Interested to Buy Any Domain ? << Click Here >> for more details...
Triping principle of ELCB&RCCB? wht is the difference
between these two?
- 2 Answers
- 5375 Views
- I also Faced
- E-Mail Answers
Answer Posted / k.prakashchandra
ELCB requires earth connection. Earth wire is taken through
ELCB to the body of the appliance.If there is any leakage
current in the earth wire ,it will trip.4 pole or 2 pole
RCCB requires neutral.It works on the principle that vector
sum of the currents in phases and neutral is zero or current
balancing.If there is any leakage current to the earth it
will be sensed by only phase and not the neutral resulting
in tripping.3 pole RCCB is for a 3 phase load without neutral.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What are your future plans for the company if permanently employed?
What is self exciting?
How many types of losses occur in a transformer?
distribution is maximum done by a)radial b)network c) parallel d)b & c
What shall be the secondary output voltage if the primary winding of a 220/6V, 50 Hz transformer is energized by an 110V, 60 Hz supply?
What are all present producing cost of Per KWH of various Fuel?
What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks
Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha
HOW TO CALCULATE THE REGULATION OF 100 AND 25 KVA TRANSFORMER
armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?
3phase motor can be used as a Prime mover for alternator.
HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.
Why derivative controller is not used in control systems?
why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain
Why are short circuit ratings always 16kA,25kA,36kA and 50kA.Who has fixed these?
