CN215300046U - Protective sleeve for grounding outgoing line of generator catchment ring - Google Patents
Protective sleeve for grounding outgoing line of generator catchment ring Download PDFInfo
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- CN215300046U CN215300046U CN202120762256.1U CN202120762256U CN215300046U CN 215300046 U CN215300046 U CN 215300046U CN 202120762256 U CN202120762256 U CN 202120762256U CN 215300046 U CN215300046 U CN 215300046U
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- generator
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- protective sleeve
- protective case
- protective
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Abstract
The utility model discloses a generator catchment ring ground connection lead-out wire protective case, including protective case, set up a plurality of threading pipes in the protective case, fill between threading pipe and the protective case inner wall and establish the insulating layer, protective case's both ends symmetry sets up protective pad piece. The utility model improves the fixing and protecting mode of the generator catchment ring grounding lead-out wire, designs the copper sleeve with the insulating layer filled inside, and adds the threading pipe, thereby ensuring that the grounding lead-out wire can not cause the phenomenon that the lead-out wire moves in the sleeve due to the vibration and other reasons during the operation of the generator; protection gaskets are added at two ends of the protection sleeve, so that the phenomenon that the insulating layer of the outgoing line is worn to cause grounding at the edge parts of two sides of the sleeve is avoided, the extension part is designed to be horn-shaped, certain supporting and separating effects are achieved, and contact and abrasion to the outer wall of the protection sleeve are reduced.
Description
Technical Field
The utility model belongs to the technical field of generator catchment ring ground connection lead-out wire, concretely relates to generator catchment ring ground connection lead-out wire protective case.
Background
The 300MW and above generators adopt a 'water hydrogen' cooling mode, and stator windings are cooled in water. After being input to the excitation side and the machine end water collecting ring of the generator by an internal cold water pump, the cooling water loop of the generator stator winding is led to the water outlet water collecting ring by an insulated water pipe through a water inlet collecting pipe and a stator winding of an insulated water pipe and then discharged, thus forming the cooling water loop of the generator stator winding.
The generator requires the catchment ring to be insulated to the ground when in normal operation, and needs the ground connection when in operation, mainly in order to guarantee the safety of personnel and equipment. The flange between the water collecting ring and the external water pipe is of an insulating structure, the water collecting ring is close to the end part of the generator winding, and a plurality of temperature measuring elements are laid around the water collecting ring. If the temperature measuring loop is not grounded, the end part of the stator winding is damaged or the insulating water conduit is broken down to electrify the water collecting loop, so that the personnel and the equipment on the temperature measuring loop are damaged. Therefore, the water collecting ring is connected with the flange of the external water pipe in operation, and the water collecting ring is grounded through the grounding lead wire.
When a generator set normally runs, due to the reasons of generator installation process, vibration in running, no protective measures of a grounding lead-out wire and the like, an insulating layer of the grounding lead-out wire of the water catchment ring is often damaged, abnormal grounding is carried out in the generator, the resistance value of the lead-out wire is influenced, firstly, the insulation resistance value of the water-cooled generator cannot be normally measured, secondly, preventive test data after the generator is repaired are influenced, the insulation characteristic of the generator and the performance quality of equipment after the generator is repaired cannot be correctly judged, and thirdly, the generator can be checked and processed only after being shut down.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a generator catchment ring ground connection lead-out wire protective case to solve above-mentioned problem.
In order to achieve the above object, the utility model discloses a technical scheme be:
the utility model provides a generator catchment ring earthing lead-out wire protective case, includes protective case, set up a plurality of threading pipes in the protective case, fill out between threading pipe and the protective case inner wall and establish the insulating layer, protective case's both ends symmetry sets up protection gasket.
In order to further realize the utility model discloses, protective case's tip is located to the protection gasket as a whole, including connecting portion and extension, connecting portion cover, and the clamp is established to the periphery cover of connecting portion, and the extension is loudspeaker form, and the one end and the connecting portion of extension are connected, and the other end extends towards the direction of keeping away from protective case.
In order to further realize the utility model discloses, the threading pipe sets up 7 at least, and the dispersed arrangement is in protective sheath intraductal.
In order to further realize the utility model discloses, protective case adopts the copper product.
The utility model discloses compare in prior art's beneficial effect do:
the utility model improves the fixing and protecting mode of the generator catchment ring grounding lead-out wire, designs the copper sleeve with the insulating layer filled inside, and adds the threading pipe, thereby ensuring that the grounding lead-out wire can not cause the phenomenon that the lead-out wire moves in the sleeve due to the vibration and other reasons during the operation of the generator; protection gaskets are added at two ends of the protection sleeve, so that the phenomenon that the insulating layer of the outgoing line is worn to cause grounding at the edge parts of two sides of the sleeve is avoided, the extension part is designed to be horn-shaped, certain supporting and separating effects are achieved, and contact and abrasion to the outer wall of the protection sleeve are reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a perspective view of the protective sheath of the present invention;
the reference numerals have the following meanings: 1. protecting the sleeve; 2. a threading tube; 3. an insulating layer; 4. a protective pad; 5. a connecting portion; 6. an extension portion.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1-2, the protective sleeve for the generator catchment ring grounding outgoing line comprises a protective sleeve, wherein a plurality of threading pipes 2 are arranged in the protective sleeve 1, an insulating layer 3 is filled between each threading pipe 2 and the inner wall of the protective sleeve 1, and protective gaskets 4 are symmetrically arranged at two ends of the protective sleeve 1.
At least 7 threading pipes 2 are arranged and arranged in the protective sleeve 1 in a scattered way.
The protective sleeve 1 is made of copper.
Claims (4)
1. The utility model provides a generator catchment ring ground lead-out wire protection sleeve, includes protection sleeve, its characterized in that: a plurality of threading pipes (2) are arranged in the protective sleeve (1), an insulating layer (3) is filled between the threading pipes (2) and the inner wall of the protective sleeve (1), and protective gaskets (4) are symmetrically arranged at two ends of the protective sleeve (1).
2. The generator water collecting ring ground lead wire protective sleeve of claim 1, characterized in that: protective sleeve (1)'s tip is located to protective gasket (4) as a whole including connecting portion (5) and extension (6), connecting portion (5) cover, and the clamp is established to the periphery cover of connecting portion (5), and extension (6) are loudspeaker forms, and the one end and the connecting portion (5) of extension (6) are connected, and the other end extends towards the direction of keeping away from protective sleeve (1).
3. The generator catchment ring ground lead wire protection sleeve of claim 1 or 2, characterized in that: at least 7 threading pipes (2) are arranged and arranged in the protective sleeve (1) in a scattered way.
4. The generator water collecting ring ground lead wire protective sleeve of claim 3, characterized in that: the protective sleeve (1) is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120762256.1U CN215300046U (en) | 2021-04-14 | 2021-04-14 | Protective sleeve for grounding outgoing line of generator catchment ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120762256.1U CN215300046U (en) | 2021-04-14 | 2021-04-14 | Protective sleeve for grounding outgoing line of generator catchment ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215300046U true CN215300046U (en) | 2021-12-24 |
Family
ID=79536467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120762256.1U Active CN215300046U (en) | 2021-04-14 | 2021-04-14 | Protective sleeve for grounding outgoing line of generator catchment ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215300046U (en) |
-
2021
- 2021-04-14 CN CN202120762256.1U patent/CN215300046U/en active Active
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