JPH0428200Y2 - - Google Patents
Info
- Publication number
- JPH0428200Y2 JPH0428200Y2 JP1985175799U JP17579985U JPH0428200Y2 JP H0428200 Y2 JPH0428200 Y2 JP H0428200Y2 JP 1985175799 U JP1985175799 U JP 1985175799U JP 17579985 U JP17579985 U JP 17579985U JP H0428200 Y2 JPH0428200 Y2 JP H0428200Y2
- Authority
- JP
- Japan
- Prior art keywords
- inspection shaft
- wall
- lead
- lead wire
- support
- 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
- 238000007689 inspection Methods 0.000 claims description 22
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000005494 condensation Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Hydraulic Turbines (AREA)
- Motor Or Generator Frames (AREA)
Description
【考案の詳細な説明】
（考案の属する技術分野）
この考案はバルブ水車発電機の点検シヤフト内
を貫通する固定子リード線の支持構造に関する。[Detailed description of the invention] (Technical field to which the invention pertains) This invention relates to a support structure for a stator lead wire that passes through the inspection shaft of a valve water turbine generator.
（従来技術とその問題点）
水没状態で運転されるバルブ水車発電機は収納
されるケース内部と地上の大気とを連通する中空
の点検シヤフトが設けられ、水車発電機に発生し
た電力は固定子巻線からの固定子リード線によつ
て導かれるが、この固定子リード線は点検シヤフ
ト内壁に設けられたリード支えによつて支持され
ながら点検シヤフトを貫通して外部へ引出され
る。第２図は前述した固定子リード線の支持構造
を示す点検シヤフトの縦断面図で、１は点検シヤ
フトである。この点検シヤフト１の内壁の複数個
所よりリード支え２を突出させてこのリード支え
２の先端にそれぞれ絶縁性のクランプ３を取付
け、固定子リード線４はこのクランプ３により複
数個所にわたつて保持されるものである。この点
検シヤフト１は水中に没しているので外側の水の
温度と内側の空気の温度との差により点検シヤフ
ト１の内壁には結露水を生ずるが、リード支え２
は水平に点検シヤフト１内壁に取付けられている
ので点検シヤフト１内壁に生じた結露水はリード
支え２を伝わり、さらにリード支え２先端のクラ
ンプ３を伝わつて固定子リード線４周辺に到達す
ることがある。この場合固定子リード線４は絶縁
被覆されているが、たとえばクラツクやピンホー
ルなどがあつて絶縁性が不良状態のときは発電機
の地絡事故を引き起こす危険性がある。(Prior art and its problems) A valve water turbine generator operated in a submerged state is equipped with a hollow inspection shaft that communicates the inside of the housing case with the atmosphere on the ground, and the power generated in the water turbine generator is transferred to the stator. The stator lead wire from the winding is led out through the inspection shaft while being supported by a lead support provided on the inner wall of the inspection shaft. FIG. 2 is a longitudinal cross-sectional view of the inspection shaft showing the support structure for the stator lead wire described above, and 1 is the inspection shaft. Lead supports 2 are made to protrude from multiple locations on the inner wall of the inspection shaft 1, and insulating clamps 3 are attached to the tips of the lead supports 2, respectively, and the stator lead wires 4 are held at multiple locations by the clamps 3. It is something that Since this inspection shaft 1 is submerged in water, dew condensation occurs on the inner wall of the inspection shaft 1 due to the difference between the temperature of the water outside and the temperature of the air inside.
is installed horizontally on the inner wall of the inspection shaft 1, so that the condensed water that forms on the inner wall of the inspection shaft 1 is transmitted through the lead support 2, further transmitted through the clamp 3 at the tip of the lead support 2, and reaches the vicinity of the stator lead wire 4. There is. In this case, the stator lead wire 4 is coated with insulation, but if the insulation is poor due to cracks or pinholes, for example, there is a risk of causing a ground fault in the generator.
（考案の目的）
この考案の上述した事情に鑑み点検シヤフト内
壁に生じた結露水が固定子リード線に集積しない
ようにリード支え構造を改良し、発電機の地絡事
故を防止することを目的とする。(Purpose of the invention) In view of the above-mentioned circumstances, the purpose of this invention is to improve the lead support structure so that the dew condensation water formed on the inner wall of the inspection shaft does not accumulate on the stator lead wire, thereby preventing ground faults in the generator. shall be.
（考案の要点）
この考案では上記目的達成のためリード支え構
造を次のようにした。すなわちリード支えを傾斜
させて点検シヤフト内壁に取付け、結露水がリー
ド支えおよびクランプを伝わつて下方へ流れない
ようにした。(Key points of the invention) In order to achieve the above objectives, this invention uses the following lead support structure. That is, the lead support was installed at an angle on the inner wall of the inspection shaft to prevent condensed water from flowing downward through the lead support and clamp.
（考案の実施例）
第１図はこの考案の一実施例である固定子リー
ド線の支持構造を示す点検シヤフトの縦断面図
で、点検シヤフト１の内壁より突出して設けられ
るリード支え１２は、そのシヤフト内壁取付位置
よりその先端が上方にあるように傾斜して取付け
られ、その先端に取付けられたクランプ３によ
り、固定子リード線４を保持するようにした。(Embodiment of the invention) FIG. 1 is a longitudinal cross-sectional view of an inspection shaft showing a stator lead wire support structure according to an embodiment of the invention. The stator lead wire 4 is attached obliquely so that its tip is above the shaft inner wall attachment position, and the stator lead wire 4 is held by a clamp 3 attached to the tip.
（考案の効果）
この考案ではリード支えの点検シヤフト内壁側
が低く、リード支え先端側が高くなるようにリー
ド支えを傾斜させて取付けたので点検シヤフト内
壁に生じた結露水は固定子リード線側に到達する
ことなく下方へ落下してしまうので発電機の固定
子リード線の地絡事故は防止される。(Effects of the invention) In this invention, the lead support is installed at an angle so that the inner wall of the inspection shaft is lower and the tip of the lead support is higher, so that the condensed water that forms on the inner wall of the inspection shaft reaches the stator lead wire side. Since the stator lead wire of the generator falls downward without any damage, a ground fault accident of the stator lead wire of the generator is prevented.
第１図はこの考案の一実施例である固定子リー
ド線支持構造を示す点検シヤフトの縦断面図、第
２図は従来の固定子リード線支持構造を示す点検
シヤフトの縦断面図である。
１……点検シヤフト、３……クランプ、４……
固定子リード線、２，１２……リード支え。
FIG. 1 is a longitudinal sectional view of an inspection shaft showing a stator lead wire support structure according to an embodiment of the invention, and FIG. 2 is a longitudinal sectional view of an inspection shaft showing a conventional stator lead wire support structure. 1...Inspection shaft, 3...Clamp, 4...
Stator lead wire, 2, 12...Lead support.
Claims (1)
子リード線を、シヤフト内壁より突出して設けら
れた複数本のリード支えの先端でクランプを介し
て保持する構造において；前記点検シヤフトの内
壁に生じる結露水がリード支えおよびクランプを
伝わつて下方へ流れないように、前記リード支え
を傾斜させて前記点検シヤフト内壁に取付けたこ
とを特徴とするバルブ水車発電機の固定子リード
線支持構造。 In a structure in which a stator lead wire passing through a hollow vertical inspection shaft is held via a clamp at the tips of a plurality of lead supports protruding from an inner wall of the shaft; condensation water generated on the inner wall of the inspection shaft. A stator lead wire support structure for a valve water turbine generator, characterized in that the lead support is inclined and attached to the inner wall of the inspection shaft so that the lead support and the clamp do not flow downward through the lead support and the clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985175799U JPH0428200Y2 (en) | 1985-11-15 | 1985-11-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985175799U JPH0428200Y2 (en) | 1985-11-15 | 1985-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6284347U JPS6284347U (en) | 1987-05-29 |
| JPH0428200Y2 true JPH0428200Y2 (en) | 1992-07-08 |
Family
ID=31115453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985175799U Expired JPH0428200Y2 (en) | 1985-11-15 | 1985-11-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0428200Y2 (en) |
-
1985
- 1985-11-15 JP JP1985175799U patent/JPH0428200Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6284347U (en) | 1987-05-29 |
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