CN201243196Y - Intelligent control protection switch - Google Patents
Intelligent control protection switch Download PDFInfo
- Publication number
- CN201243196Y CN201243196Y CNU2008201416404U CN200820141640U CN201243196Y CN 201243196 Y CN201243196 Y CN 201243196Y CN U2008201416404 U CNU2008201416404 U CN U2008201416404U CN 200820141640 U CN200820141640 U CN 200820141640U CN 201243196 Y CN201243196 Y CN 201243196Y
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Abstract
The utility model relates to an intelligent control and protective switch, comprising a center processing unit, a control module, a power module, a communicating module, a display module, a keystoke and indication module, an external interface module, a contactor module and current transformators (L1, L2, L3); the center processing unit is respectively connected with the control module, the communicating module, the display module, the keystoke and indication module, the external interface module and the current transformators (L1, L2, L3), the control module is connected with the contactor module, the power module is respectively connected with the center processing unit, the control module, the communicating module, the display module, the keystoke and indication module and the external interface module; the intelligent control and protective switch has the beneficial effects that: the high performance of system components improves breaking capacity and rated service short-circuit breaking capacity, realizes stand-alone control and reduces the volume of the products; total power consumption is less than 2VA, voltaic arc is reduced, the service life of the switch is improved; the switch products integrate intellectualization, communicating and control techniques and have multiple protecting functions.
Description
Technical field
The utility model relates to a kind of Electric Machine Control, the intelligent control protection switch in particularly a kind of distribution system that is applied to protect 37kw and following three-phase AC asynchronous motor and 5kA.
Background technology
At present, in the existing Electric Machine Control protection system, generally all by circuit breaker, contactor, thermal relay even add that the time relay forms.Circuit breaker has only overcurrent protection function, and useful life is about 10,000 times; The contactor long service life, but do not have breaking capacity; The thermal relay defencive function is single, precision is low, action is unstable, and investigation finds, asynchronous machine more than 90% be stator winding because of crossing cause thermal damage, wherein nearly 60% because of open phase fault causes, this has illustrated that thermal relay is insecure as open phase protection.
Summary of the invention
In view of the deficiency that prior art exists, the intelligent control protection switch that the utility model provides a kind of can make multiple parameter detecting, have the kinds of protect function, multiple motor moves the field bus communication interface function of controlling and matching.
The technical scheme that the utility model is taked for achieving the above object is: intelligent control protection switch; comprise center processing unit; control module; power module; communication module; display module; button and indicating module; external interface module; the contactor module; current transformer (L1; L2; L3); it is characterized in that: described center processing unit respectively with control module; communication module; display module; button and indicating module; external interface module; current transformer (L1; L2; L3) connect; described control module is connected with the contactor module, described power module respectively with center processing unit; control module; communication module; display module; button and indicating module; external interface module connects.
The beneficial effects of the utility model are:
1. the high-performance of system's components and parts; The HCPS1 series switch adopts the dspic high speed processor, and energy connection, carrying, breaking current 16Ie, short circuit instantaneous protection improve breaking capacity, specified operation short circuit breaking capacity 5KA, specified limit short circuit breaking capacity 10KA less than 10ms.
2. the high reliability of Switch main body and annex; Replace multiple components and parts such as conventional circuit breaker, contactor, thermal relay, realize unit control, system reliability greatly improves.
3. further reduced the volume of product; Change the conventional arrangement mode of multicomponent tandem compound, on installing space, reduced 50%.
4. energy-conservation environmental protection; Total power consumption keeps power 32VA to reduce greatly less than 2VA than original contactor pull-in winding after the HCPS1-63 adhesive.
5. improved the useful life of components and parts; Phase breaking technology at zero point during the HCPS1 series switch adopts has reduced the impact to electrical network greatly.And guarantee each disjunction three-phase current not on peak value, reduce electric arc, the life-span of having improved switch.
6. but the switch product is integrated intelligent communication and control technology; Have the kinds of protect function, carry out Long-distance Control by 485 interfaces, the user can carry out real-time monitoring and control by the ModBus bus to equipment at any time, for the client has reserved enough performance spaces in the design of automation more from now on.The remote-control operation interface that product is reserved, the user can cause it panel and also can finish the control of equipment ground, and the user need not strictly consider the size of distribution cabinet like this.
Description of drawings
Fig. 1 is that circuit of the present utility model connects block diagram and as Figure of abstract.
Embodiment
As shown in Figure 1; intelligent control protection switch; comprise center processing unit; control module; power module; communication module; display module; button and indicating module; external interface module; the contactor module; current transformer (L1; L2; L3); center processing unit respectively with control module; communication module; display module; button and indicating module; external interface module; current transformer (L1; L2; L3) connect; control module is connected with the contactor module, power module respectively with center processing unit; control module; communication module; display module; button and indicating module; external interface module connects.
Above-mentioned central processing module comprises current signal collection, phase sequence signals collecting, signal processing circuit and signal output.
Signal transmission between the circuit: push button signalling, current signal input, phase sequence input signal are through after the signal processing circuit, entering central microprocessor handles, signal after the processing outputs to each several part output module (liquid crystal, indicator light, buzzer) or to memory cell EEPROM storage, drives electromagnetic mechanism simultaneously and come execution; Data and display module, Modbus bus that central microprocessor is handled pass mutually.
Operation principle: this product is monitored three-phase (U, V, W) electric current by real-time and effective, realizes various prediction phenomenons in the circuit are handled fast and effectively.
Gather the signal of L1, L2, three instrument transformers of L3 and the current value in the shortest Time Calculation outlet fast and effectively by center processing unit.When current value during in the scope of setting greater than the user, the situation that the root a tree name is different, central processing unit is taked different processing, drives the contactor module by control circuit and moves.
1. start: at this moment electric current is very big, but by the analysis of center processing unit to information-setting by user, and the big electric current when starting of distinguishing that can be clear and definite does not process.If but the phenomenon that is short-circuited is then done disjunction immediately and is handled.
2. overload: at this moment electric current is obviously greater than user's rated current.Center processing unit is done respective handling according to the inverse time lag curve very accurately by the monitoring meeting to three-phase current.If reach the disjunction condition, center processing unit can send effective instruction to control unit, makes KC finish circuit " zero passage " disjunction (the zero passage disjunction is the effective protection to contactor, with abundant prolongation its useful life) more accurately.
3. limit disjunction: when circuit any was short-circuited mutually, center processing unit can be finished disjunction in the fastest time (10mS), reach the function of effective protection.
The utility model detected parameters comprises: A phase current, B phase current, C phase current, average current, phase sequence, switch number of times.
The utility model defencive function comprises: the overtime protection of electric motor starting, overload protection, open circuit protection, open phase protection, phase sequence, unbalance protection of three-phase current.
The utility model controlled function comprises: starting control, stop control, promptly stop control, across-the-line starting control, reversible electric machine control, double-speed motor control, star-triangle starting control, auto-induction voltage-reduced starting control, resistance reduced voltage starting and control.
Claims (1)
1; a kind of intelligent control protection switch; comprise center processing unit; control module; power module; communication module; display module; button and indicating module; external interface module; the contactor module; current transformer (L1; L2; L3); it is characterized in that: described center processing unit respectively with control module; communication module; display module; button and indicating module; external interface module; current transformer (L1; L2; L3) connect; described control module is connected with the contactor module, described power module respectively with center processing unit; control module; communication module; display module; button and indicating module; external interface module connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201416404U CN201243196Y (en) | 2008-08-18 | 2008-08-18 | Intelligent control protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201416404U CN201243196Y (en) | 2008-08-18 | 2008-08-18 | Intelligent control protection switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201243196Y true CN201243196Y (en) | 2009-05-20 |
Family
ID=40716490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201416404U Expired - Fee Related CN201243196Y (en) | 2008-08-18 | 2008-08-18 | Intelligent control protection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201243196Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882780A (en) * | 2010-06-28 | 2010-11-10 | 中国西电电气股份有限公司 | Intelligent control module for energy storage motor of tank circuit breaker |
| CN106786407A (en) * | 2016-12-13 | 2017-05-31 | 天津白璐科技发展有限公司 | Can communication intelligent control protection switch |
-
2008
- 2008-08-18 CN CNU2008201416404U patent/CN201243196Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882780A (en) * | 2010-06-28 | 2010-11-10 | 中国西电电气股份有限公司 | Intelligent control module for energy storage motor of tank circuit breaker |
| CN101882780B (en) * | 2010-06-28 | 2013-04-10 | 中国西电电气股份有限公司 | Intelligent control module for energy storage motor of tank circuit breaker |
| CN106786407A (en) * | 2016-12-13 | 2017-05-31 | 天津白璐科技发展有限公司 | Can communication intelligent control protection switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20120818 |