# You asked: Can a 380v 3 phase motor be used or ran to a 440v 3 phase supply?

Contents

So the simple answer is no. The more complex answer can be a yes if you know the loading, the heat dissipation, and voltage insulation that these are within the capability of the motor.

## Can 380V motor run on 440V supply?

Firstly a 380V 50Hz motor will run quite happily on 440V 60Hz – that’s typically why they have such dual ratings – since the impedance is more or less a linear function of frequency 380×60÷50 = 456V no problem. However it is going to run 20% faster (and develop 20% more power).

## Can you run a 380V motor on 480V?

So the 380v motors will be OK with 480v even if they aren’t multi-voltage motors? Yes, the “volts per Hz” is the same. The problem lies in the strike rate….. it will be 6/5 of the original when running at 60 Hz. If that is a problem, as you suggested, then you can change the pulley on the motor.

IT IS INTERESTING:  Can you tow with a petrol car?

## Can a 380V three phase used 415V of electricity?

This is absolutely OK. For a voltage rating if you notice there is a tolerance. For voltage we have 10% tolerance. So 415V ±10% which implies the range of 373.5V to 456.5V will be OK in the range for the Motor to operate.

## Can I use a 380V motor on 460V?

A three phase 460V motor operating at 60 Hertz has the same V/Hz ratio as a 380V motor operating at 50 Hertz – approximately 7.6V/Hz. … As long as the load torque does not change between the two speeds (60Hz/50Hz), the motor will draw the same current at both speeds, and no harm will come to the motor.

## Can 400V motor run on 440v supply?

You should be ok. You’re slightly above the design voltage maximum but the higher frequency will make up for that.

## Can you run 380V motor on 220v?

As stated above, you can take a 380v, 3 phase star connected motor and run it as a 220v, three phase delta connected motor. Going back to basics it is the current driven by the voltage that creates the flux. … In closing, there are single phase inputs to three phase variable frequency drives (VFD).

## Can a 400V 50Hz motor run on 480V 60Hz?

Giving 400V 60Hz to a motor designed for 400V 50Hz will kill it. A motor designed for 400V 50Hz has the same V/Hz ratio as 480V 60Hz; 8:1.

## What happens when you run a 60Hz motor on 50Hz?

When a 50Hz single phase motor is brought to 60Hz the start function can be upset because the motor reaches the centrifugal switch speed 20% earlier than normal. When it does, the starting torque of the motor is suddenly reduced. It could fail to speed up further and never reach normal running speed.

IT IS INTERESTING:  Your question: How are DC motors generally classified?

## Can a 50Hz motor run at 60Hz?

It will run with following problems for a 50Hz motor running on 60Hz: The core loss will increase and cause over heating of core. As the core loss will increase, the Power Factor of motor will reduce. The motor speed will be higher, so shaft load will increase.

## What is the difference between 220V and 380V?

The same 220 volt AC contactor can only be used in a line with a control voltage of 220 volts. … The difference is only 380V and 220V on the line voltage, the wiring is 220V’s coil A1 and A2 1 zero 1 fire, 380V’s A1 and A2 are connected with two fire lines.

## How many volts is a 3 phase line?

3 phase system is expressed with line voltages. The line votage is 440 volt. Also the voltage between any one phase and neutral for a 3 phase system is 240 volts.

## Which is better 50Hz or 60Hz?

The primary difference between 50 Hz (Hertz) and 60 Hz (Hertz) is simply that 60 Hz is 20% higher in frequency. … Lower the frequency, speed of induction motor and generator will be lower. For example with 50 Hz, generator will be running at 3,000 RPM against 3,600 RPM with 60 Hz.

## Can a 380V motor run on 400V?

You can use a 380V equipment on a 400V system with confidence. Take note it’s just a little over 5% of the voltage and most motor should be happy with that.

## Can you run 400V motor on 480V?

Electrically, the motor will work fine. The ratio of Voltage and Frequency is exactly the same (400/50 = 8.0, 480/60 = 8.0), so the motor will work at 480V 60Hz and provide it’s full rated torque at nameplate FLA without issue.

IT IS INTERESTING:  You asked: How long can transmission fluid be stored?

## Can I run a 460V motor on 415V?

In a 415V 50Hz environment, a 460V 60Hz motor will be just fine as long as you don’t expect it to produce nameplate horsepower. The limit on horsepower will be nameplate times 415 divided by 460. Or, another way of looking at it is to expect the same torque from the motor but at the lower speed.