CN2578947Y - Highland style current inducer with contacts box - Google Patents
Highland style current inducer with contacts box Download PDFInfo
- Publication number
- CN2578947Y CN2578947Y CN 02248925 CN02248925U CN2578947Y CN 2578947 Y CN2578947 Y CN 2578947Y CN 02248925 CN02248925 CN 02248925 CN 02248925 U CN02248925 U CN 02248925U CN 2578947 Y CN2578947 Y CN 2578947Y
- Authority
- CN
- China
- Prior art keywords
- contact
- contact box
- equipotential
- bowl
- current mutual
- 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
Images
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to a current mutual inductance device with a contact box, which comprises a current mutual inductor (1), a static contact (2) and a contact box (3), wherein, the current mutual inductor (1) and the contact box (3) are poured into integration by epoxy resin; the static contact (2), an insulation barrier cylinder (4) and an equipotential bowl (5) are arranged on the coaxial line on one end of the contact box (3) from inside to outside in sequence the contact box (3), the equipotential bowl (5) and the insulation barrier cylinder (4) are poured into integration by the epoxy resin; the static contact (2) is electrically connected with the equipotential bowl (5). The device is suitable for various handcart switch cabinets indoors; the utility model is used for measuring electric quantity and electric energy and protecting relays in a power system with 50Hz rated frequency and 35KV rated voltage; when the utility model is used in plateau areas with the height of 3000 meters or less than 3000 meters, no corona generates around the static contact.
Description
Affiliated technical field
The utility model relates to a kind of electric current mutual inductance device, in particular for the band contact box electric current mutual inductance device of height above sea level highlands below 3000 meters.
Background technology
The current transformer that uses in the existing handcart switch cabinet has two kinds of basic structure types, a kind of be the fixed installation formula--with major loop between be connected with bus, its advantage of the current transformer of this structure has dynamic and thermal stability multiple height, good insulation preformance, shortcoming is that volume is big, heavy, poor safety performance, installs and uses inconvenience.Another kind of structure is that current transformer and contact box are integral with poured with epoxy resin, and its advantage is conserve space, compactness, and its shortcoming is under altitude environment, produces corona around the fixed contact in the contact box.
Summary of the invention
The purpose of this utility model provides a kind of plateau type band contact box electric current mutual inductance device, this device is not only under the altitude environment condition, corona free around the fixed contact in the contact box of little spatial volume, and realized instrument transformer high insulation resistance, low partial discharge, high accuracy and miniaturization.
The purpose of this utility model is achieved in that a kind of plateau type band contact box electric current mutual inductance device, comprise current transformer, contact box and fixed contact, described current transformer and contact box poured with epoxy resin are one, be provided with fixed contact, insulation barrier tube, equipotential bowl from inside to outside successively on the end coaxial line in the described contact box, described contact box, equipotential bowl and insulation barrier tube poured with epoxy resin are one, and described equipotential bowl is electrically connected with fixed contact.
Described fixed contact is the grafting of primary circuit and the element that cut-offs.
Described insulation barrier tube is the insulation of epoxy resin integral moulding by casting, inwall, and it is the electric field between fixed contact and shell body evenly, improves insulating capacity, the creepage distance of increase fixed contact and mounting flange.
Described equipotential bowl can be guided to high potential of fixed contact in the insulation barrier tube, thereby forms an equipotential space around fixed contact, has overcome the corona discharge phenomenon of fixed contact.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is vertical partial sectional view of the present utility model.
Among the figure, 1. current transformer, 2. fixed contact, 3. contact box, 4. insulation barrier tube, 5. equipotential bowl.
Embodiment
As shown in Figure 1, a kind of plateau type band contact box electric current mutual inductance device comprises current transformer 1, fixed contact 2, contact box 3, insulation barrier tube 4, equipotential bowl 5, and described contact box 3 is an one with current transformer 1 usefulness poured with epoxy resin; Be provided with fixed contact 2, insulation barrier tube 4, equipotential bowl 5 from inside to outside successively on the described contact box 3 one end coaxial lines, described contact box 3, equipotential bowl 5, insulation barrier tube 4 usefulness poured with epoxy resin are one, and described fixed contact 2 places contact box 3 and is electrically connected.Described fixed contact 2 is the grafting of primary circuit and the element that cut-offs.Described insulation barrier tube 4 is the insulation of epoxy resin integral moulding by casting, inwall, and it is the electric field between fixed contact and shell evenly, improves the insulating capacity between fixed contact 2 and shell body, increases the creepage distance of fixed contact 2 and mounting flange.Described equipotential bowl 5 can be guided to a high potential in the insulation barrier tube 4, thereby forms an equipotential space around fixed contact 2, has overcome the corona discharge phenomenon of fixed contact 2.
The utility model is to adopt the totally-enclosed insulation of epoxy resin; applicable to height above sea level 3000m and following highlands; being suitable for indoor various handcart switch cabinet, is that 50Hz, rated voltage are to make electric weight, electric energy measurement and used for relay protection in 35Kv and the following electric power system in rated frequency.
Claims (4)
1. plateau type band contact box electric current mutual inductance device, comprise current transformer (1), fixed contact (2), contact box (3), described current transformer (1) is integral with poured with epoxy resin with contact box (3), it is characterized in that: be provided with fixed contact (2), insulation barrier tube (4), equipotential bowl (5) from inside to outside successively on described contact box (3) the one end coaxial lines, described contact box (3), equipotential bowl (5) and insulation barrier tube (4) are one with poured with epoxy resin, and described fixed contact (2) is electrically connected with equipotential bowl (5).
2. plateau type band contact box electric current mutual inductance device according to claim 1, it is characterized in that: described fixed contact (2) is arranged in equipotential bowl (5).
3. plateau type band contact box electric current mutual inductance device according to claim 1 and 2, it is characterized in that: described fixed contact (2) is for the grafting of primary circuit and cut-off element.
4. plateau type band contact box electric current mutual inductance device according to claim 1 is characterized in that: described insulation barrier tube (4) is to be formed by the epoxy resin integral cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02248925 CN2578947Y (en) | 2002-10-28 | 2002-10-28 | Highland style current inducer with contacts box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02248925 CN2578947Y (en) | 2002-10-28 | 2002-10-28 | Highland style current inducer with contacts box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2578947Y true CN2578947Y (en) | 2003-10-08 |
Family
ID=33719462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02248925 Expired - Fee Related CN2578947Y (en) | 2002-10-28 | 2002-10-28 | Highland style current inducer with contacts box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2578947Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636677A (en) * | 2012-04-01 | 2012-08-15 | 江苏波瑞电气有限公司 | Intelligent type online real-time monitoring contact box for temperature, humidity and current |
| CN103022926A (en) * | 2012-11-30 | 2013-04-03 | 广东天富电气集团有限公司 | Box type fixing type metal-enclosed switchgear |
-
2002
- 2002-10-28 CN CN 02248925 patent/CN2578947Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636677A (en) * | 2012-04-01 | 2012-08-15 | 江苏波瑞电气有限公司 | Intelligent type online real-time monitoring contact box for temperature, humidity and current |
| CN103022926A (en) * | 2012-11-30 | 2013-04-03 | 广东天富电气集团有限公司 | Box type fixing type metal-enclosed switchgear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111863508A (en) | One-time and two-time depth integrated circuit breaker on connection column | |
| CN113793773A (en) | Solid-sealed polar pole and vacuum recloser | |
| CN202502890U (en) | Indoor cabled voltage transformer for electric locomotive | |
| CN2578947Y (en) | Highland style current inducer with contacts box | |
| CN101308725B (en) | Dry-type voltage inductor for metering cart user | |
| CN206907622U (en) | The element outdoor composite insulation combination transformer of three-phase three | |
| CN216698013U (en) | Dry electromagnetic current mutual inductor | |
| CN201036161Y (en) | Three-phase pouring type combined transformer | |
| CN201252000Y (en) | Fully-closed multi-winding current transformer | |
| CN201336218Y (en) | Voltage-current combined type transformer for high pressure measurement | |
| CN2369250Y (en) | Dry all sealed high voltage electric power meter | |
| CN204441177U (en) | 12kV intelligent electricity anti-theft vacuum circuit-breaker | |
| CN201489989U (en) | Multi-purpose totally closed voltage transformer | |
| CN207800341U (en) | A kind of band busbar wall-penetrating type current transformer | |
| CN201549359U (en) | Fully-closed low voltage dry-type voltage transformer | |
| CN2929927Y (en) | Transformer integrated outdoor dry type totally-enclosed three-phase current transformer | |
| CN206460864U (en) | A kind of current transformer | |
| CN201035064Y (en) | Through wall type totally enclosed current mutual inductor | |
| CN2622824Y (en) | Dry current transformer | |
| CN215770824U (en) | Current transformer of high-voltage primary electric insulation structure | |
| CN201036149Y (en) | Outdoor compound insulation current mutual inductor | |
| CN211428651U (en) | Integrated electric device of 10KV plug-in cable plug | |
| CN2754195Y (en) | Outdoor high-voltage combined mutual inductor | |
| CN220604564U (en) | Circuit breaker on degree of depth fuses post | |
| CN111354538A (en) | Current transformer for solid cabinet |
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 |