What are the different auxiliary protections of a transformer?

1 Answers   CESC,

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What will happen to transformer if we gave 5HZ input instead of 50/60Hz??? explain with reason

2 Answers  

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What is primary and backup protection?

0 Answers  

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Any formula to calculate neutral current in 3 phase 4 wire system

1 Answers  

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what happen if the secondry winding of the transformer is having less no of turns compare to the primery winding.

2 Answers  

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what are the preventive maintanance actions taken for air circuit breaker? please answer me

0 Answers   MAHINDRA,

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WHY WE USE SIEMENS plC

3 Answers  

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1 Amp = kva ? 1 Amp =KW ?

3 Answers   Marriott,

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Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

0 Answers   HAL,

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what is the diffrence between capasitor and battery?

2 Answers  

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What is excitation in case of dc motor?

0 Answers  

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why the frequency and voltage in india is 230v and 50HZ. when compared to USA say 110v and 60 HZ.

0 Answers   Alstom,

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