Answer / sunil. g

As the name itself suggest us in a DC gear motor the
position is predefined ie a cogwheel has a equidistant
teeth, but a stepper motor is one which can be controlled
very precisely. It all dependes on the position you ermark
if you know the exact position you can use DC Gear motor if
it is different angle which is not uniform you can use
Stepper motor.

7. Why AC motors, AC bulbs etc... are donot operated by DC signals? and Why DC motors, DC bulbs etc... are donot operated by AC signals?

2 Answers   Bhel,

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what is dc transformer? how it work?

15 Answers  

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How do you think they do earthing or grounding in ships and aeroplanes?

9 Answers  

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what is the Maximum voltage range for single phase

4 Answers  

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At what voltage domestic tubelight works?

2 Answers   Cigfil, L&T, MNC,

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what is basic difference betmeen normal & flame proof motor??

0 Answers  

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WHICH SUPPLY IS BETTER FOR 4 MW LOAD. 1)TO TAKE NEARER AVAILABLE 11 KV SUPPLY OR 2)TO TAKE 33 KV SUPPLY WHICH IS AVAILABLE AT 10 KM DISTANCE BY INVESTING NEARLY 50-60 LACKHS

1 Answers  

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How many devices can be connected in one zone of FACP

0 Answers  

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what is reactive and active power?why we need power factor correction?

2 Answers  

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

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why we use choke in tubelights nad other lighting fixer

1 Answers  

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how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?

0 Answers  

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