KR20220001022U - Oil type transformer washer member - Google Patents

Oil type transformer washer member Download PDF

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Publication number
KR20220001022U
KR20220001022U KR2020200003930U KR20200003930U KR20220001022U KR 20220001022 U KR20220001022 U KR 20220001022U KR 2020200003930 U KR2020200003930 U KR 2020200003930U KR 20200003930 U KR20200003930 U KR 20200003930U KR 20220001022 U KR20220001022 U KR 20220001022U
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South Korea
Prior art keywords
washer member
oil
bolt
washer
transformer
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KR2020200003930U
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Korean (ko)
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이성은
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이성은
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Priority to KR2020200003930U priority Critical patent/KR20220001022U/en
Publication of KR20220001022U publication Critical patent/KR20220001022U/en

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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
    • H01F27/08Cooling; Ventilating
    • H01F27/10Liquid cooling
    • H01F27/12Oil cooling
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/02Casings
    • H01F27/025Constructional details relating to cooling

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

본 고안은 권선부와 와셔부재 사이 밀착면으로 오일이 통과하도록 하여 와셔부재가 열에 의해 손상되지 않고 변압기 전체 온도상승 억제할 수 있는 유입식 변압기 와셔부재를 제공한다.The present invention provides an oil-immersed transformer washer member capable of suppressing the overall temperature rise of the transformer without damaging the washer member by heat by allowing oil to pass through the contact surface between the winding part and the washer member.

Description

유입식 변압기 와셔부재{Oil type transformer washer member}Oil type transformer washer member

본 고안은 유입식 변압기 와셔부재에 관련되는 것으로서, 와셔부재와 권선부 사이 밀착부로 오일이 통과하도록 하여 열에 의한 와셔부재의 온도 상승을 줄여 유입식 변압기의 온도상승을 억제하도록 한 유입식 변압기 와셔부재에 관한 것이다.The present invention relates to an oil-immersed transformer washer member, and an oil-immersed transformer washer member to suppress the temperature rise of the oil-immersed transformer by reducing the temperature rise of the washer member due to heat by allowing oil to pass through the close contact between the washer member and the winding part is about

유입식 변압기는 함체 내부에 오일이 충진된 상태로 자로를 형성하는 철심 및 이 철심에 결합되어 전로를 형성하는 권선을 포함하여 구성되며, 운전시 발생되는 손실로 인한 절연물의 온도상승을 그 절연물에 규정한 일정한 허용값 이하로 억제, 관리할 수 있도록 방열기가 제공된다.Oil-immersed transformer consists of an iron core that forms a magnetic path with oil inside the enclosure and a winding that is coupled to the iron core to form a circuit, and the temperature rise of the insulator due to loss during operation is applied to the insulator. A radiator is provided so that it can be suppressed and managed below a specified allowable value.

유입식 변압기의 방열기는 변압기에서 발생되는 열을 냉각시키도록 함체의 둘레에 구비된다.The radiator of the oil-immersed transformer is provided around the enclosure to cool the heat generated by the transformer.

유입식 변압기의 운전시 권선부의 철심 및 권선이 발열하게 되면, 이렇게 발생된 열은 유입식 변압기의 경우 절연유를 매개체로 하여 방사, 대류 등 의해서 외기 중에 방열되며, 발열량이 방열량보다도 큰 동안은 온도가 상승하지만 발열량이 방열량과 평형을 유지하게 되면 온도는 일정하게 유지된다.When the iron core and winding of the winding part generate heat during operation of the oil-immersed transformer, the generated heat is radiated to the outside air by radiation and convection using the insulating oil as a medium in the case of the oil-immersed transformer, and the temperature is maintained while the amount of heat generated is greater than the amount of heat dissipated. It rises, but when the amount of heat is maintained in equilibrium with the amount of heat dissipation, the temperature remains constant.

함체의 내부에는 권선과 철심과 같은 구조물을 고정하기 위해 볼트 및 너트를 사용하게 되고, 또한 상기 볼트머리 밑에는 볼트의 느슨해짐을 방지하기 위한 목적으로 절연와셔를 사용하게 된다.Bolts and nuts are used inside the housing to fix structures such as windings and iron cores, and an insulating washer is used under the bolt head to prevent loosening of the bolts.

그러나 변압기에 사용되는 와셔는 볼트와의 밀착성으로 인해 주변이 오일이 와샤와 볼트 사이로 침투하지 못해 와셔의 급격한 온도상승을 가져와 전기적 절연 및 열에 의해 와셔가 쉽게 손상될 뿐만 아니라 변압기 전체 온도상승을 억제할 수 없어 절연 차단이 되지 못하는 문제점이 있다.However, the washer used in the transformer does not allow oil to penetrate between the washer and the bolt due to its adhesion to the bolt, resulting in a rapid temperature rise of the washer. There is a problem that the insulation cannot be cut off because it cannot be done.

대한민국 공개특허공보 공개번호 10-2017-0141532 호Korean Patent Laid-Open Publication No. 10-2017-0141532

와셔부재와 권선부 사이 밀착부 사이로 오일이 순환할 수 있도록 와셔 부재의 표면에 틈새홈을 형성하여 와셔부재가 쉽게 손상되지 않고 변압기 전체 온도상승 억제에 사용되는 유입식 변압기에 사용되는 와셔부재를 제공한다.Provide a washer member used in oil-immersed transformers used to suppress the overall temperature rise of the transformer without easily damaging the washer member by forming a crevice on the surface of the washer member so that the oil can circulate between the washer member and the close contact between the winding section do.

함체 내부에 설치된 권선부에 볼트를 너트 체결할 때, 볼트와 권선부 외면 사이에 끼워져 볼트의 체결력을 높이는 유입 변압기의 와셔부재의 절연 효과를 가지도록 한 것이 요지다.The key point is to have an insulating effect of the washer member of the oil-intake transformer that is inserted between the bolt and the outer surface of the winding part to increase the fastening force of the bolt when the bolt is fastened to the winding part installed inside the enclosure.

와셔부재와 권선부 사이로 오일이 순환할 수 있도록 와셔 부재의 표면에 틈새홈을 형성하여 권선부와 와셔부재 사이 밀착면으로 오일이 통과하도록 하여 와셔부재가 열에 의해 손상되지 않고 변압기 전체 온도상승 억제할 수 있는 효과가 있다.To allow oil to circulate between the washer member and the winding part, a gap is formed on the surface of the washer member to allow the oil to pass through the close contact surface between the winding part and the washer member. can have an effect.

도 1은 유입식 변압기의 전체 구조를 도시한 도면.
도 2는 도 1의 와셔부재를 입체적으로 도시한 도면.
1 is a view showing the overall structure of the oil-immersed transformer.
Figure 2 is a three-dimensional view of the washer member of Figure 1;

도 1은 유입식 변압기의 전체 구조를 도시한 도면이고, 도 2는 와셔부재와 볼트의 단면을 도시한 도면이다.FIG. 1 is a view showing the overall structure of an oil-immersed transformer, and FIG. 2 is a view showing a cross-section of a washer member and a bolt.

도 1, 2에서와 같이 유입식 변압기는 오일이 채워는 함체(10), 함체(10) 내부에 장착되는 권선부(20), 상기 함체(10)의 측부에 설치되며 상기 함체(10) 내의 오일을 제공받아 외기와 열교환하여 방열시키는 방열기로 구성한다. 1 and 2, the oil-immersed transformer is installed on the side of the housing 10 filled with oil, the winding unit 20 mounted inside the housing 10, and the housing 10, and within the housing 10 It is composed of a radiator that receives oil and exchanges heat with outside air to radiate heat.

함체(10) 내부에 설치되는 권선부(20)는 함체(10) 내부 공간에 고정 상태를 유지할 수 있도록 볼(30)트와 너트(40) 그리고 와셔부재(50)를 통해 체결 구성된다.The winding unit 20 installed inside the housing 10 is fastened through the bolt 30 , the nut 40 and the washer member 50 to maintain a fixed state in the housing 10 inner space.

구체적으로 권선부(20)의 표면에는 와셔부재(50)를 위치하고, 권선부(20)의 내면에는 너트(40)를 배치한 상태에서 볼트(30)를 와셔부재(50) 및 너트(40)로 순차적으로 관통시켜 체결 구성한다.Specifically, the washer member 50 is positioned on the surface of the winding part 20, and the bolt 30 is screwed with the washer member 50 and the nut 40 on the inner surface of the winding part 20 in a state where the nut 40 is disposed. Constructed by sequentially passing through.

이때 와셔부재(50)와 볼트(30)는 체결과정에서 서로 견밀한 밀착 상태를 가지게 되고, 또한 와셔부재(50)의 하면과 권선부(20)의 표면 역시 견밀한 밀착 상태가 된다.At this time, the washer member 50 and the bolt 30 are in tight contact with each other during the fastening process, and the lower surface of the washer member 50 and the surface of the winding part 20 are also in tight contact.

와셔부재(50)는 원판 형태로 중앙으로는 볼트(30)가 통과하기 위한 구멍(52)이 형성되고, 그 하면에는 틈새홈(54)이 함몰 형성된다.The washer member 50 has a disk shape, and a hole 52 for the bolt 30 to pass through is formed in the center thereof, and a gap groove 54 is recessed on the lower surface of the washer member 50 .

틈새홈(54)의 양단은 와셔부재(50)의 외곽면까지 연장 형성됨에 따라 어, 함체(10)의 내부에 충전되어 있는 유체를 유입시켜 와셔부재(50)를 냉각시키는 역할을 수행한다.As both ends of the gap groove 54 extend to the outer surface of the washer member 50 , the fluid filled in the housing 10 flows in to cool the washer member 50 .

와셔부재(50)는 볼트(52)와 권선부(20)의 표면 사이에 조립됨에 따라 함체(10)의 내부에 채워진 오일이 권선부(20)에 발열에 의해 뜨거워지는 과정에서 와셔부재(50)가 열을 견디지 못하고 형상이 변형되는 등의 손상이 발생하는 데, 와샤부재(50)의 하면에 틈새홈을 형성하여 오일이 틈새홈(64)을 통해 와셔부재(50)의 하면으로 유입되도록 함으로서 냉각효과를 기대할 수 있어 와셔부재(50)의 변형 및 손상됨을 방지할 수 있는 것이다.As the washer member 50 is assembled between the bolt 52 and the surface of the winding part 20, the washer member 50 ) cannot withstand the heat and causes damage such as deformation of the shape. By doing so, a cooling effect can be expected, and deformation and damage of the washer member 50 can be prevented.

10: 함체 20: 권선부
30: 볼트 50: 와셔부재
54: 틈새홈
10: enclosure 20: winding part
30: bolt 50: washer member
54: crevice

Claims (1)

함체(10) 내부에 설치된 권선부(20)에 볼트(30)를 너트(40) 체결할 때, 볼트(30)와 권선부(20) 외면 사이에 끼워져 볼트(30)의 체결력을 높이는 유입 변압기의 와셔부재(50)의 절연 효과를 가지도록 한 것을 특징으로 하는 유입식변압기 와셔부재.


When the bolt 30 is fastened with the nut 40 to the winding unit 20 installed inside the enclosure 10, it is inserted between the bolt 30 and the outer surface of the winding unit 20 to increase the fastening force of the bolt 30. Oil-immersed transformer washer member, characterized in that to have an insulating effect of the washer member (50).


KR2020200003930U 2020-10-31 2020-10-31 Oil type transformer washer member KR20220001022U (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170141532A (en) 2016-06-15 2017-12-26 현대일렉트릭앤에너지시스템(주) Oil immersed transformer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170141532A (en) 2016-06-15 2017-12-26 현대일렉트릭앤에너지시스템(주) Oil immersed transformer

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