how to select the power contactor in Diffrent AC motors.

Answer Posted / navnit bhimani

Motor full load current=H.P.x1.5 in three phase line
Motor full load current=H.P.x4 in single phase line
you can select 20% over size than full load current.

Is This Answer Correct ?    30 Yes 8 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

define digital electronic

1572


why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)

1470


What is the method for testing the differential protection stabilty in generator? When the time of starting What will happen if differentail protection connection wrong means?

1764


what are the necessary basic electrical topics to learn for mechanical engineer to deal practical problems.

1770


What are the causes for the failures of sandwich type (Al) busducts?

1423






what is the usage of microcontroller in the panel board?

1549


what is the affect of earth's magnetic field on the frequency used in aircraft???

1541


How to calculate the heat load for a electrical room

2602


Can i use the B-curve MCB instead of C-curve MCB

1595


we specify current in case of feeder but in case of distributor voltage, why?

1377


what is the value of combined earthing in general electrical circiut?

1455


how works inductive &capacitive sensors?

1534


what is current check gurd relay?

2024


how to calculate the earth fault current

1959


THERMAL CAPACITANCE IS MEASURED IN..................................................

1695