Starting and Speed Control of DC Traction Motors: Starting and Speed Control of DC Traction Motors - As already discussed, only series and compound dc motors are suitable for traction…
Systems of Track Electrification DC Electrification System: The substations are necessary for control of electric supply to a considerably long network in systems of track electrification DC electrification system. DC…
Compact Fluorescent Lamp (CFL) - Working Principle, Types, Advantages and Disadvantages: A compact fluorescent lamp (CFL), also known as a compact fluorescent light or energy saving light, is a type…
Difference Between AC and DC Welding: The Difference between AC and DC welding is given in table below Particulars DC Welding AC Welding Equipment Motor-generator set or rectifier is required…
Ultrasonic Welding Working Principle and Applications: Ultrasonic welding is a solid state welding process that produces coalescence of materials by the local application of high-frequency (20-60 kHz) vibratory energy as…
Percussion Welding - Definition, Working, Advantages and Applications: It is a recent development in welding. Percussion welding is a resistance welding process where in coalescence is produced simultaneously over the…
Explain Vapour Compression Refrigeration System: Vapour Compression Refrigeration System is the most important system from the standpoint of commercial and domestic utility and most practical form of refrigeration. The working…
Electric Welding Interview Questions and Answers: 1. What is welding ? Ans. Welding is a materials-joining process that produces coalescence of materials by heating them to the welding temperature, with…