A 2 pole motor has high speed due to less number of poles. Conversely, a 4 pole motor has low speed due to more number of poles. A 2 pole motor is more efficient on the flip side, a 4 poles motor is less efficient. A 2 pole motor has more RPM value; on the other side, the 4 poles motor has fewer revolutions per minute.
Which is better 4 pole or 6 pole motor?
For example, a 6 pole motor may offer more torque and faster acceleration, where the 4 pole motor might offer faster top speed and these variables are all unknown without a dyno and without exhausting all mechanical/electronic tuning options to find the optimal peak power curve for each motor under the same load.
How does a 2 pole motor work?
2 pole motor is a type of motor that has two magnetic poles or a pair of magnetic pole. Rotor of the 2 pole motor completes one cycle for every cycle of the source. A 2 pole motor shows a north-south configuration. 2 pole motor has high speed due to less number of poles.
What phase is a 4 pole motor?
A 4-pole, 3-phase motor. Figure 3. A 6-pole, 3-phase motor.
What is a 4 pole 3 phase motor?
. For example, for a four-pole, three-phase motor, = 4 and = 1,500 RPM (for = 50 Hz) and 1,800 RPM (for. = 60 Hz) synchronous speed. The number of magnetic poles, , is equal to the number of coil groups per phase.
What does a 6 pole motor mean?
On an induction motor, the number of poles determines the speed given the frequency of the power. For a 2 pole motor, at 60hz, it will spin 60 times a second, or 3600rpm. For a 4 pole motor, the speed is halved – 1800 rpm, 6 pole, 1200 rpm and so on.
Can a VFD reverse a motor?
When you turn on the motor, it may be running backwards. It is usually easy to change the direction of rotation with the VFD itself. Most VFD’s have a simple toggle command for forward and reverse. Unfortunately, when the motor is shut down and later restarted, it will restart running backwards again.
What RPM does a 2 pole rotor produce 60Hz?
Primarily used in concert with gas and steam turbines that must spin very quickly to maintain their momentum, 2 pole generators run at 3,000 rpm at 50Hz frequencies and 3,600 rpm at 60Hz.
How do you slow down an AC motor?
YES, you can easily slow down or reduce the rated speed by applying variable voltage or frequency. For slip-ring induction motors this process is very easy and it can be done by inserting a series resistance in rotor circuit (it will vary the motor torque also).
How do you tell a 2 pole from a 4 pole motor?
The main difference between 2 Pole Motors and 4 Pole Motors is that 2 Pole Motors have a single pair of magnetic poles whereas 4 Pole Motors have two pairs of magnetic poles.
What does 4 pole switch mean?
Four-way switches are used to control lighting from three or more locations. … There are four terminals that provide two sets of toggle positions on a four-way switch. Each set of terminals is one of the toggle positions. When the switch is in the up position, the current can flow through two terminals.
What is the pole in motor?
The motor drive energizes stator teeth one after the other to make the rotor turn, thanks to its magnets’ tendency to force alignment with the stator teeth. Simply defined, a pole is a north or south magnetic field of force that is generated by a permanent magnet or current passing through a coil of wire.