Transformer Protection Interview Questions and Answers: 1. What are the faults that are likely to occur in a power transformer ? Ans. The faults likely to occur in a power…
Transformer Protection Types: Nature of Transformer Faults: Power transformers, being static, totally enclosed and oil immersed develop faults only rarely but the consequences of even a rare fault may be…
Circulating Current Scheme for Transformer Protection: Merz-Price Circulating Current Scheme for Transformer Protection is commonly used for the protection of power transformers against earth and phase faults. The system as applied…
Generator Transformer Protection: Generator Transformer Protection - Protective relays, being component parts of electrical switchgear, should be closely associated with the control section of such systems, e.g. indicating and signalling systems. Thus the signalling and indicating systems…
Transformer Feeder Protection: Transformer Feeder Protection - In order to supply bulk power from a major switching station, the transformer is sometimes connected directly to the feeder without an HV…
Differential Protection of Transformers: Differential Protection of Transformers is the most important type of protection used for internal phase-to-phase and phase-to-earth faults and is generally applied to transformers having ratings…
Important Questions of Protection of Alternators and Transformers: 1. Discuss the important faults on an alternator. 2. Explain with a neat diagram the application of Merz-Price circulating current principle for…
Protection of Alternators and Transformers Articles: Balanced Earth Fault Protection : In small-size alternators, the neutral ends of the three-phase windings are often connected internally to a single terminal. Therefore,…