CN216209578U - Testing device for high-frequency transformer - Google Patents
Testing device for high-frequency transformer Download PDFInfo
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- CN216209578U CN216209578U CN202122724833.0U CN202122724833U CN216209578U CN 216209578 U CN216209578 U CN 216209578U CN 202122724833 U CN202122724833 U CN 202122724833U CN 216209578 U CN216209578 U CN 216209578U
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Abstract
The utility model provides a testing device of a high-frequency transformer, which comprises an alternating current voltage regulator T1, an isolation transformer T2, a transformer T3, an alternating current voltmeter V1 and a direct current voltmeter V2, wherein the alternating current voltage regulator T1 is connected with the isolation transformer T2; the alternating current voltage regulator T1, the isolation transformer T2, the transformer T3 and the high-frequency transformer DT1 to be tested are sequentially connected, the output end of the high-frequency transformer DT1 to be tested is connected with the alternating current voltmeter V1, and the output end of the high-frequency transformer DT1 to be tested is connected with the direct current voltmeter V2. The utility model can quickly judge the working state of the transformer by measuring and displaying the voltage values of the primary side and the secondary side of the high-frequency transformer and comparing the voltage values, and meanwhile, an overcurrent protection alarm circuit is arranged on the device for protecting equipment. Therefore, the state of the high-frequency transformer can be detected, the maintenance time is saved, and the utilization rate of the accelerator is improved.
Description
Technical Field
The utility model relates to the technical field of transformer testing, in particular to a testing device for a high-frequency transformer.
Background
The high-frequency transformer of the key part of the electron accelerator occasionally has the phenomenon of high-voltage capacitor breakdown in operation, and because the high-frequency transformer is a fully-sealed part, the internal elements can not be checked and judged by perception when damaged.
Because the transformation ratio of the high-frequency transformer is 1:80, the difference is very large, and whether the high-frequency transformer is damaged or not cannot be judged by a conventional electronic instrument, great difficulty and challenge are brought to the maintenance of the accelerator.
SUMMERY OF THE UTILITY MODEL
The utility model provides a testing device of a high-frequency transformer, which is used for solving the problem of high difficulty in detecting the high-frequency transformer in the existing accelerator.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a testing device of a high-frequency transformer, which comprises an alternating current voltage regulator T1, an isolation transformer T2, a transformer T3, an alternating current voltmeter V1 and a direct current voltmeter V2; the alternating current voltage regulator T1, the isolation transformer T2, the transformer T3 and the high-frequency transformer DT1 to be tested are sequentially connected, the output end of the high-frequency transformer DT1 to be tested is connected with the alternating current voltmeter V1, and the output end of the high-frequency transformer DT1 to be tested is connected with the direct current voltmeter V2.
Further, one port of the secondary side of the transformer T3 is connected to one input port of the high-frequency transformer DT1 to be tested through an alternating current meter a 1.
Furthermore, the testing device further comprises an overcurrent protection circuit, the overcurrent protection circuit comprises a signal acquisition circuit, a control circuit and a switch circuit which are sequentially connected, and the switch circuit is further connected with the input end of the high-frequency switch transformer DT1 to be tested.
Further, the signal acquisition circuit comprises an ac transformer a2, a primary side of the ac transformer a2 is connected to one input terminal of the high-frequency switching transformer DT1, and a secondary side of the ac transformer a2 is connected to the control circuit.
Further, the control circuit is a single chip microcomputer.
Further, the switch circuit comprises a direct current relay, a coil of the direct current relay is connected with the output end of the control circuit, and a normally closed contact of the direct current relay is connected with one input end of the high-frequency switch transformer DT 1.
Furthermore, the overcurrent protection circuit further comprises an audible and visual alarm, one end of the audible and visual alarm is connected with the power supply N, and the other end of the audible and visual alarm is connected with the power supply L through a normally open contact of the direct current relay A2.
Furthermore, the overcurrent protection circuit also comprises a reset key, and the reset key is connected with the control circuit.
The effects provided in the contents of the present invention are only the effects of the embodiments, not all the effects of the present invention, and one of the above technical solutions has the following advantages or advantageous effects:
the utility model can quickly judge the working state of the transformer by measuring and displaying the voltage values of the primary side and the secondary side of the high-frequency transformer and comparing the voltage values, and meanwhile, an overcurrent protection alarm circuit is arranged on the device for protecting equipment. Therefore, the state of the high-frequency transformer can be detected, the maintenance time is saved, and the utilization rate of the accelerator is improved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an implementation manner of the embodiment of the present invention.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the utility model.
As shown in fig. 1 and 2, the testing apparatus for a high-frequency transformer provided by the present invention includes an ac voltage regulator T1, an isolation transformer T2, a transformer T3, an ac voltmeter V1, and a dc voltmeter V2; the alternating current voltage regulator T1, the isolation transformer T2, the transformer T3 and the high-frequency transformer DT1 to be tested are sequentially connected, the output end of the high-frequency transformer DT1 to be tested is connected with the alternating current voltmeter V1, and the output end of the high-frequency transformer DT1 to be tested is connected with the direct current voltmeter V2.
One port of the secondary side of the transformer T3 is connected with one input port of a high-frequency transformer DT1 to be tested through an alternating current meter A1.
The ac voltage regulator T1 is a 250VAC voltage regulator, the isolation transformer T2 is a 220VAC isolation transformer, and the transformer T3 is a 220:12 transformer.
The testing device further comprises an overcurrent protection circuit, the overcurrent protection circuit comprises a signal acquisition circuit, a control circuit and a switch circuit which are sequentially connected, and the switch circuit is further connected with the input end of the high-frequency switch transformer DT1 to be tested.
The signal acquisition circuit comprises an alternating current transformer A2, wherein the primary side of the alternating current transformer A2 is connected with one input end of the high-frequency switching transformer DT1, and the secondary side of the alternating current transformer A2 is connected with the control circuit. The control circuit is a single chip microcomputer.
The switch circuit comprises a direct current relay, a coil of the direct current relay is connected with the output end of the control circuit, and a normally closed contact of the direct current relay is connected with one input end of the high-frequency switch transformer DT 1.
The overcurrent protection circuit further comprises an audible and visual alarm, one end of the audible and visual alarm is connected with the power supply N, and the other end of the audible and visual alarm is connected with the power supply L through a normally open contact of the direct current relay A2.
The overcurrent protection circuit further comprises a reset key, and the reset key is connected with the control circuit.
The electrical principle of the above-described embodiment of the present invention is: the input end of a 250V/500W alternating current transformer T1 is connected with a 220VAC power supply, the output end of a T1 is connected with the input end of a 220VAC isolation transformer T2, the output end of the T2 is connected with the input end of a transformer T3 with a transformation ratio of 20, one port of the output end of a T3 is connected with one port of the input end of a high-frequency transformer DT1 through an alternating current ammeter A1, the other port of the output end of the T3 is connected with the other port of the input end of a high-frequency transformer DT1 through a direct current relay K1 and an alternating current transformer A2, the input port of the DT1 high-frequency transformer is connected with an alternating current voltmeter V1 in parallel, and the output end of the DT1 high-frequency transformer is connected with a direct current voltmeter V2. The alternating current transformer A2 is connected with an overcurrent protection circuit, the overcurrent protection circuit controls and starts an audible and visual alarm SG1 and locks a fault by identifying the current of the alternating current transformer A2, and the audible and visual alarm can be eliminated by a reset button BT1 after the fault is relieved.
The working principle of the testing device is as follows: firstly, an alternating current transformer TI is adjusted to a zero gear, data of an alternating current voltmeter V1, an alternating current ammeter A1 and a direct current voltmeter V2 are observed to be zero, the input voltage of a voltage regulator T1 is slowly increased, commercial power is transmitted to a high-frequency transformer DT1 through an isolation transformer T2 and a transformer T3, data of the alternating current voltmeter V1, the alternating current ammeter A1 and the direct current voltmeter V2 are observed, when the value of the V1 is close to 10V, whether the value of the V2 is within a range of 60-80 times of the value of the V1 is calculated, if yes, the high-frequency transformer DT1 is proved to be normal, and otherwise, the high-frequency transformer DT1 is proved to be damaged and needs to be disassembled and maintained. If a short-circuit fault occurs inside the high-frequency transformer DT1 or the voltage of the voltage regulator T1 is boosted too fast in the checking process, the alternating current voltmeter V1 exceeds 10V, the alternating current voltmeter A1 exceeds 10A, the alternating current transformer A2 feeds collected current signals back to the overcurrent protection circuit, the overcurrent protection circuit immediately starts the audible and visual alarm SG1 after recognizing the fault and energizes the direct current relay K1, and the power supply input of the high-frequency transformer DT1 is disconnected for protection. If the voltage of the voltage regulator T1 is artificially reduced to zero, the fault is relieved, the audible and visual alarm is eliminated according to the reset key BT1, and the damage of the high-frequency transformer can be detected again or directly judged.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (8)
1. A testing device for a high-frequency transformer is characterized by comprising an alternating-current voltage regulator T1, an isolation transformer T2, a transformer T3, an alternating-current voltmeter V1 and a direct-current voltmeter V2; the alternating current voltage regulator T1, the isolation transformer T2, the transformer T3 and the high-frequency transformer DT1 to be tested are sequentially connected, the output end of the high-frequency transformer DT1 to be tested is connected with the alternating current voltmeter V1, and the output end of the high-frequency transformer DT1 to be tested is connected with the direct current voltmeter V2.
2. The apparatus for testing a high frequency transformer as claimed in claim 1, wherein a port of a secondary side of said transformer T3 is connected to an input port of a high frequency transformer DT1 to be tested via an ac current meter a 1.
3. The high-frequency transformer testing device according to claim 1 or 2, further comprising an overcurrent protection circuit, wherein the overcurrent protection circuit comprises a signal acquisition circuit, a control circuit and a switch circuit which are connected in sequence, and the switch circuit is further connected with an input end of the high-frequency transformer DT1 to be tested.
4. The apparatus for testing a high frequency transformer as claimed in claim 3, wherein said signal acquisition circuit comprises an ac transformer a2, a primary side of said ac transformer a2 is connected to one input terminal of said high frequency switching transformer DT1, and a secondary side of said ac transformer a2 is connected to said control circuit.
5. The apparatus for testing a high frequency transformer as claimed in claim 3, wherein said control circuit is a single chip microcomputer.
6. The apparatus for testing a high frequency transformer as claimed in claim 3, wherein said switching circuit comprises a dc relay, a coil of said dc relay is connected to an output terminal of said control circuit, and a normally closed contact of said dc relay is connected to an input terminal of said high frequency switching transformer DT 1.
7. The apparatus for testing a high frequency transformer according to claim 6, wherein said overcurrent protection circuit further comprises an audible and visual alarm, one end of said audible and visual alarm is connected to power supply N, and the other end is connected to power supply L through a normally open contact of DC relay A2.
8. The apparatus for testing a high frequency transformer as claimed in claim 3, wherein said overcurrent protection circuit further comprises a reset button, said reset button being connected to said control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724833.0U CN216209578U (en) | 2021-11-08 | 2021-11-08 | Testing device for high-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724833.0U CN216209578U (en) | 2021-11-08 | 2021-11-08 | Testing device for high-frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216209578U true CN216209578U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122724833.0U Active CN216209578U (en) | 2021-11-08 | 2021-11-08 | Testing device for high-frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216209578U (en) |
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2021
- 2021-11-08 CN CN202122724833.0U patent/CN216209578U/en active Active
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