CN204167065U - Oil immersion-type distribution transformer pile crown assembly - Google Patents
Oil immersion-type distribution transformer pile crown assembly Download PDFInfo
- Publication number
- CN204167065U CN204167065U CN201420622805.5U CN201420622805U CN204167065U CN 204167065 U CN204167065 U CN 204167065U CN 201420622805 U CN201420622805 U CN 201420622805U CN 204167065 U CN204167065 U CN 204167065U
- Authority
- CN
- China
- Prior art keywords
- conducting rod
- terminal block
- assembly
- porcelain vase
- distribution transformer
- 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.)
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Links
- 238000009826 distribution Methods 0.000 title claims abstract description 13
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 28
- 238000005495 investment casting Methods 0.000 claims abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract description 2
- 238000005266 casting Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
- Insulators (AREA)
Abstract
The utility model discloses a kind of oil immersion-type distribution transformer pile crown assembly, comprise porcelain vase assembly and the conducting rod axially across porcelain vase assembly, there is the terminal block integrated with it upper end of described conducting rod.Conducting rod and terminal block are the single piece of hot investment casting, and terminal block is bar-shaped plate, and it has wiring hole.Single piece casting completely eliminates the potential safety hazard brought because of various syndeton.Terminal block and conducting rod are designed to non-removable integrated cast structure, and lead-out wire is directly connected with terminal block.Compare with prior art, considerably increase the contact area that conducting rod is connected with outside, decrease the middle transition link of connection, decrease fault point.Junction good mechanical property, stability is strong.Avoid prior art because junction contact area is little and securing member easily loosens and causes generating heat and burn out the defect of conducting rod, available protecting conducting rod, extends its useful life, improves the safety in utilization of equipment, has and produces and important meaning economically.
Description
Technical field
The utility model relates to a kind of oil immersion-type distribution transformer of electric power system, is specifically related to a kind of pile crown structure of oil immersion-type distribution transformer.
Background technology
The conducting rod upper end of current oil immersion-type distribution transformer pile crown assembly is generally fixed by the wire clamp of two kinds of structures, and one is movable wire clamp, and another kind is fixed wire clamps.Movable wire clamp comprises base plate and pressing plate, is connected between pressing plate and base plate by bolt assembly, base plate has extraction wire casing, fastening after generally conducting rod being passed perpendicularly through base plate, compresses lead-out wire by pressing plate and bolt assembly.Fixed wire clamps is directly clamped its upper end rear fastening along the length direction of conducting rod, and lead-out wire is that the wire barrel by being connected with wire clamp connects.
All there is the less defect easily loosened with securing member of contact-making surface in the junction of above-mentioned two kinds of wire clamps and conducting rod.The junction of contact area little conducting rod and wire clamp when load is excessive can generate heat and cause conducting rod to be burned, securing member easily loosens and can make wire clamp and conducting rod loose contact or make both contact-making surfaces reduce thus cause connection position heating to burn out conducting rod, affects the safety in production of electric power system.
Utility model content
The safety-type oil immersion-type distribution transformer pile crown modular construction that the purpose of this utility model is to provide a kind of can be protected conducting rod, extend its useful life.
The utility model discloses a kind of oil immersion-type distribution transformer pile crown assembly, comprise porcelain vase assembly and the conducting rod axially across porcelain vase assembly, there is the terminal block integrated with it upper end of described conducting rod.
Described terminal block and conducting rod are the single piece of hot investment casting, and terminal block is bar-shaped plate, and it has wiring hole.Monoblock cast completely eliminates the potential safety hazard brought because of various syndeton.
Described terminal block is extended along the length direction of described conducting rod, or arranges along the length direction perpendicular to conducting rod.Can determine according to field condition.
The outer wall total length of described conducting rod is processed with screw thread, it is connected with at least two fastening screw nuts, and fastening screw nut is placed in the upper and lower side of described porcelain vase assembly, better fixes to make porcelain vase assembly.
Terminal block and conducting rod are designed to non-removable integral structure and carry out integral precision casting by the utility model, and then at the outer wall processing full thread of conducting rod, lead-out wire is directly connected with terminal block.Compare with prior art, considerably increase the contact area that conducting rod is connected with outside, decrease the middle transition link of connection, decrease fault point.Good mechanical property, stability is strong.Avoid prior art because junction contact area is little and securing member easily loosens and causes generating heat and burn out the defect of conducting rod, available protecting conducting rod, extends its useful life, improves the safety in utilization of equipment, has and produces and important meaning economically.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the assembly parts schematic diagram of conducting rod, terminal block and fastening screw nut in Fig. 1.
Fig. 3 is the structural representation of the utility model embodiment two.
Fig. 4 is the assembly parts schematic diagram of conducting rod, terminal block and fastening screw nut in Fig. 3.
Embodiment
Embodiment one, as shown in Figure 1 and Figure 2, the utility model discloses a kind of oil immersion-type distribution transformer pile crown assembly, comprise porcelain vase assembly 1 and the conducting rod 2 axially across porcelain vase assembly 1, there is terminal block 3 along its length the upper end of conducting rod 2.Conducting rod 2 and terminal block 3 form with single piece hot investment casting, then in the outer wall total length direction machining screw of conducting rod 2.Conducting rod 2 is connected with two fastening screw nuts 4, they lay respectively at the upper and lower end of porcelain vase assembly 1.
Porcelain vase assembly 1 comprises base porcelain vase 11, upper porcelain vase 12 and the porcelain ring 13 arranged successively from the bottom up, and between their contact-making surface, filling has oil-resistant rubber insert.Top board is clamped in the medial and lateral that base porcelain vase 11 and upper porcelain vase 12 lay respectively at transformer upper end top board, and clogs oil-resistant rubber insert between upper porcelain vase 12 and transformer top board.Then by two fastening porcelain vase assemblies 1 of fastening screw nut 4, whole pile crown is firmly insulated and stands on the top board of transformer.
Embodiment two, as shown in Figure 3, Figure 4, the difference of the present embodiment and embodiment one is that terminal block 3 is arranged along the length direction perpendicular to conducting rod 2, and other structure is with embodiment one.
Position relationship between terminal block and conducting rod, can determine according to field condition.
The installation step of two embodiments is as follows:
(1), by a fastening screw nut 4 from the lower end of conducting rod 2 be up screwed onto near terminal block 3, simultaneously a packing ring 5 on the cover of the below of fastening screw nut 4;
(2) top board is clamped in the medial and lateral, by the base porcelain vase 11 of porcelain vase assembly 1 and upper porcelain vase 12 being placed in transformer upper end top board respectively, second fastening screw nut 4 of screwing on again after then the lower end of conducting rod 2 being inserted through base porcelain vase 11 from the porcelain ring 13 of porcelain vase assembly 1 upper end;
(3), regulate two fastening screw nuts 4, make that porcelain vase assembly 1 is fixed on the top board of transformer, conducting rod 2 is fixed in porcelain vase assembly 1;
(4), the lower end of conducting rod is communicated with the coil in transformer;
(5), by outside lead be connected with terminal block 3 by wire clamp, make conducting rod 2 be connected conducting with outside.
Claims (4)
1. an oil immersion-type distribution transformer pile crown assembly, comprises porcelain vase assembly and the conducting rod axially across porcelain vase assembly, it is characterized in that: there is the terminal block integrated with it upper end of described conducting rod.
2. oil immersion-type distribution transformer pile crown assembly as claimed in claim 1, is characterized in that: described terminal block and conducting rod are the single piece of hot investment casting, and terminal block is bar-shaped plate, and it has wiring hole.
3. oil immersion-type distribution transformer pile crown assembly as claimed in claim 2, is characterized in that: described terminal block is extended along the length direction of described conducting rod, or arranges along the length direction perpendicular to conducting rod.
4. oil immersion-type distribution transformer pile crown assembly as claimed in claim 1, is characterized in that: the outer wall total length of described conducting rod is processed with screw thread, it is connected with at least two fastening screw nuts, and fastening screw nut is placed in the upper and lower side of described porcelain vase assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420622805.5U CN204167065U (en) | 2014-10-27 | 2014-10-27 | Oil immersion-type distribution transformer pile crown assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420622805.5U CN204167065U (en) | 2014-10-27 | 2014-10-27 | Oil immersion-type distribution transformer pile crown assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204167065U true CN204167065U (en) | 2015-02-18 |
Family
ID=52540730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420622805.5U Active CN204167065U (en) | 2014-10-27 | 2014-10-27 | Oil immersion-type distribution transformer pile crown assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204167065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299761A (en) * | 2014-10-27 | 2015-01-21 | 国家电网公司 | Oil-immersed type distribution transformer pile head |
-
2014
- 2014-10-27 CN CN201420622805.5U patent/CN204167065U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299761A (en) * | 2014-10-27 | 2015-01-21 | 国家电网公司 | Oil-immersed type distribution transformer pile head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |