CN205230796U - Voltage transformer - Google Patents
Voltage transformer Download PDFInfo
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- CN205230796U CN205230796U CN201520914065.7U CN201520914065U CN205230796U CN 205230796 U CN205230796 U CN 205230796U CN 201520914065 U CN201520914065 U CN 201520914065U CN 205230796 U CN205230796 U CN 205230796U
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- shell
- voltage transformer
- insulator
- conducting rod
- support
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Abstract
The utility model discloses a voltage transformer, including safety cover, insulator, shell and ware body, last fixed connection is extremely down followed in proper order to safety cover, insulator and shell, the ware body is established in the shell, the ware is provided with the conducting rod on one's body, conducting rod and ware body electric connection, establish in the safety cover on the conducting rod top, be provided with ground connection seat, inflation valve and secondary terminal board on the shell, be provided with the secondary wiring board in the secondary terminal board, the ground connection seat is equipped with two, ground connection seat and secondary wiring board respectively with ware body electric connection, the shell bottom is provided with the support, support and shell fixed connection, be provided with explosion -proof equipment in the support, this voltage transformer insulating properties is good, and the leak rate is low, and operational reliability is high, possesses good explosion -proof ability.
Description
Technical field
The utility model relates to a kind of controller switching equipment technical field, particularly relates to a kind of voltage transformer.
Background technology
Voltage transformer and transformer are very alike, are all used to the voltage on conversion line, but the object of transformer voltage of transformation is in order to transmission of electric energy, and therefore capacity is very large, be all generally with kilovolt-ampere or megavolt-ampere for unit of account; And the object of voltage transformer voltage of transformation; mainly be used for powering to measuring instrument and protective relaying device; be used for the voltage of measurement circuitry, power and electric energy; or the expensive equipment, motor and the transformer that are used for when line failure in protection circuit; therefore the capacity of voltage transformer is very little; generally all only have several volt-amperes, tens volt-amperes, be maximumly also no more than one kilovolt-ampere.
Voltage transformer is the transformer of a band iron core, and it is primarily of first and second coil, iron core and insulation composition.When applying a voltage U 1 on a winding, just a magnetic flux is produced in iron core, according to the law of electromagnetic induction, then in secondary winding, just produce a secondary voltage U2, change once or the number of turn of secondary winding, different primary voltages and secondary voltage ratio can be produced, this just can form not voltage transformer on year-on-year basis, and voltage transformer converts high voltage to low-voltage in proportion, i.e. 100V, voltage transformer primary side is connected on primary system, secondary side joint measuring instrument, relaying protection etc.; (capacitance type potential transformer is widely used) of mainly electromagnetic type, separately has non electromagnetic, as electronic type, photoelectric type
The basic structure of voltage transformer is very similar with transformer, and it also has two windings, and one is a winding, and one is secondary winding.Two windings are all contained in or around on iron core, between two windings and have insulation between winding and iron core, make between two windings and have electrical isolation between winding and iron core, operationally, a winding N1 is also connected on circuit voltage transformer, and secondary winding N2 also connects instrument or relay, therefore when measuring the voltage on high-tension line, although primary voltage is very high, secondary is low pressure, can guarantee the safety of operating personnel and instrument.
Current existing voltage transformer structure complex structure, device insulation property are general, and leak rate is high, and operational reliability is not high, there is certain potential safety hazard.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of good insulation preformance, and leak rate is low, and operational reliability is high, possesses the voltage transformer of excellent explosion-proof performance.
For solving the problem, the utility model adopts following technical scheme: a kind of voltage transformer, comprise protective cover, insulator, shell and device body, described protective cover, insulator is fixedly connected with successively from top to bottom with shell, described device body is established in the enclosure, described device is provided with conducting rod with it, protective cover can protect conducting rod injury-free, secondary connection plate in secondary terminal box facilitates the installation of circuit, charge valve is put and is just poured sulfur hexafluoride gas, keep leak rate low, operational reliability is high, insulator keeps good insulation preformance, explosion-protection equipment possesses excellent explosion-proof performance, support is conveniently installed, described conducting rod and device body are electrically connected, described conducting rod top is located in protective cover, described shell is provided with grounding base, charge valve and secondary terminal box, secondary connection plate is provided with in described secondary terminal box, described grounding base is provided with two, described grounding base and secondary connection plate are electrically connected with device body respectively, described outer casing bottom is provided with support, described support is fixedly connected with shell, explosion-protection equipment is provided with in described support.
As preferably, described insulator is disc insulator, keeps good insulation effect.
As preferably, described secondary terminal box welds with shell, and holding structure is reliable and stable.
As preferably, described cover top portion is provided with suspension ring, conveniently carries out Installation and Debugging.
As preferably, described suspension ring are provided with more than one, Stability Analysis of Structures when keeping installing.
This technical scheme has good insulation preformance, and leak rate is low, and operational reliability is high, possesses the feature of excellent explosion-proof performance.
The beneficial effects of the utility model are: the protective cover of setting can protect conducting rod injury-free; secondary connection plate in secondary terminal box facilitates the installation of circuit; charge valve is put and is just poured sulfur hexafluoride gas; keep leak rate low; operational reliability is high; insulator keeps good insulation preformance, and explosion-protection equipment possesses excellent explosion-proof performance, and support is conveniently installed.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of a kind of voltage transformer of the present utility model.
Embodiment
Consult shown in Fig. 1, a kind of voltage transformer, comprise protective cover 1, insulator 2, shell 3 and device body 4, described protective cover 1, insulator 2 is fixedly connected with successively from top to bottom with shell 3, described device body 4 is located in shell 3, described device body 4 is provided with conducting rod 5, described conducting rod 5 is electrically connected with device body 4, described conducting rod 5 top is located in protective cover 1, described shell 3 is provided with grounding base 6, charge valve 7 and secondary terminal box 8, in use, by support 10, voltage transformer is arranged on working region, conducting rod 5 and secondary connection plate 9 are linked in circuit respectively, sulfur hexafluoride gas inflation operation is carried out by charge valve 7 pairs of shells 3, can run after completing, secondary connection plate 9 is provided with in described secondary terminal box 8, described grounding base 6 is provided with two, described grounding base 6 and secondary connection plate 9 are electrically connected with device body 4 respectively, support 10 is provided with bottom described shell 3, described support 10 is fixedly connected with shell 3, explosion-protection equipment 11 is provided with in described support 10.
Described insulator 2 is disc insulator, in use, keeps good insulation effect.
Described secondary terminal box 8 welds with shell 3, and in use, holding structure is reliable and stable.
Described shell 3 top is provided with suspension ring 12, in use, conveniently carries out Installation and Debugging.
Described suspension ring 12 are provided with more than one, in use, and Stability Analysis of Structures when keeping installing.
In use, by support 10, voltage transformer is arranged on working region, conducting rod 5 and secondary connection plate 9 are linked in circuit respectively, carry out sulfur hexafluoride gas inflation operation, can run after completing by charge valve 7 pairs of shells 3.
The beneficial effects of the utility model are: the protective cover of setting can protect conducting rod injury-free; secondary connection plate in secondary terminal box facilitates the installation of circuit; charge valve is put and is just poured sulfur hexafluoride gas; keep leak rate low; operational reliability is high; insulator keeps good insulation preformance, and explosion-protection equipment possesses excellent explosion-proof performance, and support is conveniently installed.
The above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection range of the present utility model; therefore, the protection range that protection range of the present utility model should limit with claims is as the criterion.
Claims (5)
1. a voltage transformer, it is characterized in that: comprise protective cover, insulator, shell and device body, described protective cover, insulator is fixedly connected with successively from top to bottom with shell, described device body is established in the enclosure, described device is provided with conducting rod with it, described conducting rod and device body are electrically connected, described conducting rod top is located in protective cover, described shell is provided with grounding base, charge valve and secondary terminal box, secondary connection plate is provided with in described secondary terminal box, described grounding base is provided with two, described grounding base and secondary connection plate are electrically connected with device body respectively, described outer casing bottom is provided with support, described support is fixedly connected with shell, explosion-protection equipment is provided with in described support.
2. voltage transformer according to claim 1, is characterized in that: described insulator is disc insulator.
3. voltage transformer according to claim 1, is characterized in that: described secondary terminal box welds with shell.
4. voltage transformer according to claim 1, is characterized in that: described cover top portion is provided with suspension ring.
5. voltage transformer according to claim 4, is characterized in that: described suspension ring are provided with more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520914065.7U CN205230796U (en) | 2015-11-17 | 2015-11-17 | Voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520914065.7U CN205230796U (en) | 2015-11-17 | 2015-11-17 | Voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205230796U true CN205230796U (en) | 2016-05-11 |
Family
ID=55905843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520914065.7U Active CN205230796U (en) | 2015-11-17 | 2015-11-17 | Voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205230796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374535A (en) * | 2015-11-17 | 2016-03-02 | 成都科创佳思科技有限公司 | Voltage transformer |
-
2015
- 2015-11-17 CN CN201520914065.7U patent/CN205230796U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374535A (en) * | 2015-11-17 | 2016-03-02 | 成都科创佳思科技有限公司 | Voltage transformer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |