CN103258604A - Adjustable isolation voltage electric power test insulator chain applied to lightning-protecting study - Google Patents
Adjustable isolation voltage electric power test insulator chain applied to lightning-protecting study Download PDFInfo
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- CN103258604A CN103258604A CN2013101516573A CN201310151657A CN103258604A CN 103258604 A CN103258604 A CN 103258604A CN 2013101516573 A CN2013101516573 A CN 2013101516573A CN 201310151657 A CN201310151657 A CN 201310151657A CN 103258604 A CN103258604 A CN 103258604A
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- discharge cover
- insulator string
- electric power
- voltage electric
- lightning
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Abstract
The invention discloses an adjustable isolation voltage electric power test insulator chain applied to a lightning-protecting study. An upper electric discharging cover is installed at the position of the upper portion of the insulator chain. The upper electric discharging cover is in a bowl shape with a downward opening. A plurality of electric discharging needles are evenly distributed at the edge of the bowl. A lower electric discharging cover is installed at the lower portion of the insulator chain. The lower electric discharging cover is in a bowl shape with an upward opening. The lower electric discharging cover is electrically connected with a ground wire through a wire. The adjustable isolation voltage electric power test insulator chain has the advantages of being simple in structure, ingenious in design, good in lightning-protecting effect, low in manufacturing cost, easy to popularize and the like.
Description
Technical field
The present invention relates to the electric power transmission utensil, particularly have the electric power experiment insulator string of lightning protection function.
Background technology
From various countries' electrical network practical operation situation, thunderbolt remains the main harm of transmission line safe and reliable operation, and the ratio that the line tripping that is caused by thunderbolt accounts for the fault sum constantly rises.Japan and Sweden power system accident over half is all caused owing to transmission line is struck by lightning; Egypt also once had a power failure because the thunderbolt power main makes the whole nation; The transmission line of 3.27 ten thousand kilometers of national length overalls such as the former Soviet Union that international conference on large HV electric systems is announced, the U.S., 275-500kV electric pressure, continuous 3 years are in service, and the damage to crops caused by thunder accident reaches 60% of total accident.Transmission line is as the easiest part of being struck by lightning in the electrical network, and thunder and lightning occurs repeatedly by insulator string is punctured the transmission of electricity accident that causes.
In the electric power transmission line, insulator string is installed on the electric force pole tower through suspension member on it, power transmission line is suspended on the following suspension member of insulator string flexibly, and power transmission line and electric force pole tower must keep insulation each other at any time, normally carry otherwise can influence electric power.
When the thunderstorm weather thunder and lightning took place, the powerful electric current of thunder and lightning may puncture insulator string, thereby makes short circuit between power transmission line and the electric force pole tower, thereby caused the transmission of electricity accident.And existing insulator string does not have special lightning Protection Design.
Summary of the invention
The purpose of this invention is to provide a kind of can the shielding insulation substring and thunder and lightning imported underground a kind of adjustable insulation voltage electric power experiment insulator string with lightning protection function.
The object of the present invention is achieved like this: a kind of adjustable insulation voltage electric power experiment insulator string that is applied to lightning protection research, comprise insulator string, discharge cover being installed on the insulator string upper position, and last discharge is covered and is the bowl-type that Open Side Down, and bowl along on be evenly equipped with a plurality of spray points; The insulator string bottom is equipped with down the discharge cover, and following discharge cover is the bowl-type that opening makes progress, and the discharge cover is electrically connected with ground wire through lead down.
Described go up the discharge cover be adjacent to shown in suspension member below on the insulator string, following discharge cover be adjacent to shown under the insulator string above the suspension member.
The bowl of described down discharge cover along on be evenly equipped with a plurality of spray points.
The described discharge cover of going up is discharge cover on the aluminium matter or the copper discharge cover of going up; The described cover of discharge down is discharge cover under the aluminium matter or copper discharge cover down.
The described discharge cover of going up is electrically connected with shaft tower through lead.
The invention has the beneficial effects as follows: going up discharges to be covered with counts bowl-type (or cylindrical shape), it is with the whole cover caps of whole insulator string, thunder-strike current spray point on it can be discharged to the cover that discharges down, and thunder-strike current is introduced underground by the cover that discharges down, thereby avoided powerful lightning current directly to flow through insulator string and with the disadvantage of its puncture, guaranteed electric power safety production.
That the present invention has is simple in structure, be skillfully constructed, lightning protection effect is good, cost of manufacture is low, be easy to characteristics such as popularization.
Description of drawings
Fig. 1 is structure chart of the present invention.
Embodiment
Fig. 1 illustrates, and a kind of adjustable insulation voltage electric power experiment insulator string that is applied to lightning protection research being equipped with discharge cover 2 on insulator string 1 upper position, and last discharge is covered 2 and is the bowl-type that Open Side Down, and bowl along on be evenly equipped with a plurality of spray points; Insulator string 1 bottom is equipped with down discharge cover 3, and following discharge cover 3 is the bowl-type that opening makes progress, and discharges down and cover 3 and be electrically connected with ground wire through lead.Power transmission line 4 flexible suspensions are on the following suspension member 1b of insulator string.Last discharge cover 2 is discharge cover or the copper discharge cover of going up on the aluminium matter, and following discharge cover 3 is discharge cover or copper discharge cover down under the aluminium matter.The bowl of following discharge cover 3 along on be evenly equipped with a plurality of spray points.Spray point on the following discharge cover and the corresponding setting of spray point of last discharge cover during thunderbolt, have electric arc 5 to produce between the two.Suspension member 1a below on the last discharge cover 2 contiguous insulator strings 1,1 time suspension member 1b top of following discharge cover 3 contiguous insulator strings.Usually, last discharge cover is installed in suspension member 1a lower end, and following discharge cover is installed in down the suspension member upper end.According to circumstances, also can consider to go up discharge cover 2 is electrically connected with shaft tower through lead.
Claims (5)
1. an adjustable insulation voltage electric power that is applied to lightning protection research is tested insulator string, comprise, insulator string (1), it is characterized in that, discharge cover (2) is installed on described insulator string (1) upper position, last discharge cover (2) is the bowl-type that Open Side Down, and bowl along on be evenly equipped with a plurality of spray points; Insulator string (1) bottom is equipped with down discharge cover (3), and following discharge cover (3) is the bowl-type that opening makes progress, and discharge cover (3) is electrically connected with ground wire through lead down.
2. a kind of adjustable insulation voltage electric power that is applied to lightning protection research according to claim 1 is tested insulator string, it is characterized in that, described last suspension member (1a) below of going up the contiguous described insulator string of discharge cover (2) (1), following suspension member (1b) top of the contiguous described insulator string of following discharge cover (3) (1).
3. a kind of adjustable insulation voltage electric power experiment insulator string that is applied to lightning protection research according to claim 1 and 2 is characterized in that, the bowl of described discharge cover (3) down along on be evenly equipped with a plurality of spray points.
4. a kind of adjustable insulation voltage electric power experiment insulator string that is applied to lightning protection research according to claim 3 is characterized in that, the described discharge cover (2) of going up is discharge cover or the copper discharge cover of going up on the aluminium matter; Described discharge cover (3) down is discharge cover or copper discharge cover down under the aluminium matter.
5. a kind of adjustable insulation voltage electric power experiment insulator string that is applied to lightning protection research according to claim 1 is characterized in that the described discharge cover (2) of going up is electrically connected with shaft tower through lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101516573A CN103258604A (en) | 2013-04-27 | 2013-04-27 | Adjustable isolation voltage electric power test insulator chain applied to lightning-protecting study |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101516573A CN103258604A (en) | 2013-04-27 | 2013-04-27 | Adjustable isolation voltage electric power test insulator chain applied to lightning-protecting study |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103258604A true CN103258604A (en) | 2013-08-21 |
Family
ID=48962467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101516573A Pending CN103258604A (en) | 2013-04-27 | 2013-04-27 | Adjustable isolation voltage electric power test insulator chain applied to lightning-protecting study |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103258604A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06162853A (en) * | 1992-11-20 | 1994-06-10 | Ngk Insulators Ltd | Jumper wire supporting insulator device |
| JPH0737458A (en) * | 1993-07-26 | 1995-02-07 | Asahi Tec Corp | Earth fitting for suspension insulator device |
| CN203276980U (en) * | 2013-04-27 | 2013-11-06 | 国家电网公司 | Isolation voltage adjustable insulator string used for electric power experiment and applied to lightning protection research |
-
2013
- 2013-04-27 CN CN2013101516573A patent/CN103258604A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06162853A (en) * | 1992-11-20 | 1994-06-10 | Ngk Insulators Ltd | Jumper wire supporting insulator device |
| JPH0737458A (en) * | 1993-07-26 | 1995-02-07 | Asahi Tec Corp | Earth fitting for suspension insulator device |
| CN203276980U (en) * | 2013-04-27 | 2013-11-06 | 国家电网公司 | Isolation voltage adjustable insulator string used for electric power experiment and applied to lightning protection research |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130821 |