20 HP Three phase 360 volt what is the amps
Only with a 3 phase transformer.
Answer for UK and countries running a 50 Hz supply service.The voltage potential of 380 volts is not common to North America.It will probably be difficult to tap into the plug to get the voltage.If you have a three phase 380 volt supply from a source then you can obtain a single phase voltage of 220 volts from it. 220/380 is a wye voltage connection. 380 divided by 1.73 will give you 220 volts. L1 - N = 220V, L2 - N =220V, L3 - N = 220V. L1 - L2 = 380, L2 - L3=380, L3 - L1 = 380.
The connection wiring diagram is usually on the inside of the motor's junction box cover. If the motor has three wires at the junction box then these wires are connected to the three incoming supply wires. If there is more than three wires, check the motor's nameplate to see if the motor is a dual voltage motor.
A voltage of 380 volts is a three phase voltage. On a three phase four wire system, each phase leg to neutral (grounded) will give you 220 volts. This voltage is obtained by dividing the phase voltage by 1.73, as the phase legs are generated 120 degrees from each other. Square root of three is 1.73 divided into 380 equals 220 volts.
Voltage phase to phase in a 380V 3-phase system refers to the voltage measured between any two of the three live conductors in the system. In a balanced 3-phase system, the phase to phase voltage is equal to the line voltage, which is 380V in this case. This voltage is commonly used in industrial and commercial applications to power heavy machinery and equipment. It is important to note that the phase to phase voltage is higher than the phase to neutral voltage in a 3-phase system.
The three phase voltage is 380 the hertz is 50
Dear Sir,I want to know that how much draw starting current of 380 volts 3 phase 50 hertz AC motors as per rating values?
no it will start to smell after a few min.
It is probably a three phase 50 Hz motor.
Use a transformer.
You cannot run a three phase motor on single phase power. You'll burn the motor up within minutes. By the way, I've never seen or heard of a 380 volt motor. Do you mean a 480 volt motor? If so, the only way you can power it is with the correct full voltage and a 3 phase power supply.
A 460 VAC three-phase motor can be driven by a 380 VAC three-phase supply, but this may result in reduced performance. The motor may operate at a lower voltage, leading to decreased torque and efficiency, and it might not start under load. Additionally, the motor could experience overheating if it is not rated for such lower voltage operation. It's crucial to consult the motor's specifications and consider using a step-up transformer for optimal performance.
You can get a buck / boost transformer which will step down the voltage. What will be important is phase supply.
f your supply is a Y connected transformer (4 wires COM) with a phase to phase voltage of 380 volts (voltage between any two of the hot wires) , utilizing a true Y connection to your load (connections of one hot lead and neutral for each phase to your load will give a voltage of 380 ÷ sqrt 3 = 380 ÷ 1.732 = 220 volts.
Only if you want to damage it. "277" Volt 3-phase will usually mean 277 from each phase to neutral, and 480 from phase to phase. By "230 3-phase", you likely mean 120 phase-to-neutral, and 208 phase-to-phase. If you really mean 230, then you are probably NOT talking about a three phase motor.
To calculate the amperage per phase, you can use the formula: Current (A) = Power (W) / (Square Root(3) x Voltage (V)). In this case, for a 45 kW unit at 380 volts, the amperage per phase would be approximately 70 amps.
Only with a 3 phase transformer.