Answer / sudhakar g

For any transformer it is better to install two for body
eathing and two for Neutal earthing
Body Earthing: GI pipe 40mm dia using charcoal and salt
like this
Neutral Earthing: Copper plate 600x600x3 mm size for
netural earthing with all neccesary materials

After completion of Earthing you need to check the earth
resistance value for these earthing it should be below 3ohms

I think these are the neccasary requiremnts for your
trasnformer

According to IS standards the distance between pits must be
2.5mtrs and from the building it should be far from 3000mm

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we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards

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Did RMU have ct and pt ?

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how to calculate 'In'in a system?

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IN A SMALL D.C GENERATOR, IF WE REPLACE THE LAMINATED CORE ARMATURE WITH A WOODEN BLOCK OF SAME SIZE & SHAPE AND WIND WIRES WOUND ON THE SLOTS OF WOODEN ARMATURE AND CONNECTED TO THE COMMUTATOR.COMMUTATOR IS FITTED WITH BRUSH TO RECEIVE INDUCED E.M.F.WHETHER E.M.F GENERATED OR NOT?

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1. When do you use a VFD motor? 2. If the ceiling fan is on slow speed, does it consume less electricity? 3. If we want the fan to consume less electricity at low speed, what do we have to do? 4. What does “battery of 180 AMP HOUR” mean to you? 5. What does “battery of 180 AMP HOUR” mean to you? 6. If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

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sir what is the minimum IR value of 11 KV alternator?

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I completed my BE EEE degree 2006 .... which license should i apply .... ?????

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