JP6143525B2 - Power distribution facilities - Google Patents

Power distribution facilities Download PDF

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JP6143525B2
JP6143525B2 JP2013081842A JP2013081842A JP6143525B2 JP 6143525 B2 JP6143525 B2 JP 6143525B2 JP 2013081842 A JP2013081842 A JP 2013081842A JP 2013081842 A JP2013081842 A JP 2013081842A JP 6143525 B2 JP6143525 B2 JP 6143525B2
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power receiving
switch gear
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power
disconnector
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JP2014204650A (en
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慎太郎 黒明
慎太郎 黒明
英二 森藤
英二 森藤
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Mitsubishi Electric Corp
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Description

この発明は、受配電設備に係り、特に、第１の受電系統と第２の受電系統から受電し、第１の負荷系統と第２の負荷系統に給電する受配電設備に関するものである。   The present invention relates to a power receiving / distributing facility, and more particularly to a power receiving / distributing facility that receives power from a first power receiving system and a second power receiving system and supplies power to the first load system and the second load system.

従来、例えば特開平７−３９０２５号公報（特許文献１）においては、一対の特別高圧受電開閉装置の間にＰＣＴ盤が設けられ、前記特別高圧受電開閉装置に接続された降圧変圧器と、この降圧変圧器の二次側に接続された高圧配電開閉装置が設けられた集合形受変電設備が開示されている。この特許文献１に開示された集合形受変電設備は、特別高圧受電開閉装置の前端片側に所内交流電源装置を設け、特別高圧受電開閉装置の前端他側に所内直流電源装置を設け、特別高圧受電開閉装置、ＰＣＴ盤、高圧配電開閉装置及び所内交流電源装置並びに所内直流電源装置を載置する基礎ベースの内側に低圧配線箱を形成するもので、これにより各箱体を前面から保守・点検し、制御ケーブル用のピットも不要としたのである。そして、この構成を採用することにより、据付面積を減らし、据付工期も短縮することのできる集合形受変電設備が得られる特徴を有している。   Conventionally, for example, in Japanese Patent Laid-Open No. 7-39025 (Patent Document 1), a step-down transformer in which a PCT panel is provided between a pair of special high-voltage power receiving switchgear and connected to the special high-voltage power receiving switchgear, A collective power receiving / transforming facility provided with a high voltage distribution switchgear connected to the secondary side of the step-down transformer is disclosed. The collective power receiving and transforming facility disclosed in Patent Document 1 is provided with an in-house AC power supply device on one side of the front end of the special high-voltage power receiving switchgear and an in-house DC power supply device on the other side of the front end of the special high-voltage power receiving switchgear. A low-voltage wiring box is formed inside the foundation base on which the power receiving switchgear, PCT panel, high-voltage distribution switchgear, in-house AC power supply device, and in-house DC power supply device are placed. This allows maintenance and inspection of each box from the front. However, the pit for the control cable is also unnecessary. By adopting this configuration, it is possible to obtain a collective power receiving / transforming facility that can reduce the installation area and shorten the installation period.

特開平７−３９０２５号公報（段落００３５、及び図３）JP 7-39025 A (paragraph 0035 and FIG. 3)

しかし、前記特許文献１に開示された集合形受変電設備においては、各系統に対応する遮断器や断路器などを含む受電スイッチギヤと負荷給電スイッチギヤが、互いに隣接して配置される構成となっておらず、各スイッチギヤの交換時には受変電設備を停電させて工事を行う必要がある。   However, in the collective power receiving / transforming equipment disclosed in Patent Document 1, a power receiving switch gear including a circuit breaker and a disconnecting switch corresponding to each system and a load feeding switch gear are arranged adjacent to each other. However, when replacing each switchgear, it is necessary to carry out construction work by powering off the power receiving and transformation equipment.

この発明は、前記の課題に鑑みてなされたもので、第１の受電系統と第２の受電系統を有し、第１の受電系統と第２の受電系統のうち一方の系統のスイッチギヤを交換する場合に、他方の系統の受電側及び負荷給電側のスイッチギヤを分解することなく行うことを可能とする受配電設備を提供するものである。   The present invention has been made in view of the above problems, and has a first power receiving system and a second power receiving system, and the switch gear of one of the first power receiving system and the second power receiving system is provided. It is an object of the present invention to provide a power receiving / distributing facility that can be replaced without disassembling the power receiving side and load power feeding side switch gear of the other system.

この発明による受配電設備は、第１の受電系統と第２の受電系統から受電し、第１の負荷系統と第２の負荷系統に給電する受配電設備であって、
前記第１の受電系統に接続される第１の受電スイッチギヤと、前記第２の受電系統に接続される第２の受電スイッチギヤと、前記第１の負荷系統に接続される第１の負荷給電スイッチギヤと、前記第２の負荷系統に接続される第２の負荷給電スイッチギヤと、を備え、
前記第１の受電スイッチギヤと前記第１の負荷給電スイッチギヤを、ＶＣＴ用スイッチギヤを介して互いに隣接して配置すると共に、前記第２の受電スイッチギヤと前記第２の負荷給電スイッチギヤを互いに隣接して配置した受配電設備において、
前記第２の受電スイッチギヤと前記第２の負荷給電スイッチギヤとの相互間を絶縁母線で接続すると共に前記絶縁母線に貫通型変流器を装着したものである。 Power distribution equipment according to the present invention, it receives power from the first power-receiving system and the second power-receiving system, a power distribution equipment for supplying power to a first load line and a second load system,
A first power receiving switch gear connected to the first power receiving system; a second power receiving switch gear connected to the second power receiving system; and a first load connected to the first load system. A power supply switchgear, and a second load power supply switchgear connected to the second load system,
The first power receiving switch gear and the first load power feeding switch gear are arranged adjacent to each other via a VCT switch gear, and the second power receiving switch gear and the second load power feeding switch gear are arranged. In the power distribution facilities arranged adjacent to each other ,
The second power receiving switch gear and the second load feeding switch gear are connected to each other by an insulated bus, and a through-type current transformer is attached to the insulated bus .

この発明による受配電設備によれば、２つの系統のうち一方の系統のスイッチギヤを交換する場合に、各系統の受電側及び負荷給電側のスイッチギヤが互いに隣接して配置されているため、他方の系統の受電側及び負荷給電側のスイッチギヤを分解停電することなくスイッチギヤの交換が可能となる。   According to the power distribution facility according to the present invention, when switching the switch gear of one of the two systems, the switch gears on the power receiving side and the load power feeding side of each system are arranged adjacent to each other, The switchgear can be replaced without disassembling the switchgear on the power receiving side and load power feeding side of the other system.

第１の受電系統と第２の受電系統を有する２回線の受電系統からなる受配電設備の回路構成を示す単線接続図である。It is a single line connection figure which shows the circuit structure of the power receiving / distribution equipment which consists of a 2 line | wire power receiving system which has a 1st power receiving system and a 2nd power receiving system. この発明の実施の形態１によるガス絶縁開閉装置の配置構成を示す単線接続図である。It is a single line connection figure which shows the arrangement configuration of the gas insulation switchgear by Embodiment 1 of this invention. この発明の実施の形態２によるガス絶縁開閉装置の配置構成を示す単線接続図である。It is a single line connection figure which shows the arrangement configuration of the gas insulation switchgear by Embodiment 2 of this invention. この発明の実施の形態２によるガス絶縁開閉装置に使用される貫通型変流器の外観を示す斜視図である。It is a perspective view which shows the external appearance of the penetration type current transformer used for the gas insulated switchgear by Embodiment 2 of this invention.

以下、この発明による受配電設備の好適な実施の形態について図面を参照して説明する。   DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a power receiving and distributing facility according to the invention will be described with reference to the drawings.

実施の形態１．
図１は、この発明の実施の形態１による受配電設備の回路構成を示し、第１の受電系統と第２の受電系統を有する２回線の受電系統からなる受配電設備の回路構成を示す単線接続図である。
図１において、受配電設備１は、図１の左上側の第１の受電系統２と右上側の第２の受電系統３からなる２回線で受電している。また、図１の左下側の第１の負荷系統４は、第１の変圧器５を介して第１の負荷（図示せず）に給電し、図１の右下側の第２の負荷系統６は、第２の変圧器７を介して第２の負荷（図示せず）に給電している。 Embodiment 1 FIG.
1 shows a circuit configuration of a power receiving / distributing facility according to Embodiment 1 of the present invention, and shows a circuit configuration of a power receiving / distributing facility consisting of a two-line power receiving system having a first power receiving system and a second power receiving system. It is a connection diagram.
In FIG. 1, a power receiving / distributing facility 1 receives power through two lines including a first power receiving system 2 on the upper left side in FIG. 1 and a second power receiving system 3 on the upper right side. Further, the first load system 4 on the lower left side in FIG. 1 supplies power to the first load (not shown) via the first transformer 5, and the second load system on the lower right side in FIG. 6 feeds a second load (not shown) via a second transformer 7.

図１に示す受配電設備１は５つの区画に分割されており、それぞれ第１の受電スイッチギヤ８、第２の受電スイッチギヤ９、第１の負荷給電スイッチギヤ１０、第２の負荷給電スイッチギヤ１１、第１の受電スイッチギヤ８と第１の負荷給電スイッチギヤ１０との間に配置したＶＣＴ（Voltage and Current Transformer）用スイッチギヤ１２に区画され
ている。そして、これらの各スイッチギヤ８、９、１０、１１、１２はそれぞれ独立した筐体に区画されている。また、第１の受電スイッチギヤ８、第２の受電スイッチギヤ９、第１の負荷給電スイッチギヤ１０、第２の負荷給電スイッチギヤ１１には、それぞれ第１の断路器１３、第２の断路器１４、第３の断路器１５、第４の断路器１６が設置されている。なお、これらの各筐体は、通常の配電盤と称される気中絶縁の盤でもよいし、タンク内部に絶縁ガスを封入したガス絶縁形のスイッチギヤでもよい。
 1 is divided into five sections, each of which includes a first power receiving switch gear 8, a second power receiving switch gear 9, a first load power switch gear 10, and a second load power switch. A VCT (Voltage and Current Transformer) switch gear 12 is arranged between the gear 11, the first power receiving switch gear 8 and the first load feeding switch gear 10. Each of these switch gears 8, 9, 10, 11, 12 is partitioned into independent housings. Further, the first power receiving switch gear 8, the second power receiving switch gear 9, the first load power feeding switch gear 10, and the second load power feeding switch gear 11 have a first disconnector 13 and a second disconnection, respectively. A device 14, a third disconnector 15, and a fourth disconnector 16 are installed. Each of these cases may be an air-insulated board called a normal switchboard or a gas-insulated switchgear in which an insulating gas is sealed inside the tank.

図２は、実施の形態１による受配電設備であるガス絶縁開閉装置の配置構成を示す図で、図１の回路構成を適用した単線接続図である。
図２に示すように、実施の形態１によるガス絶縁開閉装置１は、ＶＣＴ用スイッチギヤ１２に隣接して第１の受電スイッチギヤ８と第１の負荷給電スイッチギヤ１０が配置されると共に、第２の受電スイッチギヤ９と第２の負荷給電スイッチギヤ１１が互いに隣接して配置されている。
FIG. 2 is a diagram showing an arrangement configuration of a gas insulated switchgear that is a power distribution facility according to the first embodiment, and is a single-line connection diagram to which the circuit configuration of FIG. 1 is applied.
As shown in FIG. 2, a gas insulated switchgear 1 according to the first embodiment, the first power-receiving switch gear 8 and the first load feeder switchgear 10 adjacent the VCT switch gear 12 is disposed, The second power receiving switch gear 9 and the second load feeding switch gear 11 are arranged adjacent to each other.

また、第１の受電スイッチギヤ８、第２の受電スイッチギヤ９、第１の負荷給電スイッチギヤ１０、第２の負荷給電スイッチギヤ１１は、主回路の上部出口近くに、それぞれ第１の断路器１３、第２の断路器１４、第３の断路器１５、第４の断路器１６が設置されており、第１の断路器１３と第２の断路器１４を固体絶縁母線である第１のバイパス線１７で接続している。また、第３の断路器１５と第４の断路器１６を固体絶縁母線である第２のバイパス線１８で接続している。   Further, the first power receiving switch gear 8, the second power receiving switch gear 9, the first load power feeding switch gear 10, and the second load power feeding switch gear 11 are respectively connected to the first disconnection near the upper outlet of the main circuit. 13, second disconnector 14, third disconnector 15, and fourth disconnector 16 are installed, and the first disconnector 13 and the second disconnector 14 are solid insulation buses. Are connected by a bypass line 17. The third disconnector 15 and the fourth disconnector 16 are connected by a second bypass line 18 that is a solid insulated bus.

実施の形態１によるガス絶縁開閉装置１は前記のように構成されており、第２の受電ス
イッチギヤ９、第２の負荷給電スイッチギヤ１１を交換する場合には、第１の断路器１３、第３の断路器１５を開くことで第２の受電スイッチギヤ９、第２の負荷給電スイッチギヤ１１は停電状態となり、さらに第２の受電スイッチギヤ９、第２の負荷給電スイッチギヤ１１は互いに隣接して配置されているため、第１の受電スイッチギヤ８、第１の負荷給電スイッチギヤ１０の運転を停止することなく、安全に交換作業を行なうことができる。
The gas insulated switchgear 1 according to the first embodiment is configured as described above. When the second power receiving switch gear 9 and the second load feeding switch gear 11 are replaced, the first disconnector 13, By opening the third disconnector 15, the second power receiving switch gear 9 and the second load power feeding switch gear 11 are in a power failure state, and the second power receiving switch gear 9 and the second load power feeding switch gear 11 are mutually connected. Since they are arranged adjacent to each other, the replacement work can be performed safely without stopping the operation of the first power receiving switch gear 8 and the first load feeding switch gear 10.

以上のように、実施の形態１による受配電設備１によれば、２つの系統のうち一方の系統のスイッチギヤを交換する場合に、他方の系統の受電及び負荷給電スイッチギヤを分解することなくスイッチギヤの交換が可能となる。なお、実施の形態１の各スイッチギヤは通常の配電盤と称される気中絶縁の盤でもよいし、タンクの内部に絶縁ガスを封入したガス絶縁形のスイッチギヤでもよい。
As described above, according to the power distribution facility 1 according to the first embodiment, when the switch gear of one of the two systems is replaced, the power reception and load feeding switch gear of the other system are not disassembled. The switchgear can be replaced. Each switchgear of the first embodiment may be an air-insulated board called a normal switchboard, or a gas-insulated switchgear in which an insulating gas is sealed inside a tank.

実施の形態２．
次に、この発明の実施の形態２による受配電設備について説明する。図３は、実施の形態２による受配電設備としてガス絶縁開閉装置の配置構成を示す図である。
図３において、実施の形態２によるガス絶縁開閉装置１の第１の受電スイッチギヤ８、第２の受電スイッチギヤ９、第１の負荷給電スイッチギヤ１０、第２の負荷給電スイッチギヤ１１には、実施の形態１と同様に、それぞれ第１の断路器１３、第２の断路器１４、第３の断路器１５、第４の断路器１６が設置されている。なお、これらの各筐体は、タンク内部に絶縁ガスを封入したガス絶縁形のスイッチギヤとして構成されている。 Embodiment 2. FIG.
Next, a power distribution facility according to Embodiment 2 of the present invention will be described. FIG. 3 is a diagram illustrating an arrangement configuration of a gas-insulated switchgear as a power distribution facility according to the second embodiment.
In FIG. 3, the first power receiving switch gear 8, the second power receiving switch gear 9, the first load power feeding switch gear 10, and the second load power feeding switch gear 11 of the gas insulated switchgear 1 according to the second embodiment are provided. As in the first embodiment, a first disconnector 13, a second disconnector 14, a third disconnector 15, and a fourth disconnector 16 are provided. Each of these cases is configured as a gas-insulated switchgear in which an insulating gas is sealed inside the tank.

また、図３において、符号１９は、第２の受電スイッチギヤ９と第２の負荷給電スイッチギヤ１１との相互間を接続する絶縁母線、例えば固体絶縁母線を示し、符号２０は、固体絶縁母線１９に装着される貫通型変流器を示している。なお、従来においては、第２の受電スイッチギヤ９と第２の負荷給電スイッチギヤ１１との相互間の接続は、第２の受電スイッチギヤ９と第２の負荷給電スイッチギヤ１１の側部壁面を貫通した水平母線で接続し、これをタンク内において絶縁ガスにて絶縁する構造であるため、変流器を配置する箇所に専用のタンクを配置する必要があった。 In FIG. 3, reference numeral 19 denotes an insulated bus that connects the second power receiving switch gear 9 and the second load feeding switch gear 11, for example, a solid insulated bus, and reference numeral 20 denotes a solid insulated bus. 1 shows a through-type current transformer attached to the body 19. Conventionally, the connection between the second power receiving switch gear 9 and the second load power feeding switch gear 11 is the side wall surface of the second power receiving switch gear 9 and the second load power feeding switch gear 11. connected by a horizontal generatrix passing through the which the order in the tank is a structure that insulated by insulating gas, it is necessary to place the dedicated tank at a location to place the current transformer.

貫通型変流器２０は、図４にその斜視図を示すように、中央部に貫通孔２１を有すると共に、外周部に２次端子２２が設けられている。そして、この貫通孔２１は、第２の受電スイッチギヤ９と第２の負荷給電スイッチギヤ１１のそれぞれの対向する側部壁面に凹部を形成し、この凹部内に貫通型変流器２０を収納することで、貫通型変流器２０の厚さ分だけガス絶縁開閉装置１の幅が増加することを防止している。なお、前記凹部は、第２の受電スイッチギヤ９と第２の負荷給電スイッチギヤ１１の対向する側部壁面の何れか一方の側部壁面に形成してもよい。また、その他の構成は実施の形態１と同様であり、同一符号を付すことにより説明を省略する。   As shown in the perspective view of FIG. 4, the through-type current transformer 20 has a through-hole 21 at the center and a secondary terminal 22 at the outer periphery. And this through-hole 21 forms a recessed part in each opposing side wall surface of the 2nd receiving switch gear 9 and the 2nd load electric power supply switch gear 11, and accommodates the penetration type current transformer 20 in this recessed part. This prevents the width of the gas-insulated switchgear 1 from increasing by the thickness of the through-type current transformer 20. The concave portion may be formed on any one of the side wall surfaces of the second power receiving switch gear 9 and the second load feeding switch gear 11 facing each other. Other configurations are the same as those of the first embodiment, and the description thereof is omitted by giving the same reference numerals.

実施の形態２によるガス絶縁開閉装置１は前記のように構成されており、実施の形態１と同様の効果を得ると共に、第２の受電スイッチギヤ９と第２の負荷給電スイッチギヤ１１との相互間を固体絶縁母線１９で接続し、固体絶縁母線１９に貫通型変流器２０を装着したので、変流器専用のスイッチギヤを省略することができ、ガス絶縁開閉装置１を小型化することができる。   The gas-insulated switchgear 1 according to the second embodiment is configured as described above, and obtains the same effects as those of the first embodiment, and includes the second power receiving switch gear 9 and the second load feeding switch gear 11. Since the solid insulation buses 19 are connected to each other and the through-type current transformer 20 is attached to the solid insulation bus bars 19, the switchgear dedicated to the current transformer can be omitted, and the gas insulated switchgear 1 can be downsized. be able to.

以上、この発明の実施の形態１及び２による受配電設備について説明したが、この発明は、その発明の範囲内において、各実施の形態を自由に組み合わせたり、各実施の形態を適宜、変形、省略することが可能である。   As described above, the power distribution facility according to Embodiments 1 and 2 of the present invention has been described. However, within the scope of the present invention, the embodiments can be freely combined, or the embodiments can be modified as appropriate. It can be omitted.

１ 受配電設備（ガス絶縁開閉装置）、２ 第１の受電系統、３ 第２の受電系統、４ 第１の負荷系統、５ 第１の変圧器、６ 第２の負荷系統、７ 第２の変圧器、８ 第１の受電スイッチギヤ、９ 第２の受電スイッチギヤ、１０ 第１の負荷給電スイッチギヤ、１１ 第２の負荷給電スイッチギヤ、１２ ＶＣＴ用スイッチギヤ、１３ 第１の断路器、１４ 第２の断路器、１５ 第３の断路器、１６ 弟４の断路器、１７ 第１のバイパス線（固体絶縁母線）、１８ 第２のバイパス線（固体絶縁母線）、１９ 固体絶縁母線、２０ 貫通型変流器、２１ 貫通孔、２２ ２次端子。 DESCRIPTION OF SYMBOLS 1 Power distribution equipment (gas insulated switchgear), 2 1st power receiving system, 3 2nd power receiving system, 4 1st load system, 5 1st transformer, 6 2nd load system, 7 2nd Transformer, 8 first power receiving switch gear, 9 second power receiving switch gear, 10 first load power feeding switch gear, 11 second load power feeding switch gear, 12 VCT switch gear, 13 first disconnector, 14 second disconnector, 15 third disconnector, 16 brother 4 disconnector, 17 first bypass line (solid insulation bus), 18 second bypass line (solid insulation bus), 19 solid insulation bus, 20 through-type current transformer, 21 through-hole, 22 secondary terminal.

Claims (2)

第１の受電系統と第２の受電系統から受電し、第１の負荷系統と第２の負荷系統に給電する受配電設備であって、
前記第１の受電系統に接続される第１の受電スイッチギヤと、
前記第２の受電系統に接続される第２の受電スイッチギヤと、
前記第１の負荷系統に接続される第１の負荷給電スイッチギヤと、
前記第２の負荷系統に接続される第２の負荷給電スイッチギヤと、
を備え、
前記第１の受電スイッチギヤと前記第１の負荷給電スイッチギヤを、ＶＣＴ用スイッチギヤを介して互いに隣接して配置すると共に、前記第２の受電スイッチギヤと前記第２の負荷給電スイッチギヤを互いに隣接して配置した受配電設備において、
前記第２の受電スイッチギヤと前記第２の負荷給電スイッチギヤとの相互間を絶縁母線で接続すると共に前記絶縁母線に貫通型変流器を装着したことを特徴とする受配電設備。 Power receiving and distribution equipment for receiving power from the first power receiving system and the second power receiving system and supplying power to the first load system and the second load system,
A first power receiving switchgear connected to the first power receiving system;
A second power receiving switchgear connected to the second power receiving system;
A first load feeding switchgear connected to the first load system;
A second load feeding switchgear connected to the second load system;
With
The first power receiving switch gear and the first load power feeding switch gear are arranged adjacent to each other via a VCT switch gear, and the second power receiving switch gear and the second load power feeding switch gear are arranged. In the power distribution facilities arranged adjacent to each other ,
A power receiving and distribution facility characterized in that the second power receiving switch gear and the second load feeding switch gear are connected to each other by an insulated bus and a through-type current transformer is mounted on the insulated bus . 前記第１の受電スイッチギヤの前記第１の受電系統に接続される側と反対側出口に設置された第１の断路器と、
前記第２の受電スイッチギヤの前記第２の受電系統に接続される側と反対側出口に設置された第２の断路器と、
前記第１の断路器と前記第２の断路器とを接続する第１のバイパス線と、
前記第１の負荷給電スイッチギヤの前記第１の負荷系統に接続される側と反対側出口に設置された第３の断路器と、
前記第２の負荷給電スイッチギヤの前記第２の負荷系統に接続される側と反対側出口に設置された第４の断路器と、
前記第３の断路器と前記第４の断路器とを接続する第２のバイパス線と、
を備えたことを特徴とする請求項１に記載の受配電設備。 A first disconnector installed at an outlet on the opposite side to the side connected to the first power receiving system of the first power receiving switch gear;
A second disconnector installed at an outlet opposite to the side connected to the second power receiving system of the second power receiving switch gear;
A first bypass line connecting the first disconnector and the second disconnector;
A third disconnector installed at the outlet opposite to the side connected to the first load system of the first load feeding switchgear;
A fourth disconnector installed at the outlet opposite to the side connected to the second load system of the second load feeding switchgear;
A second bypass line connecting the third disconnector and the fourth disconnector;
The power distribution facility according to claim 1, comprising:
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