What is the Difference Between MCCB & ACB & VCB
Answer Posted / kantharaju k c
MCCB-- Moulded Case Circket Breaker
ACB -- Air Circket Breaker
VCB -- Vacume Circket Breaker
MCB we use from 0 to 64 Amp.
MCCB we use from 64 to 800 Amp
ACB we use above 800 Amp
More ever at much higher current level we use VCB because
at higher current the air around it get ionised and become
conducter which causes short ckt. so at much higher current
level we generaly use VCB.
Is This Answer
| Is This Answer Correct ? | 44 Yes | 20 No |
Post New Answer View All Answers
What is the relation between frequency and motor rpm?
How to Decide(calculate) Bush bar size for copper and aluminiam ?
pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )
What are the advantages of a three-phase system over a single-phase system?
to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power
why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?
How energy is generated in hydroelectric power plant?
how to test the electrical panel.ht lt mcc pcc.
I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???
for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance
Explain about retrofitting of machine tool.
Why we use 4-20 mA Analog signal for the PLC input? Why not 0-20 mA? Why not 5-25 mA?
how to increase senstivity of ct
In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?
How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).