FAQs – 500 KVA Transformer
What is a 500 kVA Distribution Transformer?
A 500 kVA Distribution Transformer is a three-phase electrical device that converts medium-voltage electricity (like 11 kV or 6.6 kV) to low-voltage electricity (like 415 V) for industrial, commercial, and large residential applications. It provides stable voltage, efficient power distribution, and protects equipment from voltage fluctuations.
Where is a 500 kVA Transformer typically used?
This transformer is commonly used in factories, manufacturing plants, large commercial complexes, hospitals, apartment blocks, and utility distribution substations where high-load, low-voltage supply is required.
What are the key features of a 500 kVA Distribution Transformer?
Key features include high efficiency with low losses, robust copper or aluminium windings, oil-immersed or dry-type cooling, voltage regulation taps, three-phase operation, overload protection, and compliance with standards like IEC 60076 and IS 1180.
How should a 500 kVA Transformer be maintained?
Maintenance includes checking oil levels and quality (for oil-filled types), inspecting bushings and connections, monitoring operating temperature, cleaning dust or debris, performing insulation resistance tests, and avoiding overload to ensure long-term performance and safety.
What load can a 500 kVA Transformer handle, and is overloading safe?
A 500 kVA transformer can safely handle around 400 kW at 0.8–0.9 power factor. Overloading beyond its rated capacity can cause overheating, higher energy losses, reduced lifespan, and potential failure. It is recommended to operate within rated limits for optimal performance.
