Desert Cooler Construction and Working Principle: As the name implies, it is suitable for places where the humidity is quite low and temperature quite high. Such conditions are in conformity with desert areas. Hence the…
Derivation of Transmission Loss Formula: An accurate method of obtaining a general derivation of transmission loss formula has been given by Kron. This, however, is quite complicated. The aim of this article is to give…
Derivation of Single Phase Quantity from Three Phase System: It will be seen later that auxiliary channels or pilot wires are used to transmit information from one end of the line to the other end.…
Deregulation Meaning: For over one hundred years, the electric power industry worldwide operated as a regulated industry. In any area there was only one company or government agency (mostly state-owned) that produced, transmitted, distributed and…
Derating Factor of an Electric Motor Operating on AC Voltage Controller: Typical derating factor of an induction motor fed from a voltage controller are shown in Fig. 4.5(d) when the motor drives a fan or…
Depletion Type MOSFET - Construction, Operation and Characteristics: As we know already that when the gate is biased negative w.r.t. the source in an N-channel JFET, the depletion-region widths are increased. The increase in the…
Demultiplexing of Address and Data Bus in 8086 and 8088 Microprocessors: Demultiplexing of Address and Data Bus in 8086 and 8088 Microprocessors which consists of three buses: address, data and control buses. The address/data buses…
Deltatron Circuit or Cascaded Modular Voltage Multipliers: A combination of Cockcroft-Walton type voltage multiplier with cascaded transformer d.c. rectifier is developed recently for very high voltages but limited output currents having higltstability, small ripple factor and…
Delta to Star Conversion and Star to Delta Conversion: In the complicated networks involving large number of elements, Delta to Star and Star to Delta Conversion considerably reduce the complexity of the network and network…
Delta Modulation(DM): Delta modulation(DM) is process of modulation in which train of fixed width pulses is transmitted. Their polarity indicates whether the demodulator output should rise or fall at each pulse. The input is caused…
