IN THE CASE OF AN ELCB, IF THERE IS ANY UNSTABILITY BETWEEN PHASE AND NEUTRAL I

IN THE CASE OF AN ELCB, IF THERE IS ANY UNSTABILITY BETWEEN
PHASE AND NEUTRAL IT MAY TRIP. BUT MY QUESTION IS WHEN A
LOAD IS CONNECTED IN BETWEEN P AND N, THE LOAD CONSUMES SOME
POWER AND THERE IS A DIFFERENCE IN NEUTRAL WITH RESPECT TO
THE PHASE. THUS ACCORDING TO ME, THE ELCB WILL AUTOMATICALLY
OPERATES WHEN EVER THE LOAD CONSUMES-- I KNOW IT IS WRONG.
BUT THE SOLUTION IS?????????

Question Posted / abhijith

1 Answers
4377 Views
KSEB, I also Faced
E-Mail Answers

IN THE CASE OF AN ELCB, IF THERE IS ANY UNSTABILITY BETWEEN PHASE AND NEUTRAL IT MAY TRIP. BUT MY Q..

Answer / pillay

Maybe your understading of the elcb/ rccb is not true.Any load
consumed current is shared among the phases or and
newtral.that means what ever current that flows through the
elcb must flow out,there can be a difference only when there
is a loss, which means some of this current that had flowed
through are flowing out a different route,(leakage)if this
difference exceeds the trashold of the elcb/rccb than it
trips.

Is This Answer Correct ?

6 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

what is the differences between single phase ind. motor and three phase ind.motor?

3 Answers

what is basic difference betmeen normal & flame proof motor??

0 Answers Dynamics,

Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for 2 lamps blinking alternately with this button characteristics: 1.) One push button (starts upon pressing) 2.) Same push button (when pressed again, will pause the system) 3.) Same push button (when pressed again, will continue the paused system) 4.) Same push button (when pressed within 2 seconds, will shut off the system) Pls..i know this is just a simple problem for you guys..

2 Answers

i have a Connected Load of 280KW and Maximum Demand of 224KW to one of SMDB under design with me. which criteria should i consider to design panel and main cables connected Load or Maximum Demand 1)Breaker rating 2)Panel Busbar rating 2)Incommer cable sizing (ignore Voltage drop)

1 Answers

can any one tell me the formula for calculating the power and unit consumpetion

9 Answers Avalon,

What is the purpose of a process loop? What is the controllers responsibily?

1 Answers

What does OHB stand for in specifications for circuit breakers, especially found in SF6 circuit breaker?

1 Answers

what is the VA(Volt-amphere)? define with calculation?

0 Answers

3. What is Impedance Voltage in Transformer?

16 Answers KESC, L&T, Torrent Power,

After doubling voltage from solar cells & use step down voltage transformer can we get high current output with low voltage.

0 Answers Transco,

What is static frequency control used in gas turbines

1 Answers

1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor

0 Answers

For more Electrical Engineering Interview Questions Click Here