus according to the present invention has an ultraviolet absorbing function so as not to cause problems such as discoloration (Yellowing), cracking of the surface of the product and deterioration of mechanical properties And,

또한 주상변압기 고장시에 분출되는 고온의 절연유에 의해 발화되는 것을 방지하기 위하여 난연특성을 부여한다.
In addition, a flame retardant property is imparted to prevent ignition by high-temperature insulating oil sprayed when the pillar transformer fails.

즉, 이와 같은 특성을 부여하기 위하여,That is, in order to impart such a characteristic,

본 발명에 따른 순간압력저감장치용 절연커버(1)는 170~180℃의 내부온도를 유지하는 혼련기(Internal mixer)에, The insulating cover (1) for an instantaneous pressure reducing apparatus according to the present invention comprises a kneader (internal mixer) maintaining an internal temperature of 170 to 180 ° C,

폴리에틸렌 100중량부에 대하여,With respect to 100 parts by weight of polyethylene,

EVA(ethylene vinylacetate copolymer) 또는 CPE(chlorinated polyethylene) 중 선택되는 보조수지 20~40중량부와,20 to 40 parts by weight of an auxiliary resin selected from ethylene vinylacetate copolymer (EVA) or chlorinated polyethylene (CPE)

자외선 흡수제 0.1~1중량부와,0.1 to 1 part by weight of an ultraviolet absorber,

난연제 5~10중량부와,5 to 10 parts by weight of a flame retardant,

탈크(Talc) 5~15중량부와,5 to 15 parts by weight of talc,

점토(Clay) 10~60중량부와,10 to 60 parts by weight of clay,

카본블랙(Carbon Black) 1~5중량부를 첨가하여 15~30분 동안 20~30rpm의 회전속도로 믹싱(mixing)하여 난연 컴파운드를 제조한 후,1 to 5 parts by weight of carbon black is added and mixed at a rotation speed of 20 to 30 rpm for 15 to 30 minutes to prepare a flame retardant compound,

150~155℃의 온도를 유지하는 난연 컴파운드를 이용하여 성형하는 것을 사용한다.
Molding using a flame retardant compound that maintains a temperature of 150 to 155 ° C is used.

보다 구체적으로는More specifically,

폴리에틸렌 100중량부에 대하여,With respect to 100 parts by weight of polyethylene,

EVA(ethylene vinylacetate copolymer)의 보조수지 20중량부와,20 parts by weight of an auxiliary resin of ethylene vinylacetate copolymer (EVA)

하이드록시 벤조페논(Hydroxy Benzophenone)의 자외선 흡수제 0.5중량부와,0.5 part by weight of an ultraviolet absorber of Hydroxy Benzophenone,

수산화마그네슘(magnesium hydroxide(Mg(OH)2))의 난연제 5중량부와,5 parts by weight of a flame retardant of magnesium hydroxide (Mg (OH) 2 )

탈크(Talc) 10중량부와,10 parts by weight of Talc,

점토(Clay) 60중량부와,60 parts by weight of clay (Clay)

카본블랙(Carbon Black) 3중량부를 첨가하여 조성된 난연 컴파운드를 이용하여 절연커버(1)를 제조한다.
And 3 parts by weight of carbon black (Carbon Black) were added to prepare an insulating cover 1 using a flame retardant compound.

상기 폴리에틸렌은 압력저감장치용 절연커버(1)의 주재로서, 타 성분과의 배합비를 정함에 있어 폴리에틸렌 100중량부를 기준으로 하여 다른 성분들의 함량비율을 정한다.
The polyethylene is a main component of the insulating cover (1) for a pressure reducing device, and the content ratio of the other components is determined based on 100 parts by weight of polyethylene in determining the blending ratio with other components.

상기 EVA(ethylene vinylacetate copolymer)는 -(-CH2-CH2-)m-(CH2-CH(OCOCH3)n- 의 화학구조를 갖는 것으로서, 인장강도, 인열강도 및 신장율 등 기계적 물성이 우수하고, 산과 알카리에 대한 내화학성 등 물성이 뛰어난 재로이다.The EVA (ethylene vinylacetate copolymer) has a chemical structure of - (- CH 2 --CH 2 -) m - (CH 2 --CH (OCOCH 3 ) n-) and has mechanical properties such as tensile strength, tear strength and elongation It is excellent and has good physical properties such as chemical resistance to acid and alkali.

이와 같은 물성은 중합도와 초산비닐의 함유량에 의해 결정되는 것으로서, 분자량이 클수록 강인성과 가소성, 내충격성이 향상되나, 성형성이나 표면 광택은 저하된다. 한편, 초산비닐 함량이 증가하면 밀도와 탄성, 유연성이 다른 고분자나 가소제와의 상용성이 향상하여 연화온도는 저하된다. 반면에 초산비닐 함량이 적은 EVA는 통상 PE와 같은 가공이 되며, 인쇄 적성도 양호하므로 필름이나 라미네이트, 발포 제품, 중포장용 부대 등으로 이용된다.Such physical properties are determined by the degree of polymerization and the content of vinyl acetate. The larger the molecular weight, the toughness, plasticity and impact resistance are improved, but the moldability and surface gloss are lowered. On the other hand, when the content of vinyl acetate is increased, compatibility with polymers and plasticizers having different densities, elasticity and flexibility is improved, and the softening temperature is lowered. On the other hand, EVA having a low content of vinyl acetate is usually processed in the same manner as PE, and is used for films, laminates, foaming products, heavy bags, and the like because of good printing suitability.

초산비닐이 10~20% 정도의 것은 PVC나 기타수지와 블렌딩(blending)하여 저온으로 가공하여 유연성을 향상시키는데 이용된다. 또 초산비닐을 25~30%를 함유한 것은 왁스에 첨가하여 취약성과 접착성 등을 개량하는데 효과적이다. 초산비닐 함량이 많은 공중합체는 경시안정성이나 내후성이 뛰어난 접착제로서 특히 핫멜트형 접착제의 주원료가 된다.Vinyl acetate of about 10 to 20% is used to improve flexibility by blending with PVC or other resins and processing at low temperatures. Also, it is effective to add 25 to 30% of vinyl acetate to wax to improve the vulnerability and adhesion. The copolymer having a high content of vinyl acetate has excellent stability over time and weatherability, and is a main raw material for a hot-melt type adhesive.

EVA는 사출성형에 있어 PVC의 온도변화에 약한 결점을 막는데 좋은 특성을 나타낸다. 또 EVA를 발포체로 했을 때 미세한 기포체가 되며 가볍고 마모성도 좋고, 초산비닐의 함유량을 바꾸어 경질에서 연질제품까지의 수지를 만든다.
EVA exhibits good properties to prevent weak defects in temperature change of PVC in injection molding. When EVA is used as a foam, it becomes a fine bubble, it is light and good in abrasion, and changes the content of vinyl acetate to make a resin from hard to soft products.

그리고 상기 염화처리된 폴리에틸렌(Chlorinated polyethylene(CPE))은 염소함량 36~42%인 것으로서, 난연성, 뛰어난 열노화 및 오존 저항성을 가지며 다른 탄성체와의 결합을 통해 비용절감과 재료의 뛰어난 물성을 제공해준다.
The above chlorinated polyethylene (CPE) has a chlorine content of 36 to 42%. It has flame retardancy, excellent heat aging and ozone resistance, and is combined with other elastomers to provide cost reduction and excellent material properties .

상기 자외선 흡수제는 하이드록시 벤조페논(Hydroxy Benzophenone) 또는 벤조트리아졸(Benzotriazole) 중에서 선택되는 것으로서, 자외선 에너지를 선택적으로 흡수하여 적외선에너지 형태로 전환하여 방출하는 기능을 갖는다.The ultraviolet absorber is selected from hydroxybenzophenone or benzotriazole. The ultraviolet absorber has a function of selectively absorbing ultraviolet energy, converting it into an infrared energy form, and releasing it.

즉, 상기 자외선 흡수제는 파장이 250㎛~400㎛의 빛을 흡수한 뒤, 이 UV에너지를 열에너지로 전환하는 역할을 한다.
That is, the ultraviolet absorber absorbs light having a wavelength of 250 mu m to 400 mu m, and then converts the UV energy into heat energy.

상기 난연제는 폴리인산암모늄(ammonium polyphosphate), 폴리인산 멜라민(melamine-pyrophosphate) 또는 적인(red phosphorus)으로부터 선택되는 인/질소계 난연제; 또는 수산화알루미늄(aluminium trihydrate(Al(OH)3)), 수산화마그네슘(magnesium hydroxide(Mg(OH)2))에서 선택되는 무기계 난연제로부터 선택된 것을 사용할 수도 있으나, 본 발명에서는 난연특성을 강화시키기 위하여, 다음에 제시되는 난연제를 사용한다.Wherein the flame retardant is a phosphorus / nitrogen flame retardant selected from ammonium polyphosphate, melamine-pyrophosphate or red phosphorus; Or an inorganic flame retardant selected from aluminum trihydrate (Al (OH) 3 ) and magnesium hydroxide (Mg (OH) 2 ) may be used. In the present invention, The following flame retardants are used.

즉, 본 발명에서 사용하는 난연제로는 수산화마그네슘과 멜라민 모노머를 물(water)에 분산시켜 수산화마그네슘의 중량비가 25wt%가 되도록 혼합용액을 제조한 후,That is, as the flame retardant used in the present invention, a mixed solution is prepared by dispersing magnesium hydroxide and melamine monomer in water so that the weight ratio of magnesium hydroxide is 25 wt%

상기 혼합용액에 인산을 첨가하되, 혼합용액 전체중량 대비 1.0~2.0wt%의 비율로 첨가하여 교반한 후,Phosphoric acid is added to the mixed solution at a ratio of 1.0 to 2.0 wt% based on the total weight of the mixed solution, followed by stirring,

온도를 100℃까지 상승시킨 상태에서 6~8시간 동안 교반하여 멜라민 입자를 수산화마그네슘과 반응시킨 후,The mixture was stirred for 6 to 8 hours while the temperature was raised to 100 ° C to react the melamine particles with magnesium hydroxide,

얼음물에서 20~40분 동안 급냉시킨 다음,After quenching in ice water for 20-40 minutes,

필터처리한 후 건조시켜 제조된 수산화마그네슘과 멜라민의 복합입자를 사용한다.
Composite particles of magnesium hydroxide and melamine produced by filtering and drying are used.

그리고 상기 난연제를 구성하는 수산화마그네슘은 황산마그네슘 용액에 동일 몰수의 수산화나트륨 용액을 투입한 후, 상온에서 교반하여 용액을 고르게 분산시켜 생성된 흰색의 겔 용액을 마이크로파 장치에 넣은 다음,The magnesium hydroxide constituting the flame retardant is prepared by adding the same molar amount of sodium hydroxide solution to the magnesium sulfate solution, stirring the solution at room temperature to disperse the solution evenly, adding the resulting white gel solution into a microwave apparatus,

마이크로파 조사 전력 100~500W, 합성온도 60~100℃, 반응시간 5~15분의 조건에서 반응시키고,The reaction is carried out under conditions of a microwave irradiation power of 100 to 500 W, a synthesis temperature of 60 to 100 DEG C and a reaction time of 5 to 15 minutes,

반응을 마친 후 생성된 침전물을 상온에서 냉각한 후, 냉각시킨 침전물을 증류수로 2~5회 세척한 후 여과하고,After the completion of the reaction, the resulting precipitate was cooled at room temperature, and the cooled precipitate was washed 2 to 5 times with distilled water,

이와 같이 세척, 여과과정을 마친 침전물을 55~65℃에서 10~14시간 동안 건조하여 제조된 것을 사용한다.
The precipitate thus washed and filtered is dried at 55 to 65 ° C for 10 to 14 hours.

본 발명에 따른 절연커버는 효과적으로 주상변압기로 침투하는 빗물을 차단할 수 있기 때문에 주상변압기의 소손을 효과적으로 방지하여, 주상변압기 교체 등의 문제를 해소할 수 있어 산업상 이용가능성이 크다.
Since the insulating cover according to the present invention can effectively block rainwater penetrating into the pillar transformer, it is possible to effectively prevent the pillar transformer from being burned out, thereby solving the problem of replacing the pillar transformer.

1: 절연커버
10: 원통형 몸체
20: 낙하방지 고리
101: 볼트수용부
201: 연결선
202: 원형 고리
1: Insulation cover
10: Cylindrical body
20: Anti-drop ring
101: Bolt receiving portion
201: Connecting cable
202: Circular ring

Claims (5)

주상변압기 내부로 빗물이 침투되어 주상변압기가 소손되는 것을 방지하기 위해 주상변압기의 순간압력저감장치 일체를 덮는 절연커버로서,
상기 절연커버(1)는 상협하광(上狹下廣)의 단층구조와 하부가 개방된 중공형의 구조를 이루는 상·하 일체의 원통형 몸체(10)이고, 상기 원통형 몸체(10)는 상부가 밀폐되고, 하부 원통형 몸체의 외주연을 따라 등간격을 두어 돌출형성된 반원기둥 형상의 볼트수용부(101)를 포함하여 상기 순간압력저감장치 전체를 내부에 수용하여 덮어주는 것이며,
상기 원통형 몸체(10)의 하부 일측에 연결 형성되는 낙하방지 고리(20)는 순간압력저감장치에서 순간적으로 분출되는 가스의 압력에 의해 열리는 절연커버가 지상으로 낙하하는 것을 방지하기 위하여, 상기 원통형 몸체(10)의 하부 일측에 연결 형성되는 연결선(201)과, 상기 연결선(201)의 말단에 형성되는 원형 고리(202)가 일체로 이루어지는 것임을 특징으로 하는 것에 있어서,

상기 절연커버(1)는 170~180℃의 내부온도를 유지하는 혼련기(Internal mixer)에폴리에틸렌 100중량부에 대하여,
EVA(ethylene vinylacetate copolymer) 또는 CPE(chlorinated polyethylene) 중 선택되는 보조수지 20~40중량부와,
자외선 흡수제 0.1~1중량부와,
난연제 5~10중량부와,
탈크(Talc) 5~15중량부와,
점토(Clay) 10~60중량부와,
카본블랙(Carbon Black) 1~5중량부를 첨가하여 15~30분 동안 20~30rpm의 회전속도로 믹싱(mixing)하여 난연 컴파운드를 제조한 후,
상기 제조된 난연 컴파운드를 재료로 하여 절연커버를 성형하는 것임을 특징으로 하는 주상변압기 순간압력저감장치용 절연커버.

The insulating cover covers the entire instantaneous pressure reducing device of the pillar transformer so as to prevent the pillar transformer from being damaged by penetration of rainwater into the pillar transformer,
The insulating cover 1 is an upper and lower cylindrical body 10 having a single-layer structure of upper and lower light and a hollow structure having an open bottom, and the cylindrical body 10 has an upper portion And a bolt accommodating portion (101) which is hermetically sealed and formed at an equal interval along the outer circumference of the lower cylindrical body, the bolt accommodating portion (101) being adapted to receive and cover the entire instantaneous pressure reducing device,
In order to prevent the insulating cover, which is opened by the pressure of the gas instantaneously sprayed from the instantaneous pressure reducing apparatus, from dropping to the ground, the drop prevention ring 20 connected to one side of the lower part of the cylindrical body 10, A connection line 201 connected to one side of the lower portion of the connection line 201 and a circular ring 202 formed at the end of the connection line 201 are integrally formed,

The insulating cover (1) is prepared by mixing 100 parts by weight of polyethylene in an internal mixer maintaining an internal temperature of 170 to 180 DEG C,
20 to 40 parts by weight of an auxiliary resin selected from ethylene vinylacetate copolymer (EVA) or chlorinated polyethylene (CPE)
0.1 to 1 part by weight of an ultraviolet absorber,
5 to 10 parts by weight of a flame retardant,
5 to 15 parts by weight of talc,
10 to 60 parts by weight of clay,
1 to 5 parts by weight of carbon black is added and mixed at a rotation speed of 20 to 30 rpm for 15 to 30 minutes to prepare a flame retardant compound,
Wherein the insulation cover is formed using the produced flame retardant compound as a material.

삭제delete 청구항 1에 있어서,
자외선 흡수제는 하이드록시 벤조페논(Hydroxy Benzophenone) 또는 벤조트리아졸(Benzotriazole) 중에서 선택되는 것임을 특징으로 하는 주상변압기 순간압력저감장치용 절연커버.
The method according to claim 1,
Wherein the ultraviolet absorber is selected from the group consisting of hydroxybenzophenone and benzotriazole.
청구항 1에 있어서,
난연제는 수산화마그네슘과 멜라민 모노머를 물(water)에 분산시켜 수산화마그네슘의 중량비가 25wt%가 되도록 혼합용액을 제조한 후,
상기 혼합용액에 인산을 첨가하되, 혼합용액 전체중량 대비 1.0~2.0wt%의 비율로 첨가하여 교반한 후,
온도를 100℃까지 상승시킨 상태에서 6~8시간 동안 교반하여 멜라민 입자를 수산화마그네슘과 반응시킨 후,
얼음물에서 20~40분 동안 급냉시킨 다음,
필터처리한 후 건조시켜 제조된 수산화마그네슘과 멜라민의 복합입자임을 특징으로 하는 주상변압기 순간압력저감장치용 절연커버.
The method according to claim 1,
The flame retardant is prepared by dispersing magnesium hydroxide and melamine monomer in water to prepare a mixed solution such that the weight ratio of magnesium hydroxide is 25 wt%
Phosphoric acid is added to the mixed solution at a ratio of 1.0 to 2.0 wt% based on the total weight of the mixed solution, followed by stirring,
The mixture was stirred for 6 to 8 hours while the temperature was raised to 100 ° C to react the melamine particles with magnesium hydroxide,
After quenching in ice water for 20-40 minutes,
Wherein the composite particle is a composite particle of magnesium hydroxide and melamine produced by filtering and drying.
청구항 4에 있어서,
수산화마그네슘은 황산마그네슘 용액에 동일 몰수의 수산화나트륨 용액을 투입한 후, 상온에서 교반하여 용액을 고르게 분산시켜 생성된 흰색의 겔 용액을 마이크로파 장치에 넣은 다음,
마이크로파 조사 전력 100~500W, 합성온도 60~100℃, 반응시간 5~15분의 조건에서 반응시키고,
반응을 마친 후 생성된 침전물을 상온에서 냉각한 후, 냉각시킨 침전물을 증류수로 2~5회 세척한 후 여과하고,
이와 같이 세척, 여과과정을 마친 침전물을 55~65℃에서 10~14시간 동안 건조하여 제조된 것임을 특징으로 하는 주상변압기 순간압력저감장치용 절연커버.
The method of claim 4,
Magnesium hydroxide is prepared by adding the same molar amount of sodium hydroxide solution to the magnesium sulfate solution, stirring it at room temperature to disperse the solution evenly, adding the resulting white gel solution into a microwave apparatus,
The reaction is carried out under conditions of a microwave irradiation power of 100 to 500 W, a synthesis temperature of 60 to 100 DEG C and a reaction time of 5 to 15 minutes,
After the completion of the reaction, the resulting precipitate was cooled at room temperature, and the cooled precipitate was washed 2 to 5 times with distilled water,
And the precipitate thus washed and filtered is dried at 55 to 65 DEG C for 10 to 14 hours to form an insulating cover for the pneumatic transformer instantaneous pressure reducing device.
KR1020130143025A 2013-11-22 2013-11-22 An insulating cover for pressure-relief device for the transformer KR101434487B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101791859B1 (en) 2016-03-22 2017-11-07 중부프라스틱 주식회사 Decreasing instantaneous pressure and release device for the transformer
CN108395203A (en) * 2018-03-23 2018-08-14 重庆鸽牌电瓷有限公司 A kind of superhigh intensity special cermacis electric ceramic formulation
KR102641068B1 (en) 2023-06-19 2024-02-27 제룡전기 주식회사 Transformer band type cover clamp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960012219U (en) * 1994-09-01 1996-04-17 방광식 Bushing terminal insulation cover
KR970003099U (en) * 1995-06-09 1997-01-24 박준영 Transformer insulator cover
KR200384366Y1 (en) 2005-02-22 2005-05-13 한국전기안전공사 An insulating cover
KR20110002286U (en) * 2009-08-31 2011-03-08 위성범 Clampers for golfclub headcover

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960012219U (en) * 1994-09-01 1996-04-17 방광식 Bushing terminal insulation cover
KR970003099U (en) * 1995-06-09 1997-01-24 박준영 Transformer insulator cover
KR200384366Y1 (en) 2005-02-22 2005-05-13 한국전기안전공사 An insulating cover
KR20110002286U (en) * 2009-08-31 2011-03-08 위성범 Clampers for golfclub headcover

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101791859B1 (en) 2016-03-22 2017-11-07 중부프라스틱 주식회사 Decreasing instantaneous pressure and release device for the transformer
CN108395203A (en) * 2018-03-23 2018-08-14 重庆鸽牌电瓷有限公司 A kind of superhigh intensity special cermacis electric ceramic formulation
KR102641068B1 (en) 2023-06-19 2024-02-27 제룡전기 주식회사 Transformer band type cover clamp

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