Why transformer neutral is earthed
Answers were Sorted based on User's Feedback
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.,,
Is This Answer Correct ? | 19 Yes | 1 No |
Answer / ganesan.n
To Ground the Un balanced cirulating current!!!
Is This Answer Correct ? | 9 Yes | 4 No |
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.
Is This Answer Correct ? | 4 Yes | 2 No |
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.
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / m.arun kumar
Because of excess of wire in the system....
Is This Answer Correct ? | 0 Yes | 3 No |
Answer / u.chandarasekar
Then How Earthing Contractor Gain Tats Why The Earthing Is
very Need In Transformer
Is This Answer Correct ? | 0 Yes | 6 No |
hello! can anyone explain to me how a 3 speeds table fan work? what are the factors that are controlling the speed of a normal table fan? Is it by varying the voltage or changing the magnetic field? would appreciate your reply :) thx in advance.
what is the operating principle of contactor(power).along with disection?
3 Answers NASA, Tech Mahindra,
why use celling fan wing is two or three ?
If a earth leakage circuit breaker trips is it possible to tell which house circuit breaker (I have four) is the faulty circuit?
How does numerical relay work?
how to prepare PPM schudule
what is the function of Droop CT and where it is used?
i need bhel question papers.
how hydrogen or helium is a cooling agent for alternator./ generator of big size.
Why different types of connection in transformers are used? (star/star,star/delta,delta/star,delta/delta)Why we are only taking in consideration of star/delta type transformers? if only star/delta is good in practice where doses other type of transformers are used? Note: i want to know place of using different types of transformers other than Star/delta type with brief description.
A car's starter motor draws a current of 100 A at 12,0 V when starting the engine. The mechanical power required to turn the engine is 960 W. At what rate is energy from the battery converted to non-mechanical forms of energy?
To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors