Indepth Electrical engineering

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...

AC Induction Motor Current Rating Chart (KW, HP, Amps) Induction motors are the backbone of every industry and household. From small appliances (fractional kilowatt motors) to large industrial drives (up to 375 kW and above), induction motors are widely used because of their reliability and efficiency. ·          Low rating motors are available in single-phase (220V) versions for domestic and light commercial use. ·          High rating motors are mostly three-phase (415V) motors, suitable for industrial applications. ·          For very high power requirements, HT (High Tension) induction motors are used. Below is the AC motors current rating chart for common motor sizes at 50 Hz supply frequency . 🔹 AC Induction Motor Current Rating Chart KW Rating Horsepower (HP) Current @ 3-Phase (415V) C...

  Cable Selection Chart for Induction Motors (3-Phase, 415V, 50Hz) When selecting cables for induction motors, it is important to match the motor rating (kW) with the correct cable size to ensure safety, efficiency, and compliance with standards. The following table provides the recommended copper cable sizes for motors at 415V, 50Hz supply frequency. (For aluminium cables, increase the size by 1.5 times that of copper cables.) 📊 Motor Cable Selection Table (Copper Cables) Motor Rating (kW) Full Load Current (A) Recommended Copper Cable Size 0.06 0.21 1 × 3 Core × 1.5 mm² 0.09 0.32 1 × 3 Core × 1.5 mm² 0.12 0.38 1 × 3 Core × 1.5 mm² 0.18 0.58 1 × 3 Core × 1.5 mm² 0.25 0.70 1 × 3 Core × 1.5 mm² 0.37 1.10 1 × 3 Core × 1.5 mm² ...