Three Phase Inverter

Three Phase Inverter: The variable frequency required for the speed control of three phase ac motors is obtained from a Three Phase Inverter. To avoid magnetic saturation and to obtain…

Continue Reading Three Phase Inverter

Electric Converter

Electric Converter: Electric Converter - The speed of a dc motor can be varied by varying the armature voltage or the field current, for which a variable dc supply is…

Continue Reading Electric Converter

Dynamic Conditions of a SystemDrive

Dynamic Conditions of a SystemDrive: Dynamic or transient conditions occur in SystemDrive systems when the operating point changes from one steady state condition to another, following a change introduced in…

Continue Reading Dynamic Conditions of a SystemDrive

Basic Elements of Electric Drive

Basic Elements of Electric Drive: Basic Elements of Electric Drive- Before discussion makes clear that an electric drive system basically consists of a mechanical load to which the required mechanical…

Continue Reading Basic Elements of Electric Drive

Polarised Relay

Polarised Relay: This Polarised Relay is very frequently employed where operation is required in two directions. In a d.c. Polarised Relay contact A is closed when current in the operating…

Continue Reading Polarised Relay

Different Types of Relays Elements

Different Types of Relays Elements: The Important Different Types of Relays Elements or also called Electromagnetic Types are Induction Disc Relay Induction-cup Relays Moving Coil Relays Hinged Armature Relays Polarized…

Continue Reading Different Types of Relays Elements

Influence of Static Protective Relays

Influence of Static Protective Relays: Influence of Static Protective Relays on the associated equipment like current transformers, voltage transformers, etc,. Let us discuss one by one. Current Transformers: Burdens on…

Continue Reading Influence of Static Protective Relays

Characteristics of Protective Relay

Characteristics of Protective Relay: Characteristics of Protective Relay elements using different operating principles. These principles and design criteria determine how well the basic function is performed and how in practice…

Continue Reading Characteristics of Protective Relay