CN207705765U - A kind of complete set of protective apparatus for transformer neutral point - Google Patents
A kind of complete set of protective apparatus for transformer neutral point Download PDFInfo
- Publication number
- CN207705765U CN207705765U CN201820029275.1U CN201820029275U CN207705765U CN 207705765 U CN207705765 U CN 207705765U CN 201820029275 U CN201820029275 U CN 201820029275U CN 207705765 U CN207705765 U CN 207705765U
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- CN
- China
- Prior art keywords
- neutral point
- disconnecting switch
- inductor
- complete set
- arrester
- 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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Abstract
The utility model is related to a kind of complete set of protective apparatus for transformer neutral point; it is characterized in that; including T shapes holder, neutral point disconnecting switch, arrester, electric power mutual-inductor and on-line computing model; it is sequentially installed with neutral point disconnecting switch, arrester and electric power mutual-inductor on the top of the T shapes holder, the insulation division of the neutral point disconnecting switch at the top of busbar and arrester by linking together；The left side of protective gap of neutral point stick is fixed on the busbar of zinc oxide surge arresters, and right side is fixedly mounted on by gap rod bracket on electric power mutual-inductor；The actuating unit of driving section for driving neutral point disconnecting switch is installed on the T shape holders；The on-line computing model is mounted on the lower part of T shape holders.The utility model has the advantages that：1, globality is strong, and Assembling is efficient and convenient.2, protective gap of neutral point stick is individual components, and stainless steel clearance distance is selected to be easy to adjust.3, steel bracket uses hot-galvanized steel supporting structure, secured anti-corrosion.
Description
Technical field
The utility model is related to a kind of complete set of protective apparatus for transformer neutral point.
Background technology
In power transmission and transformation system more than 110kV voltage class, three-phase transformer neutral point is heavy current grounding system.Become
Depressor grounding protection device of neutral point is exactly to be grounded a kind of guarantor produced for transformer neutral point more than 110kV voltage class
Protection unit.Transformer neutral point discharging gap protective device is by high-voltage one-phase disconnecting switch, neutral point MOA, current transformer
It is formed with elements such as discharging gaps.It is designed with realizing neutral ground or earth-free two different methods of operation, to
It avoids transformer neutral point because being caused voltage to increase by lightning impulse and failure, is damaged to transformer insulated.
Invention content
To overcome the deficiencies of existing technologies, the utility model provides a kind of complete set of protective apparatus for transformer neutral point, this reality
It is with novel technical solution：
A kind of complete set of protective apparatus for transformer neutral point, including T shapes holder, neutral point disconnecting switch, arrester, electric power are mutual
Sensor and on-line computing model are sequentially installed with neutral point disconnecting switch, arrester and electric power mutual inductance on the top of the T shapes holder
Device, the insulation division of the neutral point disconnecting switch at the top of busbar and arrester by linking together；Protective gap of neutral point
The left side of stick is fixed on the busbar of zinc oxide surge arresters, and right side is fixedly mounted on electric power mutual-inductor by gap rod bracket
On；The actuating unit of driving section for driving neutral point disconnecting switch is installed on the T shape holders；The on-line monitoring
Instrument is mounted on the lower part of T shape holders.
The actuating unit includes motor, drive link and anchor ear, and the motor is fixedly mounted on T shape branch by anchor ear
The lower part of frame, the drive link are vertically arranged, and lower end is connected by the shaft of shaft coupling and motor, and upper end passes through T
It is driven and coordinates with the driving section of neutral point disconnecting switch after shape holder.
The T shape holders include crossbeam and and the steel bracket that is arranged with beam vertical.
The crossbeam is made using channel steel.
The utility model has the advantages that：
1, globality is strong, and Assembling is efficient and convenient.
2, protective gap of neutral point stick is individual components, and stainless steel clearance distance is selected to be easy to adjust.
3, steel bracket uses hot-galvanized steel supporting structure, secured anti-corrosion.
4, motor uses stainless steel babinet, aesthetic in appearance, has good dust-proof, waterproof, anti-corrosion ability.
Description of the drawings
Fig. 1 is the agent structure schematic diagram of the utility model.
Fig. 2 is the B-B sectional views of Fig. 1.
Specific implementation mode
The utility model is further described with reference to specific embodiment, and the advantages of the utility model and feature will be with
Description and it is apparent.But examples are merely exemplary for these, does not constitute any restrictions to the scope of the utility model.
It will be understood by those skilled in the art that can be to the utility model skill under the spirit and scope without departing from the utility model
The details and form of art scheme are modified or are replaced, but these modifications and replacement each fall within the scope of protection of the utility model
It is interior.
Referring to Fig. 1 and Fig. 2, the utility model is related to a kind of complete set of protective apparatus for transformer neutral point, including T shapes holder,
Neutral point disconnecting switch 1, arrester 3, electric power mutual-inductor 6 and on-line computing model 8 are installed successively on the top of the T shapes holder
Have neutral point disconnecting switch 1, arrester 3 and an electric power mutual-inductor 6, the insulation division of the neutral point disconnecting switch 1 by busbar 2 with
The top of arrester 3 links together；The left side of protective gap of neutral point stick 4 is fixed on the busbar of zinc oxide surge arresters 3, right
Half portion is fixedly mounted on by gap rod bracket 5 on electric power mutual-inductor 6；It is equipped on the T shape holders for driving neutral point
The actuating unit of the driving section of disconnecting switch 1；The on-line computing model 8 is mounted on the lower part of T shape holders.
The actuating unit includes motor 10, drive link 12 and anchor ear 11, and the motor 10 is fixed by anchor ear 11
Mounted on the lower part of T shape holders, the drive link 12 is vertically arranged, the shaft that lower end passes through shaft coupling and motor 10
Connection, upper end, which is driven after T shape holders with the driving section of neutral point disconnecting switch 1, to be coordinated.
The T shape holders include crossbeam 7 and and with 7 vertically disposed steel bracket 9 of crossbeam.
The crossbeam is made using channel steel.
The operation principle of the utility model is：When starting the separating brake knob of motor, motor rotation drives connecting shaft and transmission
Bar rotates, and power drives neutral point disconnecting switch upper supporting column insulator rotating by the driving section being connected with drive link, while
A pair of of pitch wheel in pedestal is driven to rotate in opposite directions.The seat contact on two insulator top with right contact ipsilateral rotation
90 °, since worm gear retaining screw limits in neutral point disconnecting switch, make the Spindle control of neutral point disconnecting switch in separating brake end of a period position
It sets.When starting the combined floodgate knob of motor, action process is opposite with separating brake process.
Claims (4)
1. a kind of complete set of protective apparatus for transformer neutral point, which is characterized in that including T shapes holder, neutral point disconnecting switch, take shelter from the thunder
Device, electric power mutual-inductor and on-line computing model are sequentially installed with neutral point disconnecting switch, arrester on the top of the T shapes holder
And electric power mutual-inductor, the insulation division of the neutral point disconnecting switch at the top of busbar and arrester by linking together；It is neutral
The left side of point protection gap stick is fixed on the busbar of zinc oxide surge arresters, and right side is fixedly mounted on electricity by gap rod bracket
On power mutual inductor；The actuating unit of driving section for driving neutral point disconnecting switch is installed on the T shape holders；Described
On-line computing model is mounted on the lower part of T shape holders.
2. a kind of complete set of protective apparatus for transformer neutral point according to claim 1, which is characterized in that the engine
Structure includes motor, drive link and anchor ear, and the motor is fixedly mounted on the lower part of T shape holders, the transmission by anchor ear
Bar is vertically arranged, and lower end is connected by the shaft of shaft coupling and motor, and upper end is isolated after passing through T shape holders with neutral point
The driving section transmission cooperation of switch.
3. a kind of complete set of protective apparatus for transformer neutral point according to claim 1 or 2, which is characterized in that the T shapes
Holder includes crossbeam and and the steel bracket that is arranged with beam vertical.
4. a kind of complete set of protective apparatus for transformer neutral point according to claim 3, which is characterized in that the crossbeam is adopted
It is made with channel steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820029275.1U CN207705765U (en) | 2018-01-09 | 2018-01-09 | A kind of complete set of protective apparatus for transformer neutral point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820029275.1U CN207705765U (en) | 2018-01-09 | 2018-01-09 | A kind of complete set of protective apparatus for transformer neutral point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207705765U true CN207705765U (en) | 2018-08-07 |
Family
ID=63033879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820029275.1U Active CN207705765U (en) | 2018-01-09 | 2018-01-09 | A kind of complete set of protective apparatus for transformer neutral point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207705765U (en) |
-
2018
- 2018-01-09 CN CN201820029275.1U patent/CN207705765U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |