What is Electric Traction? - Introduction, Definition, Working, Advantages and Disadvantages Electric traction was first introduced in Britian in the year 1890 at 600 V dc using third rail for…
Traction Systems Interview Questions and Answers: 1. Why steam engine drive is not suitable for urban and suburban services where distance between stations is small ? Ans. Because of low…
Thyristor Control of Electric Motors Interview Questions and Answers: 1. Why the thyristor control is preferred over Ward Leonard system of speed control ? Ans. The thyristor control has some…
Control Devices for Industrial Motors Interview Questions and Answers: 1. What are the two main applications of a thyratron ? Ans. Two main applications of thyratron are (i) switching and…
AC Regulator - Definition and Classification: An ac regulator converts a constant ac voltage into a variable ac voltage of the same frequency. No doubt, ac voltage level can be…
What is a thermistor? - Definition, Symbol and V-I Characteristics: The word thermistor is a combination of thermal and resistor. A thermistor is a resistor with definite thermal characteristics. Most…
8255A Programmable Peripheral Interface: 8255 is a programmable peripheral interface IC and is a multiport input/output device. This is a general-purpose programmable I/O device, which may be used with many…
Traction Drives Articles: Electric Traction Services: Electric Traction Services can be broadly classified as: Electric Trains. Electric buses, trams (or tramways) and trolleys. Battery driven and solar powered vehicles. Electric…