CN102360879B - A kind of capacitor voltage divider medium-voltage terminal pin configuration - Google Patents
A kind of capacitor voltage divider medium-voltage terminal pin configuration Download PDFInfo
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- CN102360879B CN102360879B CN201110221482.XA CN201110221482A CN102360879B CN 102360879 B CN102360879 B CN 102360879B CN 201110221482 A CN201110221482 A CN 201110221482A CN 102360879 B CN102360879 B CN 102360879B
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- voltage divider
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Abstract
The present invention discloses a kind of capacitor voltage divider medium-voltage terminal pin configuration, can be widely used in capacitor voltage divider medium-voltage terminal, it comprises the screw thread copper bar that Surface coating has insulating barrier, described screw thread copper bar is provided with the terminals be exposed to outside insulating barrier, on terminals, cover has packing ring, lead-in wire is connected on packing ring, packing ring is fixedly clamped on screw thread copper bar by the first nut and copper ball shape block, copper ball shape block is arranged at the outside of terminals, and the head of terminals is wrapped in copper ball shape block the inside, compared with the sub-pin configuration of traditional capacitance voltage divider intermediate voltage terminal, reduce partial discharge quantity, prevent the damage of insulation and aging, ensure that the normal work of capacitor voltage divider medium-voltage terminal.
Description
Technical field
The present invention relates to a kind of capacitor voltage divider medium-voltage terminal, especially relate to a kind of capacitor voltage divider medium-voltage terminal pin configuration.
Background technology
At present, capacitor voltage divider is widely used in power equipment as a kind of voltage transformer, it obtains the intermediate voltage proportional with primary voltage by intermediate voltage terminal, along with the progress of technology and improving constantly of product electric pressure, the performance of user to electric product is also more and more higher, local discharging level is one of them very important index, and partial discharge refers to that product is under the effect of certain applied voltage, the electric discharge that the weakness in insulation occurs.Refer to shown in Fig. 1, Fig. 1 is the schematic diagram of traditional capacitor voltage divider medium-voltage terminal pin configuration, screw thread copper bar 1 surface is all coated with teflon insulation layer 7, screw thread copper bar 1 is provided with the terminals 6 be exposed to outside insulating barrier, packing ring 5 is clipped between two hexagonal brass nuts 2 be tightened on screw thread copper bar 1, lead-in wire 4 is connected on packing ring 5, due to many invisible burrs and wedge angle on the terminals 6 of screw thread copper bar 1 and in its bottom edge, the field intensity of terminals 6 can be made like this to become concentrated, thus generation partial discharge, partial discharge can cause the damage of insulation gradually, impel ageing of insulation, even finally cause puncturing of whole insulation.
Summary of the invention
The object of the present invention is to provide a kind of capacitor voltage divider medium-voltage terminal pin configuration, which solve the screw thread on copper bar and the burr in bottom edge and wedge angle in prior art many, the problem that partial discharge quantity is large, prevent the damage of insulation and aging.
The object of the invention is to be achieved through the following technical solutions:
A kind of capacitor voltage divider medium-voltage terminal pin configuration, it comprises intermediate voltage terminal, described intermediate voltage terminal attached bag draws together the screw thread copper bar that Surface coating has insulating barrier, described screw thread copper bar is provided with the terminals be exposed to outside insulating barrier, wherein, on described terminals, cover has packing ring, described packing ring is fixedly clamped on screw thread copper bar by the first nut and copper ball shape block, described first nut is arranged at the inner side of terminals, the outside that described copper ball shape block is arranged at terminals is coated on outside terminals head, and described lead-in wire is fixed on packing ring.
Especially, described first nut is hexagonal brass nut.
Beneficial effect of the present invention is, copper ball shape block in described capacitor voltage divider medium-voltage terminal pin configuration is arranged at the outside of terminals, and the head of terminals is wrapped in copper ball shape block the inside, in screw thread on terminals copper bar and bottom edge, many burrs and wedge angle would not be outside exposed, again because the smooth surface of copper ball shape block, there is no burr and wedge angle, so, just avoid concentrating of terminals field intensity, reduce partial discharge quantity, and then prevent the damage of insulation and aging.
Accompanying drawing explanation
According to drawings and embodiments the present invention is described in further detail below.
Fig. 1 is the schematic diagram of traditional capacitor voltage divider medium-voltage terminal pin configuration;
Fig. 2 is the schematic diagram of capacitor voltage divider medium-voltage terminal pin configuration of the present invention.
In figure:
1, screw thread copper bar; 2, hexagonal brass nut; 3, copper ball shape block; 4, go between; 5, packing ring; 6, terminals; 7, insulating barrier.
Embodiment
Please refer to shown in Fig. 2, Fig. 2 is the schematic diagram of capacitor voltage divider medium-voltage terminal pin configuration of the present invention.In the present embodiment, described capacitor voltage divider medium-voltage terminal pin configuration, it comprises intermediate voltage terminal, described intermediate voltage terminal attached bag draws together the screw thread copper bar 1 that Surface coating has insulating barrier 7, screw thread copper bar 1 is provided with the terminals 6 be exposed to outside insulating barrier 7, on terminals 6, cover has packing ring 5, and packing ring 5 is fixedly clamped on screw thread copper bar 1 by hexagonal brass nut 2 and copper ball shape block 3, and the lead-in wire 4 of intermediate voltage terminal is connected on packing ring 5.
Described hexagonal brass nut 2 is arranged at the inner side of terminals 6, copper ball shape block 3 is arranged at the outside of terminals 6, and terminals 6 head is wrapped in the inside of copper ball shape block 3, avoid the screw thread on terminals 6 bronze medal bar and the burr in bottom edge and wedge angle and be exposed to outside, because the smooth surface of copper ball shape block 3, there is no burr and wedge angle, the field intensity that doing so avoids terminals 6 is concentrated, decrease partial discharge quantity, prevent the insulation harm because partial discharge causes and aging, extend the useful life of capacitor voltage divider.
Claims (1)
1. a capacitor voltage divider medium-voltage terminal pin configuration, it comprises intermediate voltage terminal, described intermediate voltage terminal attached bag draws together the screw thread copper bar that Surface coating has insulating barrier, described screw thread copper bar is provided with the terminals be exposed to outside insulating barrier, it is characterized in that: on described terminals, cover has packing ring, described packing ring is fixedly clamped on screw thread copper bar by the first nut and copper ball shape block, described first nut is arranged at the inner side of terminals, the outside that described copper ball shape block is arranged at terminals is coated on outside terminals head, described lead-in wire is connected on packing ring, described first nut is hexagonal brass nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110221482.XA CN102360879B (en) | 2011-08-03 | 2011-08-03 | A kind of capacitor voltage divider medium-voltage terminal pin configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110221482.XA CN102360879B (en) | 2011-08-03 | 2011-08-03 | A kind of capacitor voltage divider medium-voltage terminal pin configuration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102360879A CN102360879A (en) | 2012-02-22 |
| CN102360879B true CN102360879B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110221482.XA Active CN102360879B (en) | 2011-08-03 | 2011-08-03 | A kind of capacitor voltage divider medium-voltage terminal pin configuration |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915860A (en) * | 2010-07-22 | 2010-12-15 | 无锡市锡容电力电器有限公司 | Integrated output terminal structure of capacitive voltage divider |
| CN201838435U (en) * | 2010-10-28 | 2011-05-18 | 特变电工衡阳变压器有限公司 | Core locking device with draw string |
| CN202172006U (en) * | 2011-08-03 | 2012-03-21 | 无锡市锡容电力电器有限公司 | Lead structure of a capacitor voltage divider medium-voltage terminal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61201409A (en) * | 1985-03-04 | 1986-09-06 | Toshiba Corp | Assembly of gas insulated potential transformer |
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2011
- 2011-08-03 CN CN201110221482.XA patent/CN102360879B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915860A (en) * | 2010-07-22 | 2010-12-15 | 无锡市锡容电力电器有限公司 | Integrated output terminal structure of capacitive voltage divider |
| CN201838435U (en) * | 2010-10-28 | 2011-05-18 | 特变电工衡阳变压器有限公司 | Core locking device with draw string |
| CN202172006U (en) * | 2011-08-03 | 2012-03-21 | 无锡市锡容电力电器有限公司 | Lead structure of a capacitor voltage divider medium-voltage terminal |
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| Publication number | Publication date |
|---|---|
| CN102360879A (en) | 2012-02-22 |
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