Answer Posted / hanu

i can agree with your answer

how to build a network which step down 415v to 1v rms

1966

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Why do we use copper cable for HT Supply and why not Aluminium?

1996

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1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.

6285

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what is accuracy ? in any meters , coils accuracy . how can u defined that ?

2405

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Why to keep capacitor bank off while generator running.

1772

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Where voltage are high and current to be interrupted is low the breaker preferred is:

2266

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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

1441

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What is the maximum number of swithes that can be connected in series up to down stream point in an LV Distribution system?

1986

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In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?

2128

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How to design the NGR Resistance

2052

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how do u gauge the size of the cable ?for eg. consider a 300 sqmm L.T Cable.How do u determine the size of the cable seeing it pratically?

2095

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What does quality factor depend on in resonance?

1066

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What is evaporator & condencer & compressor

2141

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In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?

1854

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electromechanical relay type identification example : type=tjmh t-stants for j- m- h-

2430

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