Electrical And Electronics For U

MEGGER WORKING PRINCIPLE Insulation resistance quality of an electrical system degrades with time, environment condition i.e. temperatu...

PERMANENT MANGET DC MOTOR(PMDC) In a  dc motor , an armature rotates inside a magnetic field. Basic  working principle of DC motor  is ...

A diode is a two-terminal device, having two active electrodes, between which it allows the transfer of current in one direction only....

Different Transformer Cooling Methods For accelerating cooling different  transformer cooling methods  are used depending upon their siz...

SERVO MOTOR  This is nothing but a simple  electrical motor , controlled with the help of servomechanism. If the motor as controlled dev...

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...

Low Power Factor Wattmeter                             As the name suggests the low power factor meter are the instruments that measures...

Typical layout  of ac power supply scheme:                         The ac power supply scheme can be broadly divided into two functiona...

          STARTING OF SLIP RING MOTORS * At starting the handle of resistance is  set in the OFF position so that maximum resistance is p...

TYPES OF DC MOTOR                    The   direct current motor   or the   DC motor   has a lot of application in today’s field of engine...