Multiply Excited Magnetic Field System: Multiply Excited Magnetic Field System - Singly-excited devices discussed earlier, are generally employed for motion through a limited distance or rotation through a prescribed angle.…
Electromagnetic Relay - Definition, Construction and Working Principle: Electromagnetic Relay - A relay, in the general sense of the word, is any apparatus which serves to actuate or control the…
Different Groups of Systems of Electric Traction: As already mentioned, systems of electric traction may be divided into two main groups. (1) The group consisting of vehicles which receive electric…
Power System Stability Interview Questions and Answers: 1. Define stability limit. Ans. A stability limit is the maximum power flow possible through some particular point in the system or the…
Satellite Communication System - Definition, Block Diagram, Advantages and Disadvantages: A satellite communication channel provides broad-area coverage in a continental as well as intercontinental sense. Moreover, access to remote areas…
Radio Communication System - Block Diagram and types: Radio communication is very popular technique of communicating a message. The radio waves are electromagnetic waves produced due to escape of electrical…
Basic Static Relays in Protective System Articles: Basic Elements of Static Relay : The basic elements of a static relay are namely, Input Element: Mixing circuits are needed to sum…
Types of Electromagnetic Relays: There are two principal Types of Electromagnetic Relays: Attracted armature type; and Induction type. (a) Attracted Armature Type: This includes plunger, hinged armature, balanced beam and…