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parallel operation of alternators ppt


Posted by:
Created at: Sunday 25th of November 2012 12:06:34 PM
Last Edited Or Replied at :Sunday 25th of November 2012 12:06:34 PM
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please give me ppt file on this subject,si..................[:=> Show Contents <=:]



SLIP TEST ON 3-PHASE ALTERNATOR


Posted by: smart paper boy
Created at: Friday 29th of July 2011 04:51:52 AM
Last Edited Or Replied at :Friday 29th of July 2011 04:51:52 AM
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at at the same time check whether the alternator field has been opened or not.
5. Apply 20% to 30% of the rated voltage to the armature of the alternator by adjusting the autotransformer.
6. To obtain the slip and the maximum oscillation of pointers the speed is reduced slightly lesser than the synchronous speed.
7. Maximum current, minimum current, maximum voltage and minimum voltage are noted.
8. Find out the direct and quadrature axis impedances.
PROCEDURE TO DRAW THE VECTOR DIAGRAM:
1. Draw the line OA that represents the rated voltage V.
2. Draw the line OB vector to repres..................[:=> Show Contents <=:]



INVESTIGATION OF ALTERNATORS SUBJECTED TO DIFFERENT LOADS AND MINIMIZATION OF ENCOUN


Posted by: seminar class
Created at: Friday 11th of March 2011 04:40:20 AM
Last Edited Or Replied at :Friday 11th of March 2011 04:40:20 AM
investigation of alternators ppt,
nterface in Matlab
Parameters under consideration
 Terminal Voltage
 No-load voltage
 Armature current
 Power factor
 %THD : voltage
 %THD : current
 Voltage regulation
• Voltage Regulation
Case Study
IEEE paper published by Abdul H.Samra and Khankader M.Islam on study performed at Florida International Unversity at Miami, Florida.
• Case Study Observations
• Case Study Observations
• Voltage Waveforms
• Harmonics
Effects of Harmonics:
• Oscillatory torque
• Primary and secondary copper losses
• Core loss..................[:=> Show Contents <=:]



microprocessor based alternator synchronization


Posted by: PRECIOUS001
Created at: Wednesday 09th of March 2011 09:39:17 AM
Last Edited Or Replied at :Friday 07th of December 2012 02:23:15 AM
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Hi,
I'm Penninah and I'm a an engineering student, and i'll love to hav..................[:=> Show Contents <=:]



Analysis of parallel operation of converters with interphase transformer


Posted by: Wifi
Created at: Friday 22nd of October 2010 11:56:01 PM
Last Edited Or Replied at :Friday 22nd of October 2010 11:56:01 PM
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dynamic inductance model is utilized to represent the magnetic non-linearity of the transformer. Here, small and large resistances during ON and OFF s..................[:=> Show Contents <=:]



Automatic voltage regulation of alternator used in UKAI PP


Posted by: chodekiran
Created at: Thursday 04th of March 2010 10:56:28 PM
Last Edited Or Replied at :Thursday 04th of March 2010 10:56:28 PM
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related information of Automatic vo..................[:=> Show Contents <=:]



Automatic voltage regulation of alternator used in UKAI PP


Posted by: chodekiran
Created at: Thursday 04th of March 2010 10:53:47 PM
Last Edited Or Replied at :Tuesday 10th of January 2012 03:08:30 AM
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. Automatic voltage regula..................[:=> Show Contents <=:]



Microprocessor Based Alternator Synchronisation


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:09:02 PM
Last Edited Or Replied at :Saturday 25th of February 2012 01:24:00 AM
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o assure continuous supply the number of generator unit connected to the system bus bar are varied suitably.

The synchronization requires fulfillment of various conditions like
(1) Same phase sequence
(2) Equality of frequency and voltage between incoming machine and bus.

At present the synchronization is done manually by using conventional analog instruments. The microprocessor based system of automatic synchronizer can be used more effectively compared to conventional methods of synchronization such as dark lamp method, bright lamp m..................[:=> Show Contents <=:]



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