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.
What is difference between 50 Hz and 60 Hz?
The primary difference between 50 Hz (Hertz) and 60 Hz (Hertz) is simply that 60 Hz is 20\% higher in frequency. For a generator or induction motor pump (in simple terms) it means 1,500/3,000 RPM or 1,800/3,600 RPM (for 60 Hz). The lower the frequency, the lower will be the iron losses and eddy current losses.
What happens if you connect a 50 hertz motor to a 60 hertz mains?
It will run with following problems for a 50Hz motor running on 60Hz: The core loss will increase and cause over heating of core. The motor speed will be higher, so shaft load will increase. Motor will be overloaded at rated load.
What is the difference between 460V@60Hz and 380V@50Hz?
In terms of iron saturation, 460V@60Hz and 380V@50Hz will have very similar results. On the other hand, a motor designed for 380V@50Hz will be operated at 20\% higher voltage and 20\% higher speed. Does that work? Probably for most motors, but you will have less margin than you would with a motor designed for 460V.
Can a 50 Hz motor be used on a 60 Hz system?
Frequently, the delivery of 50 Hz products is such that an alternate course of action, utilizing 60 Hz products, is desirable. The general guidelines for operating 60 Hz motors on 50 Hz systems relate to the fact that the volts per cycle have to remain constant with any change in frequency.
What is the voltage difference between 380 and 440 volts?
First, the 380 to 440 volt difference is greater than the generally acceptable 10\% margin for voltage range and would strain the capabilities of the insulation, if not compromise them altogether. Second, running your equipment at a frequency other that what it was designed for would change its operating speed and performance.
What is the V/Hz ratio of a 440V motor?
The V/Hz ratio of the original motor is 380/50 = 7.6, while the new supply is 440/60 = 7.33. So you will not over-flux the motor. (Question: where are you that you have a 440V supply?