I need to get power to a machine in a weld shop. The building is supplied with 480v delta. There is a 480v bus duct that runs along where the machine is going to be installed. Power supply line has to be large enough to handle 245 full load amps at 480v, 3 phase, 60 hertz. Main circuit breaker in control 300 amps.

Single phase to three phase converters do this by using a single phase two line supply of power from the utility, creating a third line of power. If you have any questions about phase converters, give our team a call by phone at (800) 417-6568 or fill out our contact form to receive support. Just curious: What do you have in mind for a frequency converter? A 600hp, 12pole synchronous motor driving a 600kva,10pole alternator. Likely considered old school, but certainly produces smooth, clean power. An inverter might work. You can set the output freq anywhere you want. Power with a 500V, 1200A rectifier. VFDs don't make very good As you can see, the more amps and volts you have, the more powerful 3-phase electric motor you have. Quite similarly, a higher power factor is proportional to higher power output. You can use this example to see how the 3-phase power calculator works: A 100 amps motor on a 240V 3-phase circuit with a 0.9 power factor produces 37.41 kW of To connect the power circuit: Interconnect the 100-230V AC single-phase supply of power that comes from the 2-P MCB to the VFDs using two wires labelled “L” (Line or Phase), “N” (Neutral), and Ground/Earth. Attach the three-phase motor terminals (U 1, V 1, and W 1) to the VFD’s U, V, and W output terminals. Check that the phases are
This serves two purposes; it allows for voltage drop at the motor terminals and it falls within the NEMA MG-1 tolerance specifications (+- 10%) for the legacy systems that are still out there. For example, 440 +10% is 484, 480 - 10% is 432 so 460 falls smack dab in the middle and everyone is happy. The only time you will see 440V on a motor now
Most 480V power systems are a Wye configuration because. Phase to neutral voltage is 277V or below 300V. It can power 277V single phase lighting loads. A 480 3 Phase Wye power system is called 480V 3 Phase 4 Wire and 480Y/277V. These are technically more accurate because they refer to the neutral. The “4 Wire” in 480V 3 Phase 4 Wire refers
Or run it the way it is! A 575v rated motor will run in 480 volts, except you will have to down grade the overall motor output torque by .64. The available torque is porportional to the square of the voltage. For hobby use you may be just fine as long as your not going to be doing any real hogging or hard cutting.
When a motor nameplate indicates that a motor is rated 220-440, 230-460, or 240-480, it means the motor is designed to run at either the low or high voltage rating. The motor nameplate will indicate the connection diagram for the low or high voltage. 220-240 and 440-480 are nominal voltages.
600Y/347v 3-phase 4-wire or 600v delta. Naturally, all the line voltages above are the product of the phase voltages x root 3 (1.732). This is a mathematical given, as the phase voltages are 120deg displaced from each other and are non-linear loads. For some reason, American and overseas manufacturers refer to the higher voltage as "575" volts.

A 15kW motor running at 380V 50 Hz, 1450RPM is 98.8 N-m (15kW x 9550 / 1450RPM = 98.8 N-m). We already know that if the V/Hz ratio remains constant, torque remains the same. If the voltage is increased to 460V so that torque remains constant when the motor is running 20% faster at 60Hz (1740 RPM), you get 98.8 * 1740/9550 = 18kW.

2) Mill - 230 60Hz 2hp (motor plate says it can run at 50hz 380V) 3) Surface Grinder - 220/440 60Hz 1hp 4) Surfacer - 208-220/440 60/50Hz 2hp I've attached photos of the motor plates. My options for each one are: a) replace the motor b) wire them for 440 and run at decreased frequency and voltage of 380/50 c) use a VFD to output 60Hz at 220V or
That will make it 240V 3 phase. Connect a capacitor as shown to drive the 2nd phase. The torque characteristic won't be as good though. Use the rated current on the name plate & multiply it by √3 to calculate the capacitor value. Use a capacitor rated for motor run use, or power factor correction capacitor (s).
Original motor with 60Hz (V) 480v. 460v. 420v. 440v. 380v. Be used in 50Hz power supply with voltage reduction (V) 400v. 383v. 367v. 350v. 317v. The output power is 83% of the original power. Be used in 50Hz 380v power supply directly. It can be used with reducing output power. It can not be used for a long time, or even can not be used.
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    • can you run a 380v motor on 480v