CN102103922A - Improved high-voltage cable connector for underground transformer - Google Patents
Improved high-voltage cable connector for underground transformer Download PDFInfo
- Publication number
- CN102103922A CN102103922A CN200910266393XA CN200910266393A CN102103922A CN 102103922 A CN102103922 A CN 102103922A CN 200910266393X A CN200910266393X A CN 200910266393XA CN 200910266393 A CN200910266393 A CN 200910266393A CN 102103922 A CN102103922 A CN 102103922A
- Authority
- CN
- China
- Prior art keywords
- joint seat
- insulating
- high pressure
- insulating joint
- insulated enclosure
- 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.)
- Pending
Links
Images
Abstract
The invention discloses an improved high-voltage cable connector for an underground transformer. The connector consists of an insulating joint seat and an insulating seal cover, wherein a high-voltage static contact through hole is formed in the lower end face of the insulating joint seat; a high-voltage static contact rod is arranged in the high-voltage static contact through hole; the insulating seal cover is arranged on the upper end face of the insulating joint seat; a cable through hole is formed in the insulating seal cover; an upper screw cover is arranged at the upper end of the insulating seal cover and connected with the insulating seal cover; a lower screw cover is sleeved outside the insulating seal cover and connected with the insulating joint seat; a high-voltage dynamic contact insulating sleeve is arranged in the insulating joint seat; a high-voltage dynamic contact rod is arranged in the high-voltage dynamic contact insulating sleeve and connected with the high-voltage static contact rod by an electric connecting piece; and insulating liquid is filled between the insulating joint seat and the insulating seal cover. The upper screw cover, the insulating seal cover and the insulating joint seat are connected by threads and sealed by seal rings, and the insulating liquid improves internal insulating capability and balances pressure inside and outside a shell, so that a reliable seal is realized. The improved high-voltage cable connector is suitable for the underground transformer.
Description
Technical field
The present invention relates to electricity field, relate in particular to cable connector, the particularly cable connector of buried transformer, a kind of specifically improved buried transformer high-voltage cable connector.
Background technology
In the prior art, the cable connector that is used to connect transformer is made of middle and high pressure insulating sleeve and American cable joint, only be applicable to oil-immersed power transformer or composite type box type transformer, its shell protection grade does not reach the IP68 standard, so can not be used for buried transformer.
Summary of the invention
The object of the present invention is to provide a kind of improved buried transformer high-voltage cable connector, described this improved buried transformer high-voltage cable connector will solve in the prior art cable connector shell protection grade that connects transformer and not reach the IP68 standard, can not be used for buried transformer
Technical problem.
This improved buried transformer high-voltage cable connector of the present invention is made of insulating joint seat and insulated enclosure lid, wherein, described insulating joint seat is cartridge type, the upper end open of insulating joint seat, the lower end closed of insulating joint seat, be provided with three high pressure fixed contact through holes in the lower surface of insulating joint seat, be provided with a high pressure stationary contact head rod in any one described high pressure fixed contact through hole, the excircle of described insulated enclosure lid is provided with ring-type and protrudes step, described ring-type is protruded step and is arranged on the upper surface of insulating joint seat, ring-type is protruded the following insulated enclosure lid of step and is extended in the insulating joint seat, be provided with three cable through-holes in the insulated enclosure lid, all separate between any two described cable through-holes by insulation board, any one cable through-hole all is connected to the upper surface and the lower surface of insulated enclosure lid, the upper end of insulated enclosure lid is provided with one and goes up spiral cover, the described spiral cover of going up is connected with the insulated enclosure lid by screw thread, ring-type is protruded outside the above insulated enclosure lid of step and is arranged with a screwed lid, described screwed lid is connected by the outside of screw thread with the insulating joint seat, be provided with a high pressure moving contact insulating case in the insulating joint seat, be provided with three ducts in the described high pressure moving contact insulating case, the upper end in any one described duct all is communicated with a cable through-hole in the insulated enclosure lid separately, be provided with a high pressure movable contact rod in any one duct, the lower end of any one high pressure movable contact rod all is connected by the upper end of an electrical connector with the described high pressure stationary contact head rod of its below separately, any one described electrical connector all each free metal tube constitutes, the upper end of described metal tube is linked on the high pressure movable contact rod, the lower end of metal tube is linked on the high pressure stationary contact head rod, the upper and lower of metal tube excircle is arranged with the reinforcement jump ring respectively, the top and bottom of the tube wall of metal tube are provided with the crack to the extension of the middle part of metal tube respectively, are filled with dielectric between insulating joint seat and the insulated enclosure lid.
Further, the inwall of described metal tube is drum type.
Further, the surface of described high pressure movable contact rod, high pressure stationary contact head rod and metal tube all is coated with a silvering.
Further, the outside of described insulated enclosure lid is circular cone shape.
Further, described going up in the spiral cover is provided with central through hole, and described central through hole inboard is provided with sealing ring.
Further, be provided with sealing ring between insulated enclosure lid and the insulating joint seat.
Further, ring-type is protruded between step and the insulating joint seat and is provided with sealing ring.
Further, described going up between spiral cover and the insulated enclosure lid is provided with sealing ring.
Further, the outside of described insulating joint seat is cylinder.
The course of work of the present invention is: threephase cable enters in the insulating joint seat by the central through hole of last spiral cover and the cable through-hole in the insulated enclosure lid, in the duct of high pressure moving contact insulating case, be connected with the high pressure movable contact rod, high pressure stationary contact head rod is connected on the buried transformer, can realize being tightly connected of cable and buried transformer.
The present invention and prior art contrast, and its effect is actively with tangible.The present invention will go up spiral cover, insulated enclosure lid and the employing of insulating joint seat and be threaded, utilize the sealing ring sealing, utilize dielectric to improve built-in electrical insulation ability and balance shell inside and outside pressure, can realize positiver sealing, reach I P68 standard, be applicable to buried transformer.
Description of drawings:
Fig. 1 is the structural representation of a kind of improved buried transformer high-voltage cable connector of the present invention.
Embodiment:
As shown in Figure 1, a kind of improved buried transformer high-voltage cable connector of the present invention, constitute by insulating joint seat 7 and insulated enclosure lid 3, wherein, described insulating joint seat 7 is cartridge type, the upper end open of insulating joint seat 7, the lower end closed of insulating joint seat 7, be provided with three high pressure fixed contact through holes 13 in the lower surface of insulating joint seat 7, be provided with a high pressure stationary contact head rod (not shown) in any one described high pressure fixed contact through hole 13, the excircle of described insulated enclosure lid 3 is provided with ring-type and protrudes step, described ring-type is protruded step and is arranged on the upper surface of insulating joint seat 7, ring-type is protruded the following insulated enclosure lid 3 of step and is extended in the insulating joint seat 7, be provided with three cable through-holes in the insulated enclosure lid 3, all separate between any two described cable through-holes by insulation board, any one cable through-hole all is connected to the upper surface and the lower surface of insulated enclosure lid 3, the upper end of insulated enclosure lid 3 is provided with one and goes up spiral cover 11, the described spiral cover 11 of going up is connected with insulated enclosure lid 3 by screw thread, ring-type is protruded outside the above insulated enclosure lid 3 of step and is arranged with a screwed lid 4, described screwed lid 4 is connected by the outside of screw thread with insulating joint seat 7, be provided with a high pressure moving contact insulating case 6 in the insulating joint seat 7, be provided with three ducts in the described high pressure moving contact insulating case 6, the upper end in any one described duct all is communicated with the cable through-hole that insulated enclosure covers in 3 separately, be provided with a high pressure movable contact rod 8 in any one duct, the lower end 9 of any one high pressure movable contact rod 8 all is connected by the upper end of an electrical connector 12 with the described high pressure stationary contact head rod of its below separately, any one described electrical connector 12 all each free metal tube constitutes, the upper end of described metal tube is linked on the high pressure movable contact rod 8, the lower end of metal tube is linked on the high pressure stationary contact head rod, the upper and lower of metal tube excircle is arranged with respectively strengthens the jump ring (not shown), the top and bottom of the tube wall of metal tube are provided with the crack (not shown) to the extension of the middle part of metal tube respectively, are filled with the dielectric (not shown) between insulating joint seat 7 and the insulated enclosure lid 3.
Further, the inwall of described metal tube is drum type.
Further, the surface of described high pressure movable contact rod 8, high pressure stationary contact head rod and metal tube all is coated with a silvering.
Further, the outside of described insulated enclosure lid 3 is circular cone shape.
Further, described going up in the spiral cover 11 is provided with central through hole, and described central through hole inboard is provided with sealing ring 5.
Further, be provided with sealing ring 5 between insulated enclosure lid 3 and the insulating joint seat 7.
Further, ring-type is protruded between step and the insulating joint seat 7 and is provided with sealing ring 5.
Further, described going up between spiral cover 11 and the insulated enclosure lid 3 is provided with sealing ring 2.
Further, the outside of described insulating joint seat 7 is cylinder.
The course of work of the present invention is: threephase cable 10 enters in the insulating joint seat 7 by the central through hole of last spiral cover 11 and the cable through-hole in the insulated enclosure lid 3, wherein be connected with the upper end of high pressure movable contact rod 8 in the cable through-hole in cable 1 each comfortable high pressure movable contact headgear 6 of sub-thread, high pressure stationary contact head rod is connected on the buried transformer, and the lower end 9 of high pressure movable contact rod 8 realizes reliably being electrically connected by electrical connector 12 with high pressure stationary contact head rod.
Claims (9)
1. improved buried transformer high-voltage cable connector, constitute by insulating joint seat and insulated enclosure lid, it is characterized in that: described insulating joint seat is cartridge type, the upper end open of insulating joint seat, the lower end closed of insulating joint seat, be provided with three high pressure fixed contact through holes in the lower surface of insulating joint seat, be provided with a high pressure stationary contact head rod in any one described high pressure fixed contact through hole, the excircle of described insulated enclosure lid is provided with ring-type and protrudes step, described ring-type is protruded step and is arranged on the upper surface of insulating joint seat, ring-type is protruded the following insulated enclosure lid of step and is extended in the insulating joint seat, be provided with three cable through-holes in the insulated enclosure lid, all separate between any two described cable through-holes by insulation board, any one cable through-hole all is connected to the upper surface and the lower surface of insulated enclosure lid, the upper end of insulated enclosure lid is provided with one and goes up spiral cover, the described spiral cover of going up is connected with the insulated enclosure lid by screw thread, ring-type is protruded outside the above insulated enclosure lid of step and is arranged with a screwed lid, described screwed lid is connected by the outside of screw thread with the insulating joint seat, be provided with a high pressure moving contact insulating case in the insulating joint seat, be provided with three ducts in the described high pressure moving contact insulating case, the upper end in any one described duct all is communicated with a cable through-hole in the insulated enclosure lid separately, be provided with a high pressure movable contact rod in any one duct, the lower end of any one high pressure movable contact rod all is connected by the upper end of an electrical connector with the described high pressure stationary contact head rod of its below separately, any one described electrical connector all each free metal tube constitutes, the upper end of described metal tube is linked on the high pressure movable contact rod, the lower end of metal tube is linked on the high pressure stationary contact head rod, the upper and lower of metal tube excircle is arranged with the reinforcement jump ring respectively, the top and bottom of the tube wall of metal tube are provided with the crack to the extension of the middle part of metal tube respectively, are filled with dielectric between insulating joint seat and the insulated enclosure lid.
2. a kind of improved buried transformer high-voltage cable connector as claimed in claim 1, it is characterized in that: the inwall of described metal tube is drum type.
3. a kind of improved buried transformer high-voltage cable connector as claimed in claim 1, it is characterized in that: the surface of described high pressure movable contact rod, high pressure stationary contact head rod and metal tube all is coated with a silvering.
4. a kind of improved buried transformer high-voltage cable connector as claimed in claim 1 is characterized in that: the outside of described insulated enclosure lid is circular cone shape.
5. a kind of improved buried transformer high-voltage cable connector as claimed in claim 1 is characterized in that: described going up in the spiral cover is provided with central through hole, and described central through hole inboard is provided with sealing ring.
6. a kind of improved buried transformer high-voltage cable connector as claimed in claim 1 is characterized in that: be provided with sealing ring between insulated enclosure lid and the insulating joint seat.
7. a kind of improved buried transformer high-voltage cable connector as claimed in claim 1 is characterized in that: ring-type is protruded between step and the insulating joint seat and is provided with sealing ring.
8. a kind of improved buried transformer high-voltage cable connector as claimed in claim 1 is characterized in that: described going up between spiral cover and the insulated enclosure lid is provided with sealing ring.
9. a kind of improved buried transformer high-voltage cable connector as claimed in claim 1, it is characterized in that: the outside of described insulating joint seat is cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910266393XA CN102103922A (en) | 2009-12-18 | 2009-12-18 | Improved high-voltage cable connector for underground transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910266393XA CN102103922A (en) | 2009-12-18 | 2009-12-18 | Improved high-voltage cable connector for underground transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102103922A true CN102103922A (en) | 2011-06-22 |
Family
ID=44156620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910266393XA Pending CN102103922A (en) | 2009-12-18 | 2009-12-18 | Improved high-voltage cable connector for underground transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102103922A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427333A (en) * | 2011-10-25 | 2012-04-25 | 钦州华成自控设备有限公司 | Preamplifier of electrode |
| CN104217840A (en) * | 2014-09-09 | 2014-12-17 | 国家电网公司 | Cable sealing device of waterproof transformer |
| CN107017490A (en) * | 2017-06-14 | 2017-08-04 | 达诺尔电气(集团)有限公司 | A kind of 10KV transformers connector |
-
2009
- 2009-12-18 CN CN200910266393XA patent/CN102103922A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427333A (en) * | 2011-10-25 | 2012-04-25 | 钦州华成自控设备有限公司 | Preamplifier of electrode |
| CN104217840A (en) * | 2014-09-09 | 2014-12-17 | 国家电网公司 | Cable sealing device of waterproof transformer |
| CN107017490A (en) * | 2017-06-14 | 2017-08-04 | 达诺尔电气(集团)有限公司 | A kind of 10KV transformers connector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103366907A (en) | High-voltage wall bushing with conductive inserts and method for producing the wall bushing | |
| CN103532081B (en) | Stress cone and capacitive composite insulating high-voltage cable terminal for overhead line | |
| CN201075367Y (en) | High voltage fuse for ground-embedded type voltage transformer | |
| CN102103922A (en) | Improved high-voltage cable connector for underground transformer | |
| CN102623153B (en) | A kind of current transformer insulating sleeve | |
| CN203085335U (en) | Glue impregnated paper capacitance-type transformer bushing | |
| CN201927472U (en) | Voltage transformer with fuse for gas insulated cabinet | |
| CN202473442U (en) | Voltage equalizing shielding cylinder of porcelain bushing conductor | |
| CN201601462U (en) | Improved high tension cable connector for underground transformer | |
| CN107424799A (en) | gas-insulated transformer | |
| CN201549287U (en) | Thirty-five KV-level pure porcelain bushing | |
| CN102780196B (en) | A kind of dish-style bus casing | |
| CN204558218U (en) | A kind of SF6 vacuum on-load operation switch switch core insulation against ground structure | |
| CN201789206U (en) | High-voltage potential transformer cabinet | |
| CN201717083U (en) | Novel phase-electricity recognition cover-free double-sealing transformer porcelain sleeve | |
| CN105954661A (en) | Insulation test device of voltage transformer for high-voltage gas-insulated switchboard | |
| CN203644479U (en) | Supporting insulator | |
| CN201717518U (en) | Contact box with double-shielding structure | |
| CA2808786C (en) | High-voltage bushing for dc voltage | |
| CN201466555U (en) | Contact box for air-insulated metal-enclosed switchgear | |
| CN201601004U (en) | Fuse connecting seat for transformers | |
| CN104091737A (en) | High-voltage fuse sealing base for underground transformers | |
| CN201522911U (en) | High voltage transformer casing pipe for insulating conductors | |
| CN203859090U (en) | Oil-immersed high-voltage current limiting fuse with total range protection specially used for wind power transformation | |
| CN208507428U (en) | A kind of voltage transformer |
Legal Events
| 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: 20110622 |