CN206450749U - A kind of multivoltage tester - Google Patents
A kind of multivoltage tester Download PDFInfo
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- CN206450749U CN206450749U CN201720034012.5U CN201720034012U CN206450749U CN 206450749 U CN206450749 U CN 206450749U CN 201720034012 U CN201720034012 U CN 201720034012U CN 206450749 U CN206450749 U CN 206450749U
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- pressing plate
- timing
- voltage
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Abstract
The utility model discloses a kind of multivoltage tester, includes：Main control module, multi-channel measurement pressing plate, AD voltage samples module, timing module, communication module, power module, input module and liquid crystal display；The multi-channel measurement pressing plate includes the startup idle contact of at least measurement end of 2 passages and a startup timing module, and the startup idle contact is started using ground pin；The timing module, starts the control signal of idle contact to receive, and starts timing；Or when judging the first passage energization of multichannel pressing plate, start timing；It sends time data to main control module；The AD voltage samples module, the voltage analog signal of the multi-channel measurement pressing plate of reception is converted into voltage digital signal, and inputs main control module；The input module, input instruction is sent using button to main control module.Multivoltage tester of the present utility model, can conveniently disposable measurement and record to multigroup pressing plate progress current potential.
Description
Technical field
The utility model is related to electric instrument, and in particular to a kind of multivoltage tester.
Background technology
Need frequently to measure each end-point voltage in power system, can only single measurement one end points using common multimeter
Voltage, for multiple point-to-point systems, then needs frequent switching end points, causes many pendulous frequencies, inefficiency, waste of manpower.
And use conventional multigroup output clamping to verify, pressing plate can only successively be measured using universal meter, it is impossible to ensure to measure simultaneously,
If front and rear protection act is inconsistent, the incorrect of assay will be caused；And repeatedly pressing plate is measured, repeat to simulate
The action logic of protection, adds the action frequency of protective relaying device and the workload of relay protection personnel, and it is fixed greatly to waste
Examine the working time；Further, since the outlet pulses retention time is shorter, the test result of digital multimeter reaction flashes across, no
Easy viewing test result.
Utility model content
The purpose of this utility model is to be directed to above-mentioned problems of the prior art, it is proposed that a kind of multivoltage test
Instrument, solves the drawbacks of many common multimeter pendulous frequencies, inefficiency, waste of manpower, greatly improves the efficiency of outlet verification
And accuracy, saving manpower, ensure the reliability of protection equipment.
To reach the purpose of above-mentioned utility model, the utility model is achieved through the following technical solutions：
A kind of multivoltage tester, includes：Main control module, multi-channel measurement pressing plate, AD voltage samples module, timing mould
Block, communication module, power module, input module and liquid crystal display；The multi-channel measurement pressing plate includes the measurement of at least 2 passages
End and the startup idle contact of a startup timing module, the startup idle contact are started using ground pin；The timing module,
Start the control signal of idle contact to receive, and start timing；Or when judging the first passage energization of multichannel pressing plate, open
Beginning timing；It sends time data to main control module；The AD voltage samples module, to by the multi-channel measurement pressing plate of reception
Voltage analog signal be converted to voltage digital signal, and input main control module；The input module, using button to master control mould
Block sends input instruction；The liquid crystal display, to show measurement result；The main control module, to receive AD voltage sample moulds
The voltage digital signal of block and the time data of timing module, and data are transmitted to host computer by communication module, and control liquid
The display information of crystalline substance screen and the input instruction for receiving input module：The communication module is led to for main control module with host computer
Letter；The power module is to for master control module for power supply.
A kind of multivoltage tester of the present utility model, can the conveniently disposable survey that current potential is carried out to multigroup pressing plate
Amount and record, solve many common multimeter pendulous frequencies, inefficiency, many drawbacks of waste of manpower, substantially increase
The efficiency of verification is exported, manpower is saved, had in the debugging efforts such as regular inspection, the examination of all multiple exit devices of relay protection specialty
Promotional value.
Brief description of the drawings
Fig. 1 is the structured flowchart of multivoltage tester of the present utility model.
Embodiment
The technical scheme in the utility model embodiment is clearly and completely retouched with reference to the accompanying drawings and examples
State, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.
Referring to structured flowcharts of the Fig. 1 for a kind of multivoltage tester of the utility model embodiment,
A kind of multivoltage tester, includes：Main control module 1, multi-channel measurement pressing plate 2, AD voltage samples module 3, meter
When module 4, communication module 7, power module 8, input module 6 and liquid crystal display 5；
The multi-channel measurement pressing plate 2 includes at least measurement end of 2 passages and the startup of a startup timing module is empty
Contact, the startup idle contact is started using ground pin, is realized and is realized experiment Synchronization Control by the connection for starting idle contact；
The timing module 4, starts the control signal of idle contact to receive, and starts timing, by each channel measurement
The DC voltage arrived is recorded with starting the time of contact；Or when judging the first passage energization of multichannel pressing plate 2, start
Timing, measures voltage as the reference time using first Measurement channel and measures the time；It sends the time to main control module 1
Data；
The AD voltage samples module 3, the voltage analog signal of the multi-channel measurement pressing plate of reception is converted into electricity
Data signal is pressed, and inputs main control module 1；
The input module 6, sends input instruction, input instruction includes " test examination using button to main control module 1
Test ", " voltage measurement " " data are checked " and " parameter setting ", " testing experiment " instruction can input start measurement control instruction,
Carry out pressing plate voltage measurement and time measurement；" voltage measurement " instruction can input real-time voltage measurement instruction；" parameter setting " refers to
The settable instrument and equipment number of order, the calibration for measuring magnitude of voltage, triggered time and system time；" data are checked " instruction can start
Data look facility, to check the historical data of preservation；
The liquid crystal display 5, to show measurement result, the voltage measurement and triggering of 8 passages of interface display of liquid crystal display 5
Time of measuring；Show that " contact " then the outside dry contact of application starts time of measuring；" stopping " can be with during being tested
Stop experiment by pressing the selection.The interface of other 8 passage is switched to by " lower one page "；" preservation " preserves the examination of this experiment
Test data." removing " is removed this time experiment entrance and tested next time." exiting " is withdrawn into main interface.Carrying out experiment at this interface can
To trigger measurement, if respective channel has the magnitude of voltage measured during this display triggering of DC voltage and triggered time.If not yet
There is voltage triggered not show then.Measurement data and holding time by being stored in EPROM by measurement data by " preservation "；
The main control module 1, to receive the voltage digital signal of AD voltage samples module 3 and the time of timing module 4
Data, and by communication module 7 to host computer transmission data (not shown), and control the display information of liquid crystal display 5 and receive defeated
Enter the input instruction of module 6：
The communication module 7 is communicated with for main control module 1 with host computer, and text is PC host computers in the present embodiment, real
The data that now multivoltage tester is preserved upload to PC ends process and preserved and data analysis；
The power module 8 for main control module 1 to power, in the present embodiment, and the power module 8 is using civil power electricity
Net power supply.
Multivoltage tester of the present utility model has the advantages that：
1) the disposable action that voltage measurement and simulation protection are carried out to pressing plate, reduces the action frequency of protective relaying device
And the workload of relay protection personnel, shorten time between predetermined repairs；
2) measurement result and test data can be preserved in real time, and result of the test is clear and intuitive.
3) it can cross while being measured to pressing plate voltage, it is ensured that the correctness of result of the test.
Above-described embodiment only not limits the technical scheme described by the utility model to illustrate the utility model；Cause
This, is although this specification has been carried out detailed description to the utility model with reference to each above-mentioned embodiment, this area
It is to be appreciated by one skilled in the art that still can be modified to the utility model or equivalent substitution；And all are not departed from
The technical scheme of spirit and scope of the present utility model and its improvement, it all should cover in right of the present utility model
It is central.
Claims (1)
1. a kind of multivoltage tester, it is characterised in that include：Main control module, multi-channel measurement pressing plate, AD voltage sample moulds
Block, timing module, communication module, power module, input module and liquid crystal display；
The multi-channel measurement pressing plate includes the startup idle contact of at least measurement end of 2 passages and a startup timing module,
The startup idle contact is started using ground pin；
The timing module, starts the control signal of idle contact to receive, and starts timing；Or judge multichannel pressing plate
When first passage is powered, start timing；It sends time data to main control module；
The AD voltage samples module, the voltage analog signal of the multi-channel measurement pressing plate of reception is converted into voltage digital
Signal, and input main control module；
The input module, input instruction is sent using button to main control module；
The liquid crystal display, to show measurement result；
The main control module, to receive the voltage digital signal of AD voltage sample modules and the time data of timing module, and
Data are transmitted to host computer by communication module, and controls the display information of liquid crystal display and receives the input instruction of input module：
The communication module is communicated with for main control module with host computer；
The power module is to for master control module for power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720034012.5U CN206450749U (en) | 2017-01-11 | 2017-01-11 | A kind of multivoltage tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720034012.5U CN206450749U (en) | 2017-01-11 | 2017-01-11 | A kind of multivoltage tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206450749U true CN206450749U (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720034012.5U Active CN206450749U (en) | 2017-01-11 | 2017-01-11 | A kind of multivoltage tester |
Country Status (1)
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| CN (1) | CN206450749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333497A (en) * | 2017-11-28 | 2018-07-27 | 上海华力微电子有限公司 | A kind of method of chip testing |
-
2017
- 2017-01-11 CN CN201720034012.5U patent/CN206450749U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333497A (en) * | 2017-11-28 | 2018-07-27 | 上海华力微电子有限公司 | A kind of method of chip testing |
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