Can I Run a 380v Motor on 460v

Now you have to watch this as it needs to get upto speed before it. Current will vary but output power should be.

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60hz will make the 50hz motor run faster than it was designed for damaging all the internal parts and the.

. Dan with 380 Vac output from the VFD and the motor looking for 460 Vac you will be able to supply the motor with the correct VHz ratio up to about 80 of its normal speed range 380460 0826. In both cases the VHz ratio is 76 VHz. Motors for use in the US are designed around our utility voltage of 480V 60Hz so 4606076VHz.

The biggest issue will likely come into play if the load is a centrifugal pump. A 460V 60Hz motor is 46060 76VHz as well so that means there is no problem doing that changeover from that standpoint. If for example the motor is 460 Volts and 60 HZ it wont do well at 380 Volts and 60 HZ but itll do fine at 50 HZ.

But of course you have to ask the minimum speed this motorcould run since it will cause overheating of winding when usingVFD. Yes As long as the vf ratio is same 46060 76 and 3806076. Then if we reduce that by the above square factor you.

NEMA rated motors are designed to operate at rated output power even if the voltage varies by 10. Im not concerned really with operating a 380V50Hz motor on 460V60Hz Im concerned about the torque the load requires at the higher speed. Chances are that the motors are actually suitable for both voltages and the maker can issue you with new data plates to cover the revised voltage.

It can not be used for a long time or even can not be used. The voltage delivered at the motor terminal is averaged at 460V. You are right your upper speed limit will be limited but only IF you want full torque at 60Hz.

It can be used with reducing output power. Now run at 60HZ 380Volt brazil volt drop from 480 Volt to 380 Volt at the same 60 HZ. What will happen due to the 400V limit is that if you go up.

No you cant dont even try it. This motor is design for run at 480V60HZ and also at 380V50HZ. Your motor is designed around 380V 50Hz and 3805076VHz.

For a 460V 60Hz motor that needs to be 761 to avoid saturation and unnecessary heating of the motor. A three phase 460V motor operating at 60 Hertz has the same VHz ratio as a 380V motor operating at 50 Hertz - approximately 76VHz. A 460V rated motor will work up to 504V and as low as 414V.

The motor would be able to produce rated torque at both frequencies only apply if the VHz ratio is constant meaning that at 50 Hz the supply voltage would need to be 380V and at 60 Hz the supply voltage would need to be 460V. The inductive reactance is higher at 60Hz but the applied voltage is. So if your system can take the added flowpressure use 380V 50Hz motors and design around minimum requirements at that speed then live with the added pressure when used in the US.

Original motor with 60Hz V 480v. GoHz frequency converter accepts three phase 380v400v415v440v460v480v 50Hz 60Hz input the output is vary from 0-520v 40-120Hz also can be customized for input output for specific applications. Be used in 50Hz 380v power supply directly.

You might need to limit the max HZ in the VFD program. How can you run a 380v 50hz motor with 440v 60hz source. As countryman said you motor will run faster no matter what but you dont necessarily need to buy a.

Running at lower voltage will reduce starting current and torque but lets say there is still plenty. As to running currents for a motor running on 480V vs 460V when running at the lower voltage the motor will draw. The output power is 83 of the original power.

Speak to the maker of your motors first of all. Motor torque varies by the square of the applied voltage at a fixed frequency so your output torque will be 82 x 82 or 67 of the normal available torque. The voltage delivered at the distribution point is averaged at 480V.

So a motor rated at 480V will work at voltages up to 522V and as low as 432V. Be used in 50Hz power supply with voltage reduction V 400v. You can go to the Contact page to get a price.

In other words it should run fine up to 80 speed but above that the VHz ratio will start to decrease because the VFD cant put out any more voltage to maintain the. So assuming it is a 4 pole 1800PRM motor and HP tq x RPM5250 then design torque at 460V 5250 x 320 1800 93333 ft. So just reprogram the drive to what the new motor is 460V 60Hz and it will adjust.

It is impossible to deliver the same voltage to the use point as at the distribution point since there is always some distance involved that results in voltage drop. Lets assume its a 3 phase induction motor and a reasonable size - say 100kw or more. A 460V 50Hz motor however would be 460.

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