CN202384749U - Motor protection controller - Google Patents
Motor protection controller Download PDFInfo
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- CN202384749U CN202384749U CN2011205428366U CN201120542836U CN202384749U CN 202384749 U CN202384749 U CN 202384749U CN 2011205428366 U CN2011205428366 U CN 2011205428366U CN 201120542836 U CN201120542836 U CN 201120542836U CN 202384749 U CN202384749 U CN 202384749U
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Abstract
The utility model discloses a motor protection controller which comprises a control relay, and is characterized by further comprising a signal collection part, a data processing module, a separated type display module, a protective control module, a power supply module and a switch detection module connected with the data processing module, wherein the signal collection part comprises a current transformer and/or a voltage transformer, a signal amplifying circuit and an AD (analog-to-digital) switching circuit, signals collected by the current transformer and/or voltage transformer are isolated and transmitted to the AD switching circuit so as to be subjected to signal transformation after being amplified by the signal amplifying circuit; the data processing module receives data formed after signal transformation of the AD switching circuit, and processes the data; the separated type display module is communicated with the data processing module through a 485, and displays the result processed by the data processing module; and the protective control module is connected with the output interface of the data processing module, receives a control signal output by the data processing module and controls the motion of the control relay according to the control signal. The motor protection controller has the advantages of simplicity in installation, convenience for operation, high response speed, convenience for data centralized management, and convenience for date reading.
Description
Technical field
The utility model relates to a kind of motor protection controller.
Background technology
Motor protection controller is as part indispensable in the Electric Traction; Its use almost has been penetrated into each industry; The normal operation of motor protection controller has been played crucial effects to the safety of guaranteeing motor; At present motor protection controller many with high speed ARM core processor as controller; Can realize that high-speed sampling increases substantially certainty of measurement; Can measure multiple parameters of electric power such as the three phase electric machine three-phase voltage in when operation, three-phase current, leakage current, nearly all electrical faults such as the phase shortage of appearance when simultaneously three phase electric machine move, short circuit, stall, overload, current imbalance, electric leakage, overvoltage, under-voltage, underloading are carried out comprehensive monitoring and protection, and function is extremely powerful.Most in addition motor protecters possess remote communicating function, can realize that networking realizes that real-time online is kept watch on and control to multiple motors at host computer.
But the prior electric motor protector is mostly installed complicacy, inconvenient operation, and function is simple, and real-time is not strong, and is comprehensive inadequately to the defencive function of motor, and reading of data is also inconvenient, the management that is not easy to concentrate.
The utility model content
In order to overcome the shortcoming that above-mentioned prior art exists; The purpose of the utility model is to provide a kind of motor protection controller, and it installs simple, easy to operate, and response speed is fast; The kinds of protect mode can be set use simultaneously; Can comprehensively protect motor, be convenient to the centralized management of data, reading of data is convenient.
In order to address the above problem, the utility model adopts following technical scheme: this motor protection controller, comprise control relay, and comprising:
The signals collecting part comprises current transformer and/or voltage transformer, signal amplification circuit, A/D convertor circuit; Described current transformer and/or voltage transformer acquired signal are also isolated after transfer to described A/D convertor circuit after the amplification of described signal amplification circuit and are carried out conversion of signals;
Data processing module receives said A/D convertor circuit and carries out the data that form after the conversion of signals, and data are handled;
Split type display module is connected through 485 communications with said data processing module; Result after the video data processing module is handled;
The protection control module is connected with said data processing module output interface, receives control signal that data processing module exports and controls the action of said control relay according to said control signal;
Also comprise power module and the switch detection module that is connected with described data processing module.
Further technical scheme as the utility model:
In this motor protection controller, described power module is provided with the output of 3 road direct currents, is respectively 5V, 8V, 24V.
In this motor protection controller, said data processing module adopts 32 bit processors.
The beneficial effect of the utility model is: its signal acquisition part sub-headend adopts voltage, current transformer to isolate, and has guaranteed the internal circuit reliability of operation; A/D convertor circuit has guaranteed the precision of signal, and data processing equipment has suppressed the interference that the scene produces high order harmonic component owing to the complexity of load; Split type display module has made things convenient for the external displaying of data, and reading of data is convenient, and module is small and exquisite, and is easy for installation, easy to operate.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explanation:
Fig. 1 is the schematic block circuit diagram of the utility model embodiment.
Embodiment
As shown in Figure 1, this motor protection controller comprises control relay, comprising:
The signals collecting part comprises current transformer and/or voltage transformer, signal amplification circuit, A/D convertor circuit; Described current transformer and/or voltage transformer acquired signal are also isolated after transfer to described A/D convertor circuit after the amplification of described signal amplification circuit and are carried out conversion of signals; A/D convertor circuit carries out the successive approximation conversion to signal, has guaranteed the precision of signal;
Data processing module receives said A/D convertor circuit and carries out the data that form after the conversion of signals, and data are handled;
Split type display module is connected through 485 communications with said data processing module; Result after the video data processing module is handled;
The protection control module is connected with said data processing module output interface, receives control signal that data processing module exports and controls the action of said control relay according to said control signal;
Also comprise power module and the switch detection module that is connected with described data processing module.
In this motor protection controller, described power module is provided with the output of 3 road direct currents, is respectively 5V, 8V, 24V.The 5V power supply is used for internal data processing module, signal amplification circuit, the power supply of protection control module, and the 8V power supply is used for 485 communications power supply, and the 24V power supply is used for the control relay power supply.3 road power supplys are independent, and isolation voltage is greater than 1500V.
In this motor protection controller, said data processing module adopts 32 bit processors, samples with 64 points/cycle, and sampled point is carried out the quick computing of FFT Fourier, has suppressed the interference that the scene produces high order harmonic component owing to the complexity of load.
Claims (3)
1. motor protection controller comprises control relay, it is characterized in that, comprising:
The signals collecting part comprises current transformer and/or voltage transformer, signal amplification circuit, A/D convertor circuit; Described current transformer and/or voltage transformer acquired signal are also isolated after transfer to described A/D convertor circuit after the amplification of described signal amplification circuit and are carried out conversion of signals;
Data processing module receives said A/D convertor circuit and carries out the data that form after the conversion of signals, and data are handled;
Split type display module is connected through 485 communications with said data processing module; Result after the video data processing module is handled;
The protection control module is connected with said data processing module output interface, receives control signal that data processing module exports and controls the action of said control relay according to said control signal;
Also comprise power module and the switch detection module that is connected with described data processing module.
2. motor protection controller according to claim 1 is characterized in that: described power module is provided with the output of 3 road direct currents, is respectively 5V, 8V, 24V.
3. motor protection controller according to claim 1 is characterized in that: said data processing module adopts 32 bit processors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205428366U CN202384749U (en) | 2011-12-22 | 2011-12-22 | Motor protection controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205428366U CN202384749U (en) | 2011-12-22 | 2011-12-22 | Motor protection controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202384749U true CN202384749U (en) | 2012-08-15 |
Family
ID=46633223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205428366U Expired - Fee Related CN202384749U (en) | 2011-12-22 | 2011-12-22 | Motor protection controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202384749U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066563A (en) * | 2012-12-24 | 2013-04-24 | 安徽金捷光电科技有限公司 | Intelligent motor protector system |
| CN103869262A (en) * | 2014-03-24 | 2014-06-18 | 上海航天电子通讯设备研究所 | Measurement device of launch vehicle secondary electric power supply |
| CN106849012A (en) * | 2017-02-15 | 2017-06-13 | 南京越博动力***股份有限公司 | A kind of integrated protector for electric motor and its guard method based on singlechip technology |
-
2011
- 2011-12-22 CN CN2011205428366U patent/CN202384749U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066563A (en) * | 2012-12-24 | 2013-04-24 | 安徽金捷光电科技有限公司 | Intelligent motor protector system |
| CN103869262A (en) * | 2014-03-24 | 2014-06-18 | 上海航天电子通讯设备研究所 | Measurement device of launch vehicle secondary electric power supply |
| CN106849012A (en) * | 2017-02-15 | 2017-06-13 | 南京越博动力***股份有限公司 | A kind of integrated protector for electric motor and its guard method based on singlechip technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Xinluo Avenue high tech Zone of Ji'nan City, Shandong province 250101 No. 1166 orsus No. 1 building, 7 floor Patentee after: SHANDONG HEYUAN INTELLIGENT TECHNOLOGY CO., LTD. Address before: 250101 No. 2755, 1-204, 205 and 206, show Road, Ji'nan hi tech Zone, Shandong Patentee before: SHANDONG HEYUAN AUTOCONTROL TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Xinluo Avenue high tech Zone of Ji'nan City, Shandong province 250101 No. 1166 orsus No. 1 building, 7 floor Patentee after: And far intelligent Polytron Technologies Inc Address before: Xinluo Avenue high tech Zone of Ji'nan City, Shandong province 250101 No. 1166 orsus No. 1 building, 7 floor Patentee before: SHANDONG HEYUAN INTELLIGENT TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20201222 |