CN212587276U - 35KV annular voltage limiter - Google Patents
35KV annular voltage limiter Download PDFInfo
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- CN212587276U CN212587276U CN202021566258.5U CN202021566258U CN212587276U CN 212587276 U CN212587276 U CN 212587276U CN 202021566258 U CN202021566258 U CN 202021566258U CN 212587276 U CN212587276 U CN 212587276U
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- voltage limiter
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Abstract
The utility model discloses a 35KV annular voltage limiter, including the tower pole, fix the voltage limiter body through the ground connection screw on the tower pole, this internal earth electrode that is equipped with of voltage limiter, the earth electrode that is qualified for the next round of competitions contacts with the ground connection screw, the one end of tower pole is equipped with the fixed gold utensil of installation, the other end of tower pole is equipped with voltage limiter link fitting, voltage limiter link fitting supports fixed insulator one end with the clearance and is connected, the other end that fixed insulator was supported in the clearance is equipped with high-pressure link fitting, the both ends that fixed insulator was supported in the clearance are fixed with clearance and lower clearance respectively. The utility model discloses it is more convenient to install, the clearance is fixed exempt from to adjust, prevent bird pest, prevent snow, antiskid falls, long service life, can carry protection thunderbolt broken string security, convenience.
Description
Technical Field
The utility model relates to a lightning protection field such as 35kV high-voltage line, especially a 35KV annular voltage limiter.
Background
CN201320302391.3 discloses a voltage limiter support for insulated wires of overhead lines. The external column type voltage limiter for the insulated wire of the overhead line comprises a tower, a pillar and a voltage limiter, wherein the insulated wire rack is arranged on the pillar, the pillar is fixed on a cross arm of the tower, and the voltage limiter is connected with the pillar through a voltage limiter connecting rod assembly; an arc striking plate is further arranged between the cross arm and the support column, and the arc striking plate is tightly and electrically connected with the cross arm of the tower; the voltage limiter consists of a voltage limiter body and an electrode connected with the head of the voltage limiter body, and the electrode and the voltage limiter body are tightly and electrically connected with a hardware fitting on the support through a voltage limiter connecting rod assembly; an air gap is formed between the arc striking plate and the electrode.
The voltage limiter is used for protecting distribution network (insulated) lines, and effectively preventing lightning stroke disconnection and various overvoltage hazards and tripping. The traditional voltage limiter resistor disc is easy to age, short in service life, large in installation difficulty of the original annular gap and angle type fixed gap overvoltage protector, easy to deflect in gap, poor in weather resistance and easy to break.
Disclosure of Invention
To the problem that exists among the prior art, the utility model provides a 35KV annular voltage limiter that installation is more convenient, the clearance is fixed exempts from the adjustment, prevents the bird pest, prevents snow, antiskid and falls, long service life, can carry protection thunderbolt broken string security, convenience.
The purpose of the utility model is realized through the following technical scheme.
A35 KV annular voltage limiter comprises a tower rod, wherein a voltage limiter body is fixed on the tower rod through a grounding screw, a wire outlet grounding electrode is arranged in the voltage limiter body and is in contact with the grounding screw, an installation fixing hardware fitting is arranged at one end of the tower rod, a voltage limiter connecting hardware fitting is arranged at the other end of the tower rod and is connected with one end of a gap support fixing insulator, a high-voltage connecting hardware fitting is arranged at the other end of the gap support fixing insulator, and an upper gap and a lower gap are respectively fixed at two ends of the gap support fixing insulator.
The upper gap is fixed with the gap support insulator through an upper gap fixing screw, and the lower gap is fixed with the gap support insulator through a lower gap fixing screw.
An upper electrode is arranged in the voltage limiter body and is positioned at one end of the voltage limiter connecting hardware fitting.
The pressure limiter body is internally provided with a glass fiber insulating rod, a glass fiber epoxy tube and a zinc oxide resistance card.
The pressure limiter body is a composite silica gel pressure limiter body.
The grounding screw is a 10-25 grounding screw.
The zinc oxide resistance card is an MOA zinc oxide resistance card.
Compared with the prior art, the utility model has the advantages of: the utility model discloses a fixed outer series connection clearance type of annular is normal during operation, and the product body does not bear the power frequency voltage, is in the rest state, has slowed down the degradation of resistance card, has increased life, and adopts built-in insulation system, has prevented the circuit secondary fault. Because the anti-slip, anti-bird and anti-snow bracket is adopted, the defects of large installation difficulty, easy deviation of the gap, poor weather resistance, easy breakage and the like of the original annular gap and angle type fixed gap overvoltage protector are overcome, and the device is more convenient to install, free of adjustment in gap fixation, anti-bird, anti-snow and anti-slip.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the high-voltage connection hardware fitting comprises a high-voltage connection hardware fitting 2, a lower gap fixing screw 3, a lower gap 4, a gap supporting insulator 5, an upper gap 6, an upper gap fixing screw 7, a voltage limiting insulator connection fixing hardware fitting 8, a voltage limiter connection hardware fitting 9, an upper electrode 10, an MOA zinc oxide resistance sheet 11, an outgoing line grounding electrode 12.10 and 25 grounding screw 13, a glass fiber insulating rod 14, an installation fixing hardware fitting 15, a glass fiber epoxy tube 16 and a composite silica gel voltage limiter body.
Detailed Description
The invention is described in detail below with reference to the drawings and specific examples.
As shown in fig. 1, a 35KV annular voltage limiter includes a tower pole, a voltage limiter body is fixed on the tower pole through a grounding screw, an outgoing line grounding electrode is arranged in the voltage limiter body, the outgoing line grounding electrode contacts with the grounding screw, an installation fixing fitting is arranged at one end of the tower pole, a voltage limiter connecting fitting is arranged at the other end of the tower pole, the voltage limiter connecting fitting is connected with one end of a gap support fixing insulator, a high voltage connecting fitting is arranged at the other end of the gap support fixing insulator, and an upper gap and a lower gap are respectively fixed at two ends of the gap support fixing insulator.
The upper gap is fixed with the gap support insulator through an upper gap fixing screw, and the lower gap is fixed with the gap support insulator through a lower gap fixing screw.
An upper electrode is arranged in the voltage limiter body and is positioned at one end of the voltage limiter connecting hardware fitting.
The pressure limiter body is internally provided with a glass fiber insulating rod, a glass fiber epoxy tube and a zinc oxide resistance card.
The pressure limiter body is a composite silica gel pressure limiter body.
The grounding screw is a 10-25 grounding screw.
The zinc oxide resistance card is an MOA zinc oxide resistance card.
The fixed insulation gap is added on the basis of the original overvoltage protector, the voltage limiter body is fixed on the tower pole and is firmly grounded through the grounding screw, the insulator fixed gap is firmly connected through the high-voltage hardware fitting, the voltage limiting gap is fixed and firm, the product does not move under normal voltage, and the operation voltage, the lightning voltage and other over-high gap arc striking discharge protection circuit can normally operate.
Claims (7)
1. The 35KV annular voltage limiter comprises a tower rod, wherein a voltage limiter body is fixed on the tower rod through a grounding screw, a wire outlet grounding electrode is arranged in the voltage limiter body and is in contact with the grounding screw, and the 35KV annular voltage limiter is characterized in that an installation fixing fitting is arranged at one end of the tower rod, a voltage limiter connecting fitting is arranged at the other end of the tower rod and is connected with one end of a gap support fixing insulator, a high-voltage connecting fitting is arranged at the other end of the gap support fixing insulator, and an upper gap and a lower gap are respectively fixed at two ends of the gap support fixing insulator.
2. A 35KV annular voltage limiter according to claim 1, wherein the upper gap is fixed to the gap supporting insulator by an upper gap fixing screw, and the lower gap is fixed to the gap supporting insulator by a lower gap fixing screw.
3. The 35KV annular voltage limiter according to claim 1 or 2, characterized in that an upper electrode is arranged in the voltage limiter body, and the upper electrode is located at one end of the voltage limiter connection fitting.
4. The 35KV annular voltage limiter according to claim 1 or 2, wherein a glass fiber insulating rod, a glass fiber epoxy tube and a zinc oxide resistor disc are arranged in the voltage limiter body.
5. The 35KV annular voltage limiter according to claim 1 or 2, characterized in that the voltage limiter body is a composite silica gel voltage limiter body.
6. A 35KV annular voltage limiter according to claim 1 or 2, characterized in that the grounding screw is a 10 x 25 grounding screw.
7. A35 KV annular voltage limiter according to claim 4, characterized in that the zinc oxide resistor disc is an MOA zinc oxide resistor disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566258.5U CN212587276U (en) | 2020-07-31 | 2020-07-31 | 35KV annular voltage limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566258.5U CN212587276U (en) | 2020-07-31 | 2020-07-31 | 35KV annular voltage limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212587276U true CN212587276U (en) | 2021-02-23 |
Family
ID=74658348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021566258.5U Active CN212587276U (en) | 2020-07-31 | 2020-07-31 | 35KV annular voltage limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212587276U (en) |
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2020
- 2020-07-31 CN CN202021566258.5U patent/CN212587276U/en active Active
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