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
Hot Wire Ammeter- Construction, Working
A hot wire ammeter is an instrument that measures the electric current through a wire by heating and expanding it. These instruments have a slow … Read more
Electrical Earthing
Definition: Electrical earthing is the process of directly discharging electrical energy to the earth using low-resistance wire. This is done by connecting the equipment’s non-current-carrying part … Read more
Automatic Voltage Regulators (AVR) For Generator
Maintaining a constant voltage at different levels in a power system is crucial. Several techniques are available for voltage control at different levels. An Automatic … Read more
Types of Faults in Power System
This article describes the different types of faults in power system, such as LLL, LL, LG, LLG, and LLLG faults. Faults are defects that cause … 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
Phase Sequence
Definition: The phase sequence in a three-phase system shows the order of voltages attaining their peak or maximum value. The three phases in the 3-phase … Read more
Coefficient Of Coupling
Definition: The coefficient of coupling, denoted by (k), represents the proportion of magnetic flux generated by the current in one coil that interlinks with the … Read more