Arc Furnace - Definition, Types, Advantages and Application: When a high voltage is applied across an air gap, the air in the gap gets ionised under the influence of electrostatic…
Composite System of Track Electrification: The composite system of track electrification which comprise are the dc system the single phase ac system the three phase ac system and the composite…
Thyristorised Control of DC Electric Traction Motor: The modern trend is towards the use of dc motors (both separately excited and dc series motors) equipped with thyristor chopper control. The…
Fluorescent Tube - Definition, Construction, Working, Merits and Demerits: Fluorescent lighting has a great advantage over other light sources in many applications. The tubes can be obtained in a variety…
Neon Tube - Working Principle, Installation and Faults: The popularity of high voltage neon lighting arose almost entirely from its use in advertising, for signs, or in the decorative treatment…
High Pressure Mercury Vapour Lamp - Construction and Working: The extensive use of the mercury vapour lamp depends entirely upon the versatility of the mercury vapour as regards pressure, temperature,…
Sodium Vapour Lamp - Construction, Working and Wiring Diagram: Principally the sodium vapour discharge lamp consists of a bulb containing a small amount of metallic sodium, neon gas, and two…
Gaseous Discharge Lamp - Working Principle and Types: Incandescent lamp suffers from two disadvantages—low efficiency and coloured light. The gaseous discharge lamp have been developed to overcome these drawbacks. The…