JPH05217757A - Easy method of proofing transformer bushing against salt - Google Patents
Easy method of proofing transformer bushing against saltInfo
- Publication number
- JPH05217757A JPH05217757A JP1999592A JP1999592A JPH05217757A JP H05217757 A JPH05217757 A JP H05217757A JP 1999592 A JP1999592 A JP 1999592A JP 1999592 A JP1999592 A JP 1999592A JP H05217757 A JPH05217757 A JP H05217757A
- Authority
- JP
- Japan
- Prior art keywords
- knob
- tape
- weather
- packing
- putty
- 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.)
- Granted
Links
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、既設の柱上トランス
ブッシングを耐塩化するための工事方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing an existing pole-mounted transbushing to withstand chlorination.
【0002】[0002]
【技術的背景】トランスブッシングは高圧引下げ線をト
ランスに導入する部分に用いる部材であり、通常、トラ
ンス外板に固定の碍子スカート部内において、トランス
内に接続の端子金具と高圧引下げ線を接続する。[Technical background] A trans bushing is a member used for introducing a high-voltage pull-down wire to a transformer. Usually, a terminal metal fitting and a high-voltage pull-down wire are connected in the transformer in an insulator skirt portion fixed to a transformer outer plate. ..
【0003】このトランスブッシングにおいて、海岸線
に近い塩害地で使用されるものは図6、図7に示すよう
に耐塩化処理が施されている。すなわち、図6のもの
は、高圧引下げ線(以下PDCという)1の端部にモー
ルドコーン2を形成し、その導体1aとトランス内への
リード線3とを圧着接続し、モールドコーン2をトラン
ス外板4に固定の碍子5に押し込み接着し、接続部にエ
ポキシ樹脂6を注入して裸充電部を隠蔽している。ま
た、図7に示すものは、リード線3端のくさび型コネク
タ7にPDC1の導体1aを挿入し、押えねじ8を碍子
5にねじ込むことによって、前記くさびコネクタ7を縮
径させてリード線3とPDC1を接続し、さらに、押え
ねじ8の上部にパッキング9を挿入して、そのめねじに
押えねじ10をねじ込み、碍子5、押えねじ8、パッキ
ング9及び押えねじ10によって裸充電部への塩分の侵
入を阻止し、トランス外板4と裸充電部との沿面閃絡
(地絡)が生じないようにしている。In this transbushing, those used in salt-damaged areas near the coastline are subjected to a chlorination-resistant treatment as shown in FIGS. 6 and 7. That is, in the structure shown in FIG. 6, a mold cone 2 is formed at the end of a high voltage pull-down wire (hereinafter referred to as PDC) 1, the conductor 1a and a lead wire 3 into the transformer are crimp-connected, and the mold cone 2 is connected to the transformer. An insulator 5 fixed to the outer plate 4 is pressed and adhered, and an epoxy resin 6 is injected into the connection portion to hide the bare charging portion. Further, in the structure shown in FIG. 7, the conductor 1a of the PDC 1 is inserted into the wedge-shaped connector 7 at the end of the lead wire 3 and the cap screw 8 is screwed into the insulator 5 to reduce the diameter of the wedge connector 7 and lead wire 3 And PDC1 are connected, and further, the packing 9 is inserted into the upper part of the holding screw 8, the holding screw 10 is screwed into the female screw, and the insulator 5, the holding screw 8, the packing 9 and the holding screw 10 are connected to the bare charging part. The salt content is prevented from entering and the occurrence of a surface flashover (ground fault) between the transformer outer plate 4 and the bare charging section is prevented.
【0004】一方、一般の地域では、経済性を勘案し
て、前述の耐塩型ブッシングを使用せず、図5に示すも
のを使用している。すなわち、トランス外板4に固定の
碍子スカート部5a内において、リード線3端の接続金
具11を露出状態で設け、この接続金具11の孔11a
に、スカート部5a開口縁の切欠12から導びいたPD
C1を挿通し、接続金具11にその先端からねじ込まれ
たノブ13により圧接リング11bなどを介してPDC
1を接続金具11に圧接接続している(図1、図2参
照)。On the other hand, in the general area, in consideration of economy, the salt-resistant bushing described above is not used, but the one shown in FIG. 5 is used. That is, in the insulator skirt portion 5a fixed to the transformer outer plate 4, the connection fitting 11 at the end of the lead wire 3 is provided in an exposed state, and the hole 11a of this connection fitting 11 is provided.
PD led from the notch 12 at the opening edge of the skirt portion 5a
The PDC is inserted through the C1 and the press fitting ring 11b and the like by the knob 13 screwed into the connection fitting 11 from its tip.
1 is pressure-connected to the connection fitting 11 (see FIGS. 1 and 2).
【0005】このブッシングは裸充電部Pが露出してい
るため、同図点部分aのごとく塩分が付着し易く、それ
が堆積すると、裸充電部Pとトランス外板4とが接続
し、すなわち沿面閃絡が生じ易いが、一般の地域では、
海岸線のように塩害はなく、このブッシングで十分であ
る。Since the bare charging portion P is exposed in this bushing, salt is likely to adhere to the bushing as shown by a point a in the figure, and when it is deposited, the bare charging portion P and the transformer outer plate 4 are connected, that is, Creeping flashovers are likely to occur, but in general areas
There is no salt damage like the coastline, and this bushing is sufficient.
【0006】しかしながら、何十年に一度か二度の風台
風がこれらの地域に接近又は上陸すると、海水の飛沫が
臨界地域(塩害地域)を越えて、これら一般の地域のか
なり奥まで運び込まれる場合がある。この場合、上述の
塩分の堆積が生じ、沿面閃絡が生じたり、トラッキング
が生じたりする。However, if wind typhoons approach or land on these areas once or twice every several decades, seawater droplets will be transported beyond the critical area (salt damage area) to a considerable depth in these general areas. There are cases. In this case, the above-mentioned salt content is accumulated, which causes creeping flashover and tracking.
【0007】この防止手段として、一般の地域も図6、
図7に示す耐塩型ブッシングに交換したり、採用すれば
よいが、その費用は膨大となり、また、その効果は何十
年に一度と極めて少なく、投資効率から好ましくない。As a means for preventing this, general areas are also shown in FIG.
The salt-resistant bushing shown in FIG. 7 may be replaced or adopted, but the cost is enormous, and the effect is extremely small once every several decades, which is not preferable from the investment efficiency.
【0008】[0008]
【発明が解決しようとする課題】この発明は以上の点に
鑑み、上記一般の地域に既に設置されているブッシング
の耐塩化を低コストにして簡単にかつ活線状態でなし得
るようにすることを課題とする。SUMMARY OF THE INVENTION In view of the above points, the present invention is to provide a bushing already installed in the above general area with low cost of chlorination resistance, which can be easily and in a live state. Is an issue.
【0009】[0009]
【課題を解決するための手段】上記課題を解決するため
に、この発明にあっては、図5に示した裸充電部Pが露
出した一般地域の柱上トランスブッシングのPDCの挿
通用切欠内面とPDCとの間隙に耐候性の絶縁パテを詰
め込み、スカート部開口縁とノブの間には耐候性・自己
融着性絶縁テープを重ね巻きしてその間隙を閉塞し、伸
縮可能な耐候性環状パッキングをノブを通して前記重ね
巻き層の外面に嵌めることとしたのである。In order to solve the above-mentioned problems, according to the present invention, the inner surface of the notch for insertion of the PDC of the pole-mounted transbushing in the general area where the bare charging portion P shown in FIG. 5 is exposed. A weatherproof insulating putty is packed in the gap between the PDC and the PDC, and a weatherproof and self-fusing insulating tape is wrapped between the opening edge of the skirt and the knob to close the gap, and a stretchable weatherproof ring. The packing was fitted on the outer surface of the lap winding layer through the knob.
【0010】[0010]
【作用】このように構成するこの発明に係る耐塩化法に
よると、テープ巻き、パテ又はブッシュの嵌め込み及び
パッキングの嵌め込みという簡易作業であるため、柱上
でも容易に、かつ円滑に作業をなし得る。そのテープ巻
き及び嵌め込みによって裸充電部への塩分の侵入は阻止
され、その侵入は何十年に一度程度であるため、テープ
巻き等でその阻止効果は十分に得ることができる。According to the chlorination-resistant method of the present invention having the above-described structure, the simple work of winding the tape, fitting the putty or bush, and fitting the packing can be performed easily and smoothly even on the pillar. .. The tape winding and fitting prevent the salt content from invading the bare charging part, and the salt invasion is about once every several decades. Therefore, the tape winding or the like can sufficiently obtain the blocking effect.
【0011】[0011]
【実施例】図1、図2に示すように、まず、PDC挿入
用切欠12に耐候性の絶縁パテ14を詰め込んで、その
隙間を閉塞し、ノブ13とスカート部5a開口縁との間
にパテテープなどの耐候性の自己融着性絶縁テープ15
を重ね巻きして、その間隙を閉塞する。つぎに、図3で
示す耐候性の環状弾性パッキング16をノブ13を通し
て上記重ね巻きの外面に嵌め、パッキング16の弾性力
(収縮力)でもって重ね巻き層を圧縮し、そのテープ1
5のほつれを防ぐ。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, first, a weatherproof insulating putty 14 is packed in a PDC insertion notch 12 to close the gap, and between the knob 13 and the opening edge of the skirt 5a. Weather resistant self-fusing insulating tape 15 such as putty tape
And wrap it to close the gap. Next, the weather-resistant annular elastic packing 16 shown in FIG. 3 is fitted onto the outer surface of the lap winding through the knob 13, and the lap winding layer is compressed by the elastic force (contracting force) of the packing 16, and the tape 1
Prevent fray of 5.
【0012】なお、絶縁パテ14に代えて、図4a、
b、cに示す各種形状の耐候性弾性ブッシュ17を採用
することができる。Incidentally, instead of the insulating putty 14, FIG.
Weatherproof elastic bushes 17 of various shapes shown in b and c can be adopted.
【0013】[0013]
【発明の効果】この発明は以上のように構成し、テープ
巻きなどを行うだけであるので、柱上活線状態でその作
業を行うことができ、またその作業も容易である。この
ため、低コストかつ簡単に、既設のブッシングを耐塩化
処理できる。Since the present invention is constructed as described above and only the tape winding or the like is carried out, the work can be carried out in the live-on-column state, and the work is also easy. For this reason, the existing bushing can be subjected to chlorination treatment easily at low cost.
【図1】一実施例の斜視図FIG. 1 is a perspective view of an embodiment.
【図2】同実施例の要部断面図FIG. 2 is a cross-sectional view of the main part of the embodiment.
【図3】同実施例のパッキングの斜視図FIG. 3 is a perspective view of the packing of the embodiment.
【図4】a、b、cは絶縁ブッシュの各例の斜視図4A, 4B and 4C are perspective views of examples of insulating bushes.
【図5】一般のトランスブッシングの断面図FIG. 5 is a cross-sectional view of a general trans bushing.
【図6】塩害地のトランスブッシングの断面図[Figure 6] Cross-sectional view of trans bushing in salt-damaged area
【図7】塩害地のトランスブッシングの断面図[Fig. 7] Cross-sectional view of trans bushing in salt damage area
1 高圧引下げ線(PDC) 1a 導体 2 モールドコーン 3 リード線 4 トランス外板 5 碍子 5a 碍子スカート部 11 接続金具 12 切欠(PDC挿入孔) 13 ノブ 14 絶縁パテ 15 絶縁テープ 16 パッキング 17 弾性ブッシュ P 裸充電部 1 High-voltage pull-down wire (PDC) 1a Conductor 2 Mold cone 3 Lead wire 4 Transformer outer plate 5 Insulator 5a Insulator skirt part 11 Connection fitting 12 Notch (PDC insertion hole) 13 Knob 14 Insulating putty 15 Insulating tape 16 Packing 17 Elastic bush P Naked Charging section
フロントページの続き (72)発明者 岸 克己 東大阪市岩田町2丁目3番1号 タツタ電 線株式会社内Continuation of the front page (72) Inventor Katsumi Kishi 2-3-1 Iwata-cho, Higashiosaka City Tatsuta Electric Wire Co., Ltd.
Claims (2)
碍子スカート部を形成し、このスカート部内に金属製接
続金具を露出状態で設け、この接続金具に前記スカート
部開口縁の切欠から導びいた高圧引下げ線を挿通し、接
続金具にその先端からねじ込まれたノブによって前記高
圧引下げ線を接続金具に圧接接続したトランスブッシン
グの耐塩化処理に際し、前記切欠内面と高圧引下げ線と
の間隙に耐候性の絶縁パテを詰め込み、前記スカート部
開口縁とノブの間には耐候性の自己融着性絶縁テープを
重ね巻きしてその間隙を閉塞し、伸縮可能な耐候性環状
パッキングをノブを通して前記重ね巻き層の外面に嵌め
ることを特徴とするトランスブッシングの簡易耐塩化
法。1. A cylindrical insulator skirt portion is formed on an insulator base portion fixed to a transformer outer plate, and a metallic connecting fitting is provided in the skirt portion in an exposed state, and the connecting fitting is provided with a notch at an opening edge of the skirt portion. Insert the high-pressure pull-down wire that has been introduced, and use a knob that is screwed from the tip of the connection fitting to connect the high-pressure pull-down wire to the connection fitting by pressure. A weather-resistant insulating putty is packed in, and a weather-resistant self-fusing insulating tape is wrapped between the opening edge of the skirt and the knob to close the gap, and a stretchable weather-resistant annular packing is passed through the knob. A simple chlorination resistant method of trans bushing, characterized in that it is fitted on the outer surface of the lap winding layer.
塩化法において、その絶縁パテに代えて、耐候性の弾性
ブッシュとしたことを特徴とするトランスブッシングの
簡易耐塩化法。2. The simple bushing proofing method for a trans bushing according to claim 1, wherein the insulating putty is replaced by a weatherproof elastic bush.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1999592A JPH0824090B2 (en) | 1992-02-05 | 1992-02-05 | Simplification of anti-chlorination method of trans bushing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1999592A JPH0824090B2 (en) | 1992-02-05 | 1992-02-05 | Simplification of anti-chlorination method of trans bushing |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05217757A true JPH05217757A (en) | 1993-08-27 |
JPH0824090B2 JPH0824090B2 (en) | 1996-03-06 |
Family
ID=12014747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1999592A Expired - Lifetime JPH0824090B2 (en) | 1992-02-05 | 1992-02-05 | Simplification of anti-chlorination method of trans bushing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0824090B2 (en) |
-
1992
- 1992-02-05 JP JP1999592A patent/JPH0824090B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0824090B2 (en) | 1996-03-06 |
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