Fintech Interview Questions and Answers

The ten delta test is a diagnostic test used to assess the condition of power transformers.

• The ten delta test measures the change in power factor between the initial and final stages of a transformer's life.

• It is used to detect insulation deterioration and moisture content in the transformer oil.

• Equipment used for the ten delta test includes a power factor test set, a transformer turns ratio tester, and a megohmmeter.

RCBO combines the functions of an RCD and a miniature circuit breaker, while RCCB and ELCB are older versions of RCDs.

• RCBO combines overcurrent protection (like a circuit breaker) with earth fault protection (like an RCD)

• RCCB is an older version of RCD that only detects earth faults

• ELCB is an even older version of RCD that detects earth faults by measuring the current imbalance between live and neutral wires

• RCBO is commonly used in modern electrical installations for better p...read more

High pot test is done to check the insulation of electrical equipment.

• High pot test is done to ensure the insulation in electrical equipment can withstand high voltage without breaking down.

• It helps in identifying any weaknesses or defects in the insulation that could lead to electrical hazards.

• The test involves applying a higher than normal voltage to the equipment to see if the insulation can handle it.

• High pot testing is commonly done on cables, transformers, and other ele...read more

HT cables are high tension cables used for transmitting electricity at high voltages.

• HT cables are designed to carry high voltage electricity, typically above 11kV.

• They are insulated to prevent leakage of current and ensure safety.

• HT cables are usually made of materials like cross-linked polyethylene (XLPE) or ethylene propylene rubber (EPR).

• They are often armored to protect against physical damage and environmental factors.

• HT cables must meet specific standards and regulatio...read more

UPM in data centre involves managing electrical systems, ensuring uptime, and implementing energy efficiency measures.

• Managing electrical systems to ensure continuous power supply

• Implementing energy efficiency measures to reduce costs

• Monitoring and maintaining backup power systems

• Troubleshooting electrical issues to minimize downtime

• Coordinating with other departments for electrical maintenance schedules

Isolation transformers are used to isolate electrical devices from the power source for safety and protection.

• Isolation transformers have primary and secondary windings that are electrically separated to prevent direct current flow between the input and output.

• They are commonly used in medical equipment, data centers, and sensitive electronic devices to protect them from electrical noise and voltage spikes.

• Isolation transformers can also be used to step up or step down voltag...read more