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MEGGER WORKING PRINCIPLE Insulation resistance quality of an electrical system degrades with time, environment condition i.e. temperatu...
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PERMANENT MANGET DC MOTOR(PMDC) In a dc motor , an armature rotates inside a magnetic field. Basic working principle of DC motor is ...
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A diode is a two-terminal device, having two active electrodes, between which it allows the transfer of current in one direction only....
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Different Transformer Cooling Methods For accelerating cooling different transformer cooling methods are used depending upon their siz...
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SERVO MOTOR This is nothing but a simple electrical motor , controlled with the help of servomechanism. If the motor as controlled dev...
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3 POINT STARTER A “3-point starter” is extensively used to start a D.C shunt motor. It not only overcomes the difficulty of a plain resis... -
Typical layout of ac power supply scheme: The ac power supply scheme can be broadly divided into two functiona... -
Low Power Factor Wattmeter As the name suggests the low power factor meter are the instruments that measures...
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STARTING OF SLIP RING MOTORS * At starting the handle of resistance is set in the OFF position so that maximum resistance is p...
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TYPES OF DC MOTOR The direct current motor or the DC motor has a lot of application in today’s field of engine...
