CN201690394U - Self coupling reduced voltage starter of electric motor - Google Patents
Self coupling reduced voltage starter of electric motor Download PDFInfo
- Publication number
- CN201690394U CN201690394U CN2009202871675U CN200920287167U CN201690394U CN 201690394 U CN201690394 U CN 201690394U CN 2009202871675 U CN2009202871675 U CN 2009202871675U CN 200920287167 U CN200920287167 U CN 200920287167U CN 201690394 U CN201690394 U CN 201690394U
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- control module
- module
- starting
- fault
- self
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Abstract
The utility model discloses a self-coupling reduced voltage starter of an electric motor, which includes a start-point control module, a fault-recognition control module, a fault output module, a self-coupling contactor control module, an operation and conversion control module, and a starting fault-recognition module, wherein the start-point control module, the self-coupling contactor control module and the operation and conversion control module are respectively connected with a starting time-delay module; the start-point control module, the self-coupling contactor control module, the operation and conversion control module and the fault-recognition control module are connected with one another in an operation interlocking manner; and the fault-recognition control module is connected with the fault output module and the starting fault-recognition module in a control manner. The self-coupling reduced voltage starter has a simple structure and is convenient to use; the number of wiring lines for the secondary circuit can be effectively reduced, so that a self-coupling reduced voltage starting circuit just needs one controller to achieve the self-coupling reduced voltage starting function; and due to the over-running time protection, the burnout of an autotransformer, which is caused by long-time starting, can be avoided.
Description
Technical field
The utility model relates to electric motors, particularly be a kind ofly can effectively simplify motor auto-induction voltage-reduced starting circuit, realize the motor auto-induction voltage-reduced starting device of time-out protection function.
Background technology
Because what the starting current of motor was approximate is directly proportional with the voltage of stator, so the starting of motor need adopt the way that reduces stator voltage to limit the method for the reduced voltage starting of starting current.Especially for those because of across-the-line starting so that impulse current is excessive can't bear and to the less demanding occasion of starting torque, more need adopt decompression starting usually.Common reduced voltage starting method: stator crosstalk resistance reduced voltage starting, Y/ Δ start control circuit, prolong limit triangle starting, autotransformer reduced voltage starting.
And auto-induction voltage-reduced starting is comparatively a kind of in the motor decompression starting mode, mainly be on the coil of motor, to draw a plurality of taps, the turn ratio of former secondary coil is different after making different taps connect with the mains, voltage is also different after the energized, and motor is also different to the impact of line voltage.And the use auto-induction voltage-reduced starting, thus can protect line voltage to be unlikely to other equipment in moment becomes very low protection electrical network effectively, and the normal operation of assurance equipment is carried out continuously with producing.
But in common control cubicle auto-induction voltage-reduced starting control, often by using parts such as auxiliary relay, the time relay to realize the three-phase alternating-current motor auto-induction voltage-reduced starting, can make that like this circuit wiring amount is more,, be easy to generate fault to such an extent as to the contact switching is many.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of motor auto-induction voltage-reduced starting device, to solve the existing existing problem that is easy to generate fault of motor auto-induction voltage-reduced starting device.
To achieve these goals, the utility model is to realize by the following technical solutions:
A kind of motor auto-induction voltage-reduced starting device, described auto-induction voltage-reduced starting device is made up of asterism control module, Fault Identification control module and fault output module, it also comprises self coupling contactor control module, operation conversion and control module and starting failure identification module, and described asterism control module, self coupling contactor control module and operation conversion and control module also are connected with a starting time delay module respectively; Described asterism control module, self coupling contactor control module, operation conversion and control module and Fault Identification control module connect by the mode of operation interlocking; Then control links to each other described Fault Identification control module with the starting failure identification module with the fault output module.
The described starting time delay module that links to each other with the asterism control module is the starting time delay module of a step-by-step counting time-delay 0.5S.
The described starting time delay module that links to each other with self coupling contactor control module is the starting time delay module of step-by-step counting time-delay 0.5S.
The described starting time delay module that links to each other with operation conversion and control module is the starting time delay module of adjustable step-by-step counting time-delay.
The utility model is simple in structure, easy to use, can effectively reduce the line distribution quantity of secondary line in the motor auto-induction voltage-reduced starting circuit; Reduce auxiliary relay, the use of the time relay makes a self coupling fall the function that start loop only need just can be realized auto-induction voltage-reduced starting with an auto-induction voltage-reduced starting controller; And, can avoid autotransformer to burn out because of the starting time is long because starting also is provided with functions such as overtime protection.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is an internal structure sketch of the present utility model.
Fig. 2 is the terminals subgraph in the utility model.
Fig. 3 is the structural representation of auto-induction voltage-reduced starting circuit
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
As shown in Figure 1, be internal structure sketch of the present utility model, the utility model is a kind of motor auto-induction voltage-reduced starting device, mainly is made up of with, fault output module self coupling contactor control module, operation conversion and control module and starting failure identification module asterism control module, Fault Identification control module; These modules are when assembling, asterism control module, self coupling contactor control module, operation conversion and control module and Fault Identification control module connect by the mode of operation interlocking, and then control links to each other the Fault Identification control module with the starting failure identification module with the fault output module.
When considering asterism control module, self coupling contactor control module with the work of operation conversion and control module needs, the asterism control module need connect the starting time delay module of a step-by-step counting time-delay 0.5S, self coupling contactor control module also needs to connect the starting time delay module of a step-by-step counting time-delay 0.5S, and operation conversion and control module then needs to connect the starting time delay module of an adjustable step-by-step counting time-delay.
The utility model when mounted, as Fig. 2 and shown in Figure 3, on binding post of the present utility model, only need zero line on the N termination, live wire on the L termination, A, B end and C, D connects the fault output module, 1,2 termination Fault Identification modules, so be connected asterism control module the assisting down on the L1 end at the starting time delay module, wait for that about 0.5 second back is by the outside output of L1 end 220V voltage, again through after 0.5 second and be connected also down auxiliary at the starting time delay module of self coupling contactor control mould on the L2 end, outwards export 220V voltage by the L2 end, realize the motor auto-induction voltage-reduced starting, in process starting time-delay, the asterism control module just stops to the output of L1 end, and self coupling contactor control mould keeps the output of L2 end, spends about 0.2 second again, and L3 operation conversion and control module is down auxiliary the starting time delay module, outwards export 220V voltage by the L3 end, finish the self coupling starting.In the delay time of starting process, be not subjected to feedback signal at 1,2 ends as solid Fault Identification module, then can be judged as and break down, so L1 end, L2 end, L3 end stop outside output, it is closed respectively that the fault output module is then controlled A, B end and C, D end, and malfunction indicator lamp is also lighted.
Characteristics of the present utility model are: an auto-induction voltage-reduced starting loop only need use an auto-induction voltage-reduced starting device just can realize auto-induction voltage-reduced starting control; Can significantly reduce the distribution workload of secondary line, reduce the use of the auxiliary relay and the time relay, save production cost, improve the control cubicle reliability; Be provided with 0.6 second a starting time-delay in the auto-induction voltage-reduced starting module, this time-delay can be eliminated the Fraquent start problem, avoids Fraquent start to cause main noddle on contactor to damage; The utility model also is provided with the starting failure recognition function, surpasses the longest permission time when the starting time, and module will think that fault is arranged, and defeated fault alarm contact.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. motor auto-induction voltage-reduced starting device, described auto-induction voltage-reduced starting device is made up of asterism control module, Fault Identification control module and fault output module, it is characterized in that, it also comprises self coupling contactor control module, operation conversion and control module and starting failure identification module, and described asterism control module, self coupling contactor control module and operation conversion and control module also are connected with a starting time delay module respectively; Described asterism control module, self coupling contactor control module, operation conversion and control module and Fault Identification control module connect by the mode of operation interlocking; Then control links to each other described Fault Identification control module with the starting failure identification module with the fault output module.
2. a kind of motor auto-induction voltage-reduced starting device according to claim 1 is characterized in that, the described starting time delay module that links to each other with the asterism control module is the starting time delay module of a step-by-step counting time-delay 0.5S.
3. a kind of motor auto-induction voltage-reduced starting device according to claim 1 is characterized in that, the described starting time delay module that links to each other with self coupling contactor control module is the starting time delay module of step-by-step counting time-delay 0.5S.
4. a kind of motor auto-induction voltage-reduced starting device according to claim 1 is characterized in that, the described starting time delay module that links to each other with operation conversion and control module is the starting time delay module of adjustable step-by-step counting time-delay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202871675U CN201690394U (en) | 2009-12-31 | 2009-12-31 | Self coupling reduced voltage starter of electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202871675U CN201690394U (en) | 2009-12-31 | 2009-12-31 | Self coupling reduced voltage starter of electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201690394U true CN201690394U (en) | 2010-12-29 |
Family
ID=43378671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202871675U Expired - Fee Related CN201690394U (en) | 2009-12-31 | 2009-12-31 | Self coupling reduced voltage starter of electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201690394U (en) |
-
2009
- 2009-12-31 CN CN2009202871675U patent/CN201690394U/en not_active Expired - Fee Related
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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: 20101229 Termination date: 20131231 |