IF I USED VVVF DRIVE IN FAN APPLICATION MOTOR IN 6.6 KV ( 700 KW) MOTOR & DURING NORMAL RUN OPERATION TIME IF RPM SUDDENLY REDUCE IN MOTOR BY DRIVE(E. MOTOR RPM REDUCE SUDENLY 687 TO 550 RPM) WAHT WILL BE HAPPEND IN DRIVE

1 Answers  

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i need to give section engineer (electrical engineer) for RRB. Please suggest some book

0 Answers  

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3ph motor running with unequal kw and different pf what are the reasons

0 Answers   UltraTech,

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what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?

0 Answers  

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What difference between MCB,MCCB,RCCB,ELCB please explain briefly with its rating.

3 Answers  

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why there is a humming noise in transformer

8 Answers   Bhel,

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I have 1 KW, 3ph. 440v, 50 hz, cos(phi) .75, efficiency 75%(star delta connection)Motor. How to calculate line current & Phase current (1) Star connection (2) delta Connection

2 Answers  

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air condition capacity for masjad having 50feet in circal and 35 feet high

3 Answers  

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how a generating station can monitor its multi users power factor. What type of incentive /penalty is associated with power factor management.

1 Answers   Sojex,

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what is specific gravity of a battery if specific gravity increase/decrease,what will happen to the voltage/current of the battery

5 Answers   NTPC,

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60 watt bulb and 1500watt iron which device has more resistance & why

5 Answers   RMSI,

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What is the difference between Rectifier & Converter?

12 Answers   Bajaj,

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