CN205103367U - Be used for reactor interturn insulation testing arrangement - Google Patents
Be used for reactor interturn insulation testing arrangement Download PDFInfo
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- CN205103367U CN205103367U CN201520921176.0U CN201520921176U CN205103367U CN 205103367 U CN205103367 U CN 205103367U CN 201520921176 U CN201520921176 U CN 201520921176U CN 205103367 U CN205103367 U CN 205103367U
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Abstract
The utility model relates to a be used for reactor interturn insulation testing arrangement, including three -phase regulator, rectifier circuit, inverter circuit, RLC filter circuit, high -frequency transformer T and test circuit, inverter circuit includes insulated gate polar form transistor G1, G2, G3, G4 and electric capacity C1, rectifier circuit's input links to each other with three -phase regulator's output, and its output links to each other with RLC filter circuit's input through inverter circuit, and RLC filter circuit links to each other with transformer T's input, and transformer T's output links to each other with test circuit's input. The utility model discloses can freely export the alternating current of arbitrary frequency, make the reactor tested and reach resonant frequency rather than parallelly connected electric capacity, rethread high -frequency transformer provides required test voltage for the reactor both ends to make the whole device can safety, reliable operation.
Description
Technical field
The utility model relates to reactor field of measuring technique, is specifically related to a kind of for reactor turn-to-turn insulation proving installation.
Background technology
No matter be iron-core reactor or air reactor, in its operational process, all reactor may be caused to burn due to turn-to-turn short circuit, thus affect the stable operation of electric system, therefore, power reactor manufacturer, while raising reactor winding quality, improvement encapsulating process, enhancing structural insulation, also should have the factory inspection ability whether checking reactor exists inter-turn insulation defect.Traditional reactor turn-to-turn insulation proving installation is mainly for air reactor, in the mode of pulse oscillating, by the control of ignition controller, the gap that concedes points is discharged to reactor winding, due to the inexactness of the ignition controller duration of ignition, very difficult guarantee is applied to the trial voltage degree of accuracy at reactor two ends, meanwhile, also can impact the life-span of device in discharge process to the ablation on ball gap surface.At present, the domestic reactor producer with air reactor turn-to-turn insulation power of test is relatively less, and iron-core reactor to do the technical merit of turn to turn test very limited.
Utility model content
The purpose of this utility model is to provide a kind of for reactor turn-to-turn insulation proving installation, freely can export the alternating current of optional frequency, tested reactor and the electric capacity in parallel with it is made to reach resonance frequency, required test voltage is provided to reactor two ends again by high-frequency transformer, and make whole device can safety, run reliably.
For achieving the above object, the utility model have employed following technical scheme: comprise three-phase regulator, rectification circuit, inverter circuit, RLC filtering circuit, high-frequency transformer T and test circuit, described inverter circuit comprises insulated gate electrode transistor npn npn G1, G2, G3, G4 and electric capacity C1, described transistor G1 is connected with the emitter of transistor G2, transistor G1, G2 collector respectively with transistor G3, the emitter of G4 is connected, described transistor G3, the collector of G4 and transistor G1, the emitter of G2 is connected with the two ends of electric capacity C1 respectively, the described two ends of electric capacity C1 are connected with the output terminal of rectification circuit, the input end of described rectification circuit is connected with the output terminal of three-phase regulator, the collector of described transistor G1 is connected through the input end of RLC filtering circuit with high-frequency transformer T with the collector of transistor G2, the output terminal of transformer T is connected with the input end of test circuit.
Described RLC filtering circuit is made up of inductance L 1, resistance R1 and electric capacity C2, one end of described inductance L 1 is connected with the collector of transistor G1, its other end is connected with the collector of transistor G2 with electric capacity C2 through resistance R1 successively, is connected in parallel on the input end of transformer T after described resistance R1 connects with electric capacity C2.
Described rectification circuit is made up of diode V1, V2, V3, V4, V5 and V6, described diode V1, V2 are connected with the collector of transistor G3, G4 with the negative electrode of V3, its anode is connected with the negative electrode of V6 with diode V4, V5 respectively, and diode V4, V5 are connected with the emitter of transistor G1, G2 with the anode of V6.
Described test circuit comprises tested reactor L2 and is connected in parallel on the electric capacity C3 at tested reactor L2 two ends, and the two ends of described electric capacity C3 are connected with the output terminal of transformer T.
As shown from the above technical solution, described in the utility model for reactor turn-to-turn insulation proving installation, circuit structure is simple, convenient test, freely can export the alternating current of optional frequency, make tested reactor and the electric capacity in parallel with it reach resonance frequency, then provide required test voltage by high-frequency transformer to reactor two ends, and make whole device can safety, run reliably.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1, the present embodiment for reactor turn-to-turn insulation proving installation, comprise three-phase regulator, rectification circuit 1, inverter circuit 2, RLC filtering circuit 3, high-frequency transformer T and test circuit 4, inverter circuit 2 comprises insulated gate electrode transistor npn npn G1, G2, G3, G4 and electric capacity C1, transistor G1 is connected with the emitter of transistor G2, transistor G1, G2 collector respectively with transistor G3, the emitter of G4 is connected, transistor G3, the collector of G4 and transistor G1, the emitter of G2 is connected with the two ends of electric capacity C1 respectively, the two ends of electric capacity C1 are connected with the output terminal of rectification circuit 1, the input end of rectification circuit 1 is connected with the output terminal of three-phase regulator, the collector of transistor G1 is connected through the input end of RLC filtering circuit 3 with high-frequency transformer T with the collector of transistor G2, the output terminal of transformer T is connected with the input end of test circuit 4.
RLC filtering circuit 3 is made up of inductance L 1, resistance R1 and electric capacity C2, one end of inductance L 1 is connected with the collector of transistor G1, its other end is connected with the collector of transistor G2 with electric capacity C2 through resistance R1 successively, and resistance R1 is connected in parallel on the input end of transformer T after connecting with electric capacity C2.Rectification circuit 1 is made up of diode V1, V2, V3, V4, V5 and V6, diode V1, V2 are connected with the collector of transistor G3, G4 with the negative electrode of V3, its anode is connected with the negative electrode of V6 with diode V4, V5 respectively, and diode V4, V5 are connected with the emitter of transistor G1, G2 with the anode of V6.Test circuit 4 comprises tested reactor L2 and is connected in parallel on the electric capacity C3 at tested reactor L2 two ends, and the two ends of electric capacity C3 are connected with the output terminal of transformer T.
Test philosophy: the inductance L 2 of tested reactor is known, and the known capacitance C3 mating withstand voltage higher is in parallel with it, input tested reactor L2 inductance value L, by calculating the control to inverter circuit 2, export the electric current of a characteristic frequency ω, and boosted by high-frequency transformer T, be applied to tested reactor L2 two ends, make inductance L and electric capacity C that resonance occur, now, reactor L2 both end voltage is high, electric current is little, when high-frequency transformer T boosts and reaches the system voltage of 2 times, if there is not the phenomenon of turn-to-turn short circuit in reactor L2, then test passes, otherwise, defective.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (4)
1. one kind for reactor turn-to-turn insulation proving installation, it is characterized in that: comprise three-phase regulator, rectification circuit, inverter circuit, RLC filtering circuit, high-frequency transformer T and test circuit, described inverter circuit comprises insulated gate electrode transistor npn npn G1, G2, G3, G4 and electric capacity C1, described transistor G1 is connected with the emitter of transistor G2, transistor G1, G2 collector respectively with transistor G3, the emitter of G4 is connected, described transistor G3, the collector of G4 and transistor G1, the emitter of G2 is connected with the two ends of electric capacity C1 respectively, the described two ends of electric capacity C1 are connected with the output terminal of rectification circuit, the input end of described rectification circuit is connected with the output terminal of three-phase regulator, the collector of described transistor G1 is connected through the input end of RLC filtering circuit with high-frequency transformer T with the collector of transistor G2, the output terminal of transformer T is connected with the input end of test circuit.
2. according to claim 1 for reactor turn-to-turn insulation proving installation, it is characterized in that: described RLC filtering circuit is made up of inductance L 1, resistance R1 and electric capacity C2, one end of described inductance L 1 is connected with the collector of transistor G1, its other end is connected with the collector of transistor G2 with electric capacity C2 through resistance R1 successively, is connected in parallel on the input end of transformer T after described resistance R1 connects with electric capacity C2.
3. according to claim 1 for reactor turn-to-turn insulation proving installation, it is characterized in that: described rectification circuit is made up of diode V1, V2, V3, V4, V5 and V6, described diode V1, V2 are connected with the collector of transistor G3, G4 with the negative electrode of V3, its anode is connected with the negative electrode of V6 with diode V4, V5 respectively, and diode V4, V5 are connected with the emitter of transistor G1, G2 with the anode of V6.
4. according to claim 1 for reactor turn-to-turn insulation proving installation, it is characterized in that: described test circuit comprises tested reactor L2 and is connected in parallel on the electric capacity C3 at tested reactor L2 two ends, and the two ends of described electric capacity C3 are connected with the output terminal of transformer T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520921176.0U CN205103367U (en) | 2015-11-14 | 2015-11-14 | Be used for reactor interturn insulation testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520921176.0U CN205103367U (en) | 2015-11-14 | 2015-11-14 | Be used for reactor interturn insulation testing arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN205103367U true CN205103367U (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520921176.0U Expired - Fee Related CN205103367U (en) | 2015-11-14 | 2015-11-14 | Be used for reactor interturn insulation testing arrangement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337508A (en) * | 2015-11-14 | 2016-02-17 | 哈尔滨理工大学 | Device for testing turn-to-turn insulation of electric reactor |
| CN109031056A (en) * | 2018-06-06 | 2018-12-18 | 国网江西省电力有限公司吉安供电分公司 | A kind of Current Transformer Secondary coil turn testing insulation between plates device and method |
| CN109581157A (en) * | 2018-11-15 | 2019-04-05 | 青岛艾诺智能仪器有限公司 | A kind of quick bump test device of turn-to-turn and method |
| CN109901037A (en) * | 2019-04-04 | 2019-06-18 | 中国科学院电工研究所 | High frequency transformer factory insulation test voltage measuring method based on the insulated with material service life |
-
2015
- 2015-11-14 CN CN201520921176.0U patent/CN205103367U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337508A (en) * | 2015-11-14 | 2016-02-17 | 哈尔滨理工大学 | Device for testing turn-to-turn insulation of electric reactor |
| CN109031056A (en) * | 2018-06-06 | 2018-12-18 | 国网江西省电力有限公司吉安供电分公司 | A kind of Current Transformer Secondary coil turn testing insulation between plates device and method |
| CN109581157A (en) * | 2018-11-15 | 2019-04-05 | 青岛艾诺智能仪器有限公司 | A kind of quick bump test device of turn-to-turn and method |
| CN109581157B (en) * | 2018-11-15 | 2020-12-18 | 青岛艾诺智能仪器有限公司 | Inter-turn rapid continuous impact testing device and method |
| CN109901037A (en) * | 2019-04-04 | 2019-06-18 | 中国科学院电工研究所 | High frequency transformer factory insulation test voltage measuring method based on the insulated with material service life |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20161114 |