CN2859915Y - Three-phase asynchronous electric machine having high power coefficient - Google Patents
Three-phase asynchronous electric machine having high power coefficient Download PDFInfo
- Publication number
- CN2859915Y CN2859915Y CNU2005200481760U CN200520048176U CN2859915Y CN 2859915 Y CN2859915 Y CN 2859915Y CN U2005200481760 U CNU2005200481760 U CN U2005200481760U CN 200520048176 U CN200520048176 U CN 200520048176U CN 2859915 Y CN2859915 Y CN 2859915Y
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- high power
- capacitor
- electric machine
- motor
- power factor
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Abstract
The utility model relates to an electric machine, in particularly a three-phase asynchronous electric machine having high power coefficient, characterized in that, a capacitor is arranged in the connection box of the electric machine. A capacitor is arranged in series in each winding in the electric machine, or a capacitor aranged in parallel between two windings, which not only advances the power coefficient, but also reduces the waste, advances the efficiency , reduces the temperature rising, prolongs the service life.
Description
Technical field
The utility model relates to motor, especially a kind of threephase asynchronous machine of High Power Factor.
Background technology
As everyone knows, various in the market threephase asynchronouses, because winding is perceptual, power factor all lags behind.And the more little motor of capacity, power factor is low more, and the reactive power of drawing from electrical network is big more, has had a strong impact on the utilance of electrical network.The use of lower-wattage factor motor influences the total power factor of electricity consumption department on the one hand, also makes the loss of motor self increase, and falls efficiency of motor.The way that solves is an electricity consumption department installation power factor compensator at present, to improve the power factor with electric unit.
Summary of the invention
The purpose of this utility model provides a kind of threephase asynchronous machine of High Power Factor, compares with common AC asynchronous motor, and this motor has higher power factor.
The purpose of this utility model is achieved in that a kind of threephase asynchronous machine of High Power Factor, it is characterized in that, capacitor is installed in the connection box for motor.
Because the anticipation of capacitor when machine operation, can make current phase near voltage-phase, thereby effectively improve the power of electric motor factor.
Advantage of the present utility model is as follows:
Because, capacitor has been installed in the connection box for motor, make the power of electric motor factor be improved.For electricity consumption department, can save the installation of power-factor compensator, brought facility therefore for electricity consumption department.
Again because, capacitor has been installed in the connection box for motor, improved the power factor of motor, thereby electric current reduces when making motor output equal-wattage, thereby loss reduces, and efficiency of motor is improved, temperature rise simultaneously reduces, and therefore can prolong the useful life of motor.
As seen this motor is the power factor height not only, and the efficient height, and temperature rise is low, and the life-span is long.
Description of drawings
Accompanying drawing is the electrical schematic diagram in the utility model terminal box.Among the figure: the 1-winding; The 2-capacitor.
Embodiment
Below in conjunction with accompanying drawing in detail execution mode of the present utility model is described in detail:
A kind of threephase asynchronous machine of energy High Power Factor is equipped with capacitor 2 in the connection box for motor.
The purpose of this utility model is achieved in that the motor three phase windings capacitor that whenever is in series, and three condenser capacitance values are identical, and are installed in the connection box for motor.Because the effect of capacitor will make the phase angle of the electric current lagging voltage that flows through every phase winding diminish, power factor is improved.
Accompanying drawing winding " Y " connection, capacitors in series are in every phase winding, and capacitor also can be connected in parallel between per two phase windings.Equally, motor windings also can be " Δ " connection.
This use is novel to have an effect preferably in order to make, and described threephase asynchronous is Y or Y2 serial motors.
Claims (4)
1, a kind of threephase asynchronous machine of High Power Factor is characterized in that, capacitor is housed in the connection box for motor.
2, the threephase asynchronous machine of a kind of High Power Factor according to claim 1 is characterized in that, capacitor of every phase winding series connection.
3, the threephase asynchronous machine of a kind of High Power Factor according to claim 1 is characterized in that, capacitor in parallel between per two phase windings.
4, the threephase asynchronous machine of a kind of High Power Factor according to claim 1 is characterized in that, threephase asynchronous machine is Y series or Y2 serial motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200481760U CN2859915Y (en) | 2005-12-29 | 2005-12-29 | Three-phase asynchronous electric machine having high power coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200481760U CN2859915Y (en) | 2005-12-29 | 2005-12-29 | Three-phase asynchronous electric machine having high power coefficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859915Y true CN2859915Y (en) | 2007-01-17 |
Family
ID=37612772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200481760U Expired - Fee Related CN2859915Y (en) | 2005-12-29 | 2005-12-29 | Three-phase asynchronous electric machine having high power coefficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859915Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604347B (en) * | 2009-04-17 | 2011-08-31 | 上海海事大学 | Method for building model of dual three-phase asynchronous motor based on winding complex transformation |
-
2005
- 2005-12-29 CN CNU2005200481760U patent/CN2859915Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604347B (en) * | 2009-04-17 | 2011-08-31 | 上海海事大学 | Method for building model of dual three-phase asynchronous motor based on winding complex transformation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |