CN103592469A - Insulating isolation device for high-voltage direct-current test of metallic oxide arrester - Google Patents
Insulating isolation device for high-voltage direct-current test of metallic oxide arrester Download PDFInfo
- Publication number
- CN103592469A CN103592469A CN201310484706.5A CN201310484706A CN103592469A CN 103592469 A CN103592469 A CN 103592469A CN 201310484706 A CN201310484706 A CN 201310484706A CN 103592469 A CN103592469 A CN 103592469A
- Authority
- CN
- China
- Prior art keywords
- cover body
- cover
- oxide arrester
- arrester
- metal oxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Thermistors And Varistors (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to an insulating isolation device for a high-voltage direct-current test of a metallic oxide arrester. The insulating isolation device is a bell-shaped cover body, wherein the lower end of the cover body is open, the cover body is hollow and is made of insulating materials, the cover body comprises a cover top arranged on the top, and a cover body arranged on the lower portion, an inner cavity of the cover top is matched with the head of the metallic oxide arrester in shape, the diameter of the opening portion of the lower end of the cover body is no smaller than 1.5 times that of an umbrella skirt of the arrester, and the height of the cover body at least meets the requirement that when the cover top is installed on the head of the metallic oxide arrester in a sleeved mode, the cover body can partially cover the umbrella skirt on the upper portion of the arrester. The insulating isolation device is good in flexibility, can be conveniently placed in a narrow space or a cramped space, and is good in safety performance, convenient to carry and easy to operate.
Description
Technical field
The present invention relates to a kind of for 35kV in indoor or switch cubicle and following metal oxide arrester HVDC TEST insulated isolated device.
Background technology
Metal oxide arrester HVDC TEST object be mainly check whether its valve block makes moist, aging, determine whether its performance meets the requirements, thus the success of this test to carry out the operating condition of check metal oxide arrester be very important.While 35kV and following metal oxide arrester being carried out to HVDC TEST in indoor or switch cubicle, owing to limited by space or surrounding environment, often high-voltage dc voltage can add, and insulation distance is inadequate, and lightning arrester head causes and punctures atmospherical discharges; In addition, because work scene is large, setting is many, and personnel are more spuious, during control disappearance, easily cause producing induced voltage on other electrical equipments in pressure process, is easy to cause the accident that induced voltage is hurted sb.'s feelings to occur.Therefore, while at present 35kV in indoor or switch cubicle and following metal oxide arrester being carried out to HVDC TEST, the method for taking is, lightning arrester integral body is dismantled, and places pressurization on the ground, or intercepts with simple and easy seal.The former is time-consuming, and the latter's inadequate standard that operates is simultaneously also stable not.
Summary of the invention
Narrower and small or narrow and have a problem that is difficult to test in order the high pressure testing operation space such as to solve in above-mentioned switch cubicle or indoor, the invention provides a kind of metal oxide arrester HVDC TEST insulated isolated device, can adapt to the places such as high-potting working space is narrower and small or narrow, without dismounting lightning arrester, test is not only convenient, also safety standard.
The present invention has adopted following technical scheme: described spacer assembly is that lower end is uncovered, the bell cover body of inner hollow, cover body is made by insulating material, cover body comprises cover top and two parts of lower cover body that are placed in top, and the inner chamber on cover top coordinates with metal oxide arrester nose shape; The diameter of the uncovered part in cover body lower end is not less than 1.5 times of lightning arrester full skirt diameter; Cover height degree is at least when cover top cover is contained in metal oxide arrester head, and cover body can partly cover lightning arrester top full skirt.
Before test, first the high-voltage connection of lightning arrester head is untied, then test cable one end is connected on lightning arrester head securely, the other end is drawn from cover body through hole, finally cover body is enclosed within on lightning arrester by lightning arrester upper end, cover top fastens lightning arrester head and is supported, and cover body covers a part for lightning arrester top full skirt, by after step wiring, can normally carry out HVDC TEST.
Further, cover both sides, body bottom have the through hole passing through for HVDC TEST cable.Test cable, by the through hole process of covering with it, is conducive to the safety standard of test site.
Further, cover body is that the silicon rubber of 100kV is made by adopting industrial frequency withstand voltage.
Beneficial effect of the present invention is: 1, easy for installation, cover top can be buckled in lightning arrester head and realize location, and because cover body is bell, the light cabrage of head, can be stabilized on lightning arrester head; 2, the whole silicon rubber that adopts is manufactured, and its pliability is good, is convenient to lay in narrow and small or narrow space; 3, design 100kV voltage withstand class, enough deals with 35kV and following metal oxide arrester HVDC TEST demand; 4, HVDC TEST cable, by cover body through hole, has guaranteed the insulation distance of cable and surrounding devices, and security performance is good; 5, this device has increased the dielectric strength of lightning arrester head and adjacent electrical equipment, can measure reliably, exactly direct current 1mA voltage (U
1mA) and 0.75U
1mAunder leakage current, and the induced voltage of having avoided adjacent electrical equipment to produce because of the pressurization event of hurting sb.'s feelings occurs; 6, this device is light and handy, be easy to carry, and simple to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, metal oxide arrester HVDC TEST of the present invention is that lower end is uncovered, the bell cover body of inner hollow with insulated isolated device, cover body is made by insulating material, cover body comprises cover top 1 and 2 two parts of lower cover body that are placed in top, the inner chamber on cover top 1 coordinates with metal oxide arrester nose shape, 1 inner chamber height 5cm left and right, cover top, its 11 diameter 4cm left and right, bottom.The diameter of the cover body 2 uncovered parts 21 in lower end is not less than 1.5 times of lightning arrester full skirt diameter, and in this example, diameter is 20cm left and right; Cover body 2 is highly at least when cover top cover is contained in metal oxide arrester head, and cover body 2 can partly cover lightning arrester top full skirt, and in this example, covering height degree is 10cm left and right.
Cover body 2 both sides, bottom have the through hole 22,23 passing through for HVDC TEST cable, and test cable, from covering one of them the through hole process body 2, is conducive to the safety standard of test site.
For guaranteeing voltage withstand class, cover body is that the silicon rubber of 100kV is made by adopting industrial frequency withstand voltage, and the thickness of cover body wall is not less than 2.5mm.
Claims (3)
1. metal oxide arrester HVDC TEST insulated isolated device, it is characterized in that: described spacer assembly is that lower end is uncovered, the bell cover body of inner hollow, cover body is made by insulating material, cover body comprises cover top (1) and (2) two parts of lower cover body that are placed in top, and the inner chamber on cover top (1) coordinates with metal oxide arrester nose shape; The diameter of the uncovered part in cover body (2) lower end is not less than 1.5 times of lightning arrester full skirt diameter; Cover body (2) is highly at least when cover top cover is contained in metal oxide arrester head, and cover body can partly cover lightning arrester top full skirt.
2. metal oxide arrester HVDC TEST insulated isolated device according to claim 1, is characterized in that: cover body (2) both sides, bottom have the through hole (22,23) passing through for HVDC TEST cable.
3. metal oxide arrester HVDC TEST insulated isolated device according to claim 1 and 2, is characterized in that: cover body is that the silicon rubber of 100kV is made by adopting industrial frequency withstand voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310484706.5A CN103592469B (en) | 2013-10-16 | 2013-10-16 | Metal oxide arrester HVDC TEST insulated isolated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310484706.5A CN103592469B (en) | 2013-10-16 | 2013-10-16 | Metal oxide arrester HVDC TEST insulated isolated device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103592469A true CN103592469A (en) | 2014-02-19 |
| CN103592469B CN103592469B (en) | 2016-09-07 |
Family
ID=50082689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310484706.5A Active CN103592469B (en) | 2013-10-16 | 2013-10-16 | Metal oxide arrester HVDC TEST insulated isolated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103592469B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259485A (en) * | 2015-11-05 | 2016-01-20 | 国家电网公司 | Insulating cover for high-voltage test of lightning arrester |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04127071A (en) * | 1990-09-19 | 1992-04-28 | Ngk Insulators Ltd | Inspection of zinc oxide arrester |
| US20050231881A1 (en) * | 2004-04-07 | 2005-10-20 | Coffeen Larry T | Apparatus and method for field testing MOV arresters |
| CN201859720U (en) * | 2010-08-19 | 2011-06-08 | 大连法伏安电器有限公司 | Full sealed compound insulation metallic oxide arrester |
| CN202473444U (en) * | 2012-02-24 | 2012-10-03 | 滁州天成有机硅高分子材料有限公司 | Lightning arrester sheath |
| CN203502435U (en) * | 2013-10-16 | 2014-03-26 | 国网安徽省电力公司铜陵供电公司 | Insulation isolation device used for metal oxide arrester high-voltage DC test |
-
2013
- 2013-10-16 CN CN201310484706.5A patent/CN103592469B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04127071A (en) * | 1990-09-19 | 1992-04-28 | Ngk Insulators Ltd | Inspection of zinc oxide arrester |
| US20050231881A1 (en) * | 2004-04-07 | 2005-10-20 | Coffeen Larry T | Apparatus and method for field testing MOV arresters |
| CN201859720U (en) * | 2010-08-19 | 2011-06-08 | 大连法伏安电器有限公司 | Full sealed compound insulation metallic oxide arrester |
| CN202473444U (en) * | 2012-02-24 | 2012-10-03 | 滁州天成有机硅高分子材料有限公司 | Lightning arrester sheath |
| CN203502435U (en) * | 2013-10-16 | 2014-03-26 | 国网安徽省电力公司铜陵供电公司 | Insulation isolation device used for metal oxide arrester high-voltage DC test |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259485A (en) * | 2015-11-05 | 2016-01-20 | 国家电网公司 | Insulating cover for high-voltage test of lightning arrester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103592469B (en) | 2016-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2639903A1 (en) | Switchgear | |
| CN103839727B (en) | Solid insulated full-sealed tri-station isolating switch | |
| CN203134677U (en) | Insulating cylinder and main loop structure adopting same | |
| CN105743053B (en) | A kind of capacitance type cable terminal being not filled with dielectric | |
| CN203502435U (en) | Insulation isolation device used for metal oxide arrester high-voltage DC test | |
| CN205581256U (en) | Dead end insulator shields cover testing platform | |
| CN103592469A (en) | Insulating isolation device for high-voltage direct-current test of metallic oxide arrester | |
| CN207263875U (en) | A kind of adjustable gas-insulated breakdown test device in closed gap | |
| CN202886542U (en) | Junction device for cable high-voltage resistance test | |
| CN203932760U (en) | Isolating switch insulating barrier on a kind of post | |
| CN103743978B (en) | Multifunction testing device for gas-filled switch cabinet | |
| CN104201595B (en) | A kind of main insulation body for solid-state insulated switchgear | |
| JP5858516B2 (en) | Insulation plug for equipment direct connection T type, and equipment direct connection T type terminal connection using the same | |
| CN203850196U (en) | Solid-insulation fully sealed three-station isolating switch | |
| CN203054161U (en) | Protection device for cable withstand voltage test | |
| CN204068009U (en) | A kind of main insulation body for solid-state insulated switchgear | |
| CN206516981U (en) | Combined cross arm insulated shielding cover | |
| CN204068041U (en) | For the insulation isolation fixture of 10kV overhead distribution equipment | |
| CN204517391U (en) | A kind of faulty indication protector | |
| CN203659670U (en) | Pole column and upper wall structure thereof | |
| CN203553900U (en) | Neutral point complete set protection device for transformer | |
| CN203720223U (en) | Novel independent grounding device used for online monitor of can-type lightning arrester | |
| CN208076653U (en) | A kind of special-shaped experimental rig of insulation | |
| CN209216727U (en) | A kind of transformer without exposed electrical body | |
| CN203406512U (en) | Breaker chamber with bus isolating function and bus measuring function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |