if you asked to choose a ckt breaker from MCB & MCCB for 32A
which one will be best and why??

Answer Posted / sahedul islam sagor

MCCB tripping Capacity is low when MCB. We know a machine starting current is high but its running current is normal if we used MCB it will trip instant with starting current but if we use MCCB it will take a little time for running machine.

Is This Answer Correct ?    0 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

1562


what the principle of sincroscope?how it works?when it needed?

1763


what do u understand from filter factor of reactor?

1526


what is the problem when i want to close a circuit breaker by local position it closes well.but when i close it in remote position it trips

1079


How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

1486






why 3 phase is converted into 2 phase using electronics circuit why not 2 phases are diresctly putted from the 3 phase transformer??

1678


Please brief working principle & construction of permanent magnet AC Servo motor

1741


How to configure the drives in PLC, through Profibus commnication. And to how to address it?

2357


explain supply side and demand side energy management with advantages & disadvantages

1676


If a shunt Dynamo has induced emf 100V and 0.4 ohm resistance and battery of accumulator of open circuit emf 110V and 0.5 Ohm resistance are in parallel what is common terminal potential difference?

4133


What fomula is used to calculate: 1. rated frequency withstand voltage, and 2. rated lightning impulse withstand voltage.

1300


HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?

3483


What are test values for an 63 KVA and 100 Kva Distribution Transformers for the following typical tests 1)Magnetic balance 2)Short circuit test 3)Open Circuit test 4)Vector group confirmation test .please give me the standard values for all the above tests.

2262


specific difference of ICT&Auto Transformer

1374


I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1506