CN201860091U - Multiloop low-voltage intelligent motor protection controller - Google Patents
Multiloop low-voltage intelligent motor protection controller Download PDFInfo
- Publication number
- CN201860091U CN201860091U CN2010206396550U CN201020639655U CN201860091U CN 201860091 U CN201860091 U CN 201860091U CN 2010206396550 U CN2010206396550 U CN 2010206396550U CN 201020639655 U CN201020639655 U CN 201020639655U CN 201860091 U CN201860091 U CN 201860091U
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- protection controller
- motor protection
- intelligent motor
- circuit
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- Control Of Multiple Motors (AREA)
- Control Of Electric Motors In General (AREA)
- Protection Of Generators And Motors (AREA)
Abstract
The utility model discloses a multiloop low-voltage intelligent motor protection controller, which comprises a sampling circuit unit, a DSP (digital signal processor) and a communication circuit which are sequentially connected with one another, wherein the DSP is connected with a loop switch quantity input circuit unit, a loop switch quantity output circuit unit and a display interface. The sampling circuit unit comprises a loop three-phase voltage and a multiloop current circuit unit; each switch quantity input circuit of the switch quantity input circuit unit comprises a loop alternating current contactor and a circuit breaker; and each switch quantity output current of the switch quantity output circuit unit comprises a loop starting relay and a fault relay. Therefore, the volume of the intelligent motor protection controller is reduced, the connection cable is reduced, the installation is convenient and the maintenance expense is saved.
Description
Technical field
The utility model relates to a kind of motor protection controller, particularly relates to a kind of multiloop low-voltage intelligent motor protection controller.
Background technology:
At present, use motor in a large number, particularly use intelligent electric machine protection controller in a large number in industries such as electric power, chemical industry, petrochemical industry, coals.The motor protection controller of prior art all is the corresponding motor of protection controller, i.e. pattern one to one.Each Electric Machine Control center MCC (abbreviation of English motorcontrol center) cupboard or network management system NMS (abbreviation of English NetworkManagement System) cupboard can have a plurality of drawers; loop of each drawer; distance between the loop is very near; each loop is connected with intelligent electric machine protection controller main body with a Trinity current transformer, makes intelligent electric machine protection controller price cheaper.But intelligent electric machine is in the market protected controller price height, volume is big, stube cable is many, and complexity and maintenance cost height are installed.
The utility model content:
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of multiloop low-voltage intelligent motor protection controller is provided, and has dwindled the volume of intelligent electric machine protection controller, has reduced stube cable, and is easy for installation, saves maintenance cost.
In order to achieve the above object; the technical solution adopted in the utility model is: a kind of multiloop low-voltage intelligent motor protection controller; form by interconnective sample circuit group, dsp processor and communicating circuit successively, on dsp processor, be connected with circuit switching amount input circuit group, circuit switching amount output circuit group and display interface.Each sample circuit of sample circuit group is made up of three road electric current and voltages and the loop current circuit bank of parallel connection, each loop current circuit of loop current circuit bank is made up of Trinity current transformer, each switching value input circuit of switching value input circuit group comprises loop A.C. contactor and circuit breaker, each switching value output current of switching value output circuit group comprises loop start relay and power transfer relay, and communicating circuit is RS485 interface, MODBUS, PROFIBUS communication interface or Ethernet.
Compared with prior art, the beneficial effects of the utility model are: the volume of intelligent electric machine protection controller has been dwindled in the design of circuit, has reduced stube cable, and is easy for installation, saves maintenance cost.
Description of drawings:
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment:
Purport of the present utility model is to overcome the deficiencies in the prior art, and a kind of multiloop low-voltage intelligent motor protection controller is provided, and has dwindled the volume of motor protection controller, has reduced cost.Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that technical characterictic of the present utility model and advantage are carried out more deep annotation.
Theory diagram of the present utility model as shown in Figure 1; a kind of multiloop low-voltage intelligent motor protection controller; form by interconnective sample circuit group, dsp processor and communicating circuit successively, on dsp processor, be connected with circuit switching amount input circuit group, circuit switching amount output circuit group and display interface.Each sample circuit of sample circuit group is made up of three road electric current and voltages and the loop current circuit bank of parallel connection, each loop current circuit of loop current circuit bank is made up of Trinity current transformer, each switching value input circuit of switching value input circuit group comprises loop A.C. contactor and circuit breaker, each switching value output current of switching value output circuit group comprises loop start relay and power transfer relay, and communicating circuit is RS485 circuit or Ethernet.
The sample circuit group is made up of loop A, a B, C three road potential circuits and the loop current circuit bank of parallel connection.Loop voltage is identical, only needs to gather a loop voltage, and voltage is transformed into light current to forceful electric power by voltage transformer and isolates.Each loop current circuit connects Trinity current transformer and intelligent electric machine protection controller main body by 6 core netting twines, and intelligent electric machine protection controller M main body has N crystal head, can be connected a measuring N loop current data with N current transformer.Current transformer is transformed into weakness to forceful electric power and isolates, and is input to dsp processor after the amplification of multichannel weak electric signal process amplified current, the filtering.Multiloop low-voltage intelligent motor protection controller main body carries DC power supply, and each way switch amount input signal of switching value input current group is isolated by isolating light Europe, sends into dsp processor.Dsp processor is controlled the motor start-stop by the output of the relay in the switch output circuit group.Display circuit is that LCD Chinese shows that 4 buttons are arranged, by LCD check motor status, fault message, parameter be set, the start-stop motor.Communicating circuit is RS485 interface, MODBUS, PROFIBUS communication interface or Ethernet.
Although the utility model has been made clear and complete description by instantiation to multiloop low-voltage intelligent motor protection controller; but the utility model is not limited only to described embodiment, and to reach identical purpose be contingent and all be included among the utility model by simple change.
Claims (6)
1. multiloop low-voltage intelligent motor protection controller; form by interconnective sample circuit group, dsp processor and communicating circuit successively, it is characterized in that: be connected with circuit switching amount input circuit group, circuit switching amount output circuit group and display interface on the dsp processor.
2. multiloop low-voltage intelligent motor protection controller according to claim 1 is characterized in that: the sample circuit of described multiloop low-voltage intelligent motor protection controller is made up of a loop three-phase voltage and multiloop current circuit group.
3. multiloop low-voltage intelligent motor protection controller according to claim 2 is characterized in that: each loop current circuit of the loop current circuit bank of described multiloop low-voltage intelligent motor protection controller is made up of Trinity current transformer.
4. multiloop low-voltage intelligent motor protection controller according to claim 3 is characterized in that: each switching value input circuit of the switching value input circuit group of described multiloop low-voltage intelligent motor protection controller comprises loop A.C. contactor and circuit breaker.
5. multiloop low-voltage intelligent motor protection controller according to claim 4 is characterized in that: each switching value output current of the switching value output circuit group of described multiloop low-voltage intelligent motor protection controller comprises loop start relay and power transfer relay.
6. multiloop low-voltage intelligent motor protection controller according to claim 5 is characterized in that: the communicating circuit of described multiloop low-voltage intelligent motor protection controller is RS485 interface, MODBUS, PROFIBUS communication interface or Ethernet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206396550U CN201860091U (en) | 2010-11-25 | 2010-11-25 | Multiloop low-voltage intelligent motor protection controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206396550U CN201860091U (en) | 2010-11-25 | 2010-11-25 | Multiloop low-voltage intelligent motor protection controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201860091U true CN201860091U (en) | 2011-06-08 |
Family
ID=44105890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206396550U Expired - Fee Related CN201860091U (en) | 2010-11-25 | 2010-11-25 | Multiloop low-voltage intelligent motor protection controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201860091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082413A (en) * | 2010-11-25 | 2011-06-01 | 广东雅达电子股份有限公司 | Multi-loop low-voltage intelligent motor protection controller and control method thereof |
| CN106849013A (en) * | 2017-02-17 | 2017-06-13 | 江苏嘉顿威尔电气有限公司 | Multi-function motor comprehensive control protector |
-
2010
- 2010-11-25 CN CN2010206396550U patent/CN201860091U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082413A (en) * | 2010-11-25 | 2011-06-01 | 广东雅达电子股份有限公司 | Multi-loop low-voltage intelligent motor protection controller and control method thereof |
| CN106849013A (en) * | 2017-02-17 | 2017-06-13 | 江苏嘉顿威尔电气有限公司 | Multi-function motor comprehensive control protector |
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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: 20110608 Termination date: 20191125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |