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working of transformerless variable frequency drive


Posted by:
Created at: Thursday 11th of July 2013 04:08:44 AM
Last Edited Or Replied at :Thursday 11th of July 2013 04:08:44 AM
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i request to..................[:=> Show Contents <=:]



slip energy recovery


Posted by: wrijul
Created at: Saturday 05th of November 2011 08:46:25 AM
Last Edited Or Replied at :Saturday 05th of November 2011 08:46:25 AM
slip energy recovery , slip, slip ring , slip power recovery, electric motors , induction machine, variable speed drives , wound rotor, speed control of induction motor , dc motors, dc motor , variable speed motors, wound rotor induction motor , induction motor, variable frequency drive , variable frequency drives, energy , recovery, slip energy recovery , slip power recovery, slip power recovery ppt , slip energy recovery in slip ring induction motor, slip recovery drives ppt , slip energy recovery project,
Hi this ..................[:=> Show Contents <=:]



feed control to reduce over speed


Posted by: Sasikumar9019
Created at: Thursday 10th of February 2011 12:48:13 PM
Last Edited Or Replied at :Thursday 10th of February 2011 12:48:13 PM
feed control to reduce over speed , speed drives, boiler feed , generator controller, boiler feed water system , chemical feed system, power plant control system , flow check valve, chemical feed systems , variable frequency, chemical feed , variable frequency drives, frequency drives , boiler feed water, variable speed drives , feed, control , reduce, over , speed, feed control to reduce over speed ,
i need to do a project in feed control during ove..................[:=> Show Contents <=:]



SPEED CONTROL OF SYNCHRONOUS MOTOR BY USING VARIABLE FREQUENCY DRIVES


Posted by: project report helper
Created at: Saturday 25th of September 2010 12:58:36 AM
Last Edited Or Replied at :Saturday 25th of September 2010 12:58:36 AM
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ip frequency. The scheme proposed fully compensates for the current±resistance (IR) voltage drop by vectorially modifying the stator voltage and keeping the magnitude of the ..................[:=> Show Contents <=:]



Variable Voltage And Variable Frequency drives full report


Posted by: seminar presentation
Created at: Tuesday 18th of May 2010 11:43:34 AM
Last Edited Or Replied at :Thursday 04th of October 2012 01:50:25 AM
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uction
Operating principle
Example
VVVFD system description
VVVFD controller
VVVFD operator interface
VVVFD Operation
Available VVVFD power ratings
Shrinking cost and size


INTRODUCTION

Induction motors have been used in the past mainly in applications requiring a constant speed
Because conventional methods of speed control have been either expensive or inefficient.
Variable speed applications have been dominated by dc drives. Availability of Thyristors, Power Transistors, IGBT have allowed that development of variable speed induction motor dri..................[:=> Show Contents <=:]



variable frequency drive


Posted by: project report tiger
Created at: Monday 01st of March 2010 02:31:26 AM
Last Edited Or Replied at :Thursday 14th of October 2010 08:29:48 PM
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current(AC) electric motors by controlling the frequency of the supply voltage of the motor. ¢ Motor-driven sys..................[:=> Show Contents <=:]



Traction system Traction drives


Posted by: [email protected]
Created at: Tuesday 16th of February 2010 02:39:22 AM
Last Edited Or Replied at :Saturday 18th of February 2012 04:33:39 AM
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Please give me some project idea on traction system or traction drives . also if ..................[:=> Show Contents <=:]



Integrated Power Electronics Module


Posted by: electronics seminars
Created at: Thursday 31st of December 2009 08:09:35 AM
Last Edited Or Replied at :Wednesday 19th of December 2012 11:56:45 PM
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the development of semiconductor devices. This is due to the limitations of power electronics circuits. The integration of power electronics circuit is quite different from that of other electronics circuits. The objective of power electronics circuits is electronics energy processing and hence require high power handling capability and proper thermal management.
Most of the currently used power electronic modules are made by using wire-bonding technology . In these packages power semi conductor dies are mounted on a common substrate and interconnected with wire bonds. Other associated ..................[:=> Show Contents <=:]



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