CN202258751U - Three-phase contact-finger type voltage transformer for handcart - Google Patents
Three-phase contact-finger type voltage transformer for handcart Download PDFInfo
- Publication number
- CN202258751U CN202258751U CN2011202967393U CN201120296739U CN202258751U CN 202258751 U CN202258751 U CN 202258751U CN 2011202967393 U CN2011202967393 U CN 2011202967393U CN 201120296739 U CN201120296739 U CN 201120296739U CN 202258751 U CN202258751 U CN 202258751U
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- Prior art keywords
- phase
- voltage transformer
- type voltage
- finger
- contact type
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Abstract
The utility model relates to a high voltage measurement or relay protection equipment for an electric system, in particular to a three-phase contact-finger type voltage transformer for a handcart. For the voltage transformer, an iron core, a primary winding, a second winding, a primary fuse, three phase insulation cylinders and a secondary wire holder are cured into an integrated structure by vacuum pouring through epoxy resign; the integrated structure is mounted on an installation baseboard; the three-phase insulation cylinders for sealing the primary fuse are cylinder shapes which are horizontally arranged at equal distances and have same shapes; three primary wiring terminals are in the form of contact finger devices; an A-phase pouring body is used for sealing an A-phase coil device body; and a C-phase pouring body is used for sealing a C-phase coil device body. The voltage transformer is small in volume, reasonable in structure, convenient to mount, easy to maintain, stable in insulation, and safe to operate.
Description
Technical field
The utility model relates to electric power system high-tension measurement or relay protection device, and specifically a kind of handcart is with three-phase finger-contact type voltage transformer.
Background technology
Voltage transformer is the equipment of measuring voltage, electric energy in electric power system or the electric control system; Convenient in order to realize switch cubicle miniaturization and repair and maintenance; Usually adopt the design form of voltage transformer handcart; Existing voltage transformer handcart form is: be made up of chassis, single-phase potential transformer, insulation column, external fuse, contact arm, Mume flower contact etc., have problems such as assembly is more, installation is complicated, maintenance is cumbersome, qualifying point is many, cost is high, insulation is unreliable.
The utility model content
The purpose of the utility model is to the problems referred to above that exist in the prior art, provide a kind of adopt that the epoxide resin vacuum cast forms, volume is little, rational in infrastructure, flexible for installation, easy care, the reliable novel voltage mutual inductor handcart of insulation are used threephase potential transformer.
The utility model for realizing the technical scheme that above-mentioned purpose adopted is: a kind of handcart is with three-phase finger-contact type voltage transformer; Adopt epoxy resin that iron core, winding, secondary winding, fuse, three phase isolated tube, the vacuum pouring of secondary connection seat are cured as integral structure; Integral installation is in installing on the base plate; The three phase isolated tube that envelope is put a fuse is the identical drum of shape of horizontal disposed at equal distance; Three primary connection terminals are the trigger installation form, and A phase pour mass envelope is put A phase coil device body, and C phase pour mass envelope is put C phase coil device body.
The primary connection terminal is the trigger installation form with compression function.The trigger installation of primary connection terminal adopts the front end that is bolted to the three phase isolated tube.Three phase isolated tube and instrument transformer coupling part are cuboid, terminal cylindrical shape.The three phase isolated tube comprises A phase insulating cylinder, B phase insulating cylinder and C insulating cylinder mutually.Be provided with vertical full skirt between A phase insulating cylinder and the B phase insulating cylinder, be provided with vertical full skirt between B phase insulating cylinder and the C phase insulating cylinder.The back of three phase isolated tube is provided with vertical back insulating barrier, and the side is provided with vertical side insulating barrier.Base plate is installed is provided with circular through hole.A phase pour mass is identical with the body shape of C phase pour mass.Two secondary connection seats are positioned to be installed on the base plate, and A phase pour mass and C be the place ahead of pour mass mutually.
This three-phase finger-contact type voltage transformer just in line with brief, insulation is reliable, the design concept of handling safety, easy care, economy, the new generation product of designing and developing for the supporting voltage transformer handcart of the withdraw type metal enclosed switch in novel interval.
The beneficial effect of the utility model is embodied in:
1. volume is little, rational in infrastructure: optimized Structure Design, and trigger installation and fuse insulating cylinder are integral structure, product structure compact volume more is little; Various functions such as the protection of product collection fuse, contact arm, fingertip electric installation are one, are applicable to the supporting use of novel voltage mutual inductor handcart more;
2. easy for installation, be easy to safeguard: when product is installed and used, only need instrument transformer is installed in the handcart according to phase sequence and get final product, do not need to install additional especially other various electric fittings, the installation time of effectively having saved handcart; Simpler during the product maintenance, do not need special maintenance work;
3. stable, the handling safety of insulation: adopt that epoxide resin material is integrated poured to form, insulation is reliable, has saved electric connecting part on the high side, has effectively avoided a lot of hidden danger of quality from designing, and guarantees the handcart operation safe.
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 external structure vertical view;
Fig. 4 is the utility model internal structure sketch map.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
Shown in Fig. 1-4; Secondary winding 3 adopts special-purpose spooling equipment concentric on iron core 1 stem of an annular with a winding 2, and the colligation of winding line end at 2 whole story difference is the terminal special-purpose conducting rod of embedded nut that is, forms A, C phase coil device body respectively after process insulation and buffering are wrapped up; Utilize embedded nut and core clamping etc. that coil device body is fixed in the casting mold through after the vacuumize; Connect a winding again and connect inserts, connect secondary connection, the adjustment insulation distance with fuse; Adopt the epoxide resin vacuum cast cured explosive to form, last integral installation is installed on the base plate 7 in one.
The three phase isolated tube 5 that envelope is put a fuse 4 is the identical drum of shape of horizontal disposed at equal distance; Front end is the interim form of cuboid for the cylindrical shape rear end; Not only use as the installation insulation of fuse; Guaranteeing has uniform electric field around it, and is the main insulation transition piece of a trigger installation, has enough mechanical strengths.Three primary connection terminals 8 are a kind of having any different in the primary conductive connected mode of Mume flower contact for to have the trigger installation form of compression function, and realization electrically contacts with switch cubicle high pressure busbar flexibly.The trigger installation of primary connection terminal 8 adopts bolt thread 9 modes to be fixed on the front end of three phase isolated tube 5, guarantees effective electric contact the with a high-tension fuse, and guarantees that integral body has enough mechanical strengths.Be respectively arranged with vertical full skirt 10 between the three phase isolated tube 5; The back is provided with vertical back insulating barrier 11; The side is provided with vertical side insulating barrier 12, further improves alternate electric insulation distance and insulation distance relatively, improves the insulating products level.Envelope is put the A phase pour mass 13 of A phase coil device body, and envelope is put the C phase pour mass 14 of C phase coil device body, and its two parts body shape is identical; Effectively utilize the design of poured with epoxy resin insulating material, product structure is compact more, and two secondary connection seats 6 adopt the cast of resin one to form; Be positioned at bottom, the place ahead; And the installation base plate 7 of B phase insulating cylinder 5b below is provided with circular through hole 15, and the secondary connection of the handcart during convenient the use arranges, and fixedly the drawing of secondary lead wires cable.When product uses; Elder generation packs fuse in the fuse three phase isolated tube 5; To assemble then the fat device that touches utilize bolt thread to be fixed on the front end of three phase isolated tube 5, the mounting panel that utilizes instrument transformer, carries out the secondary line cable at last and connects on chassis according to the scale car design and installation; And install the anti-electricity-theft protective cover of secondary additional, the assembly work of metering handcart is accomplished.
Claims (10)
1. a handcart is with three-phase finger-contact type voltage transformer; It is characterized in that; Adopt epoxy resin that iron core (1), a winding (2), secondary winding (3), a fuse (4), three phase isolated tube (5), secondary connection seat (6) vacuum pouring are cured as integral structure; Integral installation is in installing on the base plate (7), and the three phase isolated tube (5) that envelope is put a fuse (4) is the identical drum of shape of horizontal disposed at equal distance, and three primary connection terminals (8) are the trigger installation form; A phase pour mass (13) envelope is put A phase coil device body, and C phase pour mass (14) envelope is put C phase coil device body.
2. handcart according to claim 1 is characterized in that with three-phase finger-contact type voltage transformer primary connection terminal (8) is for having the trigger installation form of compression function.
3. handcart according to claim 1 is characterized in that with three-phase finger-contact type voltage transformer the trigger installation of primary connection terminal (8) adopts bolt (9) to be fixed on the front end of three phase isolated tube (5).
4. handcart according to claim 1 is characterized in that with three-phase finger-contact type voltage transformer three phase isolated tube (5) is a cuboid with the instrument transformer coupling part, terminal cylindrical shape.
5. handcart according to claim 1 is characterized in that with three-phase finger-contact type voltage transformer three phase isolated tube (5) comprises A phase insulating cylinder (5a), B phase insulating cylinder (5b) and C insulating cylinder (5c) mutually.
According to claim 1 or 5 described handcarts with three-phase finger-contact type voltage transformer; It is characterized in that; Be provided with vertical full skirt (10) between A phase insulating cylinder (5a) and the B phase insulating cylinder (5b), be provided with vertical full skirt (10) between B phase insulating cylinder (5b) and the C phase insulating cylinder (5c).
7. handcart according to claim 1 is characterized in that with three-phase finger-contact type voltage transformer the back of three phase isolated tube (5) is provided with vertical back insulating barrier (11), and the side is provided with vertical side insulating barrier (12).
8. handcart according to claim 1 is characterized in that with three-phase finger-contact type voltage transformer, base plate (7) is installed is provided with circular through hole (15).
9. handcart according to claim 1 is characterized in that with three-phase finger-contact type voltage transformer A phase pour mass (13) is identical with the body shape of C phase pour mass (14).
10. handcart according to claim 1 is characterized in that with three-phase finger-contact type voltage transformer, and two secondary connection seats (6) are positioned to be installed on the base plate (7), and A phase pour mass (13) and C be the place ahead of pour mass (14) mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202967393U CN202258751U (en) | 2011-08-15 | 2011-08-15 | Three-phase contact-finger type voltage transformer for handcart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202967393U CN202258751U (en) | 2011-08-15 | 2011-08-15 | Three-phase contact-finger type voltage transformer for handcart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258751U true CN202258751U (en) | 2012-05-30 |
Family
ID=46119957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202967393U Expired - Fee Related CN202258751U (en) | 2011-08-15 | 2011-08-15 | Three-phase contact-finger type voltage transformer for handcart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312466A (en) * | 2020-04-13 | 2020-06-19 | 湖南科太电气有限公司 | Three-phase integrated coil of dry type voltage-regulating soft starter |
-
2011
- 2011-08-15 CN CN2011202967393U patent/CN202258751U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312466A (en) * | 2020-04-13 | 2020-06-19 | 湖南科太电气有限公司 | Three-phase integrated coil of dry type voltage-regulating soft starter |
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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: 20120530 Termination date: 20200815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |