Indepth Electrical engineering

Ceiling fan is integral part of every house and Industry. In this article we discuss about wiring of ceiling fans and circuit diagram of ceiling fans. Ceiling fan are having “Capacitor Start capacitor Run motor”. These motors have capacitor in series with starting winding. Capacitor used for this is electrolytic type. Due to this capacitor single phase get divided into two phases, due to this magnetic field is produced and due to which motor starts to rotate. Circuit diagram for ceiling fan is as shown below where capacitor is connected in series with starting winding. How to reverse the direction of ceiling fan? Direction of Ceiling fan motor can be reversed connecting capacitor with running winding instead of starting winding.  Wiring of ceiling fan:- Ceiling fan connected to power supply through a switch and regulator.  Usually phase is rotated through switch and regulator and neutral is directly connected at ceiling fan. Fan regulator is used to ...

Faraday’s Law of Electromagnetic Induction – Principle, Formula & Applications Michael Faraday (1831) discovered the fundamental principle that governs the working of almost all modern electrical machines — the laws of electromagnetic induction . These laws explain how an EMF (electromotive force) is generated in a conductor whenever there is a change in magnetic flux linked with it. This principle forms the working basis of: Induction Motors Generators Transformers Inductors Faraday’s Laws of Electromagnetic Induction 1. Faraday’s First Law Whenever there is a change in magnetic flux linked with a coil, an EMF is induced in the coil. If the circuit is closed, this induced EMF causes a current to flow. Ways to change the magnetic field in a coil: Moving the magnet towards or away from the coil. Moving the coil into or out of the magnetic field. Changing the area of the coil placed in the magnetic field. Rotating the coil relative to the ma...

Cable size and current carrying capacity for XLPE insulated cable, non-armored, Twin or multicore cable is as below:- Conductor operating temperature is 90 degree Celsius Ambient temperature: 30 degree Celsius. Cable size and current carrying capacity for XLPE insulated, Armored, Twin or multicore cable is as below:- Conductor operating temperature is 90 degree Celsius Ambient temperature: 30 degree Celsius. For air and 20 degree Celsius for ground for installations require to comply with BS: 7671 Correction factors:- For Ambient temperature: Ambient temperature in degree Celsius Correction Factor 25 1.02 30 1.00 35 0.96 40 0.91 45 0.87 50 0.82 55 0.76 60 0.65 65 0.58 70 0.50 75 0.41 80 Ground Temperature Ambient temperature in degree Celsius Correction F...