Ultra High Voltage Circuit Breakers: The specific requirements demanded of a Ultra High Voltage circuit breaker by system and operator considerations are at present considered to be the following. Speed…
Duties of circuit breaker diagram: Under different circumstances Duties of circuit breaker diagram may be subjected to widely varying stresses. First of all the current varies from a few amperes…
Important Questions of Overvoltage Protection: 1. What is a voltage surge ? Draw a typical lightning voltage surge. 2. Discuss the causes of overvoltages. 3. What is lightning ? Describe…
Fiber Optics History: Fiber Optics History - In 1870 John Tyndall, a natural philosopher living in England, demonstrated one of the first guided light systems to the Royal Society. His…
External Noise in Communication System: The various forms of External Noise in Communication System created outside the receiver are namely 1. Atmospheric Noise, 2. Extraterrestrial Noise, Solar noise Cosmic noise…
Underground Cables in Power System Articles: Capacitance of 3 Core Cables : The Capacitance of 3 Core Cables is much more important than that of overhead line because in cables…
Overvoltage Protection Articles: Lightning : An electric discharge between cloud and earth, between clouds or between the charge centres of the same cloud is known as lightning. Lightning is a…
Symmetrical Fault Analysis Articles: Algorithm for Short Circuit Computation : So far we have carried out short circuit calculations for simple systems whose passive networks can be easily reduced. In…