CN208780765U - A kind of power frequency characteristic tester - Google Patents
A kind of power frequency characteristic tester Download PDFInfo
- Publication number
- CN208780765U CN208780765U CN201821297894.5U CN201821297894U CN208780765U CN 208780765 U CN208780765 U CN 208780765U CN 201821297894 U CN201821297894 U CN 201821297894U CN 208780765 U CN208780765 U CN 208780765U
- Authority
- CN
- China
- Prior art keywords
- relay
- test
- capacitor
- chip microcontroller
- adjustable resistance
- 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.)
- Expired - Fee Related
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a kind of power frequency characteristic testers, including single-chip microcontroller, capacitor, power supply, adjustable resistance, volometer, green light, red light, buzzer, testing button and relay；The utility model structure is simple, easy to operate, uses safer；Volometer quickly can directly observe test voltage and electric current；By adjustable resistance, the adjusting to test electric current may be implemented, test scope is wider；The setting of red light, green light and buzzer can effectively inform whether tester's product is qualified.
Description
Technical field
The utility model relates to a kind of power frequency characteristic testers.
Background technique
The dedicated back-up protection device (SCB) of SPD is used as the emerging product of lightning protection industry, in actual production and Product Acceptance Review mistake
It needs to test the power frequency characteristic of SCB in journey, but structure is complicated for existing tester, using trouble, test scope is small, has
To in further improvement.
Utility model content
In view of the above-mentioned state of the art, the technical problem to be solved by the utility model is to provide a kind of structure letters
It is single, it is easy to operate, use safer, the broader power frequency characteristic tester of test scope.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of power frequency characteristic tester, including
Single-chip microcontroller, capacitor, power supply, adjustable resistance, volometer, green light, red light, buzzer, testing button and relay, feature
Be, the positive and negative anodes of the power supply are connected on two pins of capacitor, two pins of the capacitor also respectively with electricity
Two binding posts of volt-ammeter are connected；One end of the adjustable resistance is connected with one of pin of capacitor, described adjustable
The other end of resistance is connected by testing button with relay, and the relay is connected by conducting wire with the other end of capacitor, institute
It states relay and passes through conducting wire respectively and be connected with power supply and single-chip microcontroller, buzzer, green light and red light are connected with single-chip microcontroller；It is described after
Voltage test points are provided between electric appliance and testing button, the voltage test points are connected with single-chip microcontroller.
Preferably, A access point and B access point are provided in the relay module in the relay.
Compared with the prior art, the advantages of the utility model are: the utility model structure is simple, and it is easy to operate, only need
Wiring is completed, closure test switch can be tested；Though test success or unsuccessfully, can test point after relay from
Line interruption is opened, and test point AB is simultaneously switched off, and is used safer；Volometer quickly can directly observe test electricity
Pressure and electric current；By adjustable resistance, the adjusting to test electric current may be implemented, test scope is wider；Red light, green light and buzzer
Setting, can effectively inform whether tester's product qualified.
Detailed description of the invention
Fig. 1 is the structure principle chart of the utility model.
Specific embodiment
As shown in Figure 1, a kind of power frequency characteristic tester, including single-chip microcontroller, capacitor, power supply, adjustable resistance, voltage and current
Table, green light, red light, buzzer, testing button and relay；The positive and negative anodes of power supply are connected on two pins of capacitor,
Two pins of capacitor are also connected with two binding posts of volometer respectively；Wherein the one of one end of adjustable resistance and capacitor
A pin is connected, and the other end of adjustable resistance is connected by testing button with relay, and relay passes through the another of conducting wire and capacitor
One end is connected, and A access point and B access point are provided in the relay module in relay, and relay passes through conducting wire and electricity respectively
Source is connected with single-chip microcontroller, and buzzer, green light and red light are connected with single-chip microcontroller；Voltage is provided between relay and testing button
Test point, voltage test points are connected with single-chip microcontroller；A access point and B access point are two access points of SCB test, adjustable resistance
For the test electric current in adjusting circuit, volometer is used to test electric current in the voltage value and measurement route of power supply
Size, meter coil is a part of volometer gauge outfit, and the power circuit of power source internal can convert alternating current to directly
Galvanic electricity, to provide DC power supply to the control relay circuit in single-chip microcontroller, relay, the single-chip microcontroller in single-chip microcontroller controls electricity
Whether road can control the movement of green light, red light, buzzer, and control relay circuit is indirectly controlled, testing button is used for
Starting test, voltage test points are for detecting voltage value in route, to be used to control relay.
The course of work: it is shorted A, B access point, after route powers on, volometer can show supply voltage value, press survey
Button is tried, by adjusting adjustable resistance, the power frequency electric flow valuve in measurement circuit is adjusted, modulation requires point (such as 3A), after mixing up
A, B access point are disconnected, SCB is concatenated, presses testing button, start to test, voltage test points judge according to the voltage value detected
Route is connected, and single-chip microcontroller controls control relay circuit with closing relay, and starts timing, if product is qualified, then A, B connect
The SCB of access point point can want to disconnect (3S) in seeking time, this when, whether single-chip microcontroller can judge route according to test point voltage
It disconnects, if disconnecting, then product is qualified, and relay disconnects, green light, and rewiring can access survey to disconnection test switch again
Trial product；If product cannot disconnect at the appointed time, red light is bright, and buzzer sounding warning, relay disconnects；By above-mentioned
The detection of SCB power frequency characteristic may be implemented in process.
The dedicated back-up protection device (SCB) of SPD is used as the emerging product of lightning protection industry, in actual production and Product Acceptance Review mistake
It needs to test the power frequency characteristic of SCB in journey, but structure is complicated for existing tester, using trouble, test scope is small；This
Utility model structure is simple, easy to operate, need to only complete wiring, and closure test switch can be tested；No matter test success
Or failure, can open test point after relay from line interruption, and test point AB is simultaneously switched off, and is used safer；
Volometer quickly can directly observe test voltage and electric current；By adjustable resistance, the tune to test electric current may be implemented
Section, test scope are wider；The setting of red light, green light and buzzer can effectively inform whether tester's product is qualified.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of skill in the art that its according to
It is so possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is replaced on an equal basis
It changes；And these are modified or replaceed, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (2)
1. a kind of power frequency characteristic tester, including single-chip microcontroller, capacitor, power supply, adjustable resistance, volometer, green light, red light,
Buzzer, testing button and relay, which is characterized in that the positive and negative anodes of the power supply are connected to two pins of capacitor
On, two pins of the capacitor are also connected with two binding posts of volometer respectively；One end of the adjustable resistance with
One of pin of capacitor is connected, and the other end of the adjustable resistance is connected by testing button with relay, the relay
Device is connected by conducting wire with the other end of capacitor, and the relay passes through conducting wire respectively and is connected with power supply and single-chip microcontroller, buzzer,
Green light and red light are connected with single-chip microcontroller；Voltage test points are provided between the relay and testing button, the voltage is surveyed
Pilot is connected with single-chip microcontroller.
2. a kind of power frequency characteristic tester according to claim 1, which is characterized in that the relay mould in the relay
A access point and B access point are provided on block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821297894.5U CN208780765U (en) | 2018-08-13 | 2018-08-13 | A kind of power frequency characteristic tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821297894.5U CN208780765U (en) | 2018-08-13 | 2018-08-13 | A kind of power frequency characteristic tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208780765U true CN208780765U (en) | 2019-04-23 |
Family
ID=66156687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821297894.5U Expired - Fee Related CN208780765U (en) | 2018-08-13 | 2018-08-13 | A kind of power frequency characteristic tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208780765U (en) |
-
2018
- 2018-08-13 CN CN201821297894.5U patent/CN208780765U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190423 Termination date: 20210813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |