Answer / remodeen

FIRST FOR PROTECTIONSOF OVER CURRENT, SHORT CKT IN TRANSFORMERS.,

WHEN BALANCED CONDITION THERE WILL BE NO CURRENT FLOW IN NEUTRAL.,,

BUT UNBALANCED CONDITION HOWEVER THE FAULT CURRENTS GO TO NEUTRAL AND HOW THE PROTECTIONS TAKE PLACE?????

ACTUALLY IN NEUTRAL THERE WILL BE NEUTRAL CT CONNECTED WITH EARTH LEAKAGE RELAY.,,

WHEN UNBALANCED CONDITION OCCURS THE CT SENSE THE FAULT CURRENT THAT GOES TO ELR.,, FINALLY THE RELAY TRIP THE MAIN SUPPLY.,,

Answer / ganesan.n

To Ground the Un balanced cirulating current!!!

Answer / jagdish pd pawar

All electrical machines,house hold equipment is required to
connect with earth (groung)for safety pupose.
When phase will leack to body of electrical machine,throgh
earth only transformer neutral will connect and circuit
will complete and cicuit fuse will blow out(due to draw of
heavy current)and prevent the human from electric shock.

Answer / pravin tamshetty

Ground or earth in a mains (AC power) electrical wiring system is a conductor that provides a low-impedance path to the earth to prevent hazardous voltages from appearing on equipment (high voltage spikes).a grounding conductor does not carry current. Grounding is an integral path for home wiring also because it causes circuit breakers to trip more quickly


Neutral is a circuit conductor that normally carries current back to the source. Neutral is usually connected to ground (earth) at the main electrical panel, street drop, or meter, and also at the final step-down transformer of the supply.

Answer / nam@yahoo.com

Who Is The Blody U.Chandraseker

Answer / m.arun kumar

Because of excess of wire in the system....

Answer / u.chandarasekar

Then How Earthing Contractor Gain Tats Why The Earthing Is
very Need In Transformer

what is the value will come when megger the phase to phase ,phase to neutral ,phasae to ground ?

3 Answers  

Total power capacity of india at present

8 Answers   Bhel,

why we use RYB phase sequence? and somewhere we use UVW ? why?

6 Answers   CSPDCL-Chhattisgarh State Power Distribution Company Limited, MUET, TCS,

tell 2 reasons for why only copper is used in domestic wires& only alluminium in transmission lines ?

10 Answers   ABB,

How many turns are there in primary winding? (In Transformer)

0 Answers   Philips,

how to measure the A.C flux .-instrument

8 Answers   NTPC,

I have 380.KVA Volva Penta DG set. Tell me how to calculate units from KWH reading....

3 Answers  

how to calculate neutral current in three phase four wire system

1 Answers   Auto Meters,

What is the most important precaution in any experiment with d.c. Shunt motor?

0 Answers  

What is the function of trip neutral close switch?

11 Answers  

define the power factor in one word

12 Answers  

why do you want leave the company

2 Answers