JPH0475307A - Oil-filled electric device - Google Patents
Oil-filled electric deviceInfo
- Publication number
- JPH0475307A JPH0475307A JP18791290A JP18791290A JPH0475307A JP H0475307 A JPH0475307 A JP H0475307A JP 18791290 A JP18791290 A JP 18791290A JP 18791290 A JP18791290 A JP 18791290A JP H0475307 A JPH0475307 A JP H0475307A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- gas
- phase
- tank
- filled
- 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
Links
- 239000007789 gas Substances 0.000 abstract description 18
- 238000000926 separation method Methods 0.000 abstract description 15
- 238000009413 insulation Methods 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 7
- 230000002265 prevention Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 2
- 240000007124 Brassica oleracea Species 0.000 description 1
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 1
- 235000012905 Brassica oleracea var viridis Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Transformer Cooling (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、電力系統に接続される単相もしくは３相油人
電気機器に係り、特に、それら相互間の離隔距離の低減
を図った油入電気機器に関するものである。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to single-phase or three-phase oil-powered electrical equipment connected to an electric power system, and particularly relates to the separation distance between them. This relates to oil-filled electrical equipment that aims to reduce the amount of water used.
（従来の技術）
電力系統に接続される単相油入電気機器で３相油人電気
機器を構成する場合や、３相油人電気機器を複数個配置
する場合においては、主回路引出し部分の気中ブッシン
グの気中絶縁離隔距離と変圧器火災時の類焼防止の離隔
距離から、油入電気機器の相互離隔距離が決定されてい
る。例えば、超々高圧系統に接続される単相油入電気機
器では、一般に１２ｍ〜１５ｍの離隔距離がとられてい
る。(Prior art) When configuring 3-phase oil-filled electrical equipment from single-phase oil-filled electrical equipment connected to the power system, or when arranging multiple 3-phase oil-filled electrical equipment, it is necessary to The mutual separation distance of oil-filled electrical equipment is determined from the air insulation separation distance of the air bushing and the separation distance to prevent spread of fire in the event of a transformer fire. For example, in single-phase oil-filled electrical equipment connected to an ultra-super high voltage system, a separation distance of 12 m to 15 m is generally taken.
第５図及び第６図に、従来から用いられている油入電気
機器の一つである単相油入変圧器の側面図及びその配置
例を示した。即ち、第５図に示した様に、単相油入変圧
器１はタンク２内に収納され、その上部には主回路引出
し部分である気中ブッシング１６と主回路引込み架線１
７及びコンサベータ１０が設けられている。また、単相
油入変圧器１の側部には、油ダクト１４を介してケーブ
ル用油絶縁接続箱１３が設けられている。さらに、第６
図に示した様に、上記の単相油入変圧器１ａ。FIG. 5 and FIG. 6 show a side view of a single-phase oil-immersed transformer, which is one of conventionally used oil-filled electrical equipment, and an example of its arrangement. That is, as shown in FIG. 5, a single-phase oil-immersed transformer 1 is housed in a tank 2, and an aerial bushing 16, which is a main circuit lead-out part, and a main circuit lead-in overhead wire 1 are installed in the upper part of the tank 2.
7 and a conservator 10 are provided. Further, an oil-insulated cable connection box 13 is provided on the side of the single-phase oil-immersed transformer 1 via an oil duct 14 . Furthermore, the sixth
As shown in the figure, the above-mentioned single-phase oil-immersed transformer 1a.
ｌｂ、ｌｃから３相油人変圧器を構成す′る場合には、
各単相油入変圧器１ａ、ｌｂ、ｌｃが、所定の間隔ｇ
（変圧器離隔距離）、をおいて配設され、また、各単相
油入変圧器の長手方向側部には複数個の冷却器５が配設
され、冷却器パンクロが構成されている。When constructing a three-phase oil transformer from lb and lc,
Each single-phase oil-immersed transformer 1a, lb, lc is arranged at a predetermined interval g.
(transformer separation distance), and a plurality of coolers 5 are arranged on the longitudinal side of each single-phase oil-immersed transformer to form a cooler panchromator.
なお、前記変圧器離隔距離ｇは、気中ブッシング１６と
主回路引込み架線１７の気中絶縁離隔距離と、単相油入
変圧器１ａが内部事故等により火災に至った場合でも、
隣接する単相油入変圧器１ｂが類焼しないと共に、火災
の焔が風により隣接する単相油入変圧器１ｂの気中ブッ
シング１６ｂを偏熱破壊させないような離隔距離から決
定されている。The transformer separation distance g is the air insulation separation distance between the air bushing 16 and the main circuit lead-in overhead wire 17, and even if the single-phase oil-immersed transformer 1a catches fire due to an internal accident, etc.
The separation distance is determined so that the adjacent single-phase oil-immersed transformer 1b will not catch fire and the flames of the fire will not destroy the air bushing 16b of the adjacent single-phase oil-immersed transformer 1b due to uneven heat.
（発明が解決しようとする課題）
しかしながら、上記の様な従来の油入電気機器には、以
下に述べる様な解決すべき課題があった。(Problems to be Solved by the Invention) However, the conventional oil-filled electrical equipment as described above has the following problems to be solved.
即ち、第６図に示した様に、隣接配置する単相油入変圧
器１ａ、ｌｂ、ｌｃを所定の離隔距離をおいて配設しな
ければならず、３粗油人変圧器を構成する場合、その両
端部間の長さはＬｌとなるため、非常に大きな設置スペ
ースが必要となり、用地の取得が困難である現状におい
ては発変電所の建設上問題となっていた。That is, as shown in Fig. 6, adjacent single-phase oil-immersed transformers 1a, lb, and lc must be placed at a predetermined distance apart, forming a three-phase oil-immersed transformer. In this case, the length between both ends is Ll, which requires a very large installation space, which has been a problem in the construction of power generation and substations in the current situation where land acquisition is difficult.
そこで、上記気中絶縁離隔距離を低減するために、油入
電気機器の主回路引出し部分を気中ブッシングからケー
ブル引出しやガス母線による引出しに変更することが考
えられるが、それたけでは防火対策上十分ではなく、油
入電気機器と開閉設備を接続するケーブルやその洞道も
しくはガス絶縁母線の長さを低減することができず、付
帯設備を合理化することができないという欠点があった
。Therefore, in order to reduce the above-mentioned air insulation separation distance, it may be possible to change the main circuit lead-out part of oil-filled electrical equipment from an air bushing to a cable lead-out or a gas bus bar, but this is not enough for fire prevention measures. This method is not sufficient, and has the disadvantage that it is not possible to reduce the length of cables, their tunnels, or gas-insulated busbars that connect oil-filled electrical equipment and switchgear equipment, and it is not possible to rationalize incidental equipment.
本発明は、上記の様な従来技術の問題点を解決するため
に提案されたもので、その目的は、設置スペースの低減
を可能とし、また、付帯設備の合理化を図った油入電気
機器を提供することにある。The present invention was proposed in order to solve the problems of the prior art as described above, and its purpose is to reduce the installation space and to provide oil-filled electrical equipment with rationalization of ancillary equipment. It is about providing.
［発明の構成］
（課題を解決するための手段）
本発明は、電力系統に接続される単相もしくは３相の油
入電気機器を、不燃性気体を封入したタンク内に設置し
、主回路引出し部をガス絶縁化したことを特徴とするも
のである。[Structure of the Invention] (Means for Solving the Problems) The present invention provides for installing single-phase or three-phase oil-filled electrical equipment connected to an electric power system in a tank filled with nonflammable gas, and The feature is that the drawer part is gas insulated.
（作用）
上記の様な構成を有する本発明の油入電気機器によれば
、油入電気機器相互間の離隔距離を従来に比べて大幅に
低減できるため、油入電気機器の設置スペースを低減で
きると共に、開閉設備と油入電気機器を接続するケーブ
ルやケーブル洞道もしくはガス絶縁母線の短縮化を図る
ことができる。(Function) According to the oil-filled electrical equipment of the present invention having the above-described configuration, the separation distance between the oil-filled electrical equipment can be significantly reduced compared to the conventional one, so the installation space for the oil-filled electrical equipment can be reduced. In addition, it is possible to shorten the length of cables, cable tunnels, or gas-insulated busbars that connect switching equipment and oil-filled electrical equipment.
（実施例）
以下、本発明の一実施例を第１図及び第２図に基づいて
具体的に説明する。なお、第５図及び第６図に示した従
来型と同一の部材には同一の符号を付して、説明を省略
する。(Example) Hereinafter, an example of the present invention will be specifically described based on FIGS. 1 and 2. Note that the same members as those of the conventional type shown in FIGS. 5 and 6 are designated by the same reference numerals, and explanations thereof will be omitted.
本実施例においては、第１図に示した様に、単相油入変
圧器１が防音タンクとして兼用できるタンク２中に設置
され、そのタンク２の内部には、窒素（Ｎ２）やＳ Ｆ
ｂガスなどの不燃性気体７が封入され、防火対策が施
されている。また、主回路引出し部はガス絶縁母線４を
介して引出され、ケーブル用ガス絶縁接続箱３でケーブ
ルに接続されるか、もしくはガス絶縁母線４で接続され
ており、充電気中露出部がない構造となっている。また
、冷却器５は単相油入変圧器１とは油配管８を介して接
続され、冷却器パンクロが構成されている。さらに、単
相油入変圧器１のコンサベータ１０もコンサベータ用タ
ンク１１内に設置され、内部に不燃性気体７が封入され
ている。In this embodiment, as shown in FIG. 1, a single-phase oil-immersed transformer 1 is installed in a tank 2 that can also be used as a soundproof tank, and inside the tank 2, nitrogen (N2) and SF
A non-flammable gas 7 such as B gas is sealed, and fire prevention measures are taken. In addition, the main circuit draw-out section is drawn out via the gas-insulated busbar 4 and is connected to the cable with the gas-insulated cable junction box 3 or connected with the gas-insulated busbar 4, so that there is no charging exposed part. It has a structure. Further, the cooler 5 is connected to the single-phase oil-immersed transformer 1 via an oil pipe 8, forming a cooler panchromator. Furthermore, the conservator 10 of the single-phase oil-immersed transformer 1 is also installed in the conservator tank 11, and a nonflammable gas 7 is sealed inside.
この様な構成を有する本実施例の油入変圧器においては
、それらを用いて３粗油人変圧器を構成する場合であっ
ても、各単相油入変圧器１ａ、１ｂ、ｌｃはそれぞれタ
ンク２中に設置され、そのタンク２の内部には不燃性気
体７が封入されているため、防火対策上安全性が高い。In the oil-immersed transformer of this embodiment having such a configuration, each single-phase oil-immersed transformer 1a, 1b, lc is Since it is installed in a tank 2 and a nonflammable gas 7 is sealed inside the tank 2, it is highly safe in terms of fire prevention measures.
また、気中絶縁離隔距離や防火対策上の離隔距離が不要
となるため、第２図に示した様に、隣接配置する単相油
入変圧器１ａ、ｌｂ、ｌｃ間に離隔距離を設ける必要が
なく、油入変圧器相互間の距離を短縮できるので、油入
変圧器の両端部間の長さはＬ２となり、その設置スペー
スを大幅に低減することができる。また、従来は各単相
油入変圧器の側部にそれぞれ別個に配設されていた冷却
器５を一箇所にまとめて冷却器パンクロを構成すること
ができるため、設置スペースの低減に寄与するだけでな
く、その保守・点検作業の効率化も図れる。さらに、油
入変圧器の主回路端子引出し部と接続されるケ−プルや
ガス母線長を短くすることができ、ケブル洞道等の付帯
設備の合理化が可能となる。In addition, as air insulation separation distances and fire prevention distances are not required, it is necessary to provide separation distances between adjacent single-phase oil-immersed transformers 1a, lb, and lc, as shown in Figure 2. Since the distance between the oil-immersed transformers can be shortened, the length between both ends of the oil-immersed transformer becomes L2, and the installation space can be significantly reduced. In addition, the coolers 5, which were conventionally installed separately on the side of each single-phase oil-immersed transformer, can be combined in one place to form a cooler panchromator, which contributes to a reduction in installation space. Not only that, but the efficiency of maintenance and inspection work can also be improved. Furthermore, the length of cables and gas busbars connected to the main circuit terminal draw-out portion of the oil-immersed transformer can be shortened, and incidental equipment such as cable tunnels can be rationalized.
なお、本発明は上述した実施例に限定されるものではな
く、冷却器の配置構成は、設置スペースや油入電気機器
の配置に応じて適宜変更可能であり、例えば、第３図に
示した様に、冷却器パンクロを油入変圧器の長手方向側
部に配設しても良い。Note that the present invention is not limited to the embodiments described above, and the arrangement of the cooler can be changed as appropriate depending on the installation space and the arrangement of oil-filled electrical equipment. Similarly, the cooler panchromator may be disposed on the longitudinal side of the oil-immersed transformer.
また、主回路引出し部、も上記の実施例に限定されるも
のでなく、冷却器や油入電気機器の配置に応じて適宜変
更することができる。また、第４図に示した様に、３用
油人電気機器を不燃性気体を封入したタンク内に設置し
、これらを複数台配置する場合も、隣接する各３用油人
電気機器間の距離りを、従来に比べて大幅に低減するこ
とが可能となる。さらに、油入電気機器を収納したタン
ク内に不燃性気体を封入するため、日常の点検に必要な
各種メータや補機等の付属品９を、第１図乃至第４図に
示した様に、タンク２の外に置くこともできる。Further, the main circuit draw-out portion is not limited to the above-mentioned embodiment, and can be changed as appropriate depending on the arrangement of the cooler and the oil-filled electrical equipment. In addition, as shown in Figure 4, even when multiple 3-purpose electric appliances are installed in a tank filled with nonflammable gas, there is a gap between adjacent 3-purpose electric appliances. It becomes possible to significantly reduce the distance compared to the conventional method. Furthermore, in order to seal nonflammable gas into the tank housing the oil-filled electrical equipment, accessories 9 such as various meters and auxiliary equipment necessary for daily inspection are installed as shown in Figures 1 to 4. , it can also be placed outside tank 2.
［発明の効果］
以上述べた様に、本発明によれば、電力系統に接続され
る単相もしくは３相の油入電気機器を、不燃性気体を封
入したタンク内に設置し、主回路引出し部をガス絶縁化
することによって、設置スペースの低減を可能とし、ま
た、付帯設備の合理化を図った油入電気機器を提供する
ことができる。[Effects of the Invention] As described above, according to the present invention, single-phase or three-phase oil-filled electrical equipment connected to the power system is installed in a tank filled with nonflammable gas, and the main circuit is drawn out. By insulating the parts with gas, it is possible to reduce the installation space and provide oil-filled electrical equipment with rationalization of incidental equipment.
第１図は本発明の単相油入電気機器の一実施例を示す断
面図、第２図は本発明の単相油入電気機器を並置して３
用油人電気機器を構成した場合の平面図、第３図は本発
明の他の実施例を示す平面図、第４図は本発明を３用油
人電気機器に適用した場合の平面図、第５図は従来の油
入電気機器の側面図、第６図は従来の単相油入電気機器
を並置して３用油人電気機器を構成した場合の平面図で
ある。
１・・・単相油入電気機器、２・・・タンク、３・・・
ケール用油絶縁接続箱、４・・・ガス絶縁母線、５冷却
器、６・・・冷却器バンク、７・・・不燃性気体、８・
・・油配管、９・・・付属品、１０・・・コンサベータ
、１１・・・コンサベータ用タンク、１２・・・３用油
人電気機器、１３・・・ケーブル用油絶縁接続箱、１４
・・・油ダクト、１６・・・気中ブッシング、１７・・
・主回路引込み架線、１８・・・変圧器離隔距離、１９
・・・防音タンク。FIG. 1 is a sectional view showing an embodiment of the single-phase oil-filled electrical equipment of the present invention, and FIG.
3 is a plan view showing another embodiment of the present invention; FIG. 4 is a plan view when the present invention is applied to 3-purpose electric equipment; FIG. 5 is a side view of a conventional oil-filled electrical device, and FIG. 6 is a plan view of a three-purpose oil-filled electrical device constructed by arranging conventional single-phase oil-filled electrical devices side by side. 1... Single-phase oil-filled electrical equipment, 2... Tank, 3...
Oil insulated junction box for kale, 4... Gas insulated bus bar, 5 Cooler, 6... Cooler bank, 7... Nonflammable gas, 8...
... Oil piping, 9... Accessories, 10... Conservator, 11... Tank for conservator, 12... Oil-insulated electrical equipment for 3, 13... Oil insulated connection box for cable, 14
...Oil duct, 16...Pneumatic bushing, 17...
・Main circuit lead-in overhead wire, 18...Transformer separation distance, 19
...Soundproof tank.
Claims (1)
器を、不燃性気体を封入したタンク内に設置し、主回路
引出し部をガス絶縁化したことを特徴とする油入電気機
器。An oil-filled electrical device that is connected to an electric power system and is installed in a tank filled with nonflammable gas, and the main circuit lead-out part is gas-insulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18791290A JPH0475307A (en) | 1990-07-18 | 1990-07-18 | Oil-filled electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18791290A JPH0475307A (en) | 1990-07-18 | 1990-07-18 | Oil-filled electric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0475307A true JPH0475307A (en) | 1992-03-10 |
Family
ID=16214381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18791290A Pending JPH0475307A (en) | 1990-07-18 | 1990-07-18 | Oil-filled electric device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0475307A (en) |
-
1990
- 1990-07-18 JP JP18791290A patent/JPH0475307A/en active Pending
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