Answer / mohd hakim

its an emergency rescue device whenever elevator stuck between two floors its sense and open the door of the elevator to the nearest floor after 3 minuteswith the help of dc batteries.

What is meant by short-pitched winding?

0 Answers  

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How to Select a Transformer Rating ?

3 Answers   Tata Steel Limited, Techno Electric and Engineering, Vedanta,

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phase colour is indicated by R Y B (red yellow blue) but in transformer i have seen U V W instead of (R Y B) have any meaning of this

3 Answers   Areva, Kim Yew,

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Pls say , how we calculate lux / sq.ft, which formula used for calculation

5 Answers  

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How to calculate the diesel generator efficiency? what details are required to identify the running diesel generator sets with 1000 kVA & 180 kVA?

11 Answers   Greeves, Sudhir Power,

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why wire sizes are 3/29 or 7/29 and why not wire sizes are 2/29 or 6/29?

0 Answers   OGDCL,

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What are the types of bus duct?

1 Answers  

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State any two nuclear power stations in India, with their generating capacity.

0 Answers  

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why distribution transformer is uesd in Delta/Star formation?is there any significance in doing this?If yes then breif?

3 Answers  

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what is the basic principle of operating of a television camera tube?

0 Answers   Student,

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Arrangement of earthing materials.like what we put first charcol,then salt.then plate. Plz answer me about that.

1 Answers  

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what is the minimum voltage require to injure our body?

4 Answers  

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