CN2202978Y - Final-screen automatic grounding protector - Google Patents
Final-screen automatic grounding protector Download PDFInfo
- Publication number
- CN2202978Y CN2202978Y CN 94238142 CN94238142U CN2202978Y CN 2202978 Y CN2202978 Y CN 2202978Y CN 94238142 CN94238142 CN 94238142 CN 94238142 U CN94238142 U CN 94238142U CN 2202978 Y CN2202978 Y CN 2202978Y
- Authority
- CN
- China
- Prior art keywords
- wiring
- screw rod
- protective cover
- ring
- spring
- 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.)
- Expired - Fee Related
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a final-screen automatic grounding protector, which comprises a protective cover and a final-screen wiring post, wherein, the protective cover comprises a protective cover casing, a steel wire snap ring, a spring pressing ring, and a spring; the final-screen wiring post comprises a wiring screw rod, a specially-made flat washer, a pressing ring, a wiring holder, a small porcelain sleeve, and a lead-out wire; the wiring screw rod is sheathed with the small porcelain sleeve; the pressing ring is arranged on the wiring holder, and is fixedly connected with the wiring holder through the screw rod; the steel wire snap ring is arranged in the protective cover casing; the specially-made flat washer, the pressing ring and the spring are sheathed on the wiring screw rod; the protective cover casing and the pressing ring are screwed to be used for a high-voltage capacitance graded current mutual inductor; a capacitance graded sleeve tube is connected to the ground. The utility model has the advantages of simple structure, and automatic grounding. The utility model is not easy to corrode or clash.
Description
The utility model relate to the end that is used for high-voltage capacitance formula current transformer and condenser-type terminal () shield automatic earth protective device, belong to the emergency protective device class of essential electronic element.
The end screen ground connection of existing high-voltage capacitance formula current transformer and condenser-type terminal is adopted the manual ground connection of unprotect multiply bare copper wire; corrosion and clashing and breaking phenomenon very easily take place; when product moves; as the corrosion of end screen circuit takes place disconnect phenomenon; very easily cause the product electrical breakdown; and even the product blast, major accidents such as system earth short circuit.
The purpose of this utility model is the defective that overcomes existing high-voltage capacitance formula current transformer and condenser-type terminal end screen ground connection, provides a kind of ground connection reliable, improves the end screen earthing device of end screen ground path operational environment.
The purpose of this utility model is achieved by utilizing the elastic force reliable ground.
The utility model has the advantages that it is simple in structure, volume is little, and is in light weight, and good looking appearance is realized automatic ground connection, and is easy to loading and unloading, and the ground path sealing is difficult for corrosion and clashing and breaking.
Embodiment of the present utility model is provided by appended accompanying drawing, below in conjunction with description of drawings structure of the present utility model and operation principle.Referring to accompanying drawing, the utility model comprises protective cover and end screen binding post two parts, and protective cover comprises protection case 1, steel wire ring washer 2, spring pressuring ring 3 and spring 4, end layer binding post comprises wiring screw rod 5, special plain washer 6, trim ring 7, junction block 8, little insulator 9 and end screen lead-out wire 10; Wiring screw rod 5 puts little insulator 9; trim ring 7 is contained on the junction block 8; trim ring 7 is by screw rod and junction block 8 affixed and link screw rods 5; the steel wire ring washer is contained in the protection case 1; special plain washer 6; spring pressuring ring 3 and spring 4 are enclosed within on the wiring screw rod; protection case 1 and trim ring 7 pass through thread connection; according to after above-mentioned order installs each parts; screw protection case screw thread; contact plate and packing ring in the cover; lead-out wire 10 grades borrow spring force to form reliable connection; because of the utility model is contained on mutual device of high-voltage capacitance formula electric current and the condenser-type terminal; so make above-mentioned two product reliable grounds, the protection case of outwarding winding promptly disconnects ground path.
Claims (1)
- The automatic earth protective device of a kind of end screen, comprise protective cover and end screen binding post, it is characterized in that described protective cover comprises protection case (1), steel wire ring washer (2), spring pressuring ring (3) and spring (4), end screen binding post comprises wiring screw rod (5), special plain washer (6), trim ring (7), junction block (8), little insulator (5) and end screen lead-out wire (10); Wiring screw rod puts little insulator, trim ring is contained on the junction block; trim ring is affixed by screw rod and junction block; the steel wire ring washer is contained in the protective cover (1), and special plain washer, spring pressuring ring and spring housing are on wiring helical screw rod, and protection case and trim ring (7) pass through thread connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94238142 CN2202978Y (en) | 1994-08-31 | 1994-08-31 | Final-screen automatic grounding protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94238142 CN2202978Y (en) | 1994-08-31 | 1994-08-31 | Final-screen automatic grounding protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2202978Y true CN2202978Y (en) | 1995-07-05 |
Family
ID=33845635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94238142 Expired - Fee Related CN2202978Y (en) | 1994-08-31 | 1994-08-31 | Final-screen automatic grounding protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2202978Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785080A (en) * | 2016-03-17 | 2016-07-20 | 许继（厦门）智能电力设备股份有限公司 | GIS current transformer high-voltage test secondary circuit tool |
| CN111599584A (en) * | 2020-07-20 | 2020-08-28 | 广东电网有限责任公司东莞供电局 | High-voltage bushing end screen device |
| CN112489901A (en) * | 2020-11-27 | 2021-03-12 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Be used for direct current wall bushing to use end screen extraction element |
-
1994
- 1994-08-31 CN CN 94238142 patent/CN2202978Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785080A (en) * | 2016-03-17 | 2016-07-20 | 许继（厦门）智能电力设备股份有限公司 | GIS current transformer high-voltage test secondary circuit tool |
| CN105785080B (en) * | 2016-03-17 | 2018-09-04 | 许继（厦门）智能电力设备股份有限公司 | The secondary circuit tooling of GIS current transformer high-pottings |
| CN111599584A (en) * | 2020-07-20 | 2020-08-28 | 广东电网有限责任公司东莞供电局 | High-voltage bushing end screen device |
| CN112489901A (en) * | 2020-11-27 | 2021-03-12 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Be used for direct current wall bushing to use end screen extraction element |
| CN112489901B (en) * | 2020-11-27 | 2022-10-25 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Be used for direct current wall bushing to use end screen extraction element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |