i) in which cases should we go for neutral and where should we go for ground?

i) in which cases should we go for neutral and where should
we go for ground?

ii) in domestic supply we are getting 230v a.c.and what is
the amount of current?

Question Posted / sunakal

2 Answers
4501 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

i) in which cases should we go for neutral and where should we go for ground? ii) in domestic ..

Answer / h s dhillon

1) Althogh the question is not fully clear,I try to answer
it according to my understanding. The neutral wire is used
as return path with a phase wire to complete the circuit ,
whereas, the ground wire is basically meant for protection
against faults. Although, both these wires are joined
together at the distribution T/F and hence, the ground wire
can also work as neutral wire(of course, in a poor manner)
but in that case the return current flows through the
earth wire which is generally a bare steel wire and it
gets heated and melts the PVC insulation of the
neighbouring wire, ultimately leading to a short circuit.
2)The amount of current depends upon the load (Wattage) of
the appliance connected to the supply.

Is This Answer Correct ?

2 Yes

0 No

i) in which cases should we go for neutral and where should we go for ground? ii) in domestic ..

Answer / udayak25

1. To complete the ckt neutral is necessory.
And when accidints like shock etc happen then grounding or
earthing is necessary to flow faulty current to the earth.

2.Yes, in domestic 220 1ph or 440 3ph we r getting, but the
current in domestic lavel we have to consider Ele. Board
Sanctioned load. it means suppose EB sanction load is 4kW,
but connected load is around 7kW, for this we have to
consider current for sanction load only i.e 4kW not for
7kW. So current for 4 kW will be 21A, so MCB will be of 25A.

Is This Answer Correct ?

1 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

distribution is maximum done by a)radial b)network c) parallel d)b & c

0 Answers

What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?

0 Answers

how to calculate current carring capacity of cable and cable selection? 1) copper flexible cable 2) copper armoured cable 3) Aluminium cable

0 Answers

Why we have short circuit the secondary of the transformer

1 Answers

What is the purpose of using busbar mounting fuse?

0 Answers

what is the responsibility of C license holder in industry?

0 Answers

Can any body tell me what is use of END OF LINE RESISTOR in fire alaram circuit?

2 Answers

Why Ac Systems Are Preferred Over Dc Systems?

0 Answers ABB,

WHAT IS METHOD TO DESIGN SIZE OF A 11KV UNDER GROUND CABLE FOR A OUTGOING FEEDER FEEDING 6NOS 250KVA TRANSFORMERS WITH 5KM LENGTH OF FEEDER?

1 Answers

What is safety of Ht panel

0 Answers

What is the scale analysis for condensor of HVAC system

3 Answers

How loading get increased in generator not the speed, while we increasing steam to turbine.

2 Answers

For more Electrical Engineering Interview Questions Click Here