Answer Posted / dr. joshy jose

Earth resistance is mwasured by using earth resistivity
meter. It is by using four probe method. Two electrodes
for potentials and the other two for currents. There are
two methods, viz. Schlumberger method and Wenner method in
which two types of electrode assembly. There are special
formulae to calculate the resistance from the apparent
resistivity we get from the instrument. There are special
software to interpret the data.

What is the kiosk parts, about them and their functions ? If anybody have some PDFs files or details about this plz send it on tawhidfaisal@Yahoo.com

1935

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Why Utility Distribution System in India is mainly at 11 kV? Why not Utility go for 33 kV?

1747

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Logic using 1 kV or 1,1 kV grade in house wiring Low voltage cable. Explain/suggest? some use 1kV and some prefer 1.1kV grade insulation low voltage cable why??

1656

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Either It Possible a dc Motor to Run On Ac Drive [ Ex : ACS 800 , Yaskawa F7 ] If it is Possible How Pls Inform Me dinesh_elect_eng@yahoo.com

1970

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please anybody help me to find out the BHEL trainee Exam previous year questions papers . if u ve pls. send it to surekhared@gmail.com

1982

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What is the difference between Droop vs Isoch Control?

2441

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How isolater function when installed inelectrical 440V wiring

2245

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explain different types of d.c motors?

1156

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Comment on the working principle of operation of a single-phase transformer.

1201

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what is meant by LCR meter? where its useful ?

2054

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What information we need to prepare relay coordination chart

2358

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Inductor and capacitor........power in one phase and ...... in it another phase.

2145

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use of choke in APFC panels

5828

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what is meant by 3rd hormonics ?

2027

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what is JE exam?

2180

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