A motor for use on 480 is rated 460v. NEMA voltage tolerance is + – 5 % ( I think, it may be 10 %) the higher voltage can saturate the windings and increase amp draw.
Is 440v the same as 480v?
480V is the voltage between phases of a 3-phase “Y” circuit that’s 277V from hot to neutral. In keeping with 110V versus 120V strangeness, motors intended to run on 480V three phase are often labeled as 440V.
Can a 415v motor run 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.
Can you run a 380v motor on 480v?
The drive will accept 380V, no problem. But the output voltage will be limited by that as well, standard VFDs cannot provide an output voltage that is greater than the input voltage. So if your motor is designed for 480V, you will end up with a limited speed or a loss of torque.
Can you run a 460v motor on 400v?
Operating a 460 volt motor on 400 volts is very much like a 230 volt motor being supplied with 208. Unless it’s heavily loaded, it’ll run just fine. Since it’s on a VFD, you could program the max HZ to something like 55 or so and it’s almost certainly be ok.
Is 480 volt always 3 phase?
480V can be classified as single and 3 phase circuits. 480V 3 phase circuits are the most common power systems used in US industrial plants and are considered to be low voltage power systems.
What is 440v 3 phase?
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. 440V in 3 phase system is line to line voltage if you calculate per phase voltage then you will get approximate same value as for 1 phase system.
Can a 60hz motor run on 50hz?
For a generic answer: yes you can, IF: you reduce the voltage by 50/60, the equipment doesn’t care, you don’t care about potentially overheating the motor, the process/load can tolerate the lower speed/torque, etc.
Can 380v motor run on 440v supply?
A 380V motor can run on a 440V power supply. Running a 380V motor on a 440V power supply (at increased voltage) will bring up a few problems: Increased voltage drop while starting will probably make lights flicker. The starting and maximum torque will be increased resulting in a possible shearing of the coupling.1 мая 2019 г.
Can you run a 50 Hz motor on 60 Hz?
If the motor is a 50Hz unit and you’re going to be using it in 60Hz-land it will spin 20% faster. Horsepower(hp) is proportional to Torque times RPM. Since the motor’s torque is not going to change appreciably with an increase in frequency it will now provide 20% more hp.
Can 400v motor run on 415v supply?
400V Motors will operated on 415V.
Can you run a 380v motor on 415v?
If they are made to operate at a wider range of voltage, then yes …… 380 volt is also can be used. Originally Answered: Can a 415v 3-phase motor be used or ran by a 380V 3-phase power supply? … Or 15% Voltage and 1% Frequency is acceptable.
What is difference between 50hz and 60hz motor?
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 400v 50hz motor run on 480v 60hz?
This means that if you have motor designed for 400V and 50Hz and you want to connect it into power supply with 60Hz, your maximum allowed voltage will be: 400 / 50 = U2 / 60 => U2 = 60 * 400 / 50 = 480V which is higher than 400V. So, as you can see after calculation, you can supply your motor with 480V and 60Hz.
Can I run a 460v motor on 380v?
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.