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2 Pole Elementary DC Machine

2 Pole Elementary DC Machine: Figure 5.13 shows a 2 Pole Elementary DC Machine with a single coil rotating armature. It may be seen that the field winding is stationary…

Rotating Electrical Machines: We Know that electromechanical energy conversion takes place whenever a change in flux is associated with mechanical motion. Speed voltage is generated in a coil when there…

Field Energy and Mechanical Force

Field Energy and Mechanical Force: Field Energy and Mechanical Force - Consider once again the attracted armature relay excited by an electric source as in Fig. 4.4. The field produces…

Audio Frequency Transformer

Audio Frequency Transformer: Audio Frequency Transformer is used at the output stage of Audio Frequency electronic amplifier for matching the load to the output impedance of the power amplifier stage.…

Variable Frequency Transformer

Variable Frequency Transformer | Application: So far we have considered transformers which operate at fixed frequency (50 Hz). Their purpose is to transform electric power from one voltage level to…

Approximate Equivalent Circuit of Transformer

Approximate Equivalent Circuit of Transformer: Approximate Equivalent Circuit of Transformer - In constant frequency (50 Hz) power transformers, approximate forms of the exact T-circuit equivalent of the transformer are commonly…

Ideal Transformer on Load

Ideal Transformer on Load: In order to visualize the effect of flow of secondary current in a transformer, certain idealizing assumptions will be made which are close approximations for a…

How does a Transformer Work and Purpose of Transformer

How does a Transformer Work and Purpose of Transformer: How does a Transformer Work - A Transformer Circuit is a static device comprising coils coupled through a magnetic medium connecting…