Hysteresis Loss and Eddy Current Loss in Transformer: When a magnetic material undergoes cyclic magnetization, two kinds of power losses occur in it Hysteresis Loss and Eddy Current Loss in Transformer which together are known…
Hydrological Cycle or Rain Evaporation Cycle: Hydrological Cycle or Rain Evaporation Cycle is a process by which moisture from the surface of water bodies covering the earth's surface transferred to the land and back to…
Hydroelectric Power Station: A Generating station which utilizes the potential energy of water at a high level for the generation of electrical energy is known as a Hydroelectric Power Station Hydroelectric Power Station stations are generally…
Hydroelectric Power Plants Interview Questions and Answers: 1. What is power generating station ? Ans. Power generation station generates electrical energy by conversion of energy available in different forms from natural sources such as kinetic…
Hydel Power Plant - Definition, Working Principle and Advantages: Power of water - Hydel Power Plant is a clean and cheap source of energy. The basic principle of hydropower is that when water is piped from…
Hybrid Stepper Motor Construction and Working: This is in fact a PM stepper motor with constructional features of toothed and stacked rotor adopted from the variable-reluctance motor. The stator has only one set of winding-excited…
Hybrid Parameters of Transistor or h Parameters and Hybrid Model: A box representing a two-port network is illustrated in Fig. 11.1. The terminal behavior of a two-port device may be specified by two voltages and…
HVDC Circuit Breakers - Construction and Working Principle: Light duty dc circuit breakers have been in use since long. However, there is lack of suitable circuit breakers for HVDC systems. At present most of the…
Hurwitz Polynomial: For a polynomial P(s) to be a Hurwitz polynomial, it has to satisfy following basic properties, The polynomial P(s) is real when 's' is real. The roots of the polynomial P(s) have real…
Hunting in Synchronous Machine: So far the operation of the synchronous machine under steady-state conditions at constant (synchronous) speed has been considered. Under these conditions of Hunting in Synchronous Machine where Pe= electrical power output…
