CN202816638U - Voltage transformer for negative control terminal power - Google Patents
Voltage transformer for negative control terminal power Download PDFInfo
- Publication number
- CN202816638U CN202816638U CN 201220494554 CN201220494554U CN202816638U CN 202816638 U CN202816638 U CN 202816638U CN 201220494554 CN201220494554 CN 201220494554 CN 201220494554 U CN201220494554 U CN 201220494554U CN 202816638 U CN202816638 U CN 202816638U
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- CN
- China
- Prior art keywords
- negative control
- control terminal
- fuse
- voltage transformer
- winding
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to electrical power system high voltage measurement or relaying protection equipment, in particular to a voltage transformer for negative control terminal power. A secondary winding and a primary winding are concentric and are winded on an insulative frame and are sleeved on an iron core; the primary winding is connected with two primary fuses and the two primary fuses are respectively sealed on a fuse insulating cylinder and the secondary winding is connected with secondary connection terminals. The iron core, the first winding, the secondary winding, the first fuse, the fuse insulating cylinder and the secondary connection terminals are poured into an integrated structure through epoxy resin vacuum and are mounted on a mounting bottom plate. Two primary lead insulated cables are fixed and sealed at the tail end of the fuse insulating cylinder in the integrated structure. The electrical power system high voltage measurement or relaying protection equipment has the advantages of being low in capacity, flexible in mounting, convenient to wire, insulative and reliable and with the fuse protection standardization and anti-theft.
Description
Technical field
The utility model relates to electric power system high-tension measurement or relay protection device, specifically a kind of negative control terminal power supply voltage transformer.
Background technology
Power load control equipment is that power department is according to the supply of electric power situation, electricity consumption period and load index to power consumer are carried out overall arrangement, and the AS measure of adopting technological means to manage, accomplish ordered electric, realize the functions such as load prediction, load control, field monitoring, information issue, raising power consumption efficiency.Along with China's power industry managerial skills improve constantly, national each province and city electrical network has all been installed electric load control and management terminal for the larger user of power load.For guaranteeing the function of system and device, negative control device terminal is in the charging operation state for a long time, and its used power supply sometimes adopts and obtains in the voltage transformer arbitrarily in the supporting switch cubicle, in the daily utilization process, the certain user is in order conveniently to control oneself or to escape the behaviors such as the electricity charge, by changing power supply wiring or adopting other means deliberately to disturb the normal operation of negative control terminal, bring very large puzzlement for the orderly management of power department, therefore, as electric administrative department, effectively move in order to improve Load Control Management System, reduce maintenance and management cost and difficulty, a kind of negative control terminal power supply tailored version voltage transformer of special use need to be provided especially.
The utility model content
, supply voltage instrument transformer sky affects the normal problem of using of whole system because being prone to the change wiring in order to solve the negative control terminal system; change the phenomenons such as supply voltage instrument transformer model disunity, wiring disunity, easily thread-changing, maintenance management complexity; the utility model provides a kind of negative control terminal power supply voltage transformer, and the volume that adopts the epoxide resin vacuum cast to form is little, flexible for installation, easy-to-connect, insulation are reliable, the protection of band fuse, standardization, thief-proof changing.
The technical scheme that the utility model adopts for achieving the above object is: a kind of negative control terminal power supply voltage transformer, and secondary winding is concentric on an insulation framework with a winding, and is sleeved on the iron core; One time winding connects two fuses, and two fuses are encapsulated in respectively fuse insulating cylinder outward, secondary winding connecting secondary binding post; Iron core, winding, secondary winding, fuse, fuse insulating cylinder, a secondary wiring terminals are cast for integral structure by epoxide resin vacuum, be installed on the mounting base, it is characterized in that the fuse insulating cylinder that two lead wire insulation cables are enclosed in the integral structure admittedly is terminal.
Described two fuse insulating cylinders are positioned at integral structure top, are to be horizontally disposed with.
The mid portion of described each fuse insulating cylinder is the square shape, and two ends are cylindrical shape.
The head end of described each fuse insulating cylinder passes through the swivel nut bolted, and passes through the rubber-covered sheath with fuse insulating cylinder and swivel nut bolt seal.
Being provided with the cross section between described two fuse insulating cylinders is trapezoidal insulation full skirt.
Described secondary wiring terminals is positioned at the side lower part of integral structure, and the secondary connection cover is stamped in the outside.
Described secondary connection cover is the transparent body, and is fastening by two screw specials with lead seal hole.
The utlity model has following advantage:
1, standardization, thief-proof changing: secondary wiring mode of this novel product can prevent effectively that the user from changeing the change wiring in use procedure, normally use and affect the negative control terminal device, improve the reliability and stability of power supply management, and standardization of products coefficient is very high, go in the negative control appliance arrangement of arbitrary form, save the improvement and design cost;
2, little, flexible for installation, the easy-to-connect of volume: optimizing structure design, the employing insulated cable that once goes between admittedly seals and fuse apparatus is the integral type structure, and product structure is compacter, can adopt any-mode to install flexibly, and primary connection is very convenient;
3, reliable, the band fuse protection of insulation: integral body adopts poured with epoxy resin to solidify and forms; and once lead-in wire adopts the insulated cable form; product insulation is very reliable, and adopts and install the fuse defencive function additional, can not burn problem when guaranteeing the product systems fault.
Description of drawings
Fig. 1 is the utility model external structure front view;
Fig. 2 is the utility model external structure end view;
Fig. 3 is the utility model internal structure schematic diagram.
Among the figure: 1, iron core; 2, winding; 3, secondary winding; 4, fuse; 5, fuse insulating cylinder; 6, secondary wiring terminals; 7, mounting base; 8, lead wire insulation cable; 9, swivel nut bolt; 10, rubber-covered sheath; 11, insulation full skirt; 12, secondary connection cover; 13, screw special.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
As Figure 1-3, secondary winding 3 and winding 2 are concentric to be contained on iron core 1 post around an insulation framework upper rear set, through being fixed in the casting mold after insulation and the buffering wrapping, connect again a winding 2 and a lead wire insulation cable 8 and connect inserts with fuse, connect secondary connection, adjust insulation distance, adopt the epoxide resin vacuum cast cured explosive to form, last integral installation is on a mounting base 7; Become: two lead wire insulation cables 8 are enclosed in fuse insulating cylinder 5 ends admittedly, have enough mechanical strengths thereupon, once go between as voltage transformer and use by dress, and prevent from changeing change to once going between in user's use procedure; Two fuse insulating cylinders 5 are positioned at integral structure top and are and are horizontally disposed with, and are shaped as the square bodily form in the middle of it, and two ends are cylindrical shape, and structure is compacter; Fuse insulating cylinder 5 head ends adopt 9 fastening rear rubber-covered sheath 10 sealings of using of swivel nut bolt, are that fuse changes the position, and guarantee that the insulated enclosure of utilization process is reliable; Being provided with the cross section between two fuse insulating cylinders 5 in integral structure top is trapezoidal insulation full skirt 11, has effectively increased the alternate surface creepage distance of product; Secondary wiring terminals 6 is positioned at the integral structure side lower part, secondary connection cover 12 is transparent material, adopt two screw specials 13 with lead seal hole fastening, equipment installs and can install the lead sealing processing additional, prevents from user's use procedure secondary lead wires being changed change.
When product is installed and used, the product that utilizes first mounting base 7 will install fuse is fixedly mounted in the High-voltage Incoming Cabinet of design of negative control terminal device, then a lead wire insulation cable 8 with the complete connecting ear of end crimping connects with the high-voltage busbar in the incoming line cabinet is electric, carrying out at last the secondary line cable is connected with the negative control terminal relevant apparatus, and install 12 rear screw special 13 lead sealings of secondary connection cover additional, assembly work is finished.
Claims (7)
1. negative control terminal power supply voltage transformer, secondary winding (3) is concentric on an insulation framework with a winding (2), and is sleeved on the iron core (1); A winding (2) connects two fuses (4), the outer fuse insulating cylinder (5), secondary winding (3) connecting secondary binding post (6) of being encapsulated in respectively of two fuses (4); Iron core (1), a winding (2), secondary winding (3), a fuse (4), fuse insulating cylinder (5), secondary wiring terminals (6) are cast for integral structure by epoxide resin vacuum, be installed on the mounting base (7), it is characterized in that two lead wire insulation cables (8) are enclosed in fuse insulating cylinder (5) end in the integral structure admittedly.
2. negative control terminal power supply voltage transformer according to claim 1 is characterized in that, described two fuse insulating cylinders (5) are positioned at integral structure top, is to be horizontally disposed with.
3. negative control terminal power supply voltage transformer according to claim 1 and 2 is characterized in that, the mid portion of described each fuse insulating cylinder (5) is the square shape, and two ends are cylindrical shape.
4. negative control terminal power supply voltage transformer according to claim 1, it is characterized in that, the head end of described each fuse insulating cylinder (5) is fastening by swivel nut bolt (9), and by rubber-covered sheath (10) fuse insulating cylinder (5) and swivel nut bolt (9) is sealed.
5. negative control terminal power supply voltage transformer according to claim 1 is characterized in that, being provided with the cross section between described two fuse insulating cylinders (5) is trapezoidal insulation full skirt (11).
6. negative control terminal power supply voltage transformer according to claim 1 is characterized in that, described secondary wiring terminals (6) is positioned at the side lower part of integral structure, and secondary connection cover (12) is stamped in the outside.
7. negative control terminal power supply voltage transformer according to claim 6 is characterized in that, described secondary connection cover (12) is the transparent body, and is fastening by two screw specials with lead seal hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494554 CN202816638U (en) | 2012-09-26 | 2012-09-26 | Voltage transformer for negative control terminal power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494554 CN202816638U (en) | 2012-09-26 | 2012-09-26 | Voltage transformer for negative control terminal power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816638U true CN202816638U (en) | 2013-03-20 |
Family
ID=47875483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220494554 Expired - Fee Related CN202816638U (en) | 2012-09-26 | 2012-09-26 | Voltage transformer for negative control terminal power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295752A (en) * | 2013-06-04 | 2013-09-11 | 衡阳一互电气有限公司 | Voltage transformer with fuse protection function used in C-GIS (cubicle gas insulated switchgear) of rail transit |
-
2012
- 2012-09-26 CN CN 201220494554 patent/CN202816638U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295752A (en) * | 2013-06-04 | 2013-09-11 | 衡阳一互电气有限公司 | Voltage transformer with fuse protection function used in C-GIS (cubicle gas insulated switchgear) of rail transit |
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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: 20130320 Termination date: 20200926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |