JP5151820B2 - Closed switchboard - Google Patents

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JP5151820B2
JP5151820B2 JP2008223062A JP2008223062A JP5151820B2 JP 5151820 B2 JP5151820 B2 JP 5151820B2 JP 2008223062 A JP2008223062 A JP 2008223062A JP 2008223062 A JP2008223062 A JP 2008223062A JP 5151820 B2 JP5151820 B2 JP 5151820B2
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arc gas
gas discharge
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bus
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JP2010063194A (en
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和義 木村
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Meidensha Corp
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Description

本発明は、閉鎖配電盤に関するものである。   The present invention relates to a closed switchboard.

閉鎖配電盤内には、遮断器、断路器などの電力用開閉器、変成器、母線や接続導体などの電気機器が収納されている。これら機器は、保守点検を行うため、通常、閉鎖配電盤の背面扉を開いて行っている。このため、配電盤内の奥まった位置に収納配置されてある機器は、背面扉を開放しても他の機器が配置されてある関係から保守点検作業が円滑にできないことがある。   The closed switchboard houses electrical switches such as circuit breakers and disconnectors, transformers, busbars and connecting conductors. These devices are usually opened with the rear doors of closed switchboards open for maintenance. For this reason, a device that is housed and arranged in a deep position in the switchboard may not be able to be smoothly maintained and inspected because other devices are arranged even when the rear door is opened.

図６は、直流電気鉄道用の主回路構成図で、図６において、ＴＲは整流器用変圧器、ＲＦは整流器である。この整流器ＲＦで整流された直流電力は、開閉器８９Ｐを介して正母線Ｐ−ＢＵＳに供給された後、高速遮断器５４Ｆ11〜５４Ｆ14を介して架線Ｗ１〜Ｗ４に供給される。 FIG. 6 is a main circuit configuration diagram for a DC electric railway. In FIG. 6, TR is a rectifier transformer, and RF is a rectifier. DC power rectified by the rectifier RF is then supplied to the positive bus P-BUS via the switches 89P, supplied to the overhead line W1~W4 via the high-speed switch 54F 11 ~54F 14.

Ｚ−ＢＵＳは迂回母線で、この母線Ｚ−ＢＵＳには、何らかの原因で高速遮断器５４Ｆ11〜５４Ｆ14が故障したときに、正母線Ｐ−ＢＵＳに接続された共用遮断器５４ＦＺを介して前記直流電力が供給され、この直流電力が開閉器８９Ｚ11〜８９Ｚ14を介して架線Ｗ１〜Ｗ４に供給されて、電気車への停電を防止する機能を備えたものである。 Z-BUS is a bypass bus. When the high-speed circuit breakers 54F 11 to 54F 14 fail for some reason, Z-BUS is connected to the bus Z-BUS via the common circuit breaker 54FZ connected to the positive bus P-BUS. DC power is supplied, the DC power is supplied to the overhead line W1~W4 via the switch 89Z 11 ~89Z 14, those having a function of preventing the power failure of the electric vehicle.

なお、図中、ＤＣＣＴは直流変流器、ＤＳは断路器、ＬＡは避雷器であり、また、図中一点鎖線で囲んだ部分は、それぞれ閉鎖配電盤として構成される。さらに、ＲＡはレールで、このレールＲＡには、整流器ＲＦの負極Ｎが開閉器８９Ｎを介して接続される。   In the figure, DCCT is a direct current transformer, DS is a disconnector, LA is a lightning arrester, and the portions surrounded by the one-dot chain line in the figure are each configured as a closed switchboard. Further, RA is a rail, and the negative electrode N of the rectifier RF is connected to the rail RA via a switch 89N.

上記のように構成された直流電気鉄道の主回路で使用される電気機器などを閉鎖配電盤内に収納する際、配電盤が比較的小型に構成されるために、正母線Ｐ−ＢＵＳ、迂回母線Ｚ−ＢＵＳ、高速遮断器５４Ｆ11〜５４Ｆ14、開閉器８９Ｚ11〜８９Ｚ14を無理やりに盤内に収納するため、後日の保守点検作業が困難になっていた。そこで、このような不具合を解消するために、閉鎖配電盤内外に保守点検用の空間や通路を構成したものが案出されている（特許文献１，２参照。）。
特開２００３−１７４７０７号公報 特公平１−５６６０４号公報 When the electrical equipment used in the main circuit of the DC electric railway constructed as described above is housed in a closed switchboard, the switchboard is configured to be relatively small. Therefore, the positive bus P-BUS, the bypass bus Z -BUS, high-speed switch 54F 11 ~54F 14, for housing the switch 89Z 11 ~89Z 14 to forcibly in the panel, had become difficult at a later date of maintenance and inspection work. Therefore, in order to solve such problems, there has been devised a structure in which a maintenance inspection space and passage are formed inside and outside the closed switchboard (see Patent Documents 1 and 2).
JP 2003-174707 A Japanese Patent Publication No. 1-56604

上記のように、閉鎖配電盤の内部に点検用の空間や通路を設けると、配電盤を大型化する必要があり、また、閉鎖配電盤の背面扉を一定間隔隔てて点検用通路とすることは、設置面積が大きくなってしまう問題もある。さらに、閉鎖配電盤は、列盤構成を採るため、正母線、迂回母線は、盤外側から手の届く範囲内に無理やり配置しているために、盤構造上の大きな障害になってしまう問題もある。   As described above, if a space or passage for inspection is provided inside the closed switchboard, it is necessary to increase the size of the switchboard, and the back door of the closed switchboard is used as an inspection passage with a certain interval. There is also a problem that the area becomes large. Furthermore, since the closed switchboard has a row arrangement, the main bus and the detour bus are forcibly arranged within the reach of the outside from the outside of the panel. .

本発明の目的は、上記の事情に鑑みてなされたもので、盤内機器等のメンテナンスや取り付け作業を容易にした閉鎖配電盤を提供することにある。   An object of the present invention has been made in view of the above circumstances, and is to provide a closed switchboard that facilitates maintenance and installation work of in-panel devices and the like.

上記の課題を達成するために、請求項１に係る発明は、Ｕ字形状とした盤であって内部に各種電気機器が収納配設された１〜ｎ個の盤本体を複数並列配設し、これら盤本体の並列方向の中央部に、当該盤本体のＵ字形状内側によって包囲された通路であって底部がほぼ平坦に構成された点検用通路を、盤本体と一体的に形成し、前記点検用通路の前記盤本体の側面部には、扉を設け、その通路への入出は扉の開閉により行い、前記点検用通路内には、アークガス放出口とその放出口にアークガスを上方に向けて噴出させるアークガス放出用ダクトを設置したものである。 In order to achieve the above object, the invention according to claim 1 is a U-shaped board in which a plurality of 1 to n board main bodies in which various electric devices are housed are arranged in parallel. In the central part of the panel body in the parallel direction, a passage for inspection surrounded by a U-shaped inner side of the panel body and having a substantially flat bottom is integrally formed with the panel body , A door is provided on the side surface of the panel body of the inspection passage, and the door is opened and closed by opening and closing the door. In the inspection passage, an arc gas discharge port and an arc gas at the discharge port are directed upward. This is an arc gas discharge duct that is ejected toward the center .

請求項２に係る発明は、請求項１において、前記アークガス放出用ダクトは、前記アークガス放出口に脱着可能としたことを特徴とするものである。 The invention according to claim 2 is characterized in that, in claim 1 , the arc gas discharge duct is detachable from the arc gas discharge port.

本発明によれば、点検用通路を形成した閉鎖配電盤に構成したことにより、各種電気機器や母線等を盤本体内に取り付けたり、設置したりする作業性が向上し、また、各種機器の保守点検等も容易に行なうことができる利点がある。   According to the present invention, by configuring the closed switchboard having the inspection passage, the workability of installing and installing various electrical devices and busbars in the panel body is improved, and maintenance of various devices is performed. There is an advantage that inspection and the like can be easily performed.

さらに、本発明によれば、アークガスを上方に向けて噴出させるので、盤の周辺の人や構造物に影響を与えないため、安全性が向上し、また、通常時には通行しない点検用通路にアークガス放出用ダクトを設置することができるので、設置効率が高くなる利点がある。この他、点検時には、アークガス放出用ダクトを取り外すことができるので、点検時の通行には支障を生じない利点がある。   Further, according to the present invention, since the arc gas is ejected upward, it does not affect the people and structures around the board, so that safety is improved and the arc gas is passed through the inspection passage that does not normally pass. Since the discharge duct can be installed, there is an advantage that the installation efficiency is increased. In addition, since the arc gas discharge duct can be removed at the time of inspection, there is an advantage that the passage at the time of inspection is not hindered.

以下本発明の実施の形態を図面に基づいて説明する。図１は本発明の実施の形態１を示す概略的な斜視図で、この実施の形態１では、４面列盤の場合を示している。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic perspective view showing Embodiment 1 of the present invention. In Embodiment 1, a case of a four-sided board is shown.

図１において、Ｕ字形状の閉鎖配電盤本体（以下盤本体と称す）１１ａ〜１１ｄは並列接続され、かつ盤本体１１ａ〜１１ｄの並列方向の中央部には、各盤本体１１ａ〜１１ｄのＵ字形状内側によって包囲された点検用通路１２が形成される。 In FIG. 1, U-shaped closed switchboard main bodies (hereinafter referred to as “board main bodies”) 11 a to 11 d are connected in parallel, and the U-shapes of the respective board main bodies 11 a to 11 d are arranged at the center in the parallel direction of the board main bodies 11 a to 11 d. An inspection passage 12 surrounded by the inner shape is formed.

その点検用通路１２のＵ字形状内側の下部には、段部１３が形成されるとともに、Ｕ字形状の底部は、ほぼ平坦に形成されて、保守点検員の歩行が容易となるように構成されている。なお、図１において、図示右側が盤本体の背面側になる。   A step portion 13 is formed in the U-shaped inner lower portion of the inspection passage 12 and the U-shaped bottom portion is formed substantially flat so that a maintenance inspector can easily walk. Has been. In FIG. 1, the right side in the figure is the back side of the board body.

図１に示すように構成された盤本体１１ａ〜１１ｄは、図６に一点鎖線で示した
閉鎖配電盤に相当し、盤本体１１ａ〜１１ｄには、図６に示す正母線Ｐ−ＢＵＳ、迂回母線Ｚ−ＢＵＳ、高速遮断器５４Ｆ11、開閉器８９Ｚ11などが収納配置される。 The board main bodies 11a to 11d configured as shown in FIG. 1 correspond to the closed switchboard shown by the one-dot chain line in FIG. 6, and the main boards 11a to 11d include the positive bus P-BUS and the bypass bus shown in FIG. Z-BUS, high-speed switch 54F 11, such as switch 89Z 11 are housed and arranged.

図２は本発明の実施の形態２を示す構成図で、この実施の形態２は、前記点検用通路１２に扉１４を設けたときのもので、図２では、扉１４を盤本体１１ａの側面部に設けたが、扉１４は盤本体１１ｄ側の側面部にも設けられる。なお、１４ａはヒンジ、１４ｂは取手である。   FIG. 2 is a block diagram showing a second embodiment of the present invention. This second embodiment is a case where a door 14 is provided in the inspection passage 12, and in FIG. 2, the door 14 is attached to the panel main body 11a. Although provided on the side surface, the door 14 is also provided on the side surface on the panel main body 11d side. In addition, 14a is a hinge and 14b is a handle.

図３（Ａ）（Ｂ）は盤本体１１ａの内部を示す側面図及び背面図で、図３（Ａ）において、Ｐ−ＢＵＳは正母線、５４Ｆ11は高速遮断器、ＤＣＣＴは直流変流器、Ｚ−ＢＵＳは迂回母線、８９Ｚ11は開閉器、ＤＳは断路器、ＬＡは避雷器であり、外部ケーブル３１は架線Ｗ１に接続される。 3A and 3B are a side view and a rear view showing the inside of the panel body 11a. In FIG. 3A, P-BUS is a positive bus, 54F 11 is a high-speed circuit breaker, and DCCT is a DC current transformer. , Z-BUS detour bus, 89Z 11 has switch, DS is disconnectors, LA is a lightning arrester, external cables 31 are connected to the overhead wire W1.

３２は高速遮断器５４Ｆ11の遮断時に発生するアークガスを盤本体１１ａ〜１１ｄの点検用通路１２側に穿設されたアークガス放出口３０に脱着可能に設けられたアークガス放出用ダクトである。 32 is a high-speed switch 54F 11 arc gas emission duct provided detachably to the arc gas emission port 30 bored in the inspection passage 12 side of the board body 11a~11d the arc gas generated during interruption of.

このアークガス放出用ダクト３２は、アークガスを盤本体１１ａ〜１１ｄの上方に噴出させるように構成され、このアークガス放出用ダクト３２は上記のように点検用通路１２に配設される。アークガスは、盤本体１１ａ〜１１ｄの上方に噴出させるので、盤本体１１ａ〜１１ｄの周辺の人員や構造物に影響を及ぼさないため、安全性が高まる。また、点検用通路１２のスペースにアークガス放出用ダクト３２を設置させるので、設置効率が高くなる。   The arc gas discharge duct 32 is configured to eject arc gas above the panel main bodies 11a to 11d, and the arc gas discharge duct 32 is disposed in the inspection passage 12 as described above. Since the arc gas is ejected above the board main bodies 11a to 11d, it does not affect the personnel and structures around the board main bodies 11a to 11d, thereby increasing safety. Moreover, since the arc gas discharge duct 32 is installed in the space of the inspection passage 12, the installation efficiency is increased.

さらに、上記アークガス放出用ダクト３２は、脱着可能に構成されているので、保守点検時にはアークガス放出用ダクト３２は取り外されるので、保守点検時の通行に支障を与えない利点がある。   Further, since the arc gas discharge duct 32 is configured to be detachable, the arc gas discharge duct 32 is removed at the time of maintenance and inspection, so that there is an advantage that the passage at the time of maintenance and inspection is not hindered.

図４（Ａ）（Ｂ）はアークガス放出用ダクト３２を点検用通路１２から取り外したときの側面図と取り外したアークガス放出用ダクトの斜視図である。アークガス放出用ダクト３２を取り外すことにより、点検用通路１２を保守点検員が容易に移動可能になり、点検用通路側の板体３３を取り外して、盤本体内の点検が容易にできるようになる。勿論、盤本体内に電気機器などを取り付ける際も容易にできるようになる。   4A and 4B are a side view when the arc gas discharge duct 32 is removed from the inspection passage 12, and a perspective view of the removed arc gas discharge duct. By removing the arc gas discharge duct 32, a maintenance inspector can easily move the inspection passage 12, and the plate 33 on the inspection passage side can be removed to easily inspect the inside of the panel body. . Of course, it is also possible to easily attach an electrical device or the like in the panel body.

図５は本発明の実施の形態３を示す斜視図で、この実施の形態３は、点検用通路１２の内側に断部１３を形成しないように点検用通路１２ａを構成したもので、このように点検用通路１２ａを構成することにより、保守点検がより円滑にできるようになる。   FIG. 5 is a perspective view showing a third embodiment of the present invention. In the third embodiment, the inspection passage 12a is configured so as not to form the cut portion 13 inside the inspection passage 12. FIG. By configuring the inspection passage 12a, the maintenance inspection can be performed more smoothly.

本発明の実施の形態１を示す概略的な斜視図。1 is a schematic perspective view showing Embodiment 1 of the present invention. 本発明の実施の形態２を示す構成図。The block diagram which shows Embodiment 2 of this invention. 盤本体の内部を示す側面図及び背面図。The side view and back view which show the inside of a panel main body. アークガス放出用ダクトを点検用通路から取り外したときの側面図と取り外したアークガス放出用ダクトの斜視図。The side view when the arc gas discharge duct is removed from the inspection passage, and the perspective view of the removed arc gas discharge duct. 本発明の実施の形態３を示す斜視図。The perspective view which shows Embodiment 3 of this invention. 直流電気鉄道用の主回路構成図。The main circuit block diagram for DC electric railways.

符号の説明Explanation of symbols

１１ａ〜１１ｄ…閉鎖配電盤本体
１２…点検用通路
１３…断部
１４…扉
３０…アークガス放出口
３２…アークガス放出用ダクト 11a to 11d: Closed switchboard body 12 ... Inspection passage 13 ... Cut 14 ... Door 30 ... Arc gas discharge port 32 ... Arc gas discharge duct

Claims (2)

Ｕ字形状とした盤であって内部に各種電気機器が収納配設された１〜ｎ個の盤本体を複数並列配設し、これら盤本体の並列方向の中央部に、当該盤本体のＵ字形状内側によって包囲された通路であって底部がほぼ平坦に構成された点検用通路を、盤本体と一体的に形成し、
前記点検用通路の前記盤本体の側面部には、扉を設け、その通路への入出は扉の開閉により行い、
前記点検用通路内には、アークガス放出口とその放出口にアークガスを上方に向けて噴出させるアークガス放出用ダクトを設置したことを特徴とする閉鎖配電盤。 A board having a U-shape, in which a plurality of 1 to n board bodies in which various electric devices are housed and arranged are arranged in parallel, and the U of the board body is arranged at the center in the parallel direction of these board bodies. An inspection passage that is surrounded by a letter-shaped inner side and has a substantially flat bottom portion is formed integrally with the panel body ,
A door is provided on the side surface of the panel main body of the inspection passage, and entering and exiting the passage is performed by opening and closing the door.
A closed switchboard comprising an arc gas discharge port and an arc gas discharge duct for discharging the arc gas upward at the discharge port in the inspection passage . 前記アークガス放出用ダクトは、前記アークガス放出口に脱着可能としたことを特徴とする請求項１に記載の閉鎖配電盤。 The arc gas discharge duct is closed switchboard according to claim 1, characterized in that the detachable to said arc gas outlet.
JP2008223062A 2008-09-01 2008-09-01 Closed switchboard Active JP5151820B2 (en)

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