Why slip ring induction motor is not started with its slip ring short circuited?
The rotor of the slip ring induction motor is connected to the external resistances. When the motor is started, the total external resistance gets added
Why the rotor winding of three phase wound rotor induction motor is star connected?
The stator can either have a star or delta connection. Many motors have a winding scheme and coils with six connections that connect the windings
What is Magnetic reluctance – Definition
The reluctance is the property of the magnetic material, which provides opposition to the flow of magnetic flux through a given volume of space or
Effects of Harmonics on Transformers
The transformer does not generate harmonics. The transformer has primary and secondary windings, which are inductive. The inductive load draws current linearly with the applied
What is Self Inductance? Definition,Formula, and Explanation
Definition: Self-inductance is the inherent property of the coil that opposes variation in the current passing through it. The coil opposes the change of current
What are Triplen Harmonics and where do they happen?
Triplen harmonics are the odd multiples of third harmonics. The triplen harmonics orders are 3,9,15,21,. The triplen harmonic frequency is 150Hz,450 Hz,,750Hz etc. What are
PRD of Transformer|Pressure Relief Device for Transformer
Why Pressure Relief Device(PRD) for Oil Filled Transformer? The winding of the transformer is housed in the transformer oil tank. The oil is used in
Why does not Transformer Work with DC Supply?
This article describes why DC is not used in transformers. The transformer functions on the principle of Faraday’s Law of electromagnetic induction. When AC is
Why Induction Motor is called Rotating Transformer?
Induction motor as a rotating transformer: The rotor of the squirrel cage induction motor is short-circuited by end rings. When a three-phase supply is fed to
Zener Diode as Voltage Regulator
The Zener diode, as a voltage regulator, is used to get the fixed DC voltage for electronic circuits. In this post, we shall learn designing