COMPARISON OF SQUIRREL CAGE AND SLIP RING MOTOR
A wound-rotor motor (Slip Ring Motor) is a type of induction motor where the rotor windings are connected through slip…
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LOSS AND EFFICIENCY AND COSTING OF TRANSFORMER
Transformers reduce the voltage of the electricity supplied by the utility to a level suitable for use by the electric…
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STEPS TO BETTER MOTOR APPLICATIONS
1) KNOW THE LOAD CHARACTERISTICS For line-operated motors, loads fall into three general categories: constant torque, torque that changes abruptly,…
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TYPES OF MOTORS
MOTOR A motor is an extended version of a transformer. Here we can introduce the analogy between a transformer and…
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LIFE CYCLE COST OF TRANSFORMERS
To perform the economical analysis of transformer, it is necessary to calculate its life cycle cost, sometimes called total cost…
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Auto Transformer - Electrical Machines - Instrument Transformer - Transformer - Types of Transformer
TYPES OF TRANSFORMERS
TRANSFORMER A transformer is an extended version of an inductor. The flux that is created inside the inductor is used…
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AUTO TRANSFORMERS
An autotransformer is a transformer which has part of its winding common to the primary and secondary circuits. Fig. 1(a)…
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EMF EQUATION OF A TRANSFORMER
The magnetic flux ϕ set up in the core of a transformer when an alternating voltage is applied to its…
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AIR CORE TRANSFORMER
Some small transformers for low-power applications are constructed with air between the two coils. Such transformers are inefficient because the…
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DC GENERATORS
Principle: An electrical generator is a machine which converts mechanical energy into electrical energy. The energy conversion is based on…