Windage losses in Electric Machines
Windage is the name usually given to air resistance inside rotating electrical machines like generators or motors. Windage losses also occur in machines such as turbines and gearboxes. When
Electrical
What is meaning of 5P20 in current transformer?
There are three types of current transformers which are used for various applications. 1. Metering Purpose2. Protection Purpose3. Special Protection Purpose The particular class of
Losses in DC Machine – Types of Losses
What is a DC Machine? A Direct Current (DC) machine operates using direct current (DC) to either: These machines play a crucial role in various
DC Motor or Direct Current Motor
What is DC Motor? DC motor or Direct Current Motor converts electrical energy into mechanical energy. It is used to drive the mechanical loads. The
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