CN210835087U - Portable power transformer detection device - Google Patents
Portable power transformer detection device Download PDFInfo
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- CN210835087U CN210835087U CN201921196222.XU CN201921196222U CN210835087U CN 210835087 U CN210835087 U CN 210835087U CN 201921196222 U CN201921196222 U CN 201921196222U CN 210835087 U CN210835087 U CN 210835087U
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Abstract
This scheme discloses a portable power transformer detection device in electrical equipment detection area, including the detection case, the detection case includes box and case lid, be equipped with power and circuit board in the box, the circuit board is connected with the power electricity, is equipped with contravariant module, voltage regulating module, protection return circuit, output return circuit, current-voltage measurement return circuit and display return circuit on the circuit board. According to the scheme, whether the power transformer is burnt or not can be detected through the arrangement of the inversion module, the voltage regulating module, the protection circuit, the output circuit, the current and voltage measuring circuit, the display circuit and the power supply; through setting up power and circuit board in the detection case, only need during the detection mention the other power transformer with the detection case and can detect whether power transformer burns out, avoided the transformer to break down the back, need pull down it and transport to the detection unit and carry out the inconvenient part that detects.
Description
Technical Field
The utility model belongs to electrical equipment detection area, concretely relates to portable power transformer detection device.
Background
In recent years, with rapid development of economy, electricity consumption of people increases, and electric power load also rises. The burning loss phenomenon often appears in main transformer, and the main reason that the transformer burns loss has: over-voltage, overload, violation of operation, etc. The overvoltage is divided into atmospheric overvoltage and operation overvoltage, the vertical direction of the operation overvoltage is generally 2-4.5 times of rated voltage, the atmospheric overvoltage can reach 8-12 times of the rated voltage, the designed insulation strength of the transformer is generally considered to bear 2.5 times of overvoltage, the insulation of the transformer can be damaged when the overvoltage exceeds 2.5 times, the service life of the transformer is shortened, and insulation breakdown can be caused seriously, so that the burning loss of the transformer is caused.
After the transformer breaks down, need pull down it and transport to detection unit and detect, because the transformer is bulky, dismouting and transportation are all very inconvenient, consequently need a detection device that can the on-the-spot detection transformer trouble.
SUMMERY OF THE UTILITY MODEL
The utility model provides a portable power transformer detection device to whether the witnessed inspections transformer damages.
In order to achieve the above object, the present invention provides the following solutions: the utility model provides a portable power transformer detection device, includes the detection case, and the detection case includes box and case lid, be equipped with power and circuit board in the box, the circuit board is connected with the power electricity, is equipped with contravariant module, voltage regulating module, protection circuit, output circuit, current-voltage measurement return circuit and display circuit on the circuit board.
The working principle of the scheme is as follows: firstly, a DC12V storage battery is charged through a charging module, then AC220V alternating current is output through an inverter module, required voltage (such as AC12V, 36V, 48V and the like) is regulated and output through a voltage regulating module, then voltage is output through an output loop, then the magnitude of no-load current of a power transformer under different voltages is measured, the magnitude of the no-load current is compared with the standard no-load current of the power transformer, whether the power transformer is burnt or not is judged, and when the protection loop detects that the no-load current exceeds a setting value, the output loop is cut off, and an alarm is given out.
The beneficial effect of this scheme does: whether the power transformer is burnt or not can be detected through the arrangement of the inversion module, the voltage regulation module, the protection circuit, the output circuit, the current and voltage measurement circuit, the display circuit and the power supply; through setting up power and circuit board in the detection case, only need during the detection mention the other power transformer with the detection case and can detect whether power transformer burns out, avoided the transformer to break down the back, need pull down it and transport to the detection unit and carry out the inconvenient part that detects.
Furthermore, the power supply is a storage battery or a vehicle-mounted battery, and the storage battery or the vehicle-mounted battery is electrically connected with the inverter module in a terminal connection mode. Therefore, different power supply modes can be adopted according to different site environments, and the condition that the power supply is insufficient due to a long-term single power supply mode is avoided.
Furthermore, a control loop for controlling power conversion is further arranged on the circuit board, and the control loop is electrically connected with the power supply and the inverter module. And the control circuit controls power conversion and display according to the detected storage battery or vehicle-mounted battery.
Further, the voltage regulating module is a voltage regulator. The voltage regulator has the advantages of small loss, low temperature rise, high efficiency, small magnetic flux leakage, strong instant overload capacity, low noise and small vibration.
Further, the voltage regulating module is a transformer. The transformer has good safety.
Further, be equipped with the mounting panel in the box, the battery is fixed on the mounting panel, through bracing piece fixed connection between mounting panel and the circuit board, be equipped with electronic jar between the bottom in mounting panel and the box. Through the flexible of control electronic jar, alright with stretch out the box with circuit board and power outside, be convenient for like this overhaul circuit board and power.
Drawings
Fig. 1 is a working schematic diagram of a portable power transformer detection device of the present invention;
fig. 2 is a schematic circuit diagram of a circuit board in the portable power transformer detection device of the present invention;
fig. 3 is a contact point diagram of a transformer transfer switch in the present invention;
fig. 4 is a schematic structural diagram of a detection box in the portable power transformer detection device of the present invention;
fig. 5 is a layout view of the instrument panel of fig. 1.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the multifunctional electric power meter comprises a box body 1, a box cover 2, a handle 3, an electric cylinder 4, a mounting plate 5, a support rod 6, a circuit board 7, an instrument panel 8, a binding post 9, an inverter DA, an inverter switch KK2, a current transformer TA, a circuit breaker ZK, a transformer BK, a transformer change-over switch KK1, a single-phase multifunctional meter PM, a first digital display voltmeter PV1, a second digital display voltmeter PV2 and a display lamp HD.
Example 1 is substantially as shown in figure 4: a portable power transformer detection device comprises a detection box, wherein the detection box comprises a box body 1 and a box cover 2, a handle 3 is arranged on the box cover 2, a mounting plate 5, a circuit board 7 and an instrument board 8 are arranged in the box body 1, a storage battery is fixedly connected to the mounting plate 5, the electric quantity of the storage battery is supplemented by mains supply through a charging module, an inverter DA, a transformer BK and a current transformer TA are arranged on the circuit board 7, the periphery of the instrument board 8 is in sliding connection with the inner wall of the box body 1, a single-phase multifunctional meter PM, a first digital display voltmeter PV1, a second digital display voltmeter PV2, a transformer change-over switch KK1, an inverter switch KK2, a circuit breaker ZK, a display lamp HD; through 6 fixed connection of bracing piece between mounting panel 5 and the circuit board 7, also through 6 fixed connection of bracing piece between circuit board 7 and the instrument board 8, be equipped with electronic jar 4 between mounting panel 5 and the interior bottom of box 1, electronic jar 4's driving source is alternating current brake motor, and alternating current brake motor links to each other with the battery, and alternating current brake motor's control switch installs on instrument board 8.
Fig. 2 shows a circuit diagram of the electric components in the embodiment 1 and the embodiment 2, and fig. 3 shows a contact point diagram of the transformer changeover switch KK1 for adjusting the output voltage of the transformer BK in the embodiment 2.
The layout of the instrument panel 8 in example 1 is shown in fig. 5.
The operation principle diagrams of the embodiment 1 and the embodiment 2 are shown in fig. 1, and specifically include that firstly, a DC12V storage battery is charged through a charging module, then AC220V alternating current is output through an inverter module, then a voltage regulating module is used for regulating and outputting required voltage (such as AC12V, 36V, 48V and the like), then voltage is output through an output loop, then the magnitude of no-load current of a power transformer BK under different voltages is measured, and compared with standard no-load current of the power transformer BK, whether the power transformer BK is burnt or not is judged, and when the protection loop detects that the no-load current exceeds a setting value, the output loop is cut off, and an alarm is given out.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. The utility model provides a portable power transformer detection device which characterized in that: including the detection case, the detection case includes box and case lid, be equipped with power and circuit board in the box, the circuit board is connected with the power electricity, is equipped with contravariant module, voltage regulating module, protection circuit, output circuit, current-voltage measurement return circuit and demonstration return circuit on the circuit board.
2. A portable power transformer testing device according to claim 1, characterized in that: the power supply is a storage battery or a vehicle-mounted battery, and the storage battery or the vehicle-mounted battery is electrically connected with the inverter module in a terminal connection mode.
3. A portable power transformer testing device according to claim 2, characterized in that: the circuit board is also provided with a control loop for controlling power supply conversion, and the control loop is electrically connected with the power supply and the inversion module.
4. A portable power transformer testing device according to claim 3, characterized in that: the voltage regulating module is a voltage regulator.
5. A portable power transformer testing device according to claim 3, characterized in that: the voltage regulating module is a transformer.
6. A portable power transformer testing device according to any one of claims 4-5, characterized in that: the improved multifunctional storage battery box is characterized in that a mounting plate is arranged in the box body, the storage battery is fixed on the mounting plate, the mounting plate is fixedly connected with a circuit board through a support rod, and an electric cylinder is arranged between the bottom in the mounting plate and the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921196222.XU CN210835087U (en) | 2019-07-26 | 2019-07-26 | Portable power transformer detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921196222.XU CN210835087U (en) | 2019-07-26 | 2019-07-26 | Portable power transformer detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210835087U true CN210835087U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921196222.XU Active CN210835087U (en) | 2019-07-26 | 2019-07-26 | Portable power transformer detection device |
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| CN (1) | CN210835087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320426A (en) * | 2019-07-26 | 2019-10-11 | 贵州长征电器成套有限公司 | A kind of portable power transformer detection device |
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2019
- 2019-07-26 CN CN201921196222.XU patent/CN210835087U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320426A (en) * | 2019-07-26 | 2019-10-11 | 贵州长征电器成套有限公司 | A kind of portable power transformer detection device |
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