JP2004357402A - Gas insulated switchgear - Google Patents

Gas insulated switchgear Download PDF

Info

Publication number
JP2004357402A
JP2004357402A JP2003151771A JP2003151771A JP2004357402A JP 2004357402 A JP2004357402 A JP 2004357402A JP 2003151771 A JP2003151771 A JP 2003151771A JP 2003151771 A JP2003151771 A JP 2003151771A JP 2004357402 A JP2004357402 A JP 2004357402A
Authority
JP
Japan
Prior art keywords
cable
insulated switchgear
power receiving
gas insulated
gas
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
JP2003151771A
Other languages
Japanese (ja)
Inventor
Shoji Omori
荘司 大森
Koichi Nakano
幸一 中野
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2003151771A priority Critical patent/JP2004357402A/en
Publication of JP2004357402A publication Critical patent/JP2004357402A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Gas-Insulated Switchgears (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gas insulated switchgear in which a shut-out period of a cable is short at inspecting/repairing a power receiving shielding device, for safe inspection/repair of the power receiving shielding device. <P>SOLUTION: The gas insulated switchgear is provided with a cable temporary placement facility to which a cable is attached at repairing/inspecting a power receiving shielding device which is housed in a tank in which an insulating gas is sealed up and receives power supply through the cable. A cable shut-off period is significantly reduced because the cable shut-off period is only for attaching/detaching operation of a cable before and after the start of operation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明はガス絶縁開閉装置に係り、特に、電力会社あるいは発電所等からケーブルによって電力の供給を受けている民需用に好適なガス絶縁開閉装置に関する。
【0002】
【従来の技術】
一般に、民需用のガス絶縁開閉装置において電力の供給を受けているケーブルは、電力供給側の財産であり、この系統には、多数の需要家が繋がっている。このため、一般需要家の突発的な点検・修理によって長時間の停電がとれない場合が多い。
【0003】
【特許文献1】
特開平5−111113号公報
【0004】
【発明が解決しようとする課題】
特に、SF ガスが封入されているタンク内に収納されている受電用遮断器を点検・修理する際に、受電用遮断器と受電用断路器のガス区画が別になっている場合には、ケーブルの停止無しに点検・修理を実施できるが、コストダウン及び機器の縮小化のニーズに対応して、受電用遮断器と受電用断路器が同一のガス区画内に収納されていると受電用遮断器の点検・修理のためにケーブルの停止が必要となり、点検・修理の完了までにケーブルが長時間停止されてしまう問題があった。
【0005】
本発明は上述の点に鑑みなされたもので、その目的とするところは、受電用遮断器の点検・修理の際にケーブルの停止期間を短くし、安全に受電用遮断器の点検・修理が実施できるガス絶縁開閉装置を提供するにある。
【0006】
【課題を解決するための手段】
本発明のガス絶縁開閉装置は、上記目的を達成するために、絶縁ガスを封入したタンク内に収納され、ケーブルを介して電力の供給を受けている受電用遮断器の修理・点検時に前記ケーブルが取付けられるケーブル仮置き設備を備えていることを特徴とする。
【0007】
【発明の実施の形態】
以下、図示した実施例に基づいて本発明のガス絶縁開閉装置を説明する。
【0008】
図1,図2、及び図3には本発明の一実施例であるガス絶縁開閉装置が示されている。該図において、1は絶縁ガスであるSF ガスが封入されているタンクで、このタンク1内には通電導体2,受電用遮断器3,受電用断路器4が収納されると共に、通電導体2を支持する複数の絶縁スペーサ5でタンク1内を複数にガス区画している。また、受電用遮断器3と受電用断路器4が同一のガス区画内に設置されており、これらに電力会社あるいは発電所等からの電力がケーブルヘッド部6に接続されたケーブル7を介して供給されている。
【0009】
そして、本実施例では、上述したケーブルヘッド部6にエポキシモールド等の絶縁物からなるケーブル仮置き設備8をケーブルヘッド部6と一体に設けている。
【0010】
このような構成において、受電用遮断器3の点検・修理の際には、先ず一旦ケーブル7をケーブルヘッド部6から取り外し、この取り外したケーブル7をケーブル仮置き設備8に電圧課電状態で取付けることで仮復旧する。この状態で受電用遮断器3の点検・修理を行い、受電用遮断器3の点検・修理が終了した時点でケーブル仮置き設備8からケーブル7を取り外し、取り外したケーブル7を正規の主回路のケーブルヘッド部6に取付けることで正規の復旧が可能となる。
【0011】
従って、上述した実施例では、受電用遮断器の点検・修理時に作業開始前後のケーブルの着脱作業時間のみのケーブル停止時間となり、作業開始から終了までケーブル停止が必要であった従来と比較して、ケーブル停止時間が大幅に短縮できるし、安全に作業が行える。
【0012】
次に、本発明の他の実施例を図4,図5、及び図6を用いて説明する。該図に示す実施例が上述した実施例と異なる点は、ケーブルヘッド部6の近傍に固体,液体、或いは気体からなる絶縁媒体が封入された容器9を設けてケーブル仮置き設備としている点である。その他の構成は上述した実施例と同様である。容器9へのガス封入は、通常運転時からガスを封入しておく方法と緊急時に封入する方法の何れでも対応できる。
【0013】
本実施例の構成でも、ケーブルヘッド部6に設けた上述の例と同様に受電用遮断器3の点検・修理時に一旦ケーブル7を取り外し、ケーブル仮置き設備である容器9に取付けてケーブル7を仮復旧し、作業終了時に再度容器9から正規の主回路にケーブル7を取付けることで正規の復旧が可能となる。
【0014】
このような本実施例であっても、その効果は上述した実施例と同様である。尚、本実施例では、ケーブル仮置き設備である容器内へ固体,液体、或いは気体からなる絶縁媒体を封入した例について説明したが、エポキシモールドで対応することも可能である。
【0015】
【発明の効果】
以上説明した本発明のガス絶縁開閉装置によれば、受電用遮断器の点検・修理の際にケーブルの停止期間を短くし、安全に受電用遮断器の点検・修理が実施できるので、此の種ガス絶縁開閉装置には有効である。
【図面の簡単な説明】
【図1】本発明のガス絶縁開閉装置の一実施例を示すガス区画図である。
【図2】本発明のガス絶縁開閉装置の一実施例を示す断面図である。
【図3】図2の側面図である。
【図4】本発明のガス絶縁開閉装置の他の実施例を示すガス区画図である。
【図5】本発明のガス絶縁開閉装置の他の実施例を示す断面図である。
【図6】図5の側面図である。
【符号の説明】
1…タンク、2…通電導体、3…受電用遮断器、4…受電用断路器、5…絶縁スペーサ、6…ケーブルヘッド部、7…ケーブル、8…ケーブル仮置き設備、9…容器。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a gas insulated switchgear, and more particularly, to a gas insulated switchgear suitable for civil use receiving power from a power company or a power plant by a cable.
[0002]
[Prior art]
In general, a cable receiving power supply in a gas insulated switchgear for private use is a property on the power supply side, and a large number of customers are connected to this system. For this reason, it is often the case that a long-term power outage cannot be taken due to sudden inspection and repair by general consumers.
[0003]
[Patent Document 1]
JP-A-5-111113
[Problems to be solved by the invention]
In particular, when checking and repairing the power receiving circuit breaker housed in the tank in which SF 6 gas is sealed, when the power receiving circuit breaker and the power receiving disconnecting switch have separate gas compartments, Inspection and repair can be performed without stopping the cable. However, in response to needs for cost reduction and equipment reduction, if the power receiving circuit breaker and power receiving disconnector are housed in the same gas compartment, The cable must be stopped for inspection and repair of the circuit breaker, and there is a problem that the cable is stopped for a long time until the inspection and repair is completed.
[0005]
The present invention has been made in view of the above points, and an object thereof is to shorten a cable stop period during inspection and repair of a power receiving circuit breaker, thereby enabling safe inspection and repair of the power receiving circuit breaker. It is to provide a gas insulated switchgear which can be implemented.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the gas insulated switchgear of the present invention is housed in a tank filled with insulating gas, and the cable is used for repair and inspection of a power receiving circuit breaker receiving power supply through a cable. Is provided with a cable temporary storage facility to which the cable is attached.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a gas-insulated switchgear of the present invention will be described based on the illustrated embodiment.
[0008]
FIGS. 1, 2 and 3 show a gas-insulated switchgear according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a tank in which SF 6 gas, which is an insulating gas, is sealed. In the tank 1, a current-carrying conductor 2, a power receiving circuit breaker 3, and a power-receiving disconnector 4 are housed. The inside of the tank 1 is divided into a plurality of gas sections by a plurality of insulating spacers 5 that support the section 2. In addition, the power receiving circuit breaker 3 and the power receiving disconnecting switch 4 are installed in the same gas compartment, and power from a power company or a power plant is connected to the power receiving circuit breaker 3 and the power generating station via a cable 7 connected to the cable head unit 6. Supplied.
[0009]
In the present embodiment, the cable head section 6 is provided with a cable temporary storage facility 8 made of an insulating material such as an epoxy mold, integrally with the cable head section 6.
[0010]
In such a configuration, when the power receiving circuit breaker 3 is inspected or repaired, the cable 7 is first detached from the cable head portion 6 and the detached cable 7 is attached to the cable temporary storage facility 8 in a voltage imposed state. It will be temporarily restored. In this state, the power receiving circuit breaker 3 is inspected and repaired, and when the inspection and repair of the power receiving circuit breaker 3 is completed, the cable 7 is removed from the cable temporary laying facility 8, and the removed cable 7 is connected to the regular main circuit. By attaching the cable to the cable head 6, normal restoration is possible.
[0011]
Therefore, in the above-described embodiment, the cable stop time of only the cable attaching / detaching operation time before and after the start of the work at the time of inspection and repair of the power receiving circuit breaker is compared with the conventional case where the cable stop was necessary from the start to the end of the work. In addition, the cable stop time can be greatly reduced and work can be performed safely.
[0012]
Next, another embodiment of the present invention will be described with reference to FIGS. 4, 5, and 6. FIG. The embodiment shown in this figure differs from the above-described embodiment in that a container 9 in which an insulating medium made of a solid, liquid, or gas is provided in the vicinity of the cable head portion 6 to provide a temporary cable installation facility. is there. Other configurations are the same as those of the above-described embodiment. The gas can be charged into the container 9 by either a method of charging gas from a normal operation or a method of charging gas in an emergency.
[0013]
Also in the configuration of the present embodiment, the cable 7 is once removed at the time of inspection and repair of the power receiving circuit breaker 3 and attached to the container 9 serving as a cable temporary storage facility, similarly to the above-described example provided in the cable head section 6. The temporary restoration is performed, and the regular restoration can be performed by attaching the cable 7 from the container 9 to the regular main circuit again at the end of the work.
[0014]
Even in this embodiment, the effect is the same as that of the above-described embodiment. In the present embodiment, an example is described in which an insulating medium made of a solid, liquid, or gas is sealed in a container serving as a temporary cable installation facility, but an epoxy mold may be used.
[0015]
【The invention's effect】
According to the gas insulated switchgear of the present invention described above, the inspection and repair of the power receiving circuit breaker can be shortened, and the inspection and repair of the power receiving circuit breaker can be performed safely. It is effective for seed gas insulated switchgear.
[Brief description of the drawings]
FIG. 1 is a gas partition diagram showing one embodiment of a gas insulated switchgear of the present invention.
FIG. 2 is a sectional view showing one embodiment of the gas insulated switchgear of the present invention.
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a gas partition diagram showing another embodiment of the gas insulated switchgear of the present invention.
FIG. 5 is a sectional view showing another embodiment of the gas insulated switchgear of the present invention.
FIG. 6 is a side view of FIG. 5;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Tank, 2 ... Conducting conductor, 3 ... Power receiving circuit breaker, 4 ... Power receiving disconnecting switch, 5 ... Insulating spacer, 6 ... Cable head part, 7 ... Cable, 8 ... Cable temporary installation equipment, 9 ... Container.

Claims (5)

絶縁ガスを封入したタンク内に受電用遮断器及び受電用断路器を収納してなり、これらがケーブルを介して電力の供給を受けているガス絶縁開閉装置において、
前記受電用遮断器の修理・点検時に前記ケーブルが取付けられるケーブル仮置き設備を備えていることを特徴とするガス絶縁開閉装置。
In a gas insulated switchgear, in which a power receiving circuit breaker and a power receiving disconnecting switch are housed in a tank filled with insulating gas, and these are receiving power supply via a cable,
A gas insulated switchgear comprising a cable temporary installation facility to which the cable is attached when the power receiving circuit breaker is repaired or inspected.
前記ケーブル仮置き設備に、前記ケーブルが電圧課電状態で取付けられていることを特徴とする請求項1記載のガス絶縁開閉装置。The gas insulated switchgear according to claim 1, wherein the cable is attached to the temporary cable installation facility in a voltage imposed state. 前記受電用遮断器及び受電用断路器は、前記タンクの同一ガス区画内に収納されていることを特徴とする請求項1記載のガス絶縁開閉装置。The gas insulated switchgear according to claim 1, wherein the power receiving circuit breaker and the power receiving disconnecting switch are housed in the same gas compartment of the tank. 前記ケーブル仮置き設備は、絶縁物で構成されていることを特徴とする請求項1又は2記載のガス絶縁開閉装置。3. The gas insulated switchgear according to claim 1, wherein the temporary cable installation equipment is made of an insulating material. 前記ケーブル仮置き設備は、絶縁媒体を密封した容器で構成されていることを特徴とする請求項1又は2記載のガス絶縁開閉装置。3. The gas insulated switchgear according to claim 1, wherein the cable temporary installation equipment is configured by a container in which an insulating medium is sealed. 4.
JP2003151771A 2003-05-29 2003-05-29 Gas insulated switchgear Pending JP2004357402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003151771A JP2004357402A (en) 2003-05-29 2003-05-29 Gas insulated switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003151771A JP2004357402A (en) 2003-05-29 2003-05-29 Gas insulated switchgear

Publications (1)

Publication Number Publication Date
JP2004357402A true JP2004357402A (en) 2004-12-16

Family

ID=34047167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003151771A Pending JP2004357402A (en) 2003-05-29 2003-05-29 Gas insulated switchgear

Country Status (1)

Country Link
JP (1) JP2004357402A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101098486B1 (en) 2009-01-30 2011-12-26 가부시키가이샤 히타치세이사쿠쇼 Vacuum insulated switch gear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101098486B1 (en) 2009-01-30 2011-12-26 가부시키가이샤 히타치세이사쿠쇼 Vacuum insulated switch gear

Similar Documents

Publication Publication Date Title
KR20100054948A (en) By-pass construction method for replacement of pole-top transformer (1phase/3phase) using 1phase portable transformer
Harker Power system commissioning and maintenance practice
JP2011234593A (en) Transformer for gas insulated instrument
CN106885959B (en) Test method for replacing short-circuit copper bar by grounding knife switch in power plant electric main start test
JP2004357402A (en) Gas insulated switchgear
CA2868111C (en) Method for design of subsea electrical substation and power distribution system
KR100757730B1 (en) The no blackout method for underground cable
CN210514508U (en) GIS cable equipment
CN207939070U (en) Common voltage parallel device
KR100654773B1 (en) Power receiving and transforming device with power-fuse insulated by gas
CN110346710B (en) Ring main unit outgoing line starting method for avoiding customer power failure
JPH0217808A (en) Gas insulated switchgear with single phase auxiliary bus bar
KR101300752B1 (en) Low voltage distributing board system and power supply controller on low voltage distributing board
CN104020325A (en) High-voltage test shielding cover for 10kV ring main unit
KR101711705B1 (en) Apparatus and method for controlling of ground switch
Mane et al. DECENTRALIZED CONTROL THROUGH SELF-HEALING GRIDS
KR101231765B1 (en) Gas insulated switch-gear
JP5662229B2 (en) Transformer device for movement
CN102879708B (en) Quick polarity testing method of 110kV gas insulated switchgear (GIS) of transformer substation
Bolin Gas-insulated substations
Peters et al. Modelling and simulation of degraded and loss of voltage protection scheme for class 1E bus of a nuclear power plant
KR101008234B1 (en) Receive and change electricity equipment for special high-tension is ground formation
JP2004336892A (en) Sealed gas-insulated switchgear
KR101657104B1 (en) Unit and System for Displaying Main Bus State of Gas Insulated Switchgear
Pandit et al. High Voltage Mixed technology (Hybrid) switchgear (Mts)-ideal solution for renovation and Modernisation of substations