LBB Protection Relay: Definition, Function, Importance, Operating Scheme
LBB is a short form of local breaker backup. The LBB protection protects the electrical system by isolating the faulty circuit if the primary breaker … Read more
Protection
The difference between Offline and Online Partial Discharge (PD) Testing
In Australia’s evolving electrical landscape, the significance of both Offline and Online Partial Discharge Testing cannot be overstated. With the proliferation of high-voltage equipment across … Read more
Zero Sequence Current
Definition: During an earth fault in an electrical circuit, an unbalanced current flows. This current is also referred to as the zero sequence current or … Read more
Sulphur Hexafluoride(SF6) Circuit Breaker
A type of circuit breaker that uses pressurized SF6 gas to extinguish the arc is called an SF6 circuit breaker. SF6 gas has exceptional dielectric, … Read more
Inverse Time Circuit Breaker and Instantaneous Trip Circuit Breaker
Inverse time circuit breaker and Instantaneous trip circuit breaker are used to protect the equipment in the case of overload and short-circuit electrical faults. The … Read more
Overcurrent Relay- Working Principle, Types, and Applications
An overcurrent relay is a protective device that is used to trip or open a circuit when the current flowing through it exceeds the threshold … Read more
Thermal Overload Relay- Working Principle, Types
A thermal overload relay is a safety device that triggers a circuit-breaking phenomenon by sensing a fault on the line it has been connected to. … Read more
Construction & Working of Metal Oxide Surge Arrester
In this article, we will discuss the metal oxide surge arrester. But before let us first know a bit about surge arresters and their importance … Read more
Trip Circuit Supervision TCS Relay Working Function & Operation
Trip circuit supervision monitors and indicates the healthiness of the breaker’s tripping circuit and indicates whether or not the circuit breaker will trip at a … Read more
Difference between Isolator and Circuit Breaker
The main difference between an isolator and a circuit breaker is that an isolator is an off-load on/off device, while a circuit breaker is an … Read more