JPS6013363B2 - Interconductor insulation device - Google Patents

Interconductor insulation device

Info

Publication number
JPS6013363B2
JPS6013363B2 JP8566477A JP8566477A JPS6013363B2 JP S6013363 B2 JPS6013363 B2 JP S6013363B2 JP 8566477 A JP8566477 A JP 8566477A JP 8566477 A JP8566477 A JP 8566477A JP S6013363 B2 JPS6013363 B2 JP S6013363B2
Authority
JP
Japan
Prior art keywords
insulation
barrier
insulating
insulating barrier
mounting bracket
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
Application number
JP8566477A
Other languages
Japanese (ja)
Other versions
JPS5421585A (en
Inventor
哲雄 吉田
信男 正木
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP8566477A priority Critical patent/JPS6013363B2/en
Publication of JPS5421585A publication Critical patent/JPS5421585A/en
Publication of JPS6013363B2 publication Critical patent/JPS6013363B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Installation Of Bus-Bars (AREA)
  • Patch Boards (AREA)

Description

【発明の詳細な説明】 本発明は、閉鎖配電盤や母線ダクト等で気中を有する導
体間に絶縁バーリヤを取付けて成る導体間絶縁装置に関
するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an interconductor insulating device in which an insulating barrier is attached between conductors in the air in a closed switchboard, busbar duct, or the like.

気中を有する導体間の耐圧特性の向上には、絶縁バーリ
ャが用いられる。
An insulating barrier is used to improve the withstand voltage characteristics between conductors in the air.

例えば、第1図は、従来の相非分割母線ダクト内の前面
図で、3相中の2相について示しており、導体1,1間
の中心部に絶縁バーリャ2を酌付け「絶縁距離を等価的
に距離a十aに伸ばし相間の耐圧向上を図っている。ま
た、絶縁バーリャ2を取付ける金具4は、通常20〜4
0脚幅の鉄板をL字形に加工したものであり、絶縁バー
リャ2の大きさに合せて、固定できる程度の間隔で取付
けられる。この場合、従来は第1図の導体間絶縁距離a
十aと対地間絶縁距離bとの関係は、支持碍子3の高さ
によって決定され、一般には、a+aくbになる。
For example, Figure 1 is a front view of a conventional non-phase split busbar duct, showing two of the three phases, and an insulation barrier 2 is placed in the center between the conductors 1 and 1 to maintain the insulation distance. The distance is equivalently extended to a ten a to improve the withstand voltage between the phases.Furthermore, the metal fittings 4 for attaching the insulation barrier 2 are usually 20 to 4
It is made by processing a zero leg width iron plate into an L shape, and can be installed at intervals that allow it to be fixed according to the size of the insulating barrier 2. In this case, conventionally the insulation distance a between the conductors in Fig. 1 was
The relationship between 10a and the ground insulation distance b is determined by the height of the support insulator 3, and is generally a+a×b.

このため、万一機器の耐圧レベル以上の異常電圧が侵入
した場合、最初に導体間絶瀞粛矩機a+aの絶縁耐圧が
失なわれ、フラッシュオーバ事故を起こす。このフラッ
シュオーバは、相間短絡であるため、地絡、短絡より短
絡電流が増大し、事故時の損傷や範囲の拡大および付属
機器への事故波及が大きくなる。また、事故とは関係な
く、絶縁バーリャ2とか支持碍子3の清掃点検時等に、
あやまって、第1図の例で右方向からの曲げ応力を加え
た場合、支持点に集中応力を受け、絶縁バーリャ2は、
容易に亀裂が入り、はずれてしまった。
Therefore, in the event that an abnormal voltage higher than the withstand voltage level of the equipment enters the equipment, the insulation withstand voltage of the interconductor isolation rectifier a+a is first lost, causing a flashover accident. Since this flashover is a phase-to-phase short circuit, the short-circuit current increases more than a ground fault or short circuit, which increases the damage caused by the accident, the expansion of the range, and the spread of the accident to attached equipment. In addition, unrelated to the accident, when cleaning and inspecting the insulation barrier 2 or the support insulator 3,
If you accidentally apply a bending stress from the right in the example shown in Figure 1, the insulating barrier 2 will receive concentrated stress at the support point, and the insulation barrier 2 will
It cracked easily and came off.

本発明の目的は、絶縁バーリャの取付金具にて支持する
に当り、この取付金具の大きさを変えると同時に、更に
一枚追加して絶縁バーリャを両側から侠持することによ
り、相間と対地間の絶縁協調を図り、また、絶縁バーリ
ャ、固定を強固なものにする導体間絶縁装置を提供する
ことにある。
An object of the present invention is to support the insulating barrier with the mounting bracket, by changing the size of the mounting bracket and at the same time adding one more piece to support the insulating barrier from both sides, thereby providing a barrier between the phase and the ground. An object of the present invention is to provide an inter-conductor insulating device that achieves insulation coordination between conductors, and also strengthens the insulation barrier and fixation.

以下、本発明の一実施例を第2図を参照して説明する。
第2図に於て、導体、絶縁バーリャ2、支持碍子3の各
部は、第1図とまった〈同様であるが、取付金具4が異
なる。即ち第2図の取付金具4は、第1図のものと基本
的には同様の20〜40肋幅のL字形鉄板のものである
が、高さが異なる。即ち、この高さは、第2図に示す対
地間絶縁c寸法に関係るものであり、c寸法がa+a>
cとなるように取付金具4の高さを設定する。また各相
導体1に対向して取付けるため、絶縁バーリャ2の基部
両側に取付けるものとする。これら各寸法でのフラッシ
オーバ電圧特性を第3図に示す。
An embodiment of the present invention will be described below with reference to FIG.
In FIG. 2, each part of the conductor, insulating barrier 2, and support insulator 3 is the same as in FIG. 1, but the mounting bracket 4 is different. That is, the mounting bracket 4 in FIG. 2 is basically the same as the one in FIG. 1, which is an L-shaped iron plate having a width of 20 to 40 ribs, but the height is different. That is, this height is related to the ground insulation c dimension shown in FIG. 2, and the c dimension is a+a>
The height of the mounting bracket 4 is set so that it becomes c. In addition, since it is attached opposite to each phase conductor 1, it is attached to both sides of the base of the insulating barrier 2. FIG. 3 shows the flashover voltage characteristics at each of these dimensions.

第3図の点孫象イは、機器の耐圧しべルであり、実線口
は、各絶縁距離に対するフラッシュオーバ電圧の関係で
ある。これより、a十a・b・cの各寸法は、当然のこ
とながら、耐圧レベル以上であり、機器の耐圧は、c寸
法で決定されるように取付金具4の位置を設定すること
は勿論のことである。このため、機器の耐圧レベル以上
の異常電圧が侵入した場合、まずフラッシュオーバする
個所は「 c寸法の絶縁バーリャ2の沿面になる。故に
、短絡事故は、a+aの相間ではなく、cの対地間にな
るので絶縁協調が図れる。そして絶縁バーリャ2により
池相への被害も最小限に押えられる。また、敬付金具4
を絶縁バーIJャの両側に設置するため、絶縁バーリャ
4の左右両方からの外部応力に対しても、従来のものよ
り強固になり、取扱いが容易であり、清掃点検時等の作
業が容易に行える。
Symbol A in FIG. 3 is the withstand voltage level of the equipment, and the solid line indicates the relationship between flashover voltage and each insulation distance. From this, each dimension of a, a, b, and c is naturally higher than the withstand pressure level, and it goes without saying that the position of the mounting bracket 4 should be set so that the withstand pressure of the device is determined by the dimension c. It is about. Therefore, if an abnormal voltage higher than the withstand voltage level of the equipment enters, the first place that will flashover will be the creeping surface of the insulation barrier 2 with dimension c. Therefore, the short circuit will occur not between phases a and a, but between phases c and ground. Therefore, insulation coordination can be achieved.The insulation barrier 2 also minimizes damage to the pond phase.
are installed on both sides of the insulating bar IJ, so it is stronger than conventional ones against external stress from both the left and right sides of the insulating bar 4, and is easier to handle, making cleaning and inspection work easier. I can do it.

このような考え方は、バーリャ絶縁を施こした気中を有
する避電器やしや断器の主回路断路部についても、同機
のことが言える。以上のように、本発明によれば、閉鎖
配電盤や母線ダクト等のように、絶縁スペースの縮4・
化のためバーリャ絶縁をする場合、絶縁バーリャの取付
金具の高さを変えたものを、絶縁バーリャの南側に設置
することにより、相間と対地間の絶縁協調を図り、万一
の事故時に対しても地絡電流となるため、事故による損
傷は軽く波及も少ない、尚且つt絶縁バーリャの固定を
強固にし、清掃点検等の作業を容易にする方法を提供す
るものである。
This kind of thinking can also be applied to the main circuit disconnection section of a barrier-insulated air arrester or disconnector. As described above, according to the present invention, insulation space can be reduced, such as in closed switchboards, busbar ducts, etc.
When using barrier insulation for insulation purposes, install insulation barrier mounting brackets with different heights on the south side of the insulation barrier to achieve insulation coordination between phases and ground, and to prevent accidents in the event of an accident. The present invention provides a method in which the damage caused by an accident is light and the spread is small, and the insulating barrier is firmly fixed, making cleaning and inspection work easier.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、従来の閉鎖配電盤の相非分割母線を示す断面
図、第2図は、本発明による導体間絶縁装置の−実施例
を示す断面図、第3図は、従釆と本発明装置による各絶
縁バーリャにおけるフラッシュオーバ電圧特性の関係を
示す特性図である。 1・・・導体、2・・・絶縁バーリヤ、4…取付金具。 第1図第2図 第3図
FIG. 1 is a cross-sectional view showing a phase-unsplitting bus of a conventional closed switchboard, FIG. 2 is a cross-sectional view showing an embodiment of the interconductor insulation device according to the present invention, and FIG. FIG. 3 is a characteristic diagram showing the relationship between flashover voltage characteristics in each insulation barrier of the device. 1...Conductor, 2...Insulation barrier, 4...Mounting bracket. Figure 1 Figure 2 Figure 3

Claims (1)

【特許請求の範囲】[Claims] 1 複数個並置した導体間に、接地面上に取付金具を介
して支持された絶縁バーリヤを設けてなるものに於て、
上記絶縁バーリヤを介した導体間絶縁距離a+aに対し
、上記絶縁バーリヤの基部両側面を挾持する取付金具と
上記導体との距離cを、a+a>cと設定したことを特
徴とする導体間絶縁装置。
1 In the case where an insulating barrier supported on a ground plane via a mounting bracket is provided between a plurality of conductors arranged side by side,
An interconductor insulating device characterized in that a distance c between the conductor and a mounting bracket that clamps both sides of the base of the insulating barrier is set as a+a>c with respect to an insulating distance a+a between the conductors via the insulating barrier. .
JP8566477A 1977-07-19 1977-07-19 Interconductor insulation device Expired JPS6013363B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8566477A JPS6013363B2 (en) 1977-07-19 1977-07-19 Interconductor insulation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8566477A JPS6013363B2 (en) 1977-07-19 1977-07-19 Interconductor insulation device

Publications (2)

Publication Number Publication Date
JPS5421585A JPS5421585A (en) 1979-02-17
JPS6013363B2 true JPS6013363B2 (en) 1985-04-06

Family

ID=13865081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8566477A Expired JPS6013363B2 (en) 1977-07-19 1977-07-19 Interconductor insulation device

Country Status (1)

Country Link
JP (1) JPS6013363B2 (en)

Also Published As

Publication number Publication date
JPS5421585A (en) 1979-02-17

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