CN109799390A - A kind of breaking-closing operating coil D.C. resistance intelligent device for measuring - Google Patents
A kind of breaking-closing operating coil D.C. resistance intelligent device for measuring Download PDFInfo
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- CN109799390A CN109799390A CN201811636177.5A CN201811636177A CN109799390A CN 109799390 A CN109799390 A CN 109799390A CN 201811636177 A CN201811636177 A CN 201811636177A CN 109799390 A CN109799390 A CN 109799390A
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Abstract
The present invention provides a kind of breaking-closing operating coil D.C. resistance intelligent device for measuring, the output end of Power Entry Module is connect with the input terminal of the input terminal of Switching Power Supply and accessory power supply respectively, the output end of Switching Power Supply is connect with constant current output module, the output end of constant current output module is connect with the input terminal of the input terminal of coil resistance measurement module and current sampling module respectively, the output end of coil resistance measurement module is connect with the input terminal of voltage sample module, the output end of current sampling module is connect with the input terminal of A/D conversion module, the output end of voltage sample module is connect with the input terminal of A/D conversion module, the output end of A/D conversion module and the input terminal of controller connect, the output end of accessory power supply and the input terminal of controller connect.The present invention, which realizes, does not tear panel measuring operation coil resistance open, avoids due to opening the panel bring person and equipment safety hidden danger, brings convenience to on-the-spot test work, improve work efficiency.
Description
Technical field
The present invention relates to the technical field of power measurement device more particularly to a kind of breaking-closing operating coil D.C. resistance intelligence
It is capable of measuring device.
Background technique
The D.C. resistance of the switching on and off operation coil of high-voltage switch gear, is able to reflect out the Motor ability of high-voltage switch gear, directly
Can high-voltage switch gear be influenced action message.Therefore, the D.C. resistance to operation coil is needed to measure when routine test.By
In operating the electronic components such as bridge heap, metal-oxide-semiconductor of having connected in secondary circuit, causing can not be direct with multimeter in external terminal block
Measurement.Existing electric resistance measuring apparatus safety is low, and measurement efficiency is low, is unable to satisfy demand in actual work, so needing
A kind of breaking-closing operating coil D.C. resistance intelligent device for measuring is developed to solve the problems of the prior art.
Summary of the invention
The purpose of the present invention is to provide a kind of breaking-closing operating coil D.C. resistance intelligent device for measuring, realize and do not tear open
Panel measuring operates coil resistance, avoids due to opening the panel bring person and equipment safety hidden danger, gives on-the-spot test work
Convenience is brought, is improved work efficiency.
In order to achieve the above object, the present invention adopts the following technical scheme: a kind of breaking-closing operating coil D.C. resistance intelligence
It is capable of measuring device, including Power Entry Module, Switching Power Supply, accessory power supply, constant current output module, coil resistance measurement module,
Voltage sample module, current sampling module, A/D conversion module and controller, the output end of the Power Entry Module respectively with
The input terminal connection of the input terminal and accessory power supply of Switching Power Supply, the output end and constant current output module of the Switching Power Supply connect
It connects, the output end of the constant current output module is defeated with the input terminal of coil resistance measurement module and current sampling module respectively
Enter end connection, the output end of the coil resistance measurement module is connect with the input terminal of voltage sample module, the current sample
The output end of module is connect with the input terminal of A/D conversion module, output end and the A/D conversion module of the voltage sample module
The input terminal of input terminal connection, the output end of the A/D conversion module and controller connects, the output end of the accessory power supply with
The input terminal of controller connects.
Further, the Power Entry Module is 220V AC power source.
Further, the voltage of the Switching Power Supply is 30V, and the electric current of Switching Power Supply is 1A.
Further, the voltage of the accessory power supply is 5V, and the electric current of accessory power supply is 1A.
Further, the coil resistance measurement module is made of first resistor and inductance coil, the constant current output mould
Block managed by MOSFET, second resistance and regulator tube group at.
Further, 3rd resistor, the 3rd resistor are equipped between the coil resistance measurement module and Switching Power Supply
It is equipped with voltage signal measurement point between first resistor, the is equipped between the coil resistance measurement module and constant current output module
Four resistance are equipped with current signal measurement point between the 4th resistance and MOSFET pipe.
After adopting the above technical scheme, the present invention has the advantage that power supply output module generation two-way power supply, is all the way
The measurement power supply i.e. Switching Power Supply of 30V/1A is the accessory power supply of 5V/1A, accessory power supply supply controller and correlation all the way
On the one hand circuit work, the 0.5A constant current output mode that constant current output module is designed by Switching Power Supply avoid external short circuit from causing
The damage of measuring circuit, on the other hand constant output electric current, highly beneficial to the measurement of resistance loop, and measurement can be improved
Accuracy and stability, by A/D converter, simulation are believed by measuring the electric current in circuit and the voltage at coil resistance both ends
Number digital signal is converted to, then is calculated by controller, obtains the DC resistance of operation coil.The present apparatus is according to secondary returning
The characteristics of road, takes different measurement methods for different mode, realizes and do not tear panel open, so that it may directly on external terminal
Measuring coil resistance.MOSFET pipe, second resistance and the regulator tube group of Switching Power Supply are at constant-current circuit, when measurement terminates to operation
When coil both ends, electric current flows through circuit, generates pressure drop on the 4th resistance, is used for sampled current signals, while output end can be adopted
Sample to operation coil both ends voltage signal.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is a kind of structural schematic diagram of breaking-closing operating coil D.C. resistance intelligent device for measuring proposed by the present invention；
Fig. 2 is a kind of signal acquisition control of breaking-closing operating coil D.C. resistance intelligent device for measuring proposed by the present invention
Circuit diagram；
Fig. 3 is that a kind of signal of breaking-closing operating coil D.C. resistance intelligent device for measuring proposed by the present invention transmits control
Circuit diagram.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.It is to be appreciated that following "upper",
Indicating positions or the position such as "lower", "left", "right", " longitudinal direction ", " transverse direction ", "inner", "outside", "vertical", "horizontal", "top", "bottom"
The word for setting relationship is based only upon orientation or positional relationship shown in the drawings, only for the purposes of the description present invention and simplifies description, and
It is not that device/element of indication or suggestion meaning must have a particular orientation or be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.
As shown in Figure 1, a kind of breaking-closing operating coil D.C. resistance intelligent device for measuring provided by the invention, including power supply
Input module, Switching Power Supply, accessory power supply, constant current output module, coil resistance measurement module, voltage sample module, electric current are adopted
Egf block, A/D conversion module and controller, the output end of the Power Entry Module respectively with the input terminal of Switching Power Supply and
The input terminal of accessory power supply connects, and the output end of the Switching Power Supply is connect with constant current output module, the constant current output module
Output end connect respectively with the input terminal of the input terminal of coil resistance measurement module and current sampling module, coil electricity
The output end of resistance measurement module is connect with the input terminal of voltage sample module, and the output end and A/D of the current sampling module turn
The input terminal connection of block is changed the mold, the output end of the voltage sample module is connect with the input terminal of A/D conversion module, the A/D
The output end of conversion module and the input terminal of controller connect, and the output end of the accessory power supply and the input terminal of controller connect
It connects,.Power supply output module generates two-way power supply, is the measurement power supply i.e. Switching Power Supply of 30V/1A all the way, is 5V/1A all the way
Accessory power supply, accessory power supply supply controller and interlock circuit work, the 0.5A that constant current output module is designed by Switching Power Supply
On the one hand constant current output mode avoids external short circuit from causing the damage of measuring circuit, on the other hand constant output electric current, to electricity
The measurement for hindering circuit is highly beneficial, and the accuracy and stability of measurement can be improved, by the electric current and coil electricity that measure circuit
The voltage at resistance both ends converts analog signals into digital signal by A/D converter, then is calculated by controller, is grasped
Make the DC resistance of coil.The characteristics of present apparatus is according to secondary circuit takes different measurement methods for different mode, real
Show and do not torn panel open, so that it may the measuring coil resistance directly on external terminal.
In the present embodiment, the Power Entry Module is 220V AC power source.
In the present embodiment, the voltage of the Switching Power Supply is 30V, and the electric current of Switching Power Supply is 1A.
In the present embodiment, the voltage of the accessory power supply is 5V, and the electric current of accessory power supply is 1A.
As shown in Fig. 2, the coil resistance measurement module is made of first resistor R1 and inductance coil L1, the constant current is defeated
Module is made of MOSFET pipe 101, second resistance R4 and voltage-stabiliser tube 102 out, the coil resistance measurement module and Switching Power Supply
Between be equipped with 3rd resistor R2, between the 3rd resistor R2 and first resistor R1 be equipped with voltage signal measurement point 201, the line
Enclose and be equipped with the 4th resistance R3 between resistance measuring module and constant current output module, the 4th resistance R3 and MOSFET pipe 101 it
Between be equipped with current signal measurement point 202.MOSFET pipe 101, second resistance R4 and the voltage-stabiliser tube 102 of Switching Power Supply form Constant Electric Current
Road, when measurement terminates to operation lines circle both ends, electric current flows through circuit, pressure drop is generated on the 4th resistance R3, for sampling electricity
Signal is flowed, while output end can sample and operate the voltage signal at coil both ends.
As shown in figure 3, the voltage signal SV of voltage signal measurement point 201 and the current signal of current signal measurement point 202
SI is respectively enterd by the current sample channel formed amplifier U1, A/D converter U3 and is made of amplifier U5, U6, A/D converter U4
Voltage sample channel.Data after conversion, by by SDA, SCK and CS signal line group at spi bus be sent to controller
It is calculated.The present apparatus realize does not tear open panel measuring operation coil resistance, avoid due to open the panel bring person and
Equipment safety hidden danger brings convenience to on-the-spot test work, improves work efficiency.
In addition to above preferred embodiment, there are other embodiments of the invention, and those skilled in the art can be according to this
Invention makes various changes and modifications, and as long as it does not depart from the spirit of the invention, should belong to appended claims of the present invention and determines
The range of justice.
Claims (6)
1. a kind of breaking-closing operating coil D.C. resistance intelligent device for measuring, which is characterized in that including Power Entry Module, switch
Power supply, accessory power supply, constant current output module, coil resistance measurement module, voltage sample module, current sampling module, A/D conversion
Module and controller, the input with the input terminal of Switching Power Supply and accessory power supply respectively of the output end of the Power Entry Module
End connection, the output end of the Switching Power Supply connect with constant current output module, the output end of the constant current output module respectively with
The input terminal of coil resistance measurement module and the connection of the input terminal of current sampling module, the coil resistance measurement module it is defeated
Outlet is connect with the input terminal of voltage sample module, the output end of the current sampling module and the input terminal of A/D conversion module
Connection, the output end of the voltage sample module are connect with the input terminal of A/D conversion module, the output of the A/D conversion module
End is connect with the input terminal of controller, and the output end of the accessory power supply and the input terminal of controller connect.
2. breaking-closing operating coil D.C. resistance intelligent device for measuring according to claim 1, which is characterized in that the electricity
Source input module is 220V AC power source.
3. breaking-closing operating coil D.C. resistance intelligent device for measuring according to claim 2, which is characterized in that described to open
The voltage in powered-down source is 30V, and the electric current of Switching Power Supply is 1A.
4. breaking-closing operating coil D.C. resistance intelligent device for measuring according to claim 1, which is characterized in that described auxiliary
The voltage for helping power supply is 5V, and the electric current of accessory power supply is 1A.
5. breaking-closing operating coil D.C. resistance intelligent device for measuring according to claim 1, which is characterized in that the line
Circle resistance measuring module be made of first resistor and inductance coil, the constant current output module by MOSFET manage, second resistance and
Regulator tube group at.
6. breaking-closing operating coil D.C. resistance intelligent device for measuring according to claim 5, which is characterized in that the line
It encloses and is equipped with 3rd resistor between resistance measuring module and Switching Power Supply, voltage is equipped between the 3rd resistor and first resistor and is believed
Number measurement point, is equipped with the 4th resistance between the coil resistance measurement module and constant current output module, the 4th resistance with
Current signal measurement point is equipped between MOSFET pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636177.5A CN109799390A (en) | 2018-12-29 | 2018-12-29 | A kind of breaking-closing operating coil D.C. resistance intelligent device for measuring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636177.5A CN109799390A (en) | 2018-12-29 | 2018-12-29 | A kind of breaking-closing operating coil D.C. resistance intelligent device for measuring |
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| CN109799390A true CN109799390A (en) | 2019-05-24 |
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| CN201811636177.5A Pending CN109799390A (en) | 2018-12-29 | 2018-12-29 | A kind of breaking-closing operating coil D.C. resistance intelligent device for measuring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751639A (en) * | 2020-05-14 | 2020-10-09 | 广西电网有限责任公司电力科学研究院 | Secondary circuit measuring device for high-voltage circuit breaker |
Citations (4)
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| CN202383206U (en) * | 2011-12-23 | 2012-08-15 | 湖北易瓦特科技有限公司 | Direct-current resistance tester of transformer |
| CN105403772A (en) * | 2015-10-30 | 2016-03-16 | 芜湖市振华戎科智能科技有限公司 | Transformer DC resistance testing device |
| CN206114775U (en) * | 2016-10-10 | 2017-04-19 | 保定朗信电子科技有限公司 | Multi -functional DC resistance measuring appearance |
| CN108226645A (en) * | 2018-01-03 | 2018-06-29 | 宁波送变电建设有限公司 | A kind of vacuum circuit breaker divide-shut brake coil direct current resistance m easurem ent device |
-
2018
- 2018-12-29 CN CN201811636177.5A patent/CN109799390A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202383206U (en) * | 2011-12-23 | 2012-08-15 | 湖北易瓦特科技有限公司 | Direct-current resistance tester of transformer |
| CN105403772A (en) * | 2015-10-30 | 2016-03-16 | 芜湖市振华戎科智能科技有限公司 | Transformer DC resistance testing device |
| CN206114775U (en) * | 2016-10-10 | 2017-04-19 | 保定朗信电子科技有限公司 | Multi -functional DC resistance measuring appearance |
| CN108226645A (en) * | 2018-01-03 | 2018-06-29 | 宁波送变电建设有限公司 | A kind of vacuum circuit breaker divide-shut brake coil direct current resistance m easurem ent device |
Non-Patent Citations (1)
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| 邓涛等: "真空断路器分合闸线圈电阻测量装置的研制与应用", 《浙江电力》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751639A (en) * | 2020-05-14 | 2020-10-09 | 广西电网有限责任公司电力科学研究院 | Secondary circuit measuring device for high-voltage circuit breaker |
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Application publication date: 20190524 |