Related InterviewSolutions

• Explain the operation of silica gel breather. 
• What is the design basis of 6.6 kV aluminium bus bars? 
• Why core balance CT is preferred over residual connected CT’s to sense earth fault in 6.6 kV feeders? 
• Why 2 types of earth fault relays in 6.6 kV side of transformers? 
• Define the percentage voltage regulation and efficiency of a power transformer. 
• Why SET is chosen as Dyn 11?
• Why water pressure is kept below the oil pressure? How it is maintained? 
• Why all 415V transformers are chosen Dyn 11? What are the protections provided for the 415V transformers?
• What type oil pumps are used?
• What is oil reclaiming and reconditioning?