Single Line Diagram of Power System and Impedance or Reactance Diagram: A single line diagram of power system shows the main connections and arrangements of components. Any particular component may or may not be shown…
Generation of Switching Surges: Nowadays in extra high voltage transmission lines and power systems, switching surges is an important factor that affects the design of insulation. All transmission lines rated for 220 kV and above…
Earth Fault Protection or Leakage Protection: An Earth Fault Protection usually involves a partial breakdown of winding insulation to earth. The resulting leakage current is considerably less than the short-circuit current, The Earth Fault Protection…
Short Time Intermittent Duty: Another class of duty for normally occurring loads is Short Time Intermittent Duty in which the load requires a constant power for a short interval of time and rests for sufficiently…
Reversible Drive using Field Reversal: A Reversible Drive using Field Reversal can be realised as shown in Figs. 4.83 and 4.84. In Fig. 4.83, the armature is fed from a two quadrant converter with change…
What is Street Lighting? - Objectives, Principles and Types The main objects of street lighting are : To make the traffic and obstructions on the road clearly visible in order to promote safety and convenience.…
Cathode Ray Oscillograph for Impulse Measurements: Modern Cathode Ray Oscillograph for Impulse Measurements are sealed tube, hot cathode oscilloscopes with photographic arrangement for recording the waveforms. The cathode ray oscilloscope for impulse work normally has input voltage…
Cryogenically Cooled Amplifiers: The term solid-state is used deliberately here; it does not mean "semiconductor." In terms of the somewhat older maser parlance, it means the opposite of gaseous, i.e., ruby. The cross section of…
Difference Between Boiler Mountings and Accessories: The Difference between Boiler Mountings and Accessories is given below: Boiler Mountings Boiler Accessories Mounted on the boiler surface Integral parts of the boilers, but not mounted on it…
What is Compensation in Power System: Introduction to Compensation in Power System - For reduction of cost and improved reliability, most of the world's electric power systems continue to be interconnected. Interconnections take advantage of…