CN202650824U - 35-kilovolt (KV) outdoor composite dry current transformer - Google Patents
35-kilovolt (KV) outdoor composite dry current transformer Download PDFInfo
- Publication number
- CN202650824U CN202650824U CN 201220314082 CN201220314082U CN202650824U CN 202650824 U CN202650824 U CN 202650824U CN 201220314082 CN201220314082 CN 201220314082 CN 201220314082 U CN201220314082 U CN 201220314082U CN 202650824 U CN202650824 U CN 202650824U
- Authority
- CN
- China
- Prior art keywords
- current transformer
- insulation protection
- winding
- external insulation
- insulation protective
- 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
Links
Abstract
Provided is a 35-kilovolt (KV) outdoor composite dry current transformer playing the role of electric power measurement and relay protection in an electric system. The 35KV outdoor composite dry current transformer is composed of a primary winding, a secondary winding, an inner insulation protection body, an outer insulation protection body and an installation base plate. The primary winding is formed by welding copper rods and copper bars, and the secondary winding is sleeved in the middle of the copper rods in coaxial mode. The primary winding and the secondary winding constitute a transformer body of the transformer. The inner insulation protection body composed of epoxy resin is poured in gaps and peripheries inside the transformer body, the outer insulation protection body is formed by pressing high-temperature vulcanization silicon rubber and bonded on the outer surface of the inner insulation protection body, and the installation base plate is communicated with the inner insulation protection body and the outer insulation protection body through bolts.
Description
Technical field
The utility model belongs to the high-voltage variable flow device in the outdoor electric system, does electric energy metrical and relaying protection and use in the 35kV electric power system.
Background technology
At present, along with each high-power station's capacity-increasing transformation project is on the increase, the electrical network transmission capacity constantly increases, the outdoor ordinary electric current mutual-inductor of electric power system 35kV level can not satisfy the increasing demand of current power network line electric current, common current transformer, can only make the product of little electric current, the Short Circuit withstand impact capacity is poor, and the scope of application is restricted.
Summary of the invention
The purpose of this utility model is to provide the outdoor composite dry current transformer of a kind of 35kV, and it not only can make the product of large electric current, and the Short Circuit withstand impact capacity is strong, and anti-soil is effective, and insulation level is high.
The technical scheme that its technical problem that solves the utility model adopts is: it is by a winding; secondary winding; interior insulating protector; the external insulation protective; mounting base forms; it is characterized in that a winding is formed by copper rod and welding copper bus; secondary winding is sleeved on the center position of copper rod; be coaxial distribution; secondary winding is made of secondary coil and the annular iron core that is surrounded by insulating barrier; a winding; secondary winding consists of the device body of instrument transformer; gap in the device body and periphery are cast with the interior insulating protector that is made of epoxy resin; the external insulation protective adopts high-temperature silicon disulfide rubber compressing; be bonded in the outer surface of interior insulating protector, mounting base with in; the external insulation protective is bolted.
The purpose of this utility model also can further realize by following technical proposals.
The middle and upper part of external insulation protective is eight groups of circular full skirts that size is alternate.
The bottom of external insulation protective is provided with a square terminal box, and the outlet terminal of secondary coil all concentrates in the terminal box.
The beneficial effects of the utility model are: can be used for producing large current product; in addition; one time winding is made of copper rod and copper bar; the cross section is large; the Short Circuit withstand impact capacity is strong; in the situation that network fluctuation is larger; do not cause damage of product; external insulation protective middle and upper part appropriate design becomes eight groups of circular full skirts that size is alternate; creepage ratio surpasses the required value 31mm/kV of national standard IV pollution severity grade apart from reaching 35mm/kV, and anti-soil is effective; insulation level is high, out of doors heavy pollution or highlands safe operation.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is front view of the present utility model.
Fig. 2 is left view of the present utility model.
1. full skirts among the figure, 2. interior insulating protector, 3. copper bar, 4. secondary coil, 5. insulating barrier, 6. iron core, 7. copper rod, 8. external insulation protective, 9. terminal box, 10. mounting base, 11. outlet terminals, 12. bolts.
Embodiment
At Fig. 1; in embodiment illustrated in fig. 2; one time winding is welded by copper rod (7) and copper bar (3); secondary winding is sleeved on the center position of copper rod (7); be coaxial distribution; secondary winding is made of secondary coil (4) and the annular iron core (6) that is surrounded by insulating barrier (5); a winding; secondary winding consists of the device body of instrument transformer; gap in the device body and periphery are cast with the interior insulating protector (2) that is made of epoxy resin; external insulation protective (8) adopts high-temperature silicon disulfide rubber compressing; be bonded in the outer surface of interior insulating protector (2), mounting base (10) and interior insulating protector (2); external insulation protective (8) connects by bolt (12).
The middle and upper part of external insulation protective (8) is eight groups of circular full skirts (1) that size is alternate.
The bottom of external insulation protective (8) is provided with a square terminal box (9), and the outlet terminal of secondary coil (11) all concentrates in the terminal box (9).
Claims (3)
- The outdoor composite dry current transformer of a 35kV it by a winding; secondary winding; interior insulating protector; the external insulation protective; mounting base forms; it is characterized in that: one time winding is formed by copper rod and welding copper bus; secondary winding is sleeved on the center position of copper rod; be coaxial distribution; a winding; secondary winding consists of the device body of instrument transformer; gap in the device body and periphery are cast with the interior insulating protector that is made of epoxy resin; the external insulation protective adopts high-temperature silicon disulfide rubber compressing; be bonded in the outer surface of interior insulating protector, mounting base with in; the external insulation protective is bolted.
- 2. the outdoor composite dry current transformer of 35kV according to claim 1, it is characterized in that: the middle and upper part of described external insulation protective is eight groups of circular full skirts that size is alternate.
- 3. the outdoor composite dry current transformer of 35kV according to claim 1, it is characterized in that: the bottom of described external insulation protective is provided with a square terminal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220314082 CN202650824U (en) | 2012-06-21 | 2012-06-21 | 35-kilovolt (KV) outdoor composite dry current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220314082 CN202650824U (en) | 2012-06-21 | 2012-06-21 | 35-kilovolt (KV) outdoor composite dry current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650824U true CN202650824U (en) | 2013-01-02 |
Family
ID=47419891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220314082 Expired - Fee Related CN202650824U (en) | 2012-06-21 | 2012-06-21 | 35-kilovolt (KV) outdoor composite dry current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403141A (en) * | 2020-03-29 | 2020-07-10 | 雷兹互感器（上海）有限公司 | Voltage transformer with high IP protection level for gas insulated high-voltage switch cabinet |
-
2012
- 2012-06-21 CN CN 201220314082 patent/CN202650824U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403141A (en) * | 2020-03-29 | 2020-07-10 | 雷兹互感器（上海）有限公司 | Voltage transformer with high IP protection level for gas insulated high-voltage switch cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201936725U (en) | Fully-insulated amorphous alloy iron core dry type transformer for mine explosion-proof mobile substation | |
| CN202502937U (en) | Vacuum switch module for ring network unit | |
| CN201812665U (en) | Anti-resonance three-phase voltage transformer | |
| CN201576567U (en) | Assembled shunt capacitor device | |
| CN202650824U (en) | 35-kilovolt (KV) outdoor composite dry current transformer | |
| CN202534494U (en) | Outdoor voltage transformer with fuse protector | |
| CN203179662U (en) | Dry type transformer | |
| CN103456491B (en) | Novel parallel capacitor for restraining switching surge of vacuum circuit breaker | |
| CN202134390U (en) | Voltage transformer used in railway traction substation | |
| CN204497636U (en) | A kind of built on stilts inlet wire China used for wind power generation formula case becomes | |
| CN204760203U (en) | Dry -type on -load voltage -regulating transformer with wiring copper bar | |
| CN203367012U (en) | Novel parallel capacitor for suppressing switching overvoltage of vacuum circuit breaker | |
| CN206323061U (en) | A kind of nitrogen gas insulating ring main unit | |
| CN202308894U (en) | Gauge cabinet | |
| CN204558227U (en) | A kind of outdoor vacuum switch power transformer | |
| CN201307502Y (en) | Epoxy resin dry-type rectiformer with 35 kilovolt | |
| CN201149958Y (en) | Contact box | |
| CN204130434U (en) | A kind of high-voltage alternating-current vacuum circuit breaker on outdoor column | |
| CN207765294U (en) | 110kV resin casting dry-type transformers | |
| CN204088031U (en) | High-tension switch cabinet power transformer | |
| CN203589593U (en) | Connection-disconnection indication apparatus for 10-kV power supply line | |
| CN211045248U (en) | Special high-inflection-point, large-capacity and small-partial-discharge voltage transformer for state network | |
| CN202977146U (en) | Single-phase superhigh-voltage large-capacity off-circuit-regulation alternating current step-up transformer | |
| CN104299839B (en) | A kind of high-voltage alternating-current vacuum circuit breaker on outdoor column | |
| CN107946048A (en) | 110kV resin casting dry-type transformers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20200621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |