MCB is used for high rating &MCB is used for lower
rating.What is technical difference between ACB & MCB?

Answer Posted / sasi karthick a

MCB is for lower voltage and lower currents. MCB short
circuit current level is 10kA only.

ACB is ever for lower and medium voltage and high currents.
Short circuit, making and breaking currents are so high.

Both are using air for quenching medium.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the accepted limit to increase the choosen transformer capacity over the load and why ?

2711


What is the role of feedback in a closed loop control system?

662


difference between high and low impedance BUS BAR relay??

1075


what is kvarh? Please define it With calculation General motors ?

706


what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?

1432






what is positive , negative & zero equivalent system resistance

1434


What are the types of piano switches?

1444


how electical engineer is related to apsrtc (general) post? if they ask a question in interview as why did u choose this job what shd be answer

1647


As we know induction squirrel cage motor torque Directly praprortinal to applied voltage in star connection & delta also. If I connect 55KW Motor to DOL starter in load condition does motor withstand the load & what will be the current withdrawn ? motor will not fail ?

1408


how can you calculate fault level ?

1906


what is cascade speed control device?and how this device control the speed of motors?

1560


i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com

1488


Brief working principle of stabilizer,application & safety precautions

5160


Why does inductive loads consume KVARs?

1566


What is transient response?

670