CN201270410Y - Motor protecting controller - Google Patents
Motor protecting controller Download PDFInfo
- Publication number
- CN201270410Y CN201270410Y CNU2008201869334U CN200820186933U CN201270410Y CN 201270410 Y CN201270410 Y CN 201270410Y CN U2008201869334 U CNU2008201869334 U CN U2008201869334U CN 200820186933 U CN200820186933 U CN 200820186933U CN 201270410 Y CN201270410 Y CN 201270410Y
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- board
- power supply
- interface
- input
- output
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Abstract
The utility model discloses an electric motor protection controller, which comprises an interface board, an input amount input output board, a master board, a power supply/CT mutual inductor board and a display board, wherein the interface board supports a CAN bus and an RS485 bus communication interface, the input amount input and output board realizes the input and output of the input amount and the voltage input function, the master board is connected with the interface board, the input amount input output board, the power supply/CT mutual inductor board and the display board, the master board can realize the input and output, the power supply interface and the communication interface through D S P, the power supply/ CT mutual inductor board can provide a power supply, a CT mutual inductor can realize the conditioning and exchange of current and voltage, and the display board controls a liquid crystal to display the communication with a body module.
Description
Technical field
The utility model relates to the controller in electric power and the industrial automation system; specifically, relate to a kind of MPD100 motor protection controller, it aims at middle-size and small-size motor protection exploitation; be applicable to and exchange 50Hz, the following alternating current motor of rated voltage 380V-690V, rated current 500A.
Background technology
Power industry is the basic industries that involve the interests of the state and the people, China's capacity of installed generator and energy output Jun Ju second place of the world.Along with installed capacity increases, more and more high to the reliability requirement of electric equipment and electrical network, require power industry to develop in advance.Although the existing very great development of power industry, the short of electricity phenomenon is still relatively more serious.The subject matter of current existence is: power grid construction lags behind the power supply construction, city net distribution scarce capacity, and power supply reliability is not high.Because to the raising that power supply reliability requires, high-voltage switch electric appliance is had higher requirement: high-tension switch electrical equipment is carrying out technological revolution, moves towards intellectualized technology from conventional art.
Along with development of electric power industry and development of computer, the user is more and more higher to the fail safe of electric power system, reliability, maintainable requirement.Adopt the limitation of the secondary device that traditional protection and observing and controlling separates more and more obvious, and on function, more and more be difficult to satisfy actual needs.Along with the high speed development of social economy and science and technology, urban and rural power grids have proposed more and more higher requirement to the supply of electrical energy of high-quality, high reliability.Progressively realize power distribution automation, electrification, the intellectuality of urban and rural power grids, with electric energy and the power supply reliability that improves whole distribution system, its social benefit and economic benefit all are very tangible.And as power distribution automation the core---microcomputer protecting device is developed rapidly.
The utility model content
At the problem that occurs in the prior art, the purpose of this utility model is by the contactor in the operation alternating current motor control loop, realizes the motor start-stop operation, supports multiple start mode, and is protected at the various faults that motor is prone to; Highly integrated, integrate multiple functions such as protection, measurement, control, monitoring, communication, record ripple, logout.Its technical scheme is:
A kind of motor protection controller comprises interface board, switching value input/output board, mainboard, power supply/CT instrument transformer plate, display panel, it is characterized in that, interface board is supported CAN bus and RS485 bus communication interface; The switching value input/output board is realized switching value input, output and voltage input function; Mainboard links to each other with interface board, switching value input/output board, power supply/CT instrument transformer plate, display panel, mainboard by DSP realize opening into leave, power interface, communication interface; Power supply/CT instrument transformer plate provides power supply, and the CT instrument transformer is realized conditioning, the conversion of current/voltage; Display panel control liquid crystal display and and body module between communication.
The beneficial effects of the utility model:
The utility model aims at middle-size and small-size motor protection exploitation, and defencive function is perfect, the cost performance height.The structural design exquisiteness, convenient and flexible installation is applicable in low voltage control terminal MCC cabinet or 1/4 modulus and the above various drawout cubicle, guide rail and screw install all can, extremely strong to installation environment adaptability.Adopt modularized design, improved production technology, be convenient to a large amount of productions, reduce cost, improve product market share.
Description of drawings
Fig. 1 is the structured flowchart of the utility model embodiment.
Embodiment
Below by specific embodiment the technical solution of the utility model is described further.
As shown in Figure 1, a kind of motor protection controller of present embodiment,
The composition of device hardware:
This device is the core with the mainboard, and circuit board can be divided into 5: interface board, switching value input/output board, mainboard, power supply/CT instrument transformer plate, display panel.Interface board is mainly realized the communication interface function; The switching value input/output board is mainly realized switching value input, output and voltage input function; Mainboard mainly by DSP realize opening into leave, power interface, communication interface etc., finish the major function of MPD100; Power supply/CT instrument transformer plate provides power supply, and the CT instrument transformer is realized conditioning, the conversion of current/voltage; Display panel control liquid crystal display and and body module between communication.
Hardware groundwork principle:
Being transformed into weak electric signal from the voltage and current of electrical network primary equipment through voltage current transformer, carrying out signal condition through operational amplifier, is the corresponding digital amount by the AD sample conversion of DSP, again by DSP handle, computing obtains the correspondent voltage current value; DSP gathers all opening into amount signal (as contactor state, short-circuiting device state) simultaneously, and obtain operational order by communication with display module/host computer, after treated, the computing, send corresponding breaker tripping and closing signal and alarm signal to the driving interface circuit, drive circuit is delivered to relay board with these signals, the breaker tripping and closing relay contact of relay board is connected the closing loop of contactor, and the alarm signal relay is connected the alarm loop.The measured value of various signals, protection operating value, fixed value adjusting all show by LCD, LED and operate by keyboard.
The communication interface of isolating by photoelectricity can carry out distant place communication, can realize remote measurement, remote signalling, remote control, remote regulating function, and adjust in the distant place that can realize definite value and inquiry, Remote protection are thrown and function such as moved back.
Controller is made up of four parts: body module, display operation module, instrument transformer module and expansion module.Controller body and instrument transformer module are essential module, and both can independent operating.Display module is as showing and the relevant supplementary module that is operating as controller, not necessarily; Expansion module provides output of two-way analog quantity and motor temperature-sensitive resistance detection, just needs expansion module when the needs function corresponding.
Display module with at the scene with the supporting one to one use of body module; by display module can browsing controller metrical information, warning message, fault message; also can carry out parameter setting and the change of protection definite value, and the control operation of motor (as starting, parking etc.).
Though the utility model with preferred embodiment openly as above; but they are not to be used for limiting the utility model; anyly have the knack of this skill person; in the spirit and scope that do not break away from the utility model; can do various variations or retouching from working as, what therefore protection range of the present utility model should be defined with the application's claim protection range is as the criterion.
Claims (1)
1, a kind of motor protection controller comprises interface board, switching value input/output board, mainboard, power supply/CT instrument transformer plate, display panel, it is characterized in that, interface board is supported CAN bus and RS485 bus communication interface; The switching value input/output board is realized switching value input, output and voltage input function; Mainboard links to each other with interface board, switching value input/output board, power supply/CT instrument transformer plate, display panel, mainboard by DSP realize opening into leave, power interface, communication interface; Power supply/CT instrument transformer plate provides power supply, and the CT instrument transformer is realized conditioning, the conversion of current/voltage; Display panel control liquid crystal display and and body module between communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201869334U CN201270410Y (en) | 2008-09-12 | 2008-09-12 | Motor protecting controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201869334U CN201270410Y (en) | 2008-09-12 | 2008-09-12 | Motor protecting controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201270410Y true CN201270410Y (en) | 2009-07-08 |
Family
ID=40843020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201869334U Expired - Fee Related CN201270410Y (en) | 2008-09-12 | 2008-09-12 | Motor protecting controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201270410Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957381A (en) * | 2012-12-11 | 2013-03-06 | 丹东华通测控有限公司 | Motor running management device |
| CN103116347A (en) * | 2013-03-11 | 2013-05-22 | 南京因泰莱电器股份有限公司 | Extension method of input and output |
| CN114583660A (en) * | 2021-12-07 | 2022-06-03 | 江苏金智科技股份有限公司 | Motor relay protection device and method for belt conveyor scratch fault protection |
-
2008
- 2008-09-12 CN CNU2008201869334U patent/CN201270410Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957381A (en) * | 2012-12-11 | 2013-03-06 | 丹东华通测控有限公司 | Motor running management device |
| CN103116347A (en) * | 2013-03-11 | 2013-05-22 | 南京因泰莱电器股份有限公司 | Extension method of input and output |
| CN103116347B (en) * | 2013-03-11 | 2015-08-19 | 南京因泰莱电器股份有限公司 | A kind of input and output extended method |
| CN114583660A (en) * | 2021-12-07 | 2022-06-03 | 江苏金智科技股份有限公司 | Motor relay protection device and method for belt conveyor scratch fault protection |
| CN114583660B (en) * | 2021-12-07 | 2023-12-26 | 江苏金智科技股份有限公司 | Motor relay protection device and method for belt conveyor scratch fault protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20160912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |