Answer / ajay daultani

drives are used only for motion control so if you are
talking about ac or dc drives then both are only used for
motor speed control by controlling ac or dc output voltage

Answer / hari

1)yes,
2)no,3)yes

Answer / j.kesavan

we are using dc drives for high starting torque,very easy
to handeled this speed.

Answer / mithun patidar

ac drive is used to contrrol ac out put and dc is use to
control dc output

How would you relate your key competencies to this position?

0 Answers  

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In which connection the distribution T/F is connected? a) ▲ / Y b) Y / ▲ c) ▲ / ▲ d) Y / Y

4 Answers  

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What is the difference between amorphous core transformer and CRGO core transformer?.

0 Answers   DAE,

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what is swirl induction in i.c engine????????

1 Answers   Ashok Leyland,

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draw a circuit diagram connecting transformer OLTC- RTCC- VCB-Marshalling Box otherwise Explain in words

1 Answers  

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10 hp motor ,7.5 kw ,960 rpm, full load current 15.5, delta connection so how much take current no load trial time. any formula please give..... second question :- what is different between brekar control wiring and motor starter control wiring

1 Answers   MSP,

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what is mppt (maximum power point tracking ) and how they used in solar power generation ??? what are the main components used in mppt?????

0 Answers  

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where used impendence relay?

3 Answers  

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which one is rotating transformer-single phase induction motor or 3 phase squirrel cage motor?

1 Answers  

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Why dc voltage used to excite alternator field in stead of ac?

4 Answers  

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given data are load current & power factor cable core size? plz any one update the calculation formula

0 Answers  

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an amazing situation was faced when an alive distribution panel with 415 volts and carrying almost 200Amps has become short and this metal cubical showing 220 volts against neutral and earth. to redress any confusion i checked the panel with help of single 200watts test lamp which also glowing with max.intensity b/w neutral & metal body of DB. amazing situation is that i hold the DB firmly more than once with necked foot means without insulated shoes but not received any electrical shock. whereas our all running gen sets neutral points also proper grounded and this short DB was completely earthed , this is beyond my understanding . any body explain how is it possible . our running gen set neutral also grounded firmly

1 Answers  

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