Transformer & Induction Motors (KIIT)
From ₹365
Instructor: Thotakura NSC Sekhar
Instructor Language: English
Course Validity: 30days/90days/365days
Compatibility: Android Mobile, Laptop/PC (Windows-8 or above)
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90+ Videos Download & Watch (55Hours of lectures, 230MB per hour) With PDF notes.
Single Phase Transformer:
Principle of operation, Construction, Types, emf equation and Phasor diagrams of transformer at no load and load condition, Development of Equivalent Circuit, No Load Test, Short Circuit Test and Sumpner’s Test. Voltage Regulation, Losses, Efficiency and all day Efficiency. Parallel operation of Transformer and applications. Auto Transformer: Principle, Performance (Copper Saving, Phasor Diagram and equivalent circuit) and Applications. Explanation for origin of harmonics current and voltage, Harmonics techniques, Polarity Test.
Three Phase Transformer:
Three Phase Transformer Connections and vector Group, open delta connection, Phase Transformation: 3 phase to 2 Phase, 3 phase to 6 phase and 3 phase to 12 phase, Parallel operation of three phase transformer. Construction of three phase Transformer, Inrush current.
Three Phase Induction Motor:
Rotating Magnetic Field, Principle of operation and concept of slip, Comparison between transformer and induction motor, Types and Applications, Equivalent Circuit and Phasor Diagram, Torque, maximum torque, Torque-slip characteristics, Effects of variation of rotor resistance, Power stages of an induction motor, No load and Blocked rotor test, Circle Diagram, Methods of starting for squirrel cage and slip ring induction motor, Speed control of squirrel cage and slip ring induction motor. Different parts of induction motor, Terminology: cogging, crawling, inching, jogging, Induction Generator.
Single Phase Induction Motor:
Types, Double field Revolving Theory, capacitor start motor, capacitor start and run motor. Application of single Phase induction motor, Backward slip, development of equivalent circuit.
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