Answer Posted / chellappan s

It is thoritical and cannot be achieved. Acceptable value is 1 ohms for medium voltages by practice.
Still lower value may be archived by several methods where sentive equipments are to be earthed. It will be costlier.

what is class of SPD and dittels of all class ?

2189

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What are the advantages & disadvantages of a group electrive drive?

2203

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design of IGBT firing circuit for 11KV

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A generating system will have a total capacity of 300 MW. Find the probable forced outage when the capacity is supplied by two 150 MW units. The operating probability of all units is P=0.98 and forced outage probability rate Q =0.02 .

2686

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how many safety really of DG sets.

2276

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What are the advantage of free wheeling diode in a full wave rectifier?

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i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper

2240

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does buccholz in a transformer use batteries

4969

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Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.

2226

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How to decide DO set rating of Transformer?

1693

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we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???

2036

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what is the principle of the single phase energy meter? and,what is the advantages and disadvantages of single phase energy meter?

4637

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iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?

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what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights

1976

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The slip during plugging operation is given by= A 1-s B 2+s C 1+s D 2-s

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