CN102063983A - Plug-in arrester formed through encapsulation - Google Patents
Plug-in arrester formed through encapsulation Download PDFInfo
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- CN102063983A CN102063983A CN2009103097309A CN200910309730A CN102063983A CN 102063983 A CN102063983 A CN 102063983A CN 2009103097309 A CN2009103097309 A CN 2009103097309A CN 200910309730 A CN200910309730 A CN 200910309730A CN 102063983 A CN102063983 A CN 102063983A
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- plug
- core body
- arrester
- insulating layer
- lightning arrester
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Abstract
The invention provides a plug-in arrester formed through encapsulation, mainly solving the problem of poor airtightness of the plug-in arrester in the prior art and also solving the problems of poor partial discharge property and insulating property, easiness of ageing, short service life, and the like of the plug-in arrester, which are caused by the poor airtightness. The plug-in arrester formed through encapsulation comprises a shield cover, an outer insulating layer, a wire connecting terminal and a core body, wherein the core body comprises a resistor disc group, an upper electrode, a lower electrode and an inner insulating layer, wherein the upper electrode and the lower electrode are connected to both ends of the resistor disc group; one side of the shield cover is electrically connected with the wire connecting terminal, and the other side is sleeved with the core body. The plug-in arrester formed through encapsulation is characterized by also comprising a joint sleeve and a stress cone, wherein the stress cone is plugged into an interface positioned on the lower part of the joint sleeve; an overvoltage protector is fixedly connected to the stress cone; one end of a connecting wire is connected with a cable armouring layer and a shield sleeve, and the other end is connected with the overvoltage protector.
Description
Technical field
The present invention relates to a kind of lightning arrester, be specifically related to a kind of plug-in lightning arrester of embedding moulding.Be primarily aimed at the problem of plug-in lightning arrester sealing difference in the prior art.
Background technology
Lightning arrester is that transforming plant protecting device exempts from the equipment that lightning surge attacks.When the lightning surge of transformer station is imported on road along the line above the protection of arrester level into; lightning arrester at first discharges; and, utilize earthing device to make the lightning voltage amplitude limitation below horizontal at protected equipment lightning impulse with the introducing the earth of lightning current through good conductor safety, electric equipment is protected.
At present, existing plug-in lightning arrester mainly is divided into elbow-shaped inserting/pulling type lightning arrester, T type plug-in lightning arrester and direct plugging-in plug-in lightning arrester.The plug-in lightning arrester is the split part, after the core body machine-shaping soon, is plugged in the insulating coating.Elbow-shaped inserting/pulling type lightning arrester, T type plug-in lightning arrester and direct plugging-in plug-in lightning arrester adopt composite sheath with resistor disc core body embedding moulding; stretch out at the place, core body high pressure end of incoming cables of embedding moulding simultaneously and form the plug hole; as the high pressure inlet wire of lightning arrester with install and fix usefulness, again lightning arrester is inserted the system implementation protection that needs overvoltage protection.Its sealing mainly is that the interference fit when pegging graft is finished, and the contact-making surface of core body and insulating coating mostly is rubber or epoxy resin etc., be subject to the environment influence of expanding with heat and contract with cold, reliability can't be protected, thereby causes that the lightning arrester sealing is poor, the poor insulativity drawn game puts bigger quality problems and produce.
Summary of the invention
The invention provides a kind of plug-in lightning arrester of embedding moulding, mainly solved the problem of plug-in lightning arrester sealing difference in the prior art.
Technical solution of the present invention is as follows: the plug-in lightning arrester of this embedding moulding, comprise radome, binding post, core body and external insulation layer, and described radome one side is electrically connected with binding post, and opposite side is socketed on the core body; Described core body comprise the resistor disc group, with top electrode, bottom electrode and inner insulating layer that resistor disc group two ends are connected, it is characterized in that: between described radome and inner insulating layer and the external insulation layer, be the embedding global formation between inner insulating layer and the external insulation layer.The stress cone that the above also comprises the joint overcoat and is plugged on joint overcoat bottom interface, overvoltage protection device is fixedly connected on the stress cone, connects lead one end and is connected with housing with cable sheath, and the other end is connected with overvoltage protection device.
The invention has the advantages that:
The plug-in lightning arrester crystal entertainment ball of embedding moulding provided by the invention owing to be to be tightly connected between core body insulating barrier and the external insulation layer, has been avoided because of sealing the poor problems such as general ability is put performance and insulation property are poor, easily wear out, useful life is short that cause taking shelter from the thunder.When overvoltage took place, protector was restricted to the voltage magnitude on the armour in the safe scope, and the protection cable insulation is not compromised, and has increased the safety of cable greatly, and cost is low, and wiring is simple, and is easy for installation.Cable connector head and protector integral structure, the usage space of having dwindled product.
Description of drawings
Fig. 1 is the plug-in lightning arrester structural representation of embedding moulding;
Embodiment
Below in conjunction with accompanying drawing the present invention is described in detail:
As shown in Figure 1:
This plug-in lightning arrester, comprise core body 1, binding post 3, radome 5 and external insulation layer 4, core body 1 comprises resistor disc group 11, the top electrode 13, bottom electrode 14 and the inner insulating layer 12 that are connected with resistor disc group two ends, between radome 5 and inner insulating layer and the external insulation layer, be the embedding global formation between inner insulating layer and the external insulation layer.Radome 5 one sides are electrically connected with binding post 3, and opposite side is socketed on the core body 1; Seamless connectivity between radome 5 and inner insulating layer 12 and the external insulation layer 4, between inner insulating layer 12 and the external insulation layer 4.Overvoltage protection device 7 also can be arranged on the stress cone 2, and overvoltage protection device 7 can be arranged in parallel, also can vertically be provided with when overvoltage protection device 7 is arranged on the stress cone 2.When overvoltage protection device 7 be arranged in parallel, connect lead 51 and lay out, be connected overvoltage protection device 7 other end ground connection with overvoltage protection device 7 through stress cone 2 lower port; When overvoltage protection device 7 vertically is provided with, connect lead 51, directly be connected internally, connect lead 51 and do not expose overvoltage protection device 7 other end ground connection with overvoltage protection device 7 through stress cone 2.
Above-mentioned seamless connectivity is meant sealing between external insulation layer 4 and the inner insulating layer 12, sealing between radome 5 and inner insulating layer 12 and the external insulation layer 4.After the plug-in lightning arrester machines, be processed into integral piece between inner insulating layer 12, the external insulation layer 4, in manufacture process, avoided because of sealing the poor problems such as general ability is put performance and insulation property are poor, easily wear out, useful life is short that cause taking shelter from the thunder.The plug-in lightning arrester crystal entertainment ball of this embedding moulding has been avoided because of sealing the poor problems such as general ability is put performance and insulation property are poor, easily wear out, useful life is short that cause taking shelter from the thunder.Because between core body insulating barrier and the external insulation layer is to be tightly connected, when overvoltage took place, protector was restricted to the voltage magnitude on the armour in the safe scope; the protection cable insulation is not compromised, and has increased the safety of cable greatly, and cost is low; wiring is simple, and is easy for installation.Cable connector head and protector integral structure, the usage space of having dwindled product.
Claims (2)
1. the plug-in lightning arrester of an embedding moulding comprises radome, binding post, core body and external insulation layer, and described radome one side is electrically connected with binding post, and opposite side is socketed on the core body; Described core body comprise the resistor disc group, with top electrode, bottom electrode and inner insulating layer that resistor disc group two ends are connected, it is characterized in that: between described radome and inner insulating layer and the external insulation layer, be the embedding global formation between inner insulating layer and the external insulation layer.
2. according to the plug-in lightning arrester of the described embedding moulding of claim 1; it is characterized in that: also comprise joint overcoat and the stress cone that is plugged on joint overcoat bottom interface; overvoltage protection device is fixedly connected on the stress cone; connect lead one end and be connected with housing with cable sheath, the other end is connected with overvoltage protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103097309A CN102063983A (en) | 2009-11-13 | 2009-11-13 | Plug-in arrester formed through encapsulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103097309A CN102063983A (en) | 2009-11-13 | 2009-11-13 | Plug-in arrester formed through encapsulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102063983A true CN102063983A (en) | 2011-05-18 |
Family
ID=43999216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103097309A Pending CN102063983A (en) | 2009-11-13 | 2009-11-13 | Plug-in arrester formed through encapsulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102063983A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108922703A (en) * | 2018-06-11 | 2018-11-30 | 南方电网科学研究院有限责任公司 | A kind of arrester |
| CN116190026A (en) * | 2023-02-08 | 2023-05-30 | 北京华电新能源电工材料研究院有限公司 | Miniaturized touchable plug-in arrester |
-
2009
- 2009-11-13 CN CN2009103097309A patent/CN102063983A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108922703A (en) * | 2018-06-11 | 2018-11-30 | 南方电网科学研究院有限责任公司 | A kind of arrester |
| CN116190026A (en) * | 2023-02-08 | 2023-05-30 | 北京华电新能源电工材料研究院有限公司 | Miniaturized touchable plug-in arrester |
| CN116190026B (en) * | 2023-02-08 | 2023-11-24 | 北京华电新能源电工材料研究院有限公司 | Miniaturized touchable plug-in arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110518 |