Resources For Electrical & Electronic Engineers
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A contactor is an electrically controlled switch used for switching an electrical power circuit , similar to a relay except with higher current ratings. Contactor is in fact an electromechanical switch. Low-voltage Contactor is an electrically controlled switch used for switching an
What is a balun? A Balun is special type of transformer that performs two functions i.e. impedance transformation and balanced to unbalanced transformation. The term balun is a contraction of “balanced to unbalanced transformer” Why do we need a balun? Baluns are
The phenomenon of ionization of surrounding air around the conductor, hissing noise and production of Ozone gas in an overhead transmission line is known as Corona Effect. Corona discharge is a process by which a current flows in a conductor with a
Electrical wiring generally refers to insulated conductor used to carry current including the associated devices. Domestic electric appliances like lights, fans, washing machines, water pumps etc are connected to the supply through insulated wires which are controlled by switches. The wiring diagram
Overhead transmission lines are classified based on the manner in which the capacitance is considered. Common classification is long, short and medium transmission lines. Short Transmission Lines Transmission lines whose length less than 80kms and operating voltage less than 20kV comes under
Bundled Conductors For transmission of more power for long distances to load centers Extra High Voltage (EHV) transmission is employed. Implementing Extra High Voltage has advantage of reduction in the copper losses and improves efficiency. However transmission of voltage beyond 300kV will