JPH023365B2 - - Google Patents
Info
- Publication number
- JPH023365B2 JPH023365B2 JP55110629A JP11062980A JPH023365B2 JP H023365 B2 JPH023365 B2 JP H023365B2 JP 55110629 A JP55110629 A JP 55110629A JP 11062980 A JP11062980 A JP 11062980A JP H023365 B2 JPH023365 B2 JP H023365B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- grounding wire
- current
- grounding
- wire
- 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.)
- Expired - Lifetime
Links
Landscapes
- Gas-Insulated Switchgears (AREA)
Description
【発明の詳細な説明】
本発明はガス絶縁電気装置の接地線電流低減に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to ground wire current reduction in gas insulated electrical equipment.
従来のガス絶縁電気装置を第１図に示す。１〜
５は密閉金属タンクであつて、内部には通電導体
が収納される共にSF6ガスなどの絶縁ガスが封入
されており、断路器タンク１、ブツシングタンク
２、断路器タンク３は電気的に接続しており、そ
れぞれ接地線６〜８が真下に下ろされ、地中に埋
設された接地網を構成している主接地線１１と接
続している。又、遮断器タンク５と、変流器タン
ク４は断路器タンク３と絶縁している。そして遮
断器タンク５から接地線９，１０により主接地線
１１に接続している。なお、タンクは脚、架台、
ベース等で支持固定されている。また、接地網は
例えば変電所単位毎に設けられ、主接地線は各相
毎のタンク配列長手方向に沿つて並設される。 A conventional gas insulated electrical device is shown in FIG. 1~
Reference numeral 5 denotes a sealed metal tank, which houses a current-carrying conductor and is filled with an insulating gas such as SF 6 gas, and disconnector tank 1, bushing tank 2, and disconnector tank 3 are Ground wires 6 to 8 are lowered directly below and connected to a main ground wire 11 constituting a ground network buried underground. Further, the circuit breaker tank 5 and the current transformer tank 4 are insulated from the disconnector tank 3. The circuit breaker tank 5 is connected to a main grounding line 11 via grounding lines 9 and 10. In addition, the tank has legs, a stand,
It is supported and fixed by a base etc. Further, the grounding network is provided for each substation, for example, and the main grounding wires are arranged in parallel along the longitudinal direction of the tank arrangement for each phase.
このような構造では、各タンク内の通電導体に
電流が流れた場合、遮断器タンク５―接地線９―
主接地線１１―接地線１０の回路に誘導電流i1、
断路器タンク１―ブツシングタンク２―断路器タ
ンク３―接地線８―主接地線１１―接地線６の回
路に誘導電流i2、及びブツシングタンク２―断路
器タンク３―接地線８―主接地線１１―接地線７
の回路に誘導電流i3が流れる。この場合、タンク
を支持固定している脚にも循環電流が流れる。こ
れら短絡回路の面積が大きいため、通電導体（例
えば母体）電流により発生する漏洩磁束により、
接地線を含む短絡回路に大きな誘導電流が流れ
る。 In such a structure, when current flows through the current-carrying conductor in each tank, the circuit breaker tank 5 - grounding wire 9 -
An induced current i 1 in the main grounding wire 11-grounding wire 10 circuit,
Induced current i 2 in the circuit of disconnector tank 1 - disconnector tank 2 - disconnector tank 3 - grounding wire 8 - main grounding wire 11 - grounding wire 6, and bushing tank 2 - disconnector tank 3 - grounding wire 8 - Main ground wire 11-ground wire 7
An induced current i3 flows in the circuit. In this case, a circulating current also flows through the legs supporting and fixing the tank. Because the area of these short circuits is large, the leakage magnetic flux generated by the current in the current-carrying conductor (e.g., parent body) causes
Large induced currents flow in short circuits that include the ground wire.
したがつて接地線の過熱、溶断の原因となり、
又露出接地線の過熱により、安全上危険である。
又タンクに誘導電流が流れるためタンク及び通電
導体（例えば母線）の温度上昇が高くなる。 This may cause the grounding wire to overheat and melt.
Also, overheating of the exposed ground wire poses a safety hazard.
Furthermore, since an induced current flows through the tank, the temperature of the tank and the current-carrying conductor (for example, the bus bar) increases.
本発明は接地線を含む回路が通電導体の電流に
よる漏洩磁束を貫通する量を少なくするため、そ
の面積を少なくし、上記欠点を除去しようとする
ものである。 The present invention aims to eliminate the above-mentioned drawbacks by reducing the area of the circuit including the ground wire in order to reduce the amount of leakage magnetic flux caused by the current of the current-carrying conductor passing through the circuit.
以下、本発明の一実施例を図にもとづいて説明
する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第２図は本発明の一実施例であるガス絶縁電気
装置の斜視図を示す。図中、第１図と同符号は同
一物を示しているが、断路器タンク１，３の接地
線６，８及びブツシングタンクの接地線７はまず
一箇所に集め、それから主接地線１１に配線し、
接地線６，７，８は互いに電気的に接触しないよ
うにする。同様に遮断器タンク５の接地線９，１
０は一箇所に集め主接地線１１に接続する。 FIG. 2 shows a perspective view of a gas insulated electrical device which is an embodiment of the present invention. In the figure, the same reference numerals as in FIG. Wire to
The grounding wires 6, 7, and 8 should not be in electrical contact with each other. Similarly, the grounding wires 9, 1 of the circuit breaker tank 5
0 are collected in one place and connected to the main grounding wire 11.
このようにすることにより、接地線を含む回路
の面積が減少し、通電導体電流による漏洩磁束の
貫通量が減少し、誘導電流i1，i2，i3が減少する。
このため、接地線の過熱、溶断を防止出来、露出
接地線の過熱を防止出来安全上良好となる。又、
タンクに流れる誘導電流が少なくなり、タンク、
通電導体の温度上昇が低減出来、タンクの小形化
が可能となる。 By doing so, the area of the circuit including the grounding wire is reduced, the amount of leakage magnetic flux penetrating by the current-carrying conductor current is reduced, and the induced currents i 1 , i 2 , and i 3 are reduced.
Therefore, overheating and melting of the ground wire can be prevented, and overheating of the exposed ground wire can be prevented, resulting in good safety. or,
The induced current flowing into the tank decreases, and the tank,
The temperature rise of the current-carrying conductor can be reduced, and the tank can be made smaller.
なお、本発明は実施例のみならずガス絶縁母線
やガス絶縁開閉装置などに適用出来る。 Note that the present invention can be applied not only to the embodiments but also to gas insulated busbars, gas insulated switchgears, and the like.
第１図は従来のガス絶縁電気装置を示す斜視
図、第２図は本発明の一実施例であるガス絶縁電
気装置を示す斜視図である。なお、図中同一符号
は同一もしくは相当部分を示す。
図中、１…断路器タンク、２…ブツシングタン
ク、３…断路器タンク、４…変換器タンク、５…
遮断器タンク、６〜１０…接地線、１１…主接地
線、i1，i2，i3…誘導電流。
FIG. 1 is a perspective view showing a conventional gas insulated electrical device, and FIG. 2 is a perspective view showing a gas insulated electrical device which is an embodiment of the present invention. Note that the same reference numerals in the figures indicate the same or corresponding parts. In the figure, 1...Disconnector tank, 2...Butching tank, 3...Disconnector tank, 4...Converter tank, 5...
Circuit breaker tank, 6 to 10...Grounding wire, 11...Main grounding wire, i1 , i2 , i3 ...Induced current.
Claims (1)
は電気的に接続された複数個のタンクに対し、主
接地線が該タンクに並設され且つ地中に埋設して
いる接地網を設け、上記タンクを所定タンク単位
毎に２個所以上において接地線にて上記主接地線
に接続してなるガス絶縁電気装置において、上記
接地線を上記主接地線に接続する間、上記所定タ
ンク単位毎の接地線を電気的に互いに接触しない
程度に近接して配設したことを特徴とするガス絶
縁電気装置。1. For one tank or a plurality of electrically connected tanks containing insulating gas and current-carrying conductors, a grounding network with a main grounding wire running parallel to the tank and buried underground is provided, and the tank In a gas insulated electrical device, the grounding wire is connected to the main grounding wire at two or more locations for each predetermined tank unit, while the grounding wire is connected to the main grounding wire at two or more locations for each predetermined tank unit. A gas-insulated electrical device characterized in that the two are disposed close to each other to the extent that they do not electrically contact each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11062980A JPS5736506A (en) | 1980-08-12 | 1980-08-12 | GASUZETSUENDENKISOCHI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11062980A JPS5736506A (en) | 1980-08-12 | 1980-08-12 | GASUZETSUENDENKISOCHI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5736506A JPS5736506A (en) | 1982-02-27 |
| JPH023365B2 true JPH023365B2 (en) | 1990-01-23 |
Family
ID=14540604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11062980A Granted JPS5736506A (en) | 1980-08-12 | 1980-08-12 | GASUZETSUENDENKISOCHI |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5736506A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61125548A (en) * | 1984-11-20 | 1986-06-13 | 松下電器産業株式会社 | Method of controlling revolution of blower for cold and heataccumulating air conditioner |
| JPH0684851B2 (en) * | 1985-09-17 | 1994-10-26 | 中部電力株式会社 | Operating method of air conditioner using heat pump |
| JPS62196563A (en) * | 1986-02-25 | 1987-08-29 | 株式会社東芝 | Defrostation operation method of refrigeration cycle |
| JPH0656274B2 (en) * | 1986-03-27 | 1994-07-27 | 株式会社東芝 | Refrigeration cycle equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5431538A (en) * | 1977-08-16 | 1979-03-08 | Toshiba Corp | Switchgear insulated by gas |
-
1980
- 1980-08-12 JP JP11062980A patent/JPS5736506A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5736506A (en) | 1982-02-27 |
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