Symmetrical Fault Analysis Interview Questions and Answers: 1. What is meant by fault level ? Ans. When fault occurs at a point in a power system, the corresponding MVA is referred to as the fault…
Symmetrical Components Interview Questions and Answers: 1. What do you mean by Fortescue theorem. Ans. According to Fortescue theorem, any unbalanced three-phase system of currents, voltages or other sinusoidal quantities can be resolved into three…
Symmetrical Component Transformation: Symmetrical Component Transformation is given by a set of three balanced voltages (phasors) Va,Vb,Vc is characterized by equal magnitudes and interphase differences of 120°. The set is said to have a phase…
Symmetrical Component Analysis of Unsymmetrical Faults: Symmetrical Component Analysis of Unsymmetrical Faults - Consider a general power network shown in Fig. 11.1. It is assumed that a shunt type fault occurs at point F in…
Symbol Counter: Symbol Counter - A counter is a simple device used for counting. There are different types of counters. There are up-counters (that only count up 1, 2, 3 ...). These are called CTU (Count…
Switching Transistor: The characteristics of modern Switching Transistor are specially suited to the functional requirements mentioned already. These along with the other Semiconductor production of static relays. The properties particularly useful in the realisation of…
Switching Transients in Transformer | Transformer Inrush Current: Switching Transients in Transformer - In the earlier discussion earlier steady-state operation was assumed so that v1 and Φ are both sinusoidal, Φ lagging v1 by 90°…
Switching Systems in Digital Communication: If only two sites are to be connected, switching is not required. The two facilities are interconnected on a point-to-point basis. However, switching is likely to be required where three…
Switching Surges in Transmission Line: Till the time when the transmission voltages were about 220 kV and below, over-voltages due to lightning were of very high order and overvoltages generated inside the system were not…
Switching Regulator Operation: A Switching Regulator Operation can be thought of as similar to a linear regulator, but with the series-pass transistor operating as a switch that is either off, or switched on (in a…
