What is the suitable rating of MCB used for 1.5 Ton A.C &
why?

Answer Posted / bangalor

16amps mcb use

Is This Answer Correct ?    15 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Why is the frequency not changed during transformation of electrical energy in a transformer?

832


I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?

1528


WHAT IS MEANT BY SHEATH VOLTAGE IN 132Kv cable?

1817


WHAT IS THE FUNCTION OF SHORT CIRCUIT MAINTENANCE CT

2020


A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

693






Define demand factor?

654


What is the power factor of an alternator at no load?

836


xpression 'document.FrmQF.myemail' [

1585


What do you mean by distribution transformers?

660


How to measure the earth resistance value in a concrete pavement(flood light area)?

1722


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 TELL ME ABOUT QUESTION PAPER OF UPCL ENTERENCE EXAM.

7018


any one can explain the stages of a knee point which is taken during ct magnetising curve.

1315


what is difference between line differential and transformer differential?

1233


How to do cable sizing calculation for 750 A Neutral Earthing resistor for 33kv. the 33kv cable going to swbd. is 630mm2 3 runs.

4319