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Protective Relay

Protective Relay: A Protective Relay is a device that detects the fault and initiates the operation of the circuit breaker to isolate the defective element from the rest of the…

Induction Regulators: An induction regulators is essentially a constant voltage transformer, one winding of which can be moved w.r.t. the other, thereby obtaining a variable secondary voltage. The primary winding is…

Brown Boveri Regulator

Brown Boveri Regulator: In this type of Brown Boveri Regulator, exciter field rheostat is varied continuously or in small steps instead of being first completely cut in and then completely…

Three Wire DC System Balancer Set

Three Wire DC System Balancer Set: Although in a 3-wire d.c. system every effort is made to distribute the various loads equally on both sides of the neutral, yet it…

DC Distribution System

DC Distribution System: It is a common knowledge that electric power is almost exclusively generated, transmitted and distributed as a.c. However, for certain applications, d.c. supply is absolutely necessary. For…

Control of DC Drives Using Microprocessors

Control of DC Drives Using Microprocessors: The dc motors fed from thyristor converters for variable speeds are being extensively used in general industrial applications. A dual converter, which is a…

Cement Mill Process

Cement Mill Process: The Cement Mill Process has different Stages in Cement Production and they are The raw materials of Cement Mill Process are lime and silica. Alumina and ferric…

Cranes and Hoist Drives

Cranes and Hoist Drives: The Requirements of the Cranes and Hoist Drives are The motion of the crane hook is in all three dimensions. In crane drives, the acceleration and…