Simple & clean notes of electric m/c-I for electronics engineering.it contain all important topics which are given below chapter wise
Unit-I Transformer-I
Working principle
e.mf. equation
construction
phasor diagrams
equivalent circuit
voltage regulation
losses
separation of hysteresis and eddy current losses
efficiency
tests: open circuit and short circuit
load
Sumpner’s test
Condition for maximum efficiency and regulation
Power and distribution transformer
allday efficiency
Excitation phenomenon
Autotransformer: working, advantages
its equivalent circuit and phasor diagram
Unit II Transformer-II
Three phase transformer: its construction
groups and connections
their working and applications
Scottconnection
Parallel operation of Transformers
Tap changers
cooling
conservator and breather
Pulse and high frequency transformers
Unit III Three phase Induction Motor-I
Working principle
construct
