Equipment with Different Voltage and Frequency

And not a single mention of the IEE regs - good work.

Could add that the current at 60Hz be a tad higher as well (for tad read a lot) other than that good comprehensive answer.

Is that kettle still on?

THe 380 volt source sounds like you possibly have a 380/600 three phase Wye system.

The frequency will mostly only affect the motor speeds and ideally going up from 50 to 60 Hz you would want to increase your motor drive voltages not drop them. On top of that if any of the loads are speed sensitive it would be necessary to change out gearing or speed changing parts of the drives to get the right ratios back.

Fortunately moving the voltage up would put you in the more common 480 VAC working range where a common boost type auto transformer would help you out a lot and if you do have a 600 VAC capable source getting 480 out of it is easy and can be done with most any common 480:120 transformer set up in a auto transformer configuration.

The rest of the issues you have will mostly just be about getting the correct system voltages to power the electronics and again that is not so hard to do with the proper ratios of buck or boost transformer use.

It is advisable to use a converter to change the voltage and frequency. We used to get US make equipment with 380 V 60 HZ but we always provide converter along with the machine otherwise we have to procure it locally otherwise the motors get burnt out in continuous use. There is all possibility of malfunctioning if the PLC

There are ways to convert both voltage and frequency to what all of this equipment desires. To do this will cost additional liability, time, effort and money. Why should one bother to do this.

Buy the right stuff for your local power in the first place. It will be cheaper and safer in the long run.

1. Are you sure it's 380/60 415/50? and not vise versa?

2. it will most probably effect motors only, cuasing the 50 cycles motor to turn 20%faster. And depending on the load, might get hotter. for example, the 50HP motor if operated at max load will have to be derated by 20% to a max of 40HP.