Townsend Current Growth Equation

Townsend Current Growth Equation: Referring to Fig. 2.1 shows the Townsend Current Growth Equation. let us assume that n0 electrons are emitted from the cathode. When one electron collides with a neutral…

Continue Reading Townsend Current Growth Equation

Distance Relays or Impedance Relays

Distance Relays or Impedance Relays: The operation of the relays discussed so far depended upon the magnitude of current or power in the protected circuit. However, there is another group…

Continue Reading Distance Relays or Impedance Relays

Requirements of a Distribution System

Requirements of a Distribution System: A considerable amount of effort is necessary to maintain an electric power supply within the requirements of various types of consumers. Some of the good…

Continue Reading Requirements of a Distribution System

Commutation in DC Motor

Commutation in DC Motor: Commutation and commutator wear and tear of the dc motor must be given due consideration when the motor operates on solid state converters. Spark-less commutation must…

Continue Reading Commutation in DC Motor

Braking and 4 quadrants Operation

Braking and 4 Quadrants Operation: Subsynchronous converter cascades have been used, till now, in applications requiring one quadrant operation. These can be employed for drives where at least one electrical…

Continue Reading Braking and 4 quadrants Operation

Single Line Diagram of Electrical System

Single Line Diagram of Electrical System: The function of an Structure of Electrical Power System is to connect the power station to the consumers' loads by means of interconnected system…

Continue Reading Single Line Diagram of Electrical System

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

Dynamic Electric

Dynamic Electric: Dynamic Electric - An industrial drive system basically consists of a mechanical working equipment or load, which has to be kept in motion to turn out mechanical work,…

Continue Reading Dynamic Electric