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Power System
Power factor What exactly is the Power factor?
Power factor correction Causes of low power factor and methods to improve it.
Variable loads on power system Load curves, connected load, average load, maximum demad etc.
Economics of power generation - part 1 Cost of electrical energy and formulae for determining it.
Economics of power generation - part 2 Methods for calculating annual depreciation costs.
Electricity tariff Tariff is the rate at which the consumers are charged for using electricity.
Economic choice of transmission voltage How to choose an economical transmission voltage?
Economic choice of Conductor size Cost of a conductor also depends on it's cross-sectional diameter.
Types of electrical loads Electrical loads can be classified according to various different factors.
Types of Overhead conductors AAC, AAAC, ACSR, ACAR - Aluminium has been widely adopted as the material for overhead conductors.
Corona discharge What is corona effect in transmission line? How to reduce it?
Corona rings and grading rings
How corona rings work and what are grading rings.
Skin effect and proximity effect
What is skin effect? What is proximity effect?
Insulators used in overhead power lines Pin, suspension, strain and shackle type insulators.
Electrical insulators - materials and types Insulating materials and their properties. Post, glass, polymer, long-rod and stay insulators.
Testing of overhead line insulators Flashover tests, performance tests and routine tests.
Capacitance of underground cables Calculation of capacitance for single core and three core cables.
Grading of underground cables Achieving uniform electrostatic stress in the dielectric of a cable
Faults in underground cables Various types of faults in underground cables and their detection.
Loop tests for locating faults in underground cables Murray loop test and Varley loop test for locating faults in underground cables.
Electric power distribution Now, let's see how electrical power is distributed to the consumers.
Types of AC power distribution systems On the basis of number of phases and wires involved.
AC distribution connection topology Radial, Parallel feeders, Ring main and Interconnected distribution system.
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