what is the differance of acb and mcb and mccb

Answer Posted / jessy

All these are circuit breakers of different Current Ranges.

mcb is used for low current ranges, avaiable uo to 63A
mccb is used for medium current ranges up to 3200 A
acb is used for more higher ratings.

Is This Answer Correct ?    43 Yes 12 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

In single phase capacitor motor, if the motor rotate reverse direction then how much power will be consumed by the motor and why?

1480


what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:

1535


what is two point starter?

1647


If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?

1694


what is the voltage between earth & neutral in 3 phase electrical connection.

1467






wht is embedded systems? what is new inthis field?

1553


How to calculate phase to phase difference ?

1722


Wind mill

1438


Why Ac Systems Are Preferred Over Dc Systems?

799


Why are short circuit ratings always 16kA,25kA,36kA and 50kA.Who has fixed these?

3825


I need model question papers for RRB section engineer Chennai... Please send to my E-mail Id:- maitheerainbow@gmail.com

1479


It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.

2982


can anybody tell me that for p.f. Improvment we use capacitor banks but how to decide its capacitance. As we all know how to calculate kvar but what abt capacitance value

1401


what is residuel magnetism. and how order lead acid batteries for 24 volt. emergency lighting system.

1571


What are the protections for safe running of electric generator?

1724