Interested to Buy Any Domain ? << Click Here >> for more details...
tell me the operation of ELCB. How it detects a fault?
- 4 Answers
- 7818 Views
- I also Faced
- E-Mail Answers
Answer Posted / rupali
EARTH LEAKAGE CIRCUIT BREAKER WORKS IF IT GETS ANY CURRENTS
ACROSS EARTHING & IT DETECTS CURRENT THROUGH THIS OPERATION:
WE KNOW THE VECTOR SUM OF THREE PHASES IS EQUAL TO NEUTRAL &
EQUALS TO ZERO.IF EARTH DETECTS ANY CURRENTS THEN THROUGH
NEUTRAL FLOWS SOME AMOUNT OF CURRENT AND THE ELCB TRIPS OUT.
| Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
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.
define the active power?
whether fibre optic cable in high voltage earth conductor is used for protection circuits
What are the components connected in between the power supply coming from an electric pole to HT & LT Panels in a large commercial building or how the power supply connected from Electric pole to Transformer & then to the HT & LT panels of a building? Please send me answers via mail, my id is yogiagarwal@gmail.com. If possible, please give a line diagram.
how many electricity poles are there and what are the names and their sizes.
What is the function of interposing current transformer?
why occ characteristics of generator is also called as magnatization characteristics ?
Can I use distributon class/transmission class Lightning arresots for protecting the building? If not why please explain?
why the neutral point in connnection oscillates?
what do you mean by class PS CT and what are technical details needed for calculating it?
Inductor and capacitor........power in one phase and ...... in it another phase.
What are the parts in a inverter?
What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current
Write masons gain formula.
Thumb rule of cable size(rm>30 rm)X multiplying factor=ampere
