what is the min and max ohmic resistance for the earthing rod installed for lighting poles for street light network

3719

3- What is the target from Zero Impedance, Single Phase Imp., S/C Imp. and magnetic balance tests?

1820

1)Explain why the cradle guard is used on railway crossing in overhead line construction?

5008

what sort of general awareness questions are asked in o.n.g.c entrance exam?????????????????

4597

Why auxiliary transformers are not connected in parallel in primary stations?

1388

how to calculate maximum current

2285

why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?

2022

How to calculate the volumetric capacity of a oxygen & Nitrogen gas Cylinder if pressure is 145 kg/cm2 & water capacity of cylinder is 67 liters.

2141

what is the necessity of under ground cables ??

2047

How to perform a DC resistance test In Alternator and their proceduces?

1687

what is meant by tranformer impedance?

2564

hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar

1955

what is working process of star delta controlling circuit ?

1842

How many types of colling system it trformers?

1137

What is the IS standard for MCCB to be use (As per capacity of AMP)& for ACB also.

1971