## Fault Resistance Calculation

Fault Resistance Calculation: Fault Resistance Calculation consists of two components, the resistance of the are and the resistance of earth. The second component is present only when it involves an…

Continue Reading Fault Resistance Calculation

## Rotor Earth Fault Protection of Generator

Rotor Earth Fault Protection of Generator: As we know already that field circuits are operated unearthed and it is not necessary to trip such a circuit completely if there is…

Continue Reading Rotor Earth Fault Protection of Generator

## Different Types of Faults in Power System

Different Types of Faults in Power System: A fault in an electrical equipment/apparatus is defined as a defect in the electrical circuit due to which current is diverted from the…

Continue Reading Different Types of Faults in Power System

## Symmetrical Fault Analysis Interview Questions and Answers

Symmetrical Fault Analysis Interview Questions and Answers: 1. What is meant by fault level ? Ans. When fault occurs at a point in a power system, the corresponding MVA is…

Continue Reading Symmetrical Fault Analysis Interview Questions and Answers

## Insulation Resistance of a System Interview Questions and Answers

Insulation Resistance of a System Interview Questions and Answers: 1. What are the faults that are likely to occur in cables ? Ans. The faults which are likely to occur…

Continue Reading Insulation Resistance of a System Interview Questions and Answers

## Linear Resistance Damping

Linear Resistance Damping: By introducing a linear resistance across the circuit breaker during interruption, the restriking transients are damped. Provision has to be made for subsequent interruption of the resistance…

Continue Reading Linear Resistance Damping

## Restricted Earth Fault Protection

Restricted Earth Fault Protection: This type of Restricted Earth Fault Protection is provided to detect earth-faults within the protected zone of the transformer. A CT is fitted in each connection…

Continue Reading Restricted Earth Fault Protection

## Directional Earth Fault Relay

Directional Earth Fault Relay: In the case of Directional Earth Fault Relay the angular relationship of residual current and residual voltage is independent of the faulted phase and is governed…

Continue Reading Directional Earth Fault Relay