CN205753320U - A kind of overvoltage protection for power system combines lightning arrester - Google Patents
A kind of overvoltage protection for power system combines lightning arrester Download PDFInfo
- Publication number
- CN205753320U CN205753320U CN201620428363.XU CN201620428363U CN205753320U CN 205753320 U CN205753320 U CN 205753320U CN 201620428363 U CN201620428363 U CN 201620428363U CN 205753320 U CN205753320 U CN 205753320U
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- China
- Prior art keywords
- arrester
- lightning
- unit
- power system
- base
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Abstract
This utility model relates to a kind of overvoltage protection for power system and combines lightning arrester; including base and three lightning-arrest core bodys being fixed on base; in described lightning-arrest core body, the first unit of an arrester is installed; the second unit of an arrester being connected with described first unit of an arrester it is provided with in described base; described first unit of an arrester is connected with bus A, B, C triple line by the cable being arranged on described lightning-arrest core body, and the other end of described second unit of an arrester is connected with the earth terminal being located on base.This utility model simple in construction, easy for installation, not only can be substantially reduced alternate overvoltage, relatively level of protection also has the raising of matter.This device uses unit of an arrester, high tension cable, core body and insulation sleeve split to manufacture, after fit together composition, it position convenient, while can independent replacement part, reduce maintenance cost.
Description
Technical field
This utility model relates to spark gap technical field, is specifically related to a kind of overvoltage protection combination for power system and keeps away
Thunder device.
Background technology
The electrical equipment run in power system, subjects various overvoltage, have from outside lightning surge and
Internal switching overvoltage.Owing to the arc extinguishing of vacuum switch is very competent, special switching overvoltage can be caused when cut-offfing, cause
The insulation breakdown of high-voltage motor, the fault of loop transformers.And cause the damage of switch cubicle or burn, spark gap is protection electricity
Electrical equipment is not damaged by device equipment by the switching overvoltage of outside lightning surge and system.Although spark gap can limit
Make overvoltage still can only be connected on electrically and between the phase and ground of equipment, it is impossible to realize alternate protection.Mistake between biphase
Voltage to be connected through two spark gaps, but residual voltage ratio during series connection than mutually exceed 1 times, be unfavorable for the phase of electrical equipment
Between insulation protection.
Utility model content
The purpose of this utility model is to provide a kind of mode of connection simple, good airproof performance, it is possible to protect alternate, phase ground
Between for power system overvoltage protection combine lightning arrester.
For achieving the above object, this utility model have employed techniques below scheme: includes base and is fixed on base
Three lightning-arrest core bodys, are provided with the first unit of an arrester in described lightning-arrest core body, be provided with and take shelter from the thunder with described first in described base
The second unit of an arrester that device element is connected, described first unit of an arrester is by being arranged on the electricity on described lightning-arrest core body
Cable is connected with bus A, B, C triple line, and the other end of described second unit of an arrester is connected with the earth terminal being located on base.
The upper end of described lightning-arrest core body is provided with the insulating coating for fixing cable.
Described insulating coating is that silastic material is made.
Described base is that flame-proof PVC material is made.
Described cable is inter-connected via a bolt joint with described lightning-arrest core body.
The two ends of described base are provided with the connector fixed for this floor installation, and described connector is provided with installing hole.
Described base is the shell structure sealed, and has poured into epoxy in described base.
As shown from the above technical solution, combination lightning arrester described in the utility model, simple in construction, not only can be significantly
Reducing alternate overvoltage, relatively level of protection also has the raising of matter.Unit of an arrester uses high tension cable, core body and insulation sleeve
Dividing equally body manufacture, then fit together, location is convenient, individually can reduce maintenance cost by replacement part.On unit of an arrester
High-voltage cable is threaded connection with whole core body, and it is firm to install, and spark gap is effective.On cable on lightning-arrest core body
All being cased with insulation sleeve top and be provided with insulating coating, this insulating coating can be as the protection portion of cable, to protect the cable will not office
The bending damage that portion is excessive.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the first unit of an arrester of the present utility model and the connection diagram of the second unit of an arrester；
Fig. 3 is the upward view of this utility model base.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further:
As shown in Figure 1, 2, the overvoltage protection for power system of the present embodiment combines lightning arrester, including base 1 and
Three the lightning-arrest core bodys 2 being fixed on base 1, are provided with the first unit of an arrester 21 in lightning-arrest core body 2, be provided with in base 1 with
The second unit of an arrester 11 that first unit of an arrester 21 is connected, the first unit of an arrester 21 is by being arranged on lightning-arrest core body 2
On cable 3 be connected with bus A, B, C triple line, the other end of the second unit of an arrester 11 and the ground connection being located on base 1
End 12 is connected.This base 1 is the shell structure sealed, and has poured into epoxy in base 1, to play the effect of insulation.
The upper end of lightning-arrest core body 2 is provided with the insulating coating 4 for fixing cable 3, and this insulating coating 4 not only can play electricity
The insulation in cable and outside, can protect cable the bending of local excessive to damage simultaneously.In the present embodiment, insulating coating 4 is
Silastic material is made, and base 1 is made for flame-proof PVC material.Cable 3 is inter-connected via a bolt joint with lightning-arrest core body 2, installs
Firm, spark gap is effective.Base 1 and external device is fixing for convenience, and the two ends of this base 1 are provided with connector 13,
Connector 13 is provided with installing hole 14.
Embodiment described above is only to be described preferred implementation of the present utility model, not to this practicality
Novel scope is defined, and on the premise of without departing from this utility model design spirit, those of ordinary skill in the art are to this
Various deformation that the technical scheme of utility model is made and improvement, all should fall into the protection that this utility model claims determine
In the range of.
Claims (7)
1. the overvoltage protection combination lightning arrester for power system, it is characterised in that: include base (1) and be fixed on the end
Three lightning-arrest core bodys (2) on seat (1), are provided with the first unit of an arrester (21), described base in described lightning-arrest core body (2)
(1) the second unit of an arrester (11) being connected with described first unit of an arrester (21), described first spark gap unit it are provided with in
Part (21) is connected with bus A, B, C triple line by the cable (3) being arranged on described lightning-arrest core body (2), and described second keeps away
The other end of thunder device element (11) is connected with the earth terminal (12) being located on base (1).
Overvoltage protection for power system the most according to claim 1 combines lightning arrester, it is characterised in that keep away described in:
The upper end of thunder core body (2) is provided with the insulating coating (4) for fixing cable (3).
Overvoltage protection for power system the most according to claim 2 combines lightning arrester, it is characterised in that: described absolutely
Edge overcoat (4) is that silastic material is made.
Overvoltage protection for power system the most according to claim 1 combines lightning arrester, it is characterised in that: the described end
Seat (1) is that flame-proof PVC material is made.
Overvoltage protection for power system the most according to claim 1 combines lightning arrester, it is characterised in that: described electricity
Cable (3) is inter-connected via a bolt joint with described lightning-arrest core body (2).
Overvoltage protection for power system the most according to claim 1 combines lightning arrester, it is characterised in that: the described end
The two ends of seat (1) are provided with installs fixing connector (13) for this base (1), and described connector (13) is provided with installing hole
(14).
Overvoltage protection for power system the most according to claim 1 combines lightning arrester, it is characterised in that: the described end
Seat (1) is the shell structure sealed, and described base has poured into epoxy in (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428363.XU CN205753320U (en) | 2016-05-12 | 2016-05-12 | A kind of overvoltage protection for power system combines lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428363.XU CN205753320U (en) | 2016-05-12 | 2016-05-12 | A kind of overvoltage protection for power system combines lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205753320U true CN205753320U (en) | 2016-11-30 |
Family
ID=57369427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620428363.XU Expired - Fee Related CN205753320U (en) | 2016-05-12 | 2016-05-12 | A kind of overvoltage protection for power system combines lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205753320U (en) |
-
2016
- 2016-05-12 CN CN201620428363.XU patent/CN205753320U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20210512 |