Fire pumps are not used with ELCB control, why ?

4 Answers  

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What is meant by operating sequence of VCB : 0–0.3sec.–CO– 3min.-CO

2 Answers  

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why the Current transformers secodary is shorted to ground (In metering and Protection)

2 Answers  

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Why the magneti fields are not passes from southpole to north pole

0 Answers   SGML,

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what is the chemical name and formula of refrigarent R-134a.

0 Answers   Blue Star,

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how to calculate cable size with respect kw

0 Answers   SPMI,

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Why celing fans will rotate slowly after some days.?

2 Answers  

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What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.

0 Answers  

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how to check dc current,how to fix ammeter in dc line

5 Answers   Gold Fields,

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i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com

0 Answers   RRB,

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How to select AC3 duty contactor for DOL & Star-Delta starters

1 Answers  

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What it is the diff btw Package & PEC AC's????

2 Answers   Emerson,

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