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REGULATION OF 3-PHASE ALTERNATOR BY POTIER AND ASA METHODS


Posted by: smart paper boy
Created at: Friday 29th of July 2011 04:51:34 AM
Last Edited Or Replied at :Friday 29th of July 2011 04:51:34 AM
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g the Three point starter, start the motor to run at the synchronous speed by varying the motor field rheostat.
5. Conduct an Open Circuit Test by varying the Potential Divider for various values of Field current and tabulate the corresponding Open circuit voltage readings.
6. Conduct a Short Circuit Test by closing the TPST knife switch and adjust the potential divider the set the rated Armature current, tabulate the corresponding Field current.
7. Conduct a ZPF test by adjusting the potential divider for full load current passing through either an inductive or capacitive load with zero p..................[:=> Show Contents <=:]



armature reaction for synchronous machine ppt


Posted by:
Created at: Sunday 18th of November 2012 10:26:59 AM
Last Edited Or Replied at :Monday 19th of November 2012 01:49:19 AM
effect of armature reaction for synchronous generator , ppt of topic armature reaction of synchronous generator, armature reaction in synchronous machine ppt , armature reaction in alternator ppt, armature reaction ppt , seminar topic on armature excited machines, ppt on armature reaction of synchronous machine , ppt on armature reaction of synchronous generator, armature reaction in synchronous motor , armature reaction, ppt on synchronous machine , synchronous machines ppt, seminar on synchronous machine , armature reaction in synchronous machines ppt, ppt on synchronous motor maintenance , armature reaction synchronous generator ppt, ppt on armature reaction ,
ppt on effect of armature reaction for synchronous g..................[:=> Show Contents <=:]



simulated model for reverse power protection of an alternator ppt


Posted by: v nandakumar
Created at: Thursday 23rd of February 2012 12:59:55 PM
Last Edited Or Replied at :Thursday 23rd of February 2012 12:59:55 PM
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..................[:=> Show Contents <=:]



automatic voltage regulator for alternator


Posted by: m sufyan
Created at: Tuesday 03rd of January 2012 04:32:58 AM
Last Edited Or Replied at :Friday 12th of October 2012 01:30:00 AM
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what is a..................[:=> Show Contents <=:]



ALTERNATOR BRUSHLESS TYPE


Posted by: smart paper boy
Created at: Tuesday 02nd of August 2011 06:21:56 AM
Last Edited Or Replied at :Tuesday 02nd of August 2011 06:21:56 AM
what is the role of rra in alternator, define rra unit in generator , alternator with magnetic coli rotar, permanent magnet brushless alternator rotor and stator rotating type project report ,
t of 6 power diodes,3 numbers of cathode stud and 3 numbers of anode stud to convert AC to DC.The DC voltage from RRA is fed to the main field of generator.
Rotating Rectifier Assembly
TERMINAL BOX
The AC outputs are brought out to top side of the machine and are terminated in terminal box. The terminals box also accommodates the generator control unit(GCU).The GCU comprises of an automatic voltage regulator and filter unit.
OPERATING PRINCIPLE
In the separately excited system (PMG) there is separate source of exciter field power ..................[:=> 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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cular to Id) to OD vector from the point C, with the magnitude of the drop IdXd (Line CF).
10. Draw a parallel line (ie perpendicular to Iq) to OE vector from the point F, with the magnitude..................[:=> Show Contents <=:]



REGULATION OF 3-PHASE ALTERNATOR BY POTIER AND ASA METHODS


Posted by: smart paper boy
Created at: Friday 29th of July 2011 04:51:34 AM
Last Edited Or Replied at :Friday 29th of July 2011 04:51:34 AM
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lation = Eo – Vrated x 100 (For both POTIER & ASA methods)
Vrated
PRECAUTION:
(i) The motor field rheostat should be kept in the minimum resistance position.
(ii) The Alternator field potential divider should be in the position of minimum potential.
(iii) Initially all switches are in open position.
PROCEDURE FOR BOTH POTIER AND ASA METHODS:
1. Note down the complete nameplate details of motor and alternator.
2. Connections are made as per the circuit diagram.
3. Switch on the supply by ..................[:=> Show Contents <=:]



Harmonic effects on synchronous generators voltage regulation


Posted by: seminar class
Created at: Friday 11th of March 2011 09:50:31 PM
Last Edited Or Replied at :Friday 11th of March 2011 09:50:31 PM
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rator set is employed as an integral part of Power System Simulator to supply power to various loads during the performance of the test. The speed of the dc motor, the prime mover, can be varied through the use of the field rheostat (0-18 V dc). A three phase alternator is employed as a separately exited synchronous generator.
A calibrated single channel instrument with built-in voltage and current scaling was used to record the voltage and current waveforms of the generator under test. The stored digital samples were transferred via IEEE bus to a computer for harmonic analysis and calculati..................[:=> Show Contents <=:]



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