Index

SymbolsTransformerRelayPower-SystemBasic-electricalACSR-ConductorCircuit-BreakerInterview-questions-of-Basic-ElectricityInterview-questions-of-transformerInsulatorCurrent-TransformerMCQMCQ-powersystemThermal-power-stationInterview-questions-of-Power-SystemPower-ElectronicsInterview-questions-of-Underground-CableInterview-questions-of-IlluminationIlluminationMCQ-of-ElectronicsMCQ-of-Basic-ElectricalMCQ-of-Transformers MCQ-of-D.C-motor MCQ-of-D.C-generatorsMCQ-Control-SystemMCQ-Measurementsmcq-of-Generation-power-systemMCQ-of-Induction-MotorMCQ-of-Transmission-DistributionMCQ-of-Electrical-MachinesMCQ-of-Alternator-and-Synchronous-Motors

Transformer Definition


≪ Previous Next ≫

Transformer is a static device by which alternating electric power is transformed from one circuit to another circuit linked by a common magnetic flux without any change of frequency. It can raise or lower the voltage simply. Transformer consists two or more inductive coils which have high mutual inductance. It has two parts i.e one is i) core and second is ii) coils. If one coil of transformer is connected to a source of alternating voltage, an alternating flux is set up in the laminated core , most of the flux is linked with the other coil, according to Faraday’s Laws of electromagnetic induction (e=MdI/dt) it produces mutually-induced e.m.f. The first coil in which the a.c supply is applied, is called primary winding and others coil in which e.m.f produce, is called secondary winding which is shown in the picture.



More details go to:

  • electrical4u.com
  • wikipedia.org
  • Youtube.com

  • ≪ Previous Next ≫


    Related topics :


    Recent Post

    Multiple Choice Question (MCQ) of Electric Power page-10:
    91. An impulse turbine
    A) operates by initial complete conversion to kinetic energy
    B) is most suited for low head installations
    C) making use of a draft tube
    D) always operates submerged.

    Read more...

    Multiple Choice Question (MCQ) of Electric Power page-9:
    81. Spouting velocity is A) Velocity of jet under specified conditions
    B) Actual velocity of jet
    C) 50 % of ideal velocity of jet
    D) Ideal velocity of jet.

    Read more...

    Multiple Choice Question (MCQ) of Electric Power page-8:
    71. In closed cooling system A) water does not flow
    B) hot water is recirculated after cooling
    C) air and water cooling is simultaneously used
    D) constant supply of fresh water for cooling is required.

    Read more...