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JPS61168219A - Oil-immersed electric equipment capable of adsorbing moisture in oil - Google Patents

Oil-immersed electric equipment capable of adsorbing moisture in oil

Info

Publication number
JPS61168219A
JPS61168219A JP759385A JP759385A JPS61168219A JP S61168219 A JPS61168219 A JP S61168219A JP 759385 A JP759385 A JP 759385A JP 759385 A JP759385 A JP 759385A JP S61168219 A JPS61168219 A JP S61168219A
Authority
JP
Japan
Prior art keywords
oil
electrical equipment
desiccant
water
filled electrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP759385A
Other languages
Japanese (ja)
Inventor
Yaichiro Takeda
竹田 弥一郎
Takeo Yoshioka
武男 吉岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP759385A priority Critical patent/JPS61168219A/en
Publication of JPS61168219A publication Critical patent/JPS61168219A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01F27/14Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)

Abstract

PURPOSE:To maintain moisture content in oil at a low concentration in an oil-immersed electric equipment by accommodating a desiccant partitioned by an oil-unpermeable membrane. CONSTITUTION:The upper end part of an oil-immersed electric equipment 1 is fitted with a container 8, the opening 8b of which is applied with an oil- unpermeable thin membrane 9. The container 8 accommodates a textile bag 10 filled with a desiccant - synthetic zeolite -. The oil 2, which might gradually overflow the body of the equipment 1, is stored in a trap tank 12 positioned at both lower ends of the container 8. Even when the desiccant 11 and the oil 2 contact each other via the membrane 9, the oil 2 scarcely flows into the desiccant 11 since the internal pressure of the body 1 is controlled at a low level.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、油入り電気機器の油中水分吸着装置に関す
るものであり、さらに詳しくいうと、変圧器の電圧調整
器のような油入り電気機器の油中水分増加による機器の
機能低下を防止するための油中水分吸着装置に関するも
のである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water-in-oil adsorption device for oil-filled electrical equipment, and more specifically, it relates to an oil-filled electrical equipment such as a voltage regulator for a transformer. The present invention relates to a moisture-in-oil adsorption device for preventing functional deterioration of equipment due to an increase in moisture in the oil of the equipment.

〔従来の技術〕[Conventional technology]

従来の油入り電気機器の水分管理について、コンサベー
タ形変圧器を例として、第2図によって説明すると、コ
ンサベータ形変圧器(1)の機器内に本体内の油(コ)
に連通するコンサベータ室(II)には昇温により液体
が膨張した際、圧力上昇が起こらなイヨウ一定量の空間
が設けられている。コンサベータ室(5)から延びた管
は乾燥塔(!r)に接続しており乾燥塔(yl内には、
乾燥剤として塩化コバルト含浸シリカゲル(6)が収容
され、乾燥塔(夕)の他端には、大気と接触する空気孔
c≧)が設けられている。
Regarding moisture management in conventional oil-filled electrical equipment, using a conservator type transformer as an example, we will explain it with reference to Figure 2.
A certain amount of space is provided in the conservator chamber (II) which communicates with the conservator chamber (II) so that the pressure does not increase when the liquid expands due to temperature rise. The pipe extending from the conservator room (5) is connected to the drying tower (!r), and inside the drying tower (yl),
A cobalt chloride-impregnated silica gel (6) is housed as a desiccant, and the other end of the drying tower is provided with an air hole c≧) in contact with the atmosphere.

このため、液面変動時、乾燥空気がコンサベータ室(5
)内にとり込まれる。
Therefore, when the liquid level fluctuates, dry air flows into the conservator room (5
).

以上の構成では、油入り電気機器に存在する水分の量が
少ない場合は、水分の管理が可能であるが、特に水分が
多く含まれている紙フェノール等の絶縁物を多く用いた
油入り電気機器、たとえば電圧調整器などでは、乾燥作
業を長時間、かつ、比較的低い温度で行なわなければ絶
縁物を劣化させてしまうことがあり、また、乾燥作業終
了後も大気との接触をできるだけ防止する等の工夫をし
なげればならなかった。
With the above configuration, if the amount of moisture present in oil-filled electrical equipment is small, it is possible to manage moisture, but especially in oil-filled electrical equipment that uses a large amount of insulating material such as paper phenol, which contains a large amount of water. For equipment such as voltage regulators, the insulation may deteriorate if the drying process is not carried out for a long time and at a relatively low temperature, and contact with the atmosphere should be prevented as much as possible even after the drying process is complete. I had to come up with ways to do this.

他方、油中に乾燥剤、例えば、合成ゼオライト、シリカ
ゲル、活性アルミナのようなものを油循環の一部に組み
込む方法も考えられるが、変圧器では、温度が9080
以上に達することもあるため、水分の吸湿効果は常温付
近で使用tまた場合に比べて大きく低下してしまう。
On the other hand, it is also possible to incorporate desiccants into the oil, such as synthetic zeolites, silica gel, activated alumina, as part of the oil circulation;
Since the moisture absorption effect may reach the above level, the moisture absorption effect is greatly reduced compared to when used near room temperature.

〔発明が解決しようとする問題点3 以上のような従来の油入り電気機器の油中水分吸着装置
では、機能を低下させる不純物としての水分は、最もそ
の影響が大きく、特に絶縁物中に水分を含有しやすい材
料を多く用いた電圧調整器などでは、水分以外の劣化生
成物を多く生成するため、再生装置などの高価な装置で
油を浄化(水分低下を含む)しなげればならないが、こ
のような大きな装置を機器毎に備えることは必ずしも効
果的でないという問題点があった。
[Problem to be Solved by the Invention 3] In the conventional water-in-oil adsorption device for oil-filled electrical equipment as described above, water as an impurity that deteriorates the function has the greatest effect, especially when water is present in the insulator. Voltage regulators and other devices that use materials that tend to contain a lot of water produce a lot of deterioration products other than water, so the oil must be purified (including reducing water content) using expensive equipment such as a regenerator. However, there is a problem in that it is not necessarily effective to provide such a large device for each device.

この発明は、以上のような問題点を解消するためになさ
れたもので、油入り電気機器内の油の水分を低濃度に維
持することにより、電気機器としての創作をより容易に
するばかりでなく、簡単な手段によってその長期安定稼
動を可能とする油入り電気機器の油中水分吸着装置を得
ることを目的とする。
This invention was made to solve the above problems, and by maintaining the water content of oil in oil-filled electrical equipment at a low concentration, it will not only make it easier to create electrical equipment. The object of the present invention is to obtain a water-in-oil adsorption device for oil-filled electrical equipment that enables long-term stable operation using simple means.

〔問題点を解決するための手段〕[Means for solving problems]

この発明に係る油入り電気機器の油中水分吸着装置は、
油入り電気機器本体の油に連通した収納容器の開口部に
難浸液性の薄膜を配設し、収納容器内には乾燥剤が収納
されている。
The water-in-oil adsorption device for oil-filled electrical equipment according to the present invention includes:
A liquid-resistant thin film is disposed at the opening of a storage container that communicates with the oil of the oil-filled electrical equipment body, and a desiccant is stored within the storage container.

〔作 用〕[For production]

この発明においては、乾燥剤が冷却絶縁媒体である絶縁
油中に浸漬されることがないためその吸着能力はV漬状
態で使用された場合に比べて温度上昇時にも格段の能力
が発揮でき、少量の乾燥剤で所望の水分吸着効果が得ら
れる。
In this invention, since the desiccant is not immersed in the insulating oil, which is a cooling insulating medium, its adsorption ability is much greater even when the temperature rises than when it is used in a V-immersion state. The desired moisture adsorption effect can be obtained with a small amount of desiccant.

〔発明の実施例〕[Embodiments of the invention]

第7図はこの発明の一実施例を示し、1ff)は収納容
器であり、油入り電気機器(1)の上端部に取付けられ
ている。収納容器(glの開口部(gb)には難浸液性
の薄膜(9)が装着され、布製袋(lO)に収容された
乾燥剤(/l)である合成ゼオライトが収納容器(tr
)に収容されている。難浸液性薄膜とは、例えばシリコ
ンゴム、ニトリルゴム等の高分子材料でなるもので、気
体は容易に透過するが油は透過が困難であるという特性
を有するものである。収納容器(flの両端縦方向側下
端に電気機器本体(/l内の油−)が徐々に侵入したと
き、油−)を貯えるトラップ槽(lコ)が設けられてい
る。難浸液性の薄膜(9)は電気機器本体f/lのフラ
ンジ面(za)と収納容器(p) (f)の内周下部に設けられ開口部(、rb)を形成す
る突起板(ga)によって耐油性のよい、たとえばニト
リルパツキン(13)が上下方向から押圧され、シール
が行われている。収納容器(g)の箱体は、電気機器本
体(/lとニトリルゴムのパツキン(tq)を介して結
合されている。収納容器(glの上蓋(tS)はボルト
止め(16)で取りはずし可能な構造となっている。
FIG. 7 shows an embodiment of the present invention, where 1ff) is a storage container, which is attached to the upper end of the oil-filled electrical equipment (1). A liquid-resistant thin film (9) is attached to the opening (gb) of the storage container (gl), and a synthetic zeolite serving as a desiccant (/l) housed in a cloth bag (lO) is inserted into the storage container (tr
) is housed in. The liquid-resistant thin film is made of a polymeric material such as silicone rubber or nitrile rubber, and has the characteristic that gas can easily pass through it, but oil can hardly pass through it. A trap tank (l) is provided at both ends of the storage container (fl) to store the oil when the electric equipment main body (oil in /l) gradually enters the lower end of both ends in the vertical direction. A liquid-resistant thin film (9) is provided on the flange surface (za) of the electrical equipment body f/l and on the lower part of the inner circumference of the storage container (p) (f), and is attached to a protruding plate (, rb) that forms an opening (, rb). ga), a nitrile gasket (13) having good oil resistance, for example, is pressed from above and below to form a seal. The box body of the storage container (g) is connected to the electrical equipment body (/l) via a nitrile rubber gasket (tq).The top cover (tS) of the storage container (gl) can be removed with bolts (16). It has a structure.

以上の構成によ−リ、電気機器組立て時、コイル組立て
、その他の固体絶縁物は乾燥処理後1本体(/>内に収
納され、不純物を除去した油(2)が注入されて完成す
る。このとき、油(,2)内には固体絶縁物内に残留し
た水分が放出され、徐々にその水分が増量する。さらに
電気機器としての稼動が開始すると、温度が上昇するた
め、この水分放出は幾分加速される。さらにパツキン部
からは大気中の水分が徐々に侵入してくる。
With the above configuration, when assembling electrical equipment, coil assemblies and other solid insulators are housed in one main body after drying, and the oil (2) from which impurities have been removed is injected to complete the assembly. At this time, the water remaining in the solid insulator is released into the oil (2), and the amount of water gradually increases.Furthermore, when the electrical equipment starts operating, the temperature rises, and this water is released. is somewhat accelerated.Furthermore, moisture from the atmosphere gradually enters through the gasket.

かようにして油(,2)中の水分は徐々に増加するが、
液面に接して配置された合成ゼオライトのような乾燥剤
(11)により水分は除去される。このとき、薄膜(9
)を介して乾燥剤(ll)と油(2)が接しているが、
電気機器本体(1)の内圧上昇が低く抑制されているた
め、油(2)は難浸液性の薄膜(テ)を越えて乾燥剤(
ll)への流入は非常に少なくなり、乾燥剤(//)は
油中V漠の状態にならないので、その水分吸着能力は大
きい状態に保たれる。
In this way, the water content in oil (,2) gradually increases,
Moisture is removed by a desiccant (11), such as a synthetic zeolite, placed in contact with the liquid surface. At this time, a thin film (9
), the desiccant (ll) and oil (2) are in contact with each other through
Since the rise in internal pressure of the electrical equipment body (1) is suppressed to a low level, the oil (2) passes through the thin film (te) that is not immersible and is absorbed by the desiccant (te).
Since the inflow into ll) will be very low and the desiccant (//) will not be in a state of vaporization in the oil, its water adsorption capacity will remain high.

また、上蓋(l5)をはずして乾燥剤(ll)を容易に
交換することができる。
Furthermore, the desiccant (ll) can be easily replaced by removing the top cover (l5).

なお、難浸液性の薄膜(ワ)としては、油(2)が鉱油
の場合はシリコンゴム膜でよいが、油(2)が車両相変
土器などに使用される低沸点のシリコーン油の場合はニ
ドI)ルゴム膜が好適である。
In addition, if the oil (2) is mineral oil, a silicone rubber film may be used as the liquid-resistant thin film (wa), but if the oil (2) is mineral oil, a silicone rubber film may be used. In this case, a rubber membrane is suitable.

また、上記笑施例においては、油(,2)の上に薄膜(
9)を介して乾燥剤(ll)を配置したが、液体の透過
量が無視できる薄膜(9)を用いることにより、乾燥剤
(it)乞斜め横等、適宜の位置に配置してもよく、同
様の効果を奏する。
In addition, in the above example, a thin film (
9), but by using a thin film (9) in which the amount of liquid permeation is negligible, the desiccant (IT) may be placed in an appropriate position, such as diagonally to the side. , has the same effect.

〔発明の効果〕〔Effect of the invention〕

この発明は、以上の説明から明らかな」:うに、。 This invention is clear from the above description.

油入り電気機器に難浸液性の膜を介して乾燥剤な収容し
たので、簡単な構造により油中水分を著しく低濃度に抑
制することが可能であり、油入り電気機器の性能を長期
間良好な状態に維持することができる。
Since the desiccant is contained in oil-filled electrical equipment via a liquid-resistant membrane, it is possible to suppress moisture in oil to a significantly low concentration with a simple structure, and the performance of oil-filled electrical equipment can be maintained for a long period of time. Can be maintained in good condition.

【図面の簡単な説明】[Brief explanation of drawings]

第1図はこの発明の一実施例の正断面図、第一図は従来
の油中水分吸着装置の正断面図である。 (1)・・電気機器本体、(2)・・油、(g)・・収
納容器、(trb)・・開口部、(9)・・薄膜、(l
l)・・乾燥剤。 ゛  なお、各図中、同一符号は同−又は相当部分を示
す。 毘1図 Cg’) 帛2図
FIG. 1 is a front sectional view of an embodiment of the present invention, and FIG. 1 is a front sectional view of a conventional water-in-oil adsorption device. (1)...Electrical equipment body, (2)...oil, (g)...storage container, (trb)...opening, (9)...thin film, (l
l)...Drying agent.゛ In each figure, the same reference numerals indicate the same or corresponding parts. Figure 1 Cg') Figure 2

Claims (5)

【特許請求の範囲】[Claims] (1)電気機器本体の油に連通した開口部が形成された
収納容器と、前記開口部を閉塞して装着された難浸液性
の薄膜と、前記収納容器に収納された乾燥剤とを備えて
なる油入り電気機器の油中水分吸着装置。
(1) A storage container in which an opening communicating with the oil of the electrical equipment body is formed, a liquid-resistant thin film attached to close the opening, and a desiccant stored in the storage container. A moisture adsorption device for oil-filled electrical equipment.
(2)薄膜がシリコンゴム膜である特許請求の範囲第1
項記載の油入り電気機器の油中水分吸着装置。
(2) Claim 1 in which the thin film is a silicone rubber film
A water-in-oil adsorption device for oil-filled electrical equipment as described in 2.
(3)薄膜がニトリルゴム膜である特許請求の範囲第1
項記載の油入り電気機器の油中水分吸着装置。
(3) Claim 1 in which the thin film is a nitrile rubber film
A water-in-oil adsorption device for oil-filled electrical equipment as described in 2.
(4)乾燥剤が合成ゼオライトである特許請求の範囲第
1項記載の油入り電気機器の油中水分吸着装置。
(4) The water-in-oil adsorption device for oil-filled electrical equipment according to claim 1, wherein the desiccant is a synthetic zeolite.
(5)着脱可能の蓋が設けられた収納容器を備えた特許
請求の範囲第1項記載の油入り電気機器の油中水分吸着
装置。
(5) The water-in-oil adsorption device for oil-filled electrical equipment according to claim 1, comprising a storage container provided with a removable lid.
JP759385A 1985-01-21 1985-01-21 Oil-immersed electric equipment capable of adsorbing moisture in oil Pending JPS61168219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP759385A JPS61168219A (en) 1985-01-21 1985-01-21 Oil-immersed electric equipment capable of adsorbing moisture in oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP759385A JPS61168219A (en) 1985-01-21 1985-01-21 Oil-immersed electric equipment capable of adsorbing moisture in oil

Publications (1)

Publication Number Publication Date
JPS61168219A true JPS61168219A (en) 1986-07-29

Family

ID=11670099

Family Applications (1)

Application Number Title Priority Date Filing Date
JP759385A Pending JPS61168219A (en) 1985-01-21 1985-01-21 Oil-immersed electric equipment capable of adsorbing moisture in oil

Country Status (1)

Country Link
JP (1) JPS61168219A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227711U (en) * 1988-08-12 1990-02-22
JP2007221047A (en) * 2006-02-20 2007-08-30 Toshiba Corp Transformer
CN102867622A (en) * 2012-09-12 2013-01-09 辽宁省电力有限公司电力科学研究院 Oil injection-preventive moisture absorber
CN103093927A (en) * 2013-01-27 2013-05-08 大连世有电力科技有限公司 Respirator used for transformer
KR101340515B1 (en) * 2005-03-16 2013-12-11 가부시끼가이샤 히다치 세이사꾸쇼 Static inductive apparatus with silicone liquid

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227711U (en) * 1988-08-12 1990-02-22
KR101340515B1 (en) * 2005-03-16 2013-12-11 가부시끼가이샤 히다치 세이사꾸쇼 Static inductive apparatus with silicone liquid
JP2007221047A (en) * 2006-02-20 2007-08-30 Toshiba Corp Transformer
CN102867622A (en) * 2012-09-12 2013-01-09 辽宁省电力有限公司电力科学研究院 Oil injection-preventive moisture absorber
CN103093927A (en) * 2013-01-27 2013-05-08 大连世有电力科技有限公司 Respirator used for transformer

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