A run capacitor and a starter capacitor are not the same thing. A run capacitor is energized the entire time the motor is running, and a start capacitor is not. A run capacitor is one that changes the current on the windings of a single phase AC induction motor to create a rotating magnetic field to energize a second-phase winding. A start capacitor increases starting torque, allowing a motor to be turned on rapidly. It stays in the circuit only long enough to bring the motor to 3/4 of full speed. Some motors then continue to run with a run capacitor.
with 3 phase the rotating field is already set up when power is supplied with single phase you use a capacitor and a second winding to set up the rotating field
If a capacitor is directly connected across a motor then the capacitance of the capacitor will be calculated as under.Q = 0.9 * Sqrt (3) * V * I0.Here "V" = Supply voltage & I0 = No Load Current of Motor.AnswerThere is no need to connect capacitors across a three-phase motor.
No, The windings in single phase and 3 phase are different. A single phase motor may use a capacitor "start" circuit to create a phase shift between windings and determine the direction it will spin. A 3 phase motor has the windings configured to create a directional rotating field which determines the rotation. The capacitor in a single phase motor is not used to convert it to 3 phase or vice-versa.AnswerIf you have access to a three-phase supply, then you alsohave access to a single-phase supply by connecting your motor to any two line conductors, or between any one line conductor and the neutral. But you MUST ensure that the motor's rated voltage matches one or other of the single-phase voltages available -that depends on what country you live in, because three-phase voltages vary from country to country. And, obviously, if you don't know what you are doing you must consult a qualified electrician.
Yes
how to connect power capacitor with 3 phase motor
Just use any two of the three terminals that are available, this will give you a single phase capacitor.
The single phase induction motors are made self starting by providing an additional flux by some additional means. Now depending upon these additional means the single phase induction motors are classified as: 1.Split phase induction motor. 2.Capacitor start inductor motor. 3.Capacitor start capacitor run induction motor. 4. Shaded pole induction motor.
A run capacitor and a starter capacitor are not the same thing. A run capacitor is energized the entire time the motor is running, and a start capacitor is not. A run capacitor is one that changes the current on the windings of a single phase AC induction motor to create a rotating magnetic field to energize a second-phase winding. A start capacitor increases starting torque, allowing a motor to be turned on rapidly. It stays in the circuit only long enough to bring the motor to 3/4 of full speed. Some motors then continue to run with a run capacitor.
A single phase motor does not actually require a capacitor. This device is only needed when a split phase motor is utilised. A split phase motor needs a device to regulate the power factor associated with the split phase.
with 3 phase the rotating field is already set up when power is supplied with single phase you use a capacitor and a second winding to set up the rotating field
If a capacitor is directly connected across a motor then the capacitance of the capacitor will be calculated as under.Q = 0.9 * Sqrt (3) * V * I0.Here "V" = Supply voltage & I0 = No Load Current of Motor.AnswerThere is no need to connect capacitors across a three-phase motor.
Use VFD to make 3 phase from single phase source.
No, The windings in single phase and 3 phase are different. A single phase motor may use a capacitor "start" circuit to create a phase shift between windings and determine the direction it will spin. A 3 phase motor has the windings configured to create a directional rotating field which determines the rotation. The capacitor in a single phase motor is not used to convert it to 3 phase or vice-versa.AnswerIf you have access to a three-phase supply, then you alsohave access to a single-phase supply by connecting your motor to any two line conductors, or between any one line conductor and the neutral. But you MUST ensure that the motor's rated voltage matches one or other of the single-phase voltages available -that depends on what country you live in, because three-phase voltages vary from country to country. And, obviously, if you don't know what you are doing you must consult a qualified electrician.
Yes
A three-phase motor will not start if one or two phases aren't connected. If while running one or two phases "drop out", it will continue to run for awhile, but will eventually burn out, unless connected to a motor saver.
You probably need a 5hp or 7hp motor. Look for HP rating o the 3 phase motor and select the same for single phase. 3 phase has same power but is more efficient at electricity use. Also consider a 3 phase converter. It allows a 3 phase motor to run on single phase service.