What is pole in rotor?

The projected poles are made up from laminations of steel. The rotor winding is provided on these poles and it is supported by pole shoes. Salient pole rotors have large diameter and shorter axial length. They are generally used in lower speed electrical machines, say 100 RPM to 1500 RPM.

How many Poles does a three phase generator have?

In a 3-phase AC, 60 Hz, electrical power generation system, the rotating electromagnetic field of the stator assembly in the 2-pole, 3-phase AC generator will complete 60 revolutions in one second.

How does a rotor work in a generator?

The rotor, acting as the armature, rotates in the field, cutting the lines of force and producing the desired output voltage. The output voltage is taken from the rotor by the slip rings and brushes. One slip ring is attached to each end of the rotating loop.

What is pole in generator?

2 pole generators turn mechanical energy from turbines into alternating current electrical energy used by utilities and industries. 2-pole generators have a rotor that works like an electromagnet, with one north and one south pole. The stator coil is then connected to the generator terminals.

What is salient pole generator?

Salient pole Generators will have large diameter and short axial length. Pole shoes cover 2/3 of the pitch. Salient Poles are laminated in order to reduce eddy currents. They are used in hydraulic turbines or diesel engines. Salient Pole Synchronous Generators are employed in Hydro-Power plants.

What is a generator rewind?

cables (windings) in both the stationary and rotating portions of the generator. • Windings are supported by a stack of thin layers of steel. • During a rewind, the old copper windings and steel are removed and replaced.

How much does it cost to rewind a generator?

Because of the difficulty of rewinding a generator motor, leave it to an experienced professional. Most pros will charge between $300 and $700. Electric motors periodically need rewinding to ensure reliable and efficient operation.

What is the use of the slot in the rotor?

5. Which condition satisfies the quiet operation in machines? Explanation: The number of rotor slots are decided for quieter operation of the machine. The number of rotor slots differs from the number of stator slots by more than the number of poles.

What is the difference between rotor and shaft?

The rotor shaft , more commonly called the “mast” is the vertical sharton which the rotor head and blades are attached.it comes up from the transmission and it is what spins the rotor and supports the entire flight loads of the rotor down into the helicopters structure.