Circuit Breaker

A circuit breaker is a type of switch that is designed to interrupt the flow of nominal, abnormal, or fault current. Whenever a high magnitude … Read more


Symmetrical & Unsymmetrical Faults

Two common types of faults encountered in power systems are symmetrical and unsymmetrical, each with distinct characteristics and implications for system operation and protection. When … Read more


Symmetrical Components

The method of symmetrical components simplifies the analysis of unbalanced three-phase power systems under normal and abnormal conditions. This method simplifies the problems of unbalanced … Read more


Sequence Impedance

The sequence impedance of a power system is crucial in understanding how the system behaves under asymmetrical fault conditions. The system’s performance can be determined … Read more


Zero Sequence Current

Definition: An unbalanced current flows during an earth fault in an electrical circuit. This current is known as the zero sequence current or the DC component … Read more