armature winding

Magnetic Saturation

If we increase the mmf of a magnet, the flux density inside the core to of the is also increased. Now we can ask a question, whether there is any limitation of increasing flux density in the core of magnet with increasing applied mmf. The answer is yes. There is a limit beyond which there…

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What is Motor soft starter

Motor soft starter A motor soft starter is a device used with AC electrical motors to temporarily reduce the load and torque in the power train and electric current surge of the motor during start-up. This reduces the mechanical stress on the motor and shaft, as well as the electrodynamic stresses on the attached power…

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motor protection system

Motor Protection System

The electric motor is most essential drive in modern era of industrialization. From fractional HP AC motor used for different home appliances to giant synchronous motor and induction motor of up to 10,000 HP are used for different industrial applications. It should be protected against different electrical and mechanical faults for serving their purposes smoothly. The motor…

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electric traction

What is Electric Traction systems

Electric Traction Systems The system which use electrical power for electric traction system i.e. for railways, trams, trolleys, etc. is called electrical traction. The track electrification refers to the type of source supply system that is used while powering the electric locomotive systems. It can be AC or DC or a composite supply.Selecting the type of…

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