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Passives

Three-phase transformers

Industrial and commercial use, High power transmission, Delta and Wye network connection, Star-delta turns ratio, Delta-star turns ratio, Construction.

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The Autotransformer

Principle of operation and voltage ratio, Construction and application, Copper savings in auto-transformer, Advantages and Disadvantages of an auto-transformer

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Resistor specifications

Resistor color code, IEC markings, E-series resistors, Tolerance of resistors, Power rating of resistors, Temperature coefficient of resistors

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Capacitor specifications

Capacitance, Voltage rating, Polarity, Tolerance, Equivalent series resistance (ESR), Equivalent series inductance (ESL), Tangent loss angle, Leakage current, Temperature stability,

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Capacitor types

Polarized-unpolarized, Ceramic, MLCC, Aluminium electrolytic, Tantalum, Film capacitors, Super capacitors, Mica and paper capacitors

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Capacitors in AC circuits

Capacitive reactance, impedance, phase shift, frequency, Capacitor charging and discharging, current-voltage relationship, filter circuits, AC analysis, power factor correction

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Resistors

Unit of resistance, Ohms, Symbol of resistors and potentiometer, Types of resistors, Resistor color code, Power rating of resistor, Application

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Capacitors

Energy storage element, capacitance, parallel plate capacitor, permittivity, dielectric, voltage rating of capacitors

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Inductors

Inductance, Circuit analysis, Inductor symbol, Non idealities of inductors, Types of inductor, Air core, Toroidal etc.

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