It is a short-hand description of the torque from a 3-phase motor. By the nature of 3-phase electricity, a motor using it gives a constant torque, unlike a single-phase motor which gives a torque that pulsates at twice the supply frequency. Usually that does not matter because there is enough inertia in the rotating parts to mask the effect.
You cannot use a 3 phase motor on single phase power. It will be limited in it's torque output, if it starts at all. The best thing to do is put the 3phase motor up for sale on eBay and buy a replacement single phase motor. If that is not an option you can get a converter, but they are expensive. Don't try to wire a 3 phase motor up to residential 220 if you don't know exactly what you are doing. Chances are you will burn your motor up.
In three phase: I = (three phase VA) / (sqrt(3) x (phase to phase voltage)) for single phase: I = (single phase VA) / ((phase to neutral voltage)) keep in mine three phase VA = 3 x (single phase VA), and phase to phase voltage = 1.732 x (phase to neutral voltage) Therefore the single phase and three phase currents are the same (ie, the three phase currents are the same in all three phases, or balanced). But don't get available current and available power confused (KVA is not the same as KW).
yes we can use as a single phase circuit because at practise directly the 3-phase circuit is made by combining the three single phase circuits
Yes. In a 3-phase motor, all 3 phases have the same current.
Capacitor helps a motor generate a starting torque. once the torque is produced and motor rotates capacitor acts as a current path. technically capacitor creates a phase difference.
It is a short-hand description of the torque from a 3-phase motor. By the nature of 3-phase electricity, a motor using it gives a constant torque, unlike a single-phase motor which gives a torque that pulsates at twice the supply frequency. Usually that does not matter because there is enough inertia in the rotating parts to mask the effect.
It is a short-hand description of the torque from a 3-phase motor. By the nature of 3-phase electricity, a motor using it gives a constant torque, unlike a single-phase motor which gives a torque that pulsates at twice the supply frequency. Usually that does not matter because there is enough inertia in the rotating parts to mask the effect.
sadasd
The 3-phase currents in the 3 coils of an induction motor will produce a steady rotating magnetic field.
It doesn't. A 3-phase motor will provides constant torque because the three alternating fields produce exactly the same effect as a single rotating field.
It doesn't. A 3-phase motor will provides constant torque because the three alternating fields produce exactly the same effect as a single rotating field.
The whole thing once you apply electricity.
One of the disadvantages of the 3 phase induction motor is that it requires a three wire supply. The other disadvantage is that the 3 phase induction motors have poor starting torque and high have in the rush currents.
A 3-phase motor produces a steady torque that does not pulsate. A 3-phase motor starts turning in the right direction when switched on without the need for a separate starting winding.
3 Phase induction motor because it produce high torque at starting
by adding external resistance to the shaft of rotor
yes the motor will run but will draw more current and the torque will be not constant means not smooth due to unbalanced current