Difference Between Relay and Circuit Breaker
The main difference between the relay and circuit breaker is that the Relays detect the fault and act as a controlling device, on the other … Read more
Protection
df/dt Relay – Rate of Change of Frequency(ROCOF) Relay
df/dt Relay – Rate of Change of Frequency(ROCOF) Relay is used for load shedding when there is a sudden loss of generating capacity. In this … Read more
Anti-Pumping Relay Diagram & Working Function Explained
This article describes the anti-pumping relay, its definition, function, and circuit diagram. In a circuit breaker it is desired that when close and trip operation … Read more
Under Voltage Protection Working Principle 27
In this article, we will discuss the working principle and configuration of the under voltage (ANSI 27) protection relay. In under-voltage conditions, the system voltage … Read more
Master Trip Relay 86 Working Function and Significance of Master Trip Relay
Master Trip Relay is one of the important auxiliary relays in the power system. The master trip relay receives the input signals from the various … Read more
CT Ratio Calculator & CT Ratio Calculation Formula
In this article, we will discuss the CT ratio calculator and CT ratio calculation formula. The CT ratio is very important as a design factor … Read more
Dead Machine Protection of Generator
Dead machine protection protects the generator from energization when it is at a standstill condition. The ANSI code for dead machine protection is 94G. The … Read more
Class-A, Class-B and Class-C Tripping Classification of Generator
Class-A, Class-B, and Class-C Tripping Classification of Generator are done according to types of the fault in the generator and its associated circuits. In this … Read more
Short Circuit Study & Analysis
A short circuit study is an evaluation of an electrical system’s capacity to determine the magnitude of currents that can flow through the electrical network … Read more
What is Ground Fault and Earth Fault?
Ground Fault Ground Fault & Earth Fault- When the live conductor touches a ground point, the heavy current flows from the live phase to the … Read more