JPS5936090Y2 - busbar support device - Google Patents
busbar support deviceInfo
- Publication number
- JPS5936090Y2 JPS5936090Y2 JP13510779U JP13510779U JPS5936090Y2 JP S5936090 Y2 JPS5936090 Y2 JP S5936090Y2 JP 13510779 U JP13510779 U JP 13510779U JP 13510779 U JP13510779 U JP 13510779U JP S5936090 Y2 JPS5936090 Y2 JP S5936090Y2
- Authority
- JP
- Japan
- Prior art keywords
- insulating member
- support
- bus bar
- support device
- ground
- 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
Links
Landscapes
- Patch Boards (AREA)
- Installation Of Bus-Bars (AREA)
Description
【考案の詳細な説明】
この考案は例えば閉鎖配電盤やバスダクト等の電気機器
に使用されている母線支持装置に関するものである。[Detailed Description of the Invention] This invention relates to a busbar support device used in electrical equipment such as closed switchboards and bus ducts.
以下、第１図〜第４図にそれぞれ示す従来の例えば閉鎖
配電盤やバスダクトの電気機器に使用されている母線支
持装置について説明する。Hereinafter, a conventional bus bar support device used in electrical equipment such as a closed switchboard or a bus duct, as shown in FIGS. 1 to 4, will be explained.
第１図及び第２図においては一体にモールドされた絶縁
部材による母線支持装置、第３図及び第４図においては
支持碍子による母線支持装置をそれぞれ示している。1 and 2 show a bus bar support device using an integrally molded insulating member, and FIGS. 3 and 4 show a bus bar support device using a support insulator, respectively.
第１図及び第２図において、１は盤の箱体であり、対地
電位にある。In FIGS. 1 and 2, reference numeral 1 denotes the box body of the board, which is at ground potential.
２はこの箱体１内に収容された複数個の母線であり、図
は→りとして３個設けた場合を示している。Reference numeral 2 denotes a plurality of busbars housed in the box 1, and the figure shows a case in which three busbars are provided.
即ち、３相母線を形成している。In other words, it forms a three-phase bus.
３は後述する支持金具５に図示しないボルトによって取
り付けられ、母線２をその間隔を保って支持する第１の
絶縁部材であり、この第１の絶縁部材３と母線２とは図
示しないボルトによって締付固定されている。Reference numeral 3 denotes a first insulating member that is attached to a support fitting 5 (described later) with a bolt (not shown) and supports the bus bar 2 while maintaining the distance therebetween. Fixed.
４は各母線２間、及び母線２と箱体１の内壁との間に配
置されて第１の絶縁部材３に設けられた第２の絶縁部材
であり、この第２の絶縁部材４と第１の絶縁部材３とは
一体にモールドされている。Reference numeral 4 denotes a second insulating member provided on the first insulating member 3 and disposed between each bus bar 2 and between the bus bar 2 and the inner wall of the box body 1. It is integrally molded with the insulating member 3 of No. 1.
５は箱体１の内壁に取り付けられ、第１の絶縁部材３を
支持し、対地電位にある支持金具である。A supporting metal fitting 5 is attached to the inner wall of the box body 1, supports the first insulating member 3, and is at ground potential.
このように構成された従来の母線支持装置に釦いては、
各母線２が第１の絶縁部材３及び第２の絶縁部材４によ
ってその間隔が保たれて督り、母線２の相間、対地間の
絶縁は第１の絶縁部材３及び第２の絶縁部材４の表面沿
面距離で保持している。Regarding the conventional bus bar support device configured in this way,
Each bus bar 2 is insulated by a first insulating member 3 and a second insulating member 4 so that the distance therebetween is maintained, and insulation between phases and ground of the bus bar 2 is provided by the first insulating member 3 and the second insulating member 4. The surface creepage distance is maintained at .
また、相間の短絡事故時、母線２間には大きな電磁反発
力あるいは吸引力が発生する。Further, in the event of a short-circuit accident between phases, a large electromagnetic repulsive force or attractive force is generated between the bus bars 2.
この大きな力に耐え得る支持強度は第１の絶縁部材３、
第２の絶縁部材４の圧縮並びに引張強度で持たせている
。The support strength that can withstand this large force is provided by the first insulating member 3,
This is achieved by the compressive and tensile strength of the second insulating member 4.
一方、第３図及び第４図において、１は箱体、２は母線
、６は後述する支持金具７に図示しないボルトによって
取り付けられ、母線２をその間隔を保って別個に支持す
る支持碍子であり、この支持碍子６と母線２とは図示し
ないボルトによって締付固定されている。On the other hand, in FIGS. 3 and 4, 1 is a box, 2 is a busbar, and 6 is a support insulator that is attached to a support fitting 7 (described later) with bolts (not shown) and separately supports the busbar 2 while maintaining the interval. The support insulator 6 and the bus bar 2 are tightened and fixed with bolts (not shown).
Ｉは箱体１の底板に取り付けられ、支持碍子６を支持し
、対地電位にある支持金具である。I is a support metal fitting attached to the bottom plate of the box body 1, supporting the support insulator 6, and being at ground potential.
このように構成された従来の母線支持装置においては、
母線２が支持碍子６によってその間隔が保たれており、
母線２の相間、対地間の絶縁は支持碍子６の長さ寸法や
径寸法などによって保持している。In the conventional bus bar support device configured in this way,
The distance between the busbars 2 is maintained by the support insulator 6,
Insulation between the phases of the bus bar 2 and between the ground and the ground is maintained by the length and diameter of the support insulator 6.
筐た、相間の短絡事故時、母線２間に発生する大きな力
に耐え得る支持強度は支持碍子６の曲げ強度で持たせて
いる。The bending strength of the support insulator 6 provides support strength capable of withstanding the large force generated between the busbars 2 in the event of a short-circuit accident between the casing and the phases.
しかしながら上述した従来のそれぞれの母線支持装置で
は、種々の不具合が生じていた。However, each of the above-mentioned conventional busbar support devices has had various problems.
前者の場合では、母線２の相間、対地間の絶縁を第１の
絶縁部材３及び第２の絶縁部材４の表面沿面距離で保持
しているので、第１の絶縁部材３及び第２の絶縁部材４
の劣化等によって母線２の相間、対地間の絶縁耐力が低
下し、沿面絶縁破壊に至ったとき、相間の絶縁破壊が対
地間の絶縁破壊よりも先に起こる恐れがあった。In the former case, since the insulation between the phases of the bus bar 2 and the ground is maintained by the surface creepage distance of the first insulating member 3 and the second insulating member 4, the first insulating member 3 and the second insulating member Part 4
When the dielectric strength between the phases and the ground of the bus bar 2 decreases due to deterioration of the bus bar 2, leading to creeping dielectric breakdown, there is a possibility that the dielectric breakdown between the phases will occur before the dielectric breakdown between the phases and the ground.
即ち、母線２の事故の内、極力避ける必要がある相間の
短絡事故が先に起こることになり、対地間の地絡事故に
て母線２の事故を見つけることができず、母線２の事故
による電気機器の被害が非常に大きなものとなり、電気
的信頼性に劣る欠点があった。In other words, among the accidents on bus 2, the phase-to-phase short circuit accident, which should be avoided as much as possible, will occur first, and the fault on bus 2 cannot be detected due to the ground fault between the ground and bus 2. The damage to electrical equipment was extremely large, and there was a drawback of poor electrical reliability.
しかし、相間の短絡事故時、母線２間に発生する大きな
力に耐え得る支持強度を第１の絶縁部材３、第２の絶縁
部材４の圧縮並びに引張強度で持たせているので、充分
な支持強度が得られ機械的信頼性は優れている。However, since the compressive and tensile strengths of the first insulating member 3 and the second insulating member 4 provide support strength capable of withstanding the large force generated between the busbars 2 in the event of a short-circuit accident between phases, sufficient support is provided. It has good strength and mechanical reliability.
一方、後者の場合では、母線２の相間、対地間の絶縁を
対地電位にある支持金具７に取り付けられた支持碍子６
の長さ寸法や径寸法などによって保持しているので、支
持碍子６の劣化等によって母線２の相間、対地間の絶縁
耐力が低下し、絶縁破壊に至ったとき、対地電位にある
支持金具７の作用により対地間の絶縁破壊が相間の絶縁
破壊よりも先に起こる。On the other hand, in the latter case, the support insulator 6 attached to the support fitting 7 at the ground potential provides insulation between the phases and the ground of the bus bar 2.
Since the supporting insulator 6 is held in place by its length and diameter, when the dielectric strength between the phases and ground of the bus bar 2 decreases due to deterioration of the support insulator 6, leading to dielectric breakdown, the support metal 7 which is at ground potential Due to the action of , the dielectric breakdown between the ground and the ground occurs before the dielectric breakdown between the phases.
即ち、対地間の地絡事故にて母線２の事故を見つけだす
ことができ、母線２の事故による電気機器の被害が小さ
なものとなり、電気的信頼性に優れている。That is, a fault in the bus bar 2 can be detected from a fault in the ground fault, and damage to electrical equipment due to a fault in the bus bar 2 is minimized, resulting in excellent electrical reliability.
しかし、相間の短絡事故時、母線２間に発生する大きな
力に耐え得る支持強度を支持碍子６の曲げ強度で持たせ
ているので、支持碍子６が破損する恐れがあり、機械的
信頼性に劣る欠点があった。However, since the bending strength of the support insulator 6 has enough support strength to withstand the large force generated between the busbars 2 in the event of a short-circuit accident between phases, there is a risk that the support insulator 6 will be damaged, which may affect mechanical reliability. It had some disadvantages.
この機械的信頼性を高めるためには、支持碍子６を大き
くしなければならず、且つ高価なものとなる欠点があっ
た。In order to improve this mechanical reliability, the supporting insulator 6 must be made larger, which has the disadvantage of being expensive.
この考案は上記のような欠点に鑑みてなされたものであ
り、電気的信頼性並びに機械的信頼性に優れた母線支持
装置を提供することを目的としている。This invention was made in view of the above-mentioned drawbacks, and the purpose is to provide a bus bar support device that has excellent electrical reliability and mechanical reliability.
以下、この考案の一実施例を第５図ないし第７図に基づ
いて説明する。An embodiment of this invention will be described below with reference to FIGS. 5 to 7.
これら各図において、１は箱体、２は母線、８は後述す
る支持部材１０に図示しないボルトによって取り付けら
れ、母線２をその間隔を保って支持する第１の絶縁部材
であり、この第１の絶縁部材８と母線２とは図示しない
ボルトによって締付固定されている。In each of these figures, 1 is a box, 2 is a busbar, and 8 is a first insulating member that is attached to a support member 10 (described later) with bolts (not shown) and supports the busbar 2 while maintaining the interval. The insulating member 8 and bus bar 2 are fastened and fixed by bolts (not shown).
９は各母線２間に例えば２個配置されて第１の絶縁部材
８に設けられた第２の絶縁部材であり、この第２の絶縁
部材９と第１の絶縁部材８とは一体にモールドされてい
る。Reference numeral 9 denotes a second insulating member, for example, two insulating members arranged between each bus bar 2 and provided on the first insulating member 8, and the second insulating member 9 and the first insulating member 8 are integrally molded. has been done.
１０は第２の絶縁部材９間に配置されて箱体１の底板に
取り付けられ、第１の絶縁部材８を支持し、対地電位に
ある支持部材であり、第１の絶縁部材８を支持する支持
体１０ａとその支持部を包囲する包囲体１０ｂとから構
成されている。Reference numeral 10 denotes a support member disposed between the second insulating members 9, attached to the bottom plate of the box body 1, supporting the first insulating member 8, and at ground potential, supporting the first insulating member 8. It is composed of a support 10a and an enclosure 10b surrounding the support.
上記のように構成されたこの考案の母線支持装置におい
ては、母線２が第１の絶縁部材８及び第２の絶縁部材９
によってその間隔が保たれており、母線２の相間、対地
間の絶縁は第１の絶縁部材８及び第２の絶縁部材９の表
面沿面距離で保持している。In the bus bar support device of this invention configured as described above, the bus bar 2 is connected to the first insulating member 8 and the second insulating member 9.
Insulation between the phases of the bus bar 2 and the ground is maintained by the surface creepage distance of the first insulating member 8 and the second insulating member 9.
捷た、相間の短絡事故時、母線２間に発生する力に耐え
得る支持強度は第１の絶縁部材８、第２の絶縁部材９の
圧縮並びに引張強度で持たせている。The compressive and tensile strengths of the first insulating member 8 and the second insulating member 9 provide support strength capable of withstanding the force generated between the busbars 2 in the event of a short-circuit accident between the phases.
そして、第１の絶縁部材８は第２の絶縁部材９間に配置
された対地電位にある支持部材１０によって支持されて
いる。The first insulating member 8 is supported by a support member 10 placed between the second insulating members 9 and at ground potential.
しかるに、第１の絶縁部材８及び第２の絶縁部材９の劣
化等によって母線２の相間、対地間の絶縁耐力が低下し
、沿面絶縁破壊に至っても、第２の絶縁部材９間に配置
した対地電位にある支持部材１０の作用により、相間の
短絡事故に先立って対地間の地絡事故が起こる。However, even if the dielectric strength between the phases and ground of the bus bar 2 decreases due to deterioration of the first insulating member 8 and the second insulating member 9, resulting in creepage breakdown, the Due to the action of the support member 10 at ground potential, a ground-to-ground fault occurs prior to a short-circuit fault between phases.
従って、対地間の地絡事故にて母線２の事故を見つける
ことができ、母線２の事故による電気機器の被害が小さ
なものとなり、電気的信頼性に優れている。Therefore, a fault in the bus bar 2 can be detected in a ground fault fault between the bus bar 2 and the ground, and damage to electrical equipment due to a fault in the bus bar 2 is minimized, resulting in excellent electrical reliability.
また、相間の短絡事故時、母線２間に発生する大きな力
に耐え得る支持強度を第１の絶縁部材８、第２の絶縁部
材９の圧縮並びに引張強度で持たせているので、支持碍
子構造に比べて大形化せず安価であり、充分な支持強度
が得られ機械的信頼性に優れている。In addition, since the compressive and tensile strengths of the first insulating member 8 and the second insulating member 9 provide support strength capable of withstanding the large force generated between the busbars 2 in the event of a short-circuit accident between phases, the supporting insulator structure It is less bulky and cheaper than , and has sufficient support strength and excellent mechanical reliability.
以上のように、第１図及び第２図に示す従来の母線支持
装置における相間の短絡事故を起こす欠点、第３図及び
第４図に示す従来の母線支持装置に釦ける機械的信頼性
を得るための支持碍子６の大形化、コスト高の欠点を同
時に解消した高信頼性の母線支持装置を得ることができ
る。As mentioned above, the drawbacks of the conventional busbar support devices shown in FIGS. 1 and 2 that cause a short circuit accident between phases, and the mechanical reliability of the conventional busbar support devices shown in FIGS. 3 and 4 are explained. It is possible to obtain a highly reliable bus bar support device that simultaneously eliminates the disadvantages of increasing the size of the support insulator 6 and high cost.
なお、上記実施例では第２の絶縁部材９を各母線２間に
２個配置して第１の絶縁部材８に設け、その第２の絶縁
部材９間に対地電位にある支持部材１０を配置した場合
につい述べたが、第２の絶縁部材９を各母線２間に３個
あるいは４個以上配置して第１の絶縁部材８に設け、相
間の短絡事故に先立って対地間の地絡事故が起こるよう
その第２の絶縁部材９間に支持部材１０を配置するよう
にしてもよい。In the above embodiment, two second insulating members 9 are arranged between each bus bar 2 and provided on the first insulating member 8, and a support member 10 at ground potential is arranged between the second insulating members 9. As described above, if three or more second insulating members 9 are arranged between each bus bar 2 and provided on the first insulating member 8, a ground fault between the phases and the ground can be prevented before a short circuit between phases. A support member 10 may be arranged between the second insulating members 9 so that this occurs.
また、上記実施例では支持部材１０が支持体１０ａと包
囲体１０ｂとから構成された場合、即ち、第１の絶縁部
材８の支持部を包囲して成る場合について述べたが、多
少の効果は低下するが包囲体１０ｂを省略し、支持体１
０ａのみで支持部材１０を構成するようにしてもよい。Further, in the above embodiment, the case where the support member 10 is composed of the support body 10a and the enclosure body 10b, that is, the case where it surrounds the support part of the first insulating member 8, has been described, but there are some effects. However, the enclosure 10b is omitted and the support 1
The support member 10 may be configured only with Oa.
筐た、上記実施例では母線２を３個設けた場合、即ち、
３相母線について述べたが、この母線２は少なくとも２
個有しておればよく、上記実施例と同様の効果を奏する
。In the above embodiment, when three busbars 2 are provided, that is,
Although I mentioned the three-phase bus, this bus 2 has at least two phases.
It is only necessary to have each one individually, and the same effects as in the above embodiment can be achieved.
ところで上記説明では、この考案を閉鎖配電盤やバスダ
クトの電気機器に使用されている母線支持装置に適用し
た場合について述べたが、他の電気機器に使用されてい
る母線支持装置についても適用し得ることは勿論のこと
である。By the way, in the above explanation, the invention was applied to a busbar support device used in closed switchboards and bus duct electrical equipment, but it can also be applied to busbar support devices used in other electrical equipment. Of course.
この考案は以上説明した通り、第１の絶縁部材により複
数個の母線を支持し、この第１の絶縁部材に各母線間に
複数個配置された第２の絶縁部材を設け、この第２の絶
縁部材間に対地電位にある支持部材を設けて第１の絶縁
部材を支持するようにしたので、電気的信頼性並びに機
械的信頼性に優れた母線支持装置を得ることができる。As explained above, in this invention, a plurality of busbars are supported by a first insulating member, a plurality of second insulating members arranged between each busbar are provided on this first insulating member, and this second insulating member is provided with a plurality of second insulating members arranged between each busbar. Since the support member at ground potential is provided between the insulating members to support the first insulating member, it is possible to obtain a bus bar support device with excellent electrical reliability and mechanical reliability.
第１図は従来の母線支持装置を示す断面正面図、第２図
は第１図のＨ−目線における断面図、第３図は従来の別
のタイプの母線支持装置を示す断面正面図、第４図は第
３図のｒＶ−ｒＶ線における断面図、第５図はこの考案
の一実施例による母線支持装置を示す断面正面図、第６
図は第５図のＶＩ−ＶＩ線における断面図、第７図は第
５図の■−■線にむける断面図である。
図において、２は母線、８は第１の絶縁部材、９は第２
の絶縁部材、１０は支持部材である。
なお、図中同一符号は同一または相当部分を示す。FIG. 1 is a sectional front view showing a conventional bus bar support device, FIG. 2 is a sectional view taken along the H-line in FIG. 1, and FIG. 3 is a sectional front view showing another type of conventional bus bar support device. 4 is a sectional view taken along the rV-rV line in FIG. 3, FIG. 5 is a sectional front view showing a bus bar support device according to an embodiment of this invention, and
The figure is a sectional view taken along the line VI--VI in FIG. 5, and FIG. 7 is a sectional view taken along the line ■--■ in FIG. In the figure, 2 is a bus bar, 8 is a first insulating member, and 9 is a second insulating member.
10 is an insulating member, and 10 is a support member. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
各母線間に複数個装置されて上記第１の絶縁部材に設け
られた第２の絶縁部材と、この第２の絶縁部材間に配置
されて上記第１の絶縁部材を支持し、対地電位にある支
持部材とを備えた母線支持装置。 （２）第１の絶縁部材と第２の絶縁部材とは一体に構成
されたことを特徴とする実用新案登録請求の範囲第１項
記載の母線支持装置。 （３）第２の絶縁部材は各母線間に２個配置されたこと
を特徴とする実用新案登録請求の範囲第１項または第２
項記載の母線支持装置。 （４）支持部材は第１の絶縁部材の支持部を包囲して戒
ることを特徴とする実用新案登録請求の範囲第１項ない
し第３項の何れかに記載の母線支持装置。[Claims for Utility Model Registration] (υ A first insulating member supporting a plurality of bus bars, and a plurality of second insulating members installed between each of the bus bars and provided on the first insulating member. , and a support member disposed between the second insulating members to support the first insulating member and being at ground potential. (2) The first insulating member and the second insulating member. The bus bar support device according to claim 1 of the utility model registration claim, characterized in that the bus bar support device is configured integrally with the bus bar. (3) The bus bar support device is characterized in that two second insulating members are disposed between each bus bar. Scope of claims for utility model registration, paragraph 1 or 2
Busbar support device as described in Section 1. (4) The busbar support device according to any one of claims 1 to 3, wherein the support member surrounds and supports the support portion of the first insulating member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13510779U JPS5936090Y2 (en) | 1979-09-29 | 1979-09-29 | busbar support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13510779U JPS5936090Y2 (en) | 1979-09-29 | 1979-09-29 | busbar support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5652410U JPS5652410U (en) | 1981-05-09 |
| JPS5936090Y2 true JPS5936090Y2 (en) | 1984-10-05 |
Family
ID=29366660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13510779U Expired JPS5936090Y2 (en) | 1979-09-29 | 1979-09-29 | busbar support device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5936090Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60213454A (en) * | 1984-04-02 | 1985-10-25 | Otsuka Kamu Kk | Automatic tool changer |
| JPS61200949U (en) * | 1985-06-04 | 1986-12-16 | ||
| JP4626304B2 (en) * | 2005-01-06 | 2011-02-09 | 富士電機システムズ株式会社 | Power distribution board bus support device |
| JP6706168B2 (en) * | 2016-07-19 | 2020-06-03 | 株式会社三社電機製作所 | Power system |
-
1979
- 1979-09-29 JP JP13510779U patent/JPS5936090Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5652410U (en) | 1981-05-09 |
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