CN210442462U - Withstand voltage testing device - Google Patents
Withstand voltage testing device Download PDFInfo
- Publication number
- CN210442462U CN210442462U CN201920514298.6U CN201920514298U CN210442462U CN 210442462 U CN210442462 U CN 210442462U CN 201920514298 U CN201920514298 U CN 201920514298U CN 210442462 U CN210442462 U CN 210442462U
- Authority
- CN
- China
- Prior art keywords
- voltage
- control module
- mcu control
- output group
- group circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a withstand voltage testing device, which comprises a control device, a voltage regulating device, an output group circuit and an alarm device; the control device is an MCU control module, a voltage adjusting device is arranged between the MCU control module and the output group circuit, the voltage adjusting device is a voltage detector arranged on the circuit, the voltage detector is connected with a contact on the sliding autotransformer of the stepping motor, the output group circuit is connected with a tested device, the MCU control module controls the output group circuit to be switched, and the corresponding voltage-resistant group is switched on through a plurality of groups of relays, so that the purpose of automatic switching is achieved.
Description
Technical Field
The utility model discloses be applied to the power test field. The safety voltage-withstanding device is used for testing the power supply.
Background
The current alternating current withstand voltage tester in the market adopts the framework of a power frequency transformer. The voltage required for the test is obtained by manually rotating the sliding contact through an auto-coupling transformer. The instrument has an output voltage and a leakage current display. The user can also set the upper limit of the leakage current. When the voltage exceeds the set value, the device gives an alarm, and the output high voltage is cut off to protect the tested equipment. Most of the existing pressure-resistant testers are operated manually. For multi-group voltage resistance detection, on one hand, voltage is manually adjusted, and on the other hand, a contact point of a high-voltage connector is manually changed. This is not only time consuming but also increases the risk to the tester.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that current withstand voltage tester is mostly manual operation. For multi-group voltage resistance detection, on one hand, voltage is manually adjusted, and on the other hand, a contact point of a high-voltage connector is manually changed. This is not only time consuming but also increases the risk to the tester.
In order to solve the above technical problem, the utility model discloses a following technical means:
a voltage withstand test device comprises a control device, a voltage regulating device, an output group circuit and an alarm device; the control device is an MCU control module, a voltage adjusting device is arranged between the MCU control module and the output group circuit, the voltage adjusting device is a voltage detector arranged on the circuit, the voltage detector is connected with a contact on the sliding autotransformer of the stepping motor, the output group circuit is connected with a tested device, the MCU control module controls the output group circuit to be switched, and the corresponding voltage-resistant group is switched on through a plurality of groups of relays, so that the purpose of automatic switching is achieved.
Preferably, the present invention further provides:
and a voltage value is set on the MCU control module, and when the voltage value reaches a set value, the stepping motor stops running.
The alarm device is an LED alarm lamp and a loud-speaking alarm.
And the MCU control module stores the upper limit value of the leakage current into the internal storage, compares the upper limit value with the actual leakage current outside, stops outputting the voltage-withstanding testing device after the current exceeds the upper limit value, and is communicated with the alarm device.
The control device is characterized in that the MCU control module is connected with a parameter control board, and a control input screen is arranged on the parameter control board.
The parameter control board is composed of touch screens, and different groups of upper limit values of the test withstand voltage and the leakage current are set by a user through a dialog box set by programming according to requirements. The values are transmitted to the MCU. The MCU regulates the output voltage through an algorithm. The stepper motor slides the contacts of the autotransformer. When the output voltage reaches a set value, the stepping motor stops rotating. Meanwhile, the MCU stores the upper limit value of the leakage current in the internal storage and compares the upper limit value with the actual leakage current of the outside. And after the current exceeds the upper limit, the instrument stops outputting and gives an alarm. The MCU controls the output group switching circuit, and corresponding voltage-resistant groups are switched on through a plurality of groups of relays, so that the purpose of automatic switching is achieved.
Drawings
Fig. 1 is a block diagram of an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the following examples.
Referring to fig. 1, the voltage withstand test device of the present invention includes a control device, a voltage regulating device, an output circuit, and an alarm device; the control device is an MCU control module, a voltage regulating device is arranged between the MCU control module and an output group circuit, the voltage regulating device is a voltage detector arranged on the circuit, the voltage detector is connected with a contact on a sliding autotransformer of the stepping motor, the output group circuit is connected with a tested device, the MCU control module controls the output group circuit to be switched, and a corresponding voltage-resistant group is switched on through a plurality of groups of relays, so that the purpose of automatic switching is achieved, the MCU control module is provided with a voltage value which reaches a set value, the stepping motor stops running, the alarm device is an LED alarm lamp and a loudspeaker alarm, the MCU control module stores the upper limit value of leakage current into an internal storage, after the current is compared with the actual leakage current outside, the voltage-resistant testing device stops outputting and is communicated with the alarm device and the MCU control module, the MCU control module is connected with the parameter control panel, and the parameter control panel is provided with a control input screen.
Since the above description is only a specific embodiment of the present invention, but the protection of the present invention is not limited thereto, any person skilled in the art can think of equivalent changes or substitutions of the technical features of the present invention, and all are covered in the protection scope of the present invention.
Claims (3)
1. A voltage withstand test device comprises a control device, a voltage regulating device, an output group circuit and an alarm device; the method is characterized in that: the control device is an MCU control module, a voltage adjusting device is arranged between the MCU control module and the output group circuit, the voltage adjusting device is a voltage detector arranged on the circuit, the voltage detector is connected with a contact on a sliding autotransformer of the stepping motor, the output group circuit is connected with a tested device, the MCU control module controls the output group circuit to be switched, corresponding voltage-resistant groups are switched on through a plurality of groups of relays, the MCU control module is provided with a voltage value, the voltage value reaches a set value, the stepping motor stops running, the MCU control module stores the upper limit value of leakage current into an internal storage, and after the MCU control module compares the upper limit value with the external actual leakage current, the voltage-resistant testing device stops outputting and is connected with an alarm device after the current exceeds the upper limit value.
2. A withstand voltage testing apparatus according to claim 1, characterized in that: the alarm device is an LED alarm lamp and a loud-speaking alarm.
3. A withstand voltage testing apparatus according to claim 1, characterized in that: the control device is characterized in that the MCU control module is connected with a parameter control board, and a control input screen is arranged on the parameter control board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920514298.6U CN210442462U (en) | 2019-04-16 | 2019-04-16 | Withstand voltage testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920514298.6U CN210442462U (en) | 2019-04-16 | 2019-04-16 | Withstand voltage testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210442462U true CN210442462U (en) | 2020-05-01 |
Family
ID=70401144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920514298.6U Active CN210442462U (en) | 2019-04-16 | 2019-04-16 | Withstand voltage testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210442462U (en) |
-
2019
- 2019-04-16 CN CN201920514298.6U patent/CN210442462U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU174066U1 (en) | Relay Test Device | |
| CN107367637A (en) | The automatic testing method of Transformer Winding insulaion resistance and dielectric loss detecting instrument | |
| CN203069753U (en) | Final-inspection bench for vacuum circuit breaker | |
| CN111239652A (en) | Polarity testing device for current transformer | |
| CN204116430U (en) | Relay protection multi-outlet pressing plate pulse voltage detection device | |
| CN110749819A (en) | Circuit breaker divide-shut brake dropout action voltage testing arrangement | |
| CN106569108B (en) | A kind of the resistance test system and detection method of interchanger | |
| CN106125030A (en) | The multifunctional check of Portable arrester on-Line Monitor Device | |
| CN114355074A (en) | Testing device and testing method of converter valve system | |
| CN210442462U (en) | Withstand voltage testing device | |
| CN109669089A (en) | A kind of GIS device poor contact temperature rise analogue test platform | |
| CN103592552A (en) | Instrument and method for testing characteristics of overvoltage protection device | |
| CN2781384Y (en) | Test control platform for start voltage of electroscope | |
| CN215526002U (en) | Continuous alternating-current voltage-withstanding power tester convenient for maintenance and management for assembly line | |
| CN208076625U (en) | A kind of type full-automatic transformation ratio tester | |
| CN111505497B (en) | Complete set of switch equipment test system and test method | |
| CN107748345B (en) | Device and method for verifying parameters of secondary voltage dividing plate of high-voltage direct-current voltage divider | |
| CN114200298A (en) | Power frequency voltage withstand capability and partial discharge detection device and method of pole-mounted circuit breaker | |
| CN209486209U (en) | A kind of device for the test of electromagnetic compatibility power frequency frequency multiplication magnetic field | |
| CN113533920B (en) | Automatic withstand voltage test device and method for insulating partition plate | |
| CN111175597A (en) | Multifunctional transformer comprehensive experiment system and method | |
| CN112505462A (en) | All-in-one transformer comprehensive test system | |
| CN214011393U (en) | Zinc oxide arrester alternating current parameter testing arrangement | |
| CN203812086U (en) | Detection device of controller of engineering machinery electric control system | |
| CN218037166U (en) | Generator withstand voltage test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |