A motor works on 30 killo watts.how much ampers will be
required if it works on 440volts?

Answer Posted / irfan ahmad

V=440 V
P=30 Kw = 30000 w
we know that ,
P=1.732VI*(power factor)
I=30000/(1.732*440*0.9)
I=43.7 amps [power factor in application is 0.9]

Is This Answer Correct ?    4 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the chemical name and formula of refrigarent R-134a.

1784


What Is Sampling?

784


what is the difference between skin effect

1734


how to build a network which step down 415v to 1v rms

1478


Brushes are placed at magnetically neutral axis,when brushes reach that point,the armature conductor gets shorted,but it can be seen that the dc supply is also shorted,wont that get damage? help me plz

1814






what could be the RMS value and average value of a 4 phase sine wave?

1420


How to measure current and voltage in an ELV circuit

3620


What is stepper motor. What is its uses?

660


According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.

3700


Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.

1239


sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com

1409


How to improve fuel cell in a distribution system?

1530


Is neutral transformer can be called as control transformer?

1530


what is the working principle of a DG Set, Alternator, & exiter

9751


Dear all, how we select the cable size according  to current with or without including different correction factor , is there any direct method for sizing of cable... 

1709