CN205749601U - A kind of AC/DC type HT testing transformer - Google Patents
A kind of AC/DC type HT testing transformer Download PDFInfo
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- CN205749601U CN205749601U CN201620442255.8U CN201620442255U CN205749601U CN 205749601 U CN205749601 U CN 205749601U CN 201620442255 U CN201620442255 U CN 201620442255U CN 205749601 U CN205749601 U CN 205749601U
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Abstract
The utility model discloses a kind of AC/DC type HT testing transformer, it is desirable to provide a kind of easy care and the high AC/DC type HT testing transformer of safety.It is provided with the housing of transforming circuit in including it, it is arranged at the bushing of housing upper end, it is arranged at the voltage equalizing ball of bushing upper end, it is arranged at the rectification silicon stack that interior and input and transforming circuit the outfan of bushing is electrically connected with, it is connected and stretches out the HVDC output terminal of voltage equalizing ball, the fuel tap being arranged on housing, voltage input-terminal, instrument measurement terminal and ground terminal with rectification silicon stack outfan；The upper end of voltage equalizing ball is removably connected with epoxy resin board, and the input of rectification silicon stack connects a high-voltage alternating lead-out terminal by wire, and ac high-voltage lead-out terminal stretches out voltage equalizing ball upper end；Being provided with two through hole on epoxy resin board, HVDC output terminal and high-voltage alternating lead-out terminal are divided into being positioned on two through hole, and through hole and are provided with the insulating lid closing through hole.
Description
Technical field
This utility model relates to electrical equipment technical field, especially relates to a kind of AC/DC type HT testing transformer.
Background technology
HT testing transformer is that power plant, power supply-distribution system etc. are for doing the fundamental test equipment of ac voltage withstanding test, for various electric products, electric elements, insulant etc. are carried out the dielectric(al) test under assigned voltage, the dielectric level of examination product, find the insulation defect of test specimen, weigh the ability of overvoltage.Outside, instrument coil is an independent winding to this HT testing transformer low-voltage coil, is generally 100V.Housing is octagonal, and the testing transformer of more than 10KVA is equipped with moveable iron tyre.There is the features such as lightweight, volume is little, conveniently moving, superior performance.By power frequency supply input operation case (or operating board) during use, through the armature winding of automatic coupling voltage regulator regulation voltage input to testing transformer.According to electromagnetic induction principle, power frequency high voltage can be obtained at secondary (high pressure) winding.This power frequency high voltage can obtain high direct voltage after high voltage silicon rectifier stack rectification and capacitor filtering, and its amplitude is 1.4 times of power frequency high voltage virtual value.Only should extract short-circuit rods out when using direct current, when using exchange, insert short-circuit rods.And in actual use, easily occur that short-circuit rods no insertion puts in place, it is impossible to output AC electric current, brings certain potential safety hazard to tested device.Another kind of situation is exactly to contact bad after short-circuit rods inserts, and after voltage raises, at bushing inner bottom part, scintillation can occur, be easily damaged testing transformer.For new person, together, be less susceptible to which is distinguished is High voltage output to two, transformator top joint, and which is short-circuit rods, easily makes mistakes during wiring, and high-voltage output connector is exposed outside, is not easy to wiring, easily causes contact and short circuit, poor stability.
Utility model content
This utility model overcomes shortcoming of the prior art, it is provided that a kind of easily distinguishable AC and DC joint, simple to operate, reliability is high, easy care and the high AC/DC type HT testing transformer of safety.
In order to solve above-mentioned technical problem, this utility model is achieved through the following technical solutions:
A kind of AC/DC type HT testing transformer, including the housing being provided with transforming circuit in it, it is arranged at the bushing of housing upper end, it is arranged at the voltage equalizing ball of bushing upper end, it is arranged at the rectification silicon stack that interior and input and transforming circuit the outfan of bushing is electrically connected with, it is connected and stretches out the HVDC output terminal of voltage equalizing ball, the fuel tap being arranged on housing, voltage input-terminal, instrument measurement terminal and ground terminal with rectification silicon stack outfan；The upper end of described voltage equalizing ball is removably connected with epoxy resin board, and the input of described rectification silicon stack connects a high-voltage alternating lead-out terminal by wire, and ac high-voltage lead-out terminal stretches out voltage equalizing ball upper end；Being provided with two through hole on described epoxy resin board, described HVDC output terminal and high-voltage alternating lead-out terminal are divided into being positioned on two through hole, and through hole and are provided with the insulating lid closing through hole.
Preferably, described insulating lid and through hole clamping or be spirally connected.
Preferably, described insulating lid is made up of rubber or plastic cement.
Preferably, described through hole is circular or hexagon.
Preferably, described epoxy resin board is rectangle, connection bonding with voltage equalizing ball.
Compared with prior art, this utility model has the advantage that
(1) this utility model original short-circuit rods is abandoned need not, make originally to need to select to insert or pull out short-circuit rods according to job requirement and select the simple operation of AC and DC.Would not occur not inserting because of short-circuit rods putting in place and not exchanging the situation generation of output, or destructive test Accident of Transformer also will not occur because short-circuit rods contacts bad generation scintillation again.The most do not exist for new person and which can not correctly be distinguished be high-voltage output connector and occur during wrong line.
(2) this utility model is by rear for alternating current and direct current terminal very clear, when testing transformer works when, just can have direct current export with exchanging simultaneously, laboratory technician can carry out correct selection corresponding joint wiring according to job requirement, reached simple to operate, be easily maintained, reliability high, effectively extend the service life of testing transformer.And alternating current and direct current terminal may be contained within, in the through hole of epoxy resin board, substantially without getting an electric shock, and when alternating current and direct current terminal does not uses, having insulating lid to protect, safety is high.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not paying creative work premise, broadly fall into the scope of this utility model protection.
AC/DC type HT testing transformer shown in Fig. 1-2, including the housing 1 being provided with transforming circuit in it, it is arranged at the bushing 2 of housing 1 upper end, it is arranged at the voltage equalizing ball 3 of bushing 2 upper end, it is arranged at the rectification silicon stack 4 that interior and input and transforming circuit the outfan of bushing 2 is electrically connected with, it is connected and stretches out the HVDC output terminal 5 of voltage equalizing ball 3, the fuel tap 6 being arranged on housing 1, voltage input-terminal 7, instrument measurement terminal 8 and ground terminal 9 with rectification silicon stack 4 outfan；The upper end of described voltage equalizing ball 3 is removably connected with epoxy resin board 10, and the input of described rectification silicon stack 4 connects a high-voltage alternating lead-out terminal 11 by wire, and ac high-voltage lead-out terminal 11 stretches out voltage equalizing ball 3 upper end；Being provided with two through hole on described epoxy resin board 10, described HVDC output terminal 5 and high-voltage alternating lead-out terminal 11 are divided into being positioned on two through hole, and through hole and are provided with the insulating lid 12 closing through hole.
Wherein, described insulating lid 12 and through hole can be to use clamping or the mode that removably connects such as be spirally connected.Described insulating lid 12 can be made up of rubber or plastic cement.Described through hole can be the suitable shapes such as circle or hexagon.Described epoxy resin board 10 can be rectangle, connection bonding with voltage equalizing ball 3.
This utility model original short-circuit rods is abandoned need not, make originally to need to select to insert or pull out short-circuit rods according to job requirement and select the simple operation of AC and DC.Would not occur not inserting because of short-circuit rods putting in place and not exchanging the situation generation of output, or destructive test Accident of Transformer also will not occur because short-circuit rods contacts bad generation scintillation again.The most do not exist for new person and which can not correctly be distinguished be high-voltage output connector and occur during wrong line.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (5)
1. an AC/DC type HT testing transformer, including the housing being provided with transforming circuit in it, it is arranged at the bushing of housing upper end, it is arranged at the voltage equalizing ball of bushing upper end, it is arranged at the rectification silicon stack that interior and input and transforming circuit the outfan of bushing is electrically connected with, it is connected and stretches out the HVDC output terminal of voltage equalizing ball, the fuel tap being arranged on housing, voltage input-terminal, instrument measurement terminal and ground terminal with rectification silicon stack outfan；It is characterized in that: the upper end of described voltage equalizing ball is removably connected with epoxy resin board, the input of described rectification silicon stack connects a high-voltage alternating lead-out terminal by wire, and ac high-voltage lead-out terminal stretches out voltage equalizing ball upper end；Being provided with two through hole on described epoxy resin board, described HVDC output terminal and high-voltage alternating lead-out terminal are divided into being positioned on two through hole, and through hole and are provided with the insulating lid closing through hole.
AC/DC type HT testing transformer the most according to claim 1, it is characterised in that: described insulating lid and through hole clamping or be spirally connected.
AC/DC type HT testing transformer the most according to claim 1 and 2, it is characterised in that: described insulating lid is made up of rubber or plastic cement.
AC/DC type HT testing transformer the most according to claim 3, it is characterised in that: described through hole is circular or hexagon.
AC/DC type HT testing transformer the most according to claim 4, it is characterised in that: described epoxy resin board is rectangle, connection bonding with voltage equalizing ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620442255.8U CN205749601U (en) | 2016-05-16 | 2016-05-16 | A kind of AC/DC type HT testing transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620442255.8U CN205749601U (en) | 2016-05-16 | 2016-05-16 | A kind of AC/DC type HT testing transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205749601U true CN205749601U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620442255.8U Active CN205749601U (en) | 2016-05-16 | 2016-05-16 | A kind of AC/DC type HT testing transformer |
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| CN (1) | CN205749601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116699206A (en) * | 2023-07-28 | 2023-09-05 | 国网江苏省电力有限公司常州供电分公司 | Corona-resistant voltage device of high-voltage rectifying silicon stack |
-
2016
- 2016-05-16 CN CN201620442255.8U patent/CN205749601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116699206A (en) * | 2023-07-28 | 2023-09-05 | 国网江苏省电力有限公司常州供电分公司 | Corona-resistant voltage device of high-voltage rectifying silicon stack |
| CN116699206B (en) * | 2023-07-28 | 2023-11-14 | 国网江苏省电力有限公司常州供电分公司 | Corona-resistant voltage device of high-voltage rectifying silicon stack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Peace & 650302 Yunnan province Kunming City Xiangyang Road No. 6 Patentee after: Yunnan Qinglang Energy Technology Co Ltd Address before: Yunnan province office building 650302 Kunming Anning Kunming Steel Energy Conservation Center Patentee before: Yunnan Pan-Asia Energy Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 650302 No. 6 Xiangyang East Road, Kunming Anning, Yunnan Province Patentee after: Yunnan Tianlang Energy Technology Co., Ltd. Address before: 650302 No. 6 Xiangyang East Road, Kunming Anning, Yunnan Province Patentee before: Yunnan Qinglang Energy Technology Co Ltd |