Sitson India Interview Questions and Answers

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to increase or decrease voltage levels in electrical circuits.

• Maintenance of transformers includes regular inspection of insulation, checking for overheating, and testing oil quality.

• Routine maintenance tasks for transformers may include cleaning, tightening connections, and checking for leaks.

• Examples of transformer maint...read more

Electrical maintenance ensures the proper functioning and safety of electrical systems and equipment.

• Regularly inspecting and testing electrical systems and equipment

• Identifying and repairing any faults or malfunctions

• Performing preventative maintenance to avoid breakdowns

• Updating and upgrading systems to meet current standards

• Ensuring compliance with safety regulations and codes

Transformers are rated in kVA to indicate their power handling capacity.

• kVA rating represents the maximum amount of power a transformer can handle.

• It is a measure of the transformer's apparent power, which includes both the real power (measured in kW) and reactive power (measured in kVAR).

• The kVA rating helps determine the appropriate size of the transformer for a given load.

• Higher kVA rating indicates a larger transformer capable of handling higher power loads.

• For example, a...read more

Maintenance of DG involves regular inspections, testing, and servicing to ensure optimal performance and prevent breakdowns.

• Regularly inspecting and testing the DG set for any signs of wear and tear

• Performing routine servicing such as oil and filter changes

• Checking and maintaining the cooling system to prevent overheating

• Ensuring proper fuel supply and monitoring fuel levels

• Testing the backup power supply to ensure it functions properly during power outages

Maintenance of PCC panel involves regular inspection, cleaning, testing, and replacement of faulty components.

• Regularly inspect the panel for any signs of wear, damage, or overheating

• Clean the panel and components to prevent dust buildup and ensure proper functioning

• Test the panel's electrical connections, circuits, and components for any faults

• Replace any faulty components such as fuses, circuit breakers, or contactors

• Ensure proper labeling of components for easy identificat...read more