CN203660484U - Back-connection-type lightning arrester - Google Patents
Back-connection-type lightning arrester Download PDFInfo
- Publication number
- CN203660484U CN203660484U CN201420033004.5U CN201420033004U CN203660484U CN 203660484 U CN203660484 U CN 203660484U CN 201420033004 U CN201420033004 U CN 201420033004U CN 203660484 U CN203660484 U CN 203660484U
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- lightning arrester
- connect
- formula lightning
- conducting layer
- plug
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Abstract
The utility model provides a back-connection-type lightning arrester comprising an outer conductive layer, an insulation layer, an inner conductive layer, a core rod, an end cover, a grounding wire, a device connection interface, a connection wire and a metal fixation component. The core rod is arranged in a housing formed by the outer conductive layer, the insulation layer and the inner conductive layer, and is fixedly arranged in the housing through the end cover and the metal fixation component; the device connection interface is connected with the core rod through the inner conductive layer; the core rod is connected with the grounding wire; and the outer conductive layer is connected with the grounding wire through the connection wire. The back-connection-type lightning arrester can be arranged on a protected electrical device horizontally, vertically or at any angle according to the position of a device sleeve of the protected electrical device, thereby effectively avoiding safety hidden trouble, due to contact connection problems, of a conventional lightning arrester.
Description
Technical field
The utility model relates to electric equipment over-voltage protection technique field, is specifically related to connect formula lightning arrester after one.
Background technology
Lightning arrester is that one can discharge thunder and lightning or hold concurrently and can discharge electrical equipment operation overvoltage energy, and protection electric equipment is avoided instantaneous overvoltage harm, can block again afterflow, the unlikely electrical installation that causes system earth short circuit.Lightning arrester is connected between live wire and ground conventionally, is connected in parallel with protected equipment.In the time that overvoltage value reaches the operation voltage of regulation, lightning arrester moves immediately, flows through electric charge, over-voltage amplitude, protection electric equipment; After magnitude of voltage is normal, lightning arrester restores to the original state rapidly again, to guarantee system normal power supply.
After existing, connect after the equipment casing of formula lightning arrester access electric equipment; the connection status of its contact cannot be observed from the external world; if contact is bad or disengaging; lightning arrester will be in off-state; electric equipment is not had to overvoltage protection effect, buried great potential safety hazard to the operation of electric equipment.
Summary of the invention
The technical problems to be solved in the utility model connects formula lightning arrester after being to provide one, can solve the potential safety hazard that existing lightning arrester causes because of contact connectivity problem.
In order to address the above problem, after the utility model discloses one, connect formula lightning arrester, comprise: outer conducting layer, insulating barrier, inner conducting layer, plug, end cap, earth connection, equipment connection interface, connection wire and metal reinforcement member, wherein: described plug is arranged in the casing being made up of described outer conducting layer, insulating barrier, inner conducting layer, and by described end cap and metal reinforcement member fix in described casing; Described equipment connection interface is connected with plug by inner conducting layer; Described plug is connected with earth connection; Described outer conducting layer is connected with earth connection by connecting wire.
Preferably, the wire that described earth connection is flat pattern.
Preferably, described plug is connected with earth connection by metal reinforcement member; Described outer conducting layer is specially with the connected mode of earth connection by connecting wire: described one end that is connected wire is connected with outer conducting layer, and the other end of described connection wire and one end of earth connection are fixed in metal reinforcement member simultaneously.
Preferably, the casing that connects formula lightning arrester after described is T-shaped structure, and described equipment connection interface is vertical with plug.
Preferably, after described, connecing formula lightning arrester is connected with protected electric equipment by front connector; Wherein: described front connector is arranged on the equipment casing of described protected electric equipment by double end metal bolts, and utilize the fixing described front connector of spring pad and nut; After described, connect formula lightning arrester by its equipment connection interface, utilize metal bolts guide rod to be arranged in front connector, and utilize that spring pad and nut are fixing connects formula lightning arrester after described, connect the equipment connection interface of formula lightning arrester after utilizing insulating plug sealing described.
Preferably, after described, connect formula lightning arrester and also comprise the radome being arranged on outside described insulating plug.
Preferably, connect between formula lightning arrester and front connector after described and be also provided with one or more rear joints, wherein: described rear joint is arranged on rear joint in described front connector or above by metal guide rod; After described, connecing formula lightning arrester is arranged on last rear joint by metal bolts guide rod.
Preferably, described protected electric equipment comprises switch cubicle, transformer, cable distribution box.
Compared with prior art, technique scheme has following beneficial effect:
After the utility model, connecing formula lightning arrester can be according to the position of the equipment casing of protected electric equipment, with level, vertical or arbitrarily angled being arranged on protected electric equipment, the potential safety hazard of effectively avoiding existing lightning arrester to cause because of contact connectivity problem; In addition, it is easy that said structure feature has determined to connect formula lightning arrester fitting operation after the utility model, and applicability is strong, both applicable to indoor installation, also applicable to outdoor installation.
In the further preferred embodiment of the utility model, adopt flat earth connection, can further improve the reliability of arrester ground, solved the lightning arrester that existing lightning arrester causes because ground connection is bad and can not bring into play the security hidden trouble that due performance is brought to electric equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation that meets formula lightning arrester one embodiment after the utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Description of reference numerals is as follows:
1-insulating barrier, 2-outer conducting layer, 3-inner conducting layer, 4-plug, 5-end cap, 6-connects wire, 7-metal reinforcement member, 8-earth connection, 9-equipment connection interface.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
See figures.1.and.2, show the structure that meets formula lightning arrester one embodiment after the utility model, comprise outer conducting layer 2, insulating barrier 1, inner conducting layer 3, plug 4, end cap 5, earth connection 8, equipment connection interface 9, connect wire 6 and metal reinforcement member 7; Wherein:
Equipment connection interface 9 is connected with plug 4 by inner conducting layer 3;
Outer conducting layer 2 is connected with earth connection 8 by connecting wire 6.
When concrete enforcement, for convenience of attended operation, improve the electrical connection performance between parts, plug 4(is as zinc oxide or other metal oxide core bodys) can be by metal reinforcement member 7(as screw etc.) be connected with earth connection 8; The one end that connects wire 6 is connected with outer conducting layer 2, connects the other end of wire 6 and one end of earth connection 8 and is fixed in metal reinforcement member 7 simultaneously.
In this preferred embodiment, for in the situation that not increasing wire gauge, further improve the reliability of arrester ground, solve the lightning arrester that existing lightning arrester causes because ground connection is bad and can not bring into play the potential safety hazard that due performance is brought to electric equipment, earth connection 8 adopts the wire of flat pattern; Certainly,, in the situation that meeting required electric property, also can adopt the wire of other shapes as earth connection 8.
In addition, for ease of being installed on protected electric equipment connecing formula lightning arrester after the utility model, the casing that connects formula lightning arrester after the utility model is designed to T-shaped structure as shown in Figure 2, wherein, equipment connection interface 9 is vertical with plug 4.
For connecing formula lightning arrester after the utility model; can be installed on protected electric equipment by supporting with it front connector; below take after GHS-10, connect formula lightning arrester and with it supporting GQJ front connector as example, the installation steps that connect formula lightning arrester after the utility model are described, specifically comprise:
S101: check the screw (standard thread is M16-6g) of the equipment casing of protected electric equipment, double end metal bolts is screwed in the screw of equipment casing;
The degree of depth that screw rod screws in sleeve pipe should reach 25mm, if the not enough 25mm of sleeve pipe screw hole depth tackles stud adjustment.
S102: inner surface, the equipment casing outer surface of clean front connector (shield type);
S103: will shift onto on equipment casing with the front connector of cable, make the circular hole of double end metal bolts through the crimp type terminal of above-mentioned front connector, and utilize plain cushion, spring pad, nut to fix;
S104: the earth connection of front connector is connected with the earth point of protected electric equipment;
S111: metal bolts guide rod is fastened on above-mentioned double end metal bolts;
S112: the surfaces externally and internally that connects the equipment connection interface of formula lightning arrester after clean;
S113: by after connect lightning arrester equipment connection interface aim at after metal bolts guide rod, push in mounted front connector, and utilize plain cushion, spring pad, nut to fix;
S114: load onto insulating plug, cover radome;
S115: by after connect the earth connection of formula lightning arrester and the earth point of protected electric equipment is reliably connected, after completing, connect the installation process of formula lightning arrester.
It should be noted that, according to actual needs, connect between formula lightning arrester and front connector after above-mentioned one or more rear joints can also be installed, in this case, between above-mentioned steps S103 and S111, also comprise the steps:
S105: double end metal bolts is fastened on the double end metal bolts of above-mentioned front connector;
S106: the rear joint that installs cable is pushed in the front connector that installs double end metal bolts, make the circular hole of double end metal bolts through the crimp type terminal of above-mentioned rear joint, and utilize plain cushion, spring pad, nut to fix;
S107: the earth connection of rear joint is connected with the earth point of protected electric equipment.
Wherein, in the time that needs are installed multiple rear joint, repeat the installation process of above-mentioned rear joint, until all rear jiont treatments complete.
It should be noted that in addition, above-mentioned installation procedure is that the example that is installed as to connect lightning arrester after protected type is carried out, and for the installation that connects lightning arrester after non-protected type, can omit the process of " covering radome " in above-mentioned steps S114.
After the utility model, connect formula lightning arrester and coordinate with applicable joint, full-shield and hermetic separable connection can be provided, its feature comprises:
Can use under water or under other adverse circumstances for a long time;
Without minimum phase spacing requirement;
Can level, vertical or arbitrarily angled installation;
Before dispatching from the factory, rubber-covered overcoat all detects by electric property;
Adopt compact design, go for standard switch cabinet, cable vault etc.
To connect formula lightning arrester after GHS-10 as example, its technical parameter is as shown in table 1 below:
After table 1:GHS-10, connect the technical parameter of formula lightning arrester
| Important technological parameters | Distribution type | Distribution type | Power station type |
| Model | GCSA-10-36 | GCSA-10-50 | GCSA-10-45 |
| Specification | HY5WS-12/36 | HY5WS-17/45 | HY5WS-17/45 |
| Rated voltage | 12KV | 17KV | 17KV |
| Nominal voltage of a system | 10KV | 10KV | 10KV |
| Continuous operating voltage | 9.6KV | 9.6KV | 9.6KV |
| Nominal discharge current | 5KA | 5KA | 5KA |
| Lightning |
35.8KV | 50KV | 50KV |
| Switching impulse 30/60 < | 30.6KV | 42.5KV | 38.3KV |
| Steep wave impacts 1/10 < | 41.2KV | 57.5KV | 51.8KV |
| 2ms square wave current | 100A | 100A | 100A |
| DC parameter voltage U IMA > | 19.0-20.0KV | 26.0-27.0KV | 25.0-25.9KV |
| Heavy current impact (4/10US) > | 65KV | 65KV | 65KV |
| 0.75U1MA Leakage Current < | 10UA | 10UA | 10UA |
The explanation of above embodiment is just for helping to understand scheme of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (8)
1. after, connect a formula lightning arrester, comprise outer conducting layer, insulating barrier, inner conducting layer, plug, end cap and earth connection, it is characterized in that, also comprise equipment connection interface, connect wire and metal reinforcement member, wherein:
Described plug is arranged in the casing being made up of described outer conducting layer, insulating barrier, inner conducting layer, and by described end cap and the fixing described casing of metal reinforcement member;
Described equipment connection interface is connected with plug by inner conducting layer;
Described plug is connected with earth connection;
Described outer conducting layer is connected with earth connection by connecting wire.
2. after as claimed in claim 1, connect formula lightning arrester, it is characterized in that the wire that described earth connection is flat pattern.
3. after as claimed in claim 1, connect formula lightning arrester, it is characterized in that:
Described plug is connected with earth connection by metal reinforcement member;
Described outer conducting layer is specially with the connected mode of earth connection by connecting wire: described one end that is connected wire is connected with outer conducting layer, and the other end of described connection wire and one end of earth connection are fixed in metal reinforcement member simultaneously.
4. after as claimed in claim 1, connect formula lightning arrester, it is characterized in that, the casing that connects formula lightning arrester after described is T-shaped structure, and described equipment connection interface is vertical with plug.
5. after as claimed in claim 1, connect formula lightning arrester, it is characterized in that, connect formula lightning arrester after described to be connected with protected electric equipment by front connector; Wherein:
Described front connector is arranged on the equipment casing of described protected electric equipment by double end metal bolts, and utilizes spring pad and the fixing described front connector of nut;
After described, connect formula lightning arrester by its equipment connection interface, utilize metal bolts guide rod to be arranged in front connector, and utilize that spring pad and nut are fixing connects formula lightning arrester after described, connect the equipment connection interface of formula lightning arrester after utilizing insulating plug sealing described.
6. after as claimed in claim 5, connect formula lightning arrester, it is characterized in that, connect formula lightning arrester after described and also comprise the radome being arranged on outside described insulating plug.
As described in claim 5 or 6 after connect formula lightning arrester, it is characterized in that, connect between formula lightning arrester and front connector after described and be also provided with one or more rear joints, wherein:
Described rear joint is arranged on rear joint in described front connector or above by metal guide rod;
After described, connecing formula lightning arrester is arranged on last rear joint by metal bolts guide rod.
8. after as claimed in claim 1, connect formula lightning arrester, it is characterized in that, described protected electric equipment comprises switch cubicle, transformer, cable distribution box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033004.5U CN203660484U (en) | 2014-01-20 | 2014-01-20 | Back-connection-type lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033004.5U CN203660484U (en) | 2014-01-20 | 2014-01-20 | Back-connection-type lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203660484U true CN203660484U (en) | 2014-06-18 |
Family
ID=50926838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420033004.5U Expired - Fee Related CN203660484U (en) | 2014-01-20 | 2014-01-20 | Back-connection-type lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203660484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247364A (en) * | 2019-07-25 | 2019-09-17 | 吉徽电气集团有限公司 | One kind is direct insertion to be followed by arrester |
-
2014
- 2014-01-20 CN CN201420033004.5U patent/CN203660484U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247364A (en) * | 2019-07-25 | 2019-09-17 | 吉徽电气集团有限公司 | One kind is direct insertion to be followed by arrester |
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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: 20140618 Termination date: 20180120 |