How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts

How to run 1ph motor(230 VOLTS its full load amps is 4.5
ampa))with 480 volts main(we didn hav neutral)Thn we go for
step down transformer.Our load 10 amps,so we conisder this
amps in primary are secondary side

Question Posted / guest

1 Answers
3700 Views
I also Faced
E-Mail Answers

How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts main(we didn hav neu..

Answer / h r jadhav

when line voltage 480 is used across the primary of step
down trf having secondary is 230 volts then 1 phase motor
will load same current to lv side however it will load the
primary with respect to tf ratio. so if u have tf rated 10
amp for primary it is welland good.and if it is for
secondary it is well.

Is This Answer Correct ?

1 Yes

3 No

Post New Answer

More Electrical Engineering Interview Questions

What is the criteria for selecting the voltage classes of an AC Induction Motor.The KW rating above/below which ht/lt selection is made may be provided in details.

0 Answers DAE,

How Calculat the Cable Sizing of HT/LT System & Explian by one Exampal?

1 Answers Siemens,

what is difference between electrical and electronics

2 Answers

what is control supply rating of a machine

0 Answers

WHAT SHOULD BE THE RATING OF generator required to run a pump motor of 45 Kw.

1 Answers Jauss Polymers,

What conditions are required for transformer to operate at low frequencies ?

0 Answers

what are the tests comes under the type test, what tests comes under routine tests.

0 Answers

what is closing resistor in circuit breaker? why it used?

3 Answers

what happen if the load connected to the induction motor is taken away? the same question for synchoronous generator in synch i think that the the exitation voltage will appear on the terminal only if so plz answer me

0 Answers Escorts,

a distribution transformer(3 phase)supplying 440volt per phase.now suppose one of phase voltage(230volt) becomes zero.what will be the cause ?

3 Answers

difference between power surge and switching transient

0 Answers

why do we need the body earth?

4 Answers

For more Electrical Engineering Interview Questions Click Here