CN209373459U - A kind of pressure regulator reset system for the non-contact limit switch in laboratory - Google Patents
A kind of pressure regulator reset system for the non-contact limit switch in laboratory Download PDFInfo
- Publication number
- CN209373459U CN209373459U CN201822093047.3U CN201822093047U CN209373459U CN 209373459 U CN209373459 U CN 209373459U CN 201822093047 U CN201822093047 U CN 201822093047U CN 209373459 U CN209373459 U CN 209373459U
- Authority
- CN
- China
- Prior art keywords
- pressure regulator
- voltage
- control module
- voltage acquisition
- limit switch
- 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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Abstract
The utility model discloses a kind of pressure regulators for the non-contact limit switch in laboratory to reset system, including pressure regulator, frequency converter, voltage acquisition frequency control module, described pressure regulator one end is electrically connected to three phase mains, and the pressure regulator other end is electrically connected to transformer test product；The pressure regulator is also electrically connected with frequency converter, and voltage acquisition frequency control module is provided between the pressure regulator and transformer test product, and the pressure regulator includes pressure regulation motor；The voltage acquisition frequency control module controls the frequency of frequency converter according to sampled voltage with the numerical value comparison of target voltage, while voltage acquisition frequency control module reaches the regulation to voltage output by pressure regulation motor positive and inverse.The application structure is simple, and production cost is low, and installation is easy；While accurately and rapidly pressure regulator being made to reset simultaneously, increase the safety of equipment and personnel, extends the service life of pressure regulator and limit switch.
Description
Technical field
The utility model relates to field transformers, and in particular to a kind of pressure regulator for the non-contact limit switch in laboratory
Reset system.
Background technique
Current transformer test pressure regulator reseting procedure is all to limit exploitation by contact to reset, due to pressure regulator itself
Intrinsic characteristic, when pressure regulator can generate a backward voltage to pressure regulator after zero potential touches limit switch, this is reversed
Voltage would generally be relatively high, when test product can be easy to produce phenomenon of arc discharge in the instant high-voltage of power-off, to testing crew and test product
It brings great potential safety hazard.Secondly pressure regulator needs to contact every time limit switch, and the stroke distances of pressure regulator are longer, when reset
Between it is longer, efficiency is lower.Simultaneously because limit switch itself has certain service life, frequent switch will lead to its use
Service life shortens.
Utility model content
In view of the above-mentioned problems, the utility model is intended to provide after a kind of solution pressure regulator resets, resetting voltage is high, resets effect
Rate is low, limit switch service life shorten problem for the non-contact limit switch in laboratory pressure regulator reset system.
To realize that the technical purpose, the embodiment of the utility model be: a kind of tune for the non-contact limit switch in laboratory
Depressor resets system, including pressure regulator, frequency converter, voltage acquisition frequency control module, described pressure regulator one end are electrically connected to three
Phase power supply, the pressure regulator other end are electrically connected to transformer test product；
The pressure regulator is also electrically connected with frequency converter, and voltage acquisition change is provided between the pressure regulator and transformer test product
Frequency control module, the pressure regulator include pressure regulation motor；
The voltage acquisition frequency control module controls frequency converter with the numerical value comparison of target voltage according to sampled voltage
Frequency, while voltage acquisition frequency control module reaches the regulation to voltage output by pressure regulation motor positive and inverse.
The beneficial effects of the utility model, the application structure is simple, and production cost is low, and installation is easy；Simultaneously can it is accurate,
While quickly resetting pressure regulator, increase the safety of equipment and personnel, extends the use longevity of pressure regulator and limit switch
Life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the regulating and controlling voltage explanatory diagram of the utility model.
Specific embodiment
The utility model is described in further details in the following with reference to the drawings and specific embodiments.
As shown in Figs. 1-2, specific embodiment described in the utility model is a kind of for the non-contact limit switch in laboratory
Pressure regulator reset system, including pressure regulator 1, frequency converter 2, voltage acquisition frequency control module 3,1 one end of pressure regulator electricity
It is connected to three phase mains 4,1 other end of pressure regulator is electrically connected to transformer test product 5；
The pressure regulator 1 is also electrically connected with frequency converter 2, is provided with voltage between the pressure regulator 1 and transformer test product 5 and adopts
Collect frequency control module 3, the pressure regulator 1 includes pressure regulation motor 6.
Three phase mains is exported through pressure regulator and is powered to transformer test product, and voltage acquisition frequency control module samples pressure regulator is defeated
Voltage out, according to sampled voltage with the frequency of the numerical value comparison control frequency converter of target voltage, voltage acquisition frequency control mould
Block reaches the regulation to voltage output by pressure regulation motor positive and inverse, forms a pressure regulator voltage control closed loop.
Such as Fig. 2, when detecting regulator output voltage and being in the position in region (1), control pressure regulation motor is rotated forward, simultaneously
The output voltage for detecting pressure regulator stops pressure regulator when pressure regulator reaches pressure regulator safe voltage area.When detecting pressure regulator
When position in region (3), pressure regulation motor reversal is controlled, while detecting the output voltage of pressure regulator, is adjusted when pressure regulator reaches
Stop pressure regulator when depressor safe voltage area.When detecting pressure regulator and being in the position in region (2), pressure regulator has been in tune
Depressor voltage security area, without controlling the positive and negative rotation of pressure regulator.
The application structure is simple, and production cost is low, and installation is easy；Pressure regulator can be accurately and rapidly set to reset simultaneously
Meanwhile increasing the safety of equipment and personnel, extend the service life of pressure regulator and limit switch.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, all according to this
The technical spirit of utility model any trickle amendment, equivalent replacement and improvement to the above embodiments should be included in this
Within the protection scope of utility model technical solution.
Claims (1)
1. a kind of pressure regulator for the non-contact limit switch in laboratory resets system, it is characterised in that: including pressure regulator, frequency conversion
Device, voltage acquisition frequency control module, described pressure regulator one end are electrically connected to three phase mains, the pressure regulator other end electrical connection
To transformer test product；
The pressure regulator is also electrically connected with frequency converter, and voltage acquisition frequency conversion control is provided between the pressure regulator and transformer test product
Molding block, the interior pressure regulator includes pressure regulation motor；
The voltage acquisition frequency control module controls the frequency of frequency converter according to sampled voltage with the numerical value comparison of target voltage,
Voltage acquisition frequency control module reaches the regulation to voltage output by pressure regulation motor positive and inverse simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822093047.3U CN209373459U (en) | 2018-12-13 | 2018-12-13 | A kind of pressure regulator reset system for the non-contact limit switch in laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822093047.3U CN209373459U (en) | 2018-12-13 | 2018-12-13 | A kind of pressure regulator reset system for the non-contact limit switch in laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209373459U true CN209373459U (en) | 2019-09-10 |
Family
ID=67832556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822093047.3U Expired - Fee Related CN209373459U (en) | 2018-12-13 | 2018-12-13 | A kind of pressure regulator reset system for the non-contact limit switch in laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209373459U (en) |
-
2018
- 2018-12-13 CN CN201822093047.3U patent/CN209373459U/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: 20190910 Termination date: 20201213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |