AC Excitation System - Block diagram and Working Principle: This AC Excitation system consists of an alternator and thyristor rectifier bridge directly connected to the main alternator shaft. The main…
Transistor Biasing and Stabilization Articles: Selection of Operating Point in Transistor Biasing: To study the selection of operating point in Transistor biasing conditions on the performance of a transistor, it…
Multistage Amplifiers Articles: What is Multistage Amplifier? – Types, Block Diagram and Analysis Amplifiers that produce voltage, current, and/or power gain through the use of two or more stages are…
Percentage Differential Relay Protection of Generator: This system, also called the Merz-Price protection system, is the most common type of protection used for stator windings against phase-to-phase or phase-to-ground faults.…
Difference between Static Relays and Electromagnetic Relays: The conventional electromagnetic relays are robust and quite reliable, but are required to operate under different forces under fault conditions. This leads to…
Classification of Relays: The protective relay may be defined as an electrical device interposed between the main circuit and the circuit breaker in such a manner that any abnormality in…
Amplidyne (Rotary Amplifier) - Definition, Construction, Connection Diagram, Workings and Applications: The amplidyne is a rotary amplifier in which a small amount of power supplied to excite the field is…
Overhead Equipment in Electric Traction Systems: Simplest type of overhead equipment in electric traction systems consists of a single contact wire supported either by bracket or by overhead span. The…