What is difference between MCB,MCCB,ELCB and RCCB?
Brief description and why RCCB is costly?
- 3 Answers
- 8582 Views
- JLL, I also Faced
- E-Mail Answers
Answer Posted / waqa ahmed
mcb
miniature circuit breaker
mccb
moulded cage circuit breaker
elcb
earth leakage circuit breaker
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
An ISP is granted a block of addresses starting with 150.80.0.0/16. The ISP wants to distribute these blocks to 2600 customers as follows. a) 200 medium size businesses; each needs 16 addresses b) 400 small businesses; each needs 8 addresses c) 2000 households; each needs 4 addresses Design the subblocks and give the slash notation for each subblock. Find out how many addresses are still available after these allocations.
Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.
what is the minimum requirement gigaohms for the insulation test using 5kv in 300mm xlpe cable
george phenomenon of synchronous machine
What is the function of a neutral reactor.
Can 33kva/415v transformer be run underground? If the answer is yes why and if the answer is no why?
WHAT IS THE FAULT WHEN 100HP TURBINE MOTOR TRIPS, LIST THE FAULTS AND ITS TRABULESHOOTING TIPS.. MY AUTO TARNSFORMER STARTER TRIPS
whats the application of voltage regulation? and whats the voltage regulation's device?
write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.
How does cost of generation from hydropower plant compare with other sources of electricity?
what is the relative size of single and three phase?
Why do we require transformer with less specific weight if supply frequency is increased?
What is the physical significance of phase.. i.e. what is exactly the meaning in layman's language.. 1 phase, 3 phase etc ???
Give atleast 20 alternating current apparatus and devices.
What is zero of the system?
