FAQs – 400 KVA Electrical Transformer
What is a 400 kVA Distribution Transformer?
A 400 kVA Distribution Transformer is an electrical device that steps down medium-voltage electricity to low-voltage for industrial, commercial, or large residential use. It provides reliable power distribution, voltage stability, and protects connected equipment from voltage fluctuations.
Where can a 400 kVA Transformer be used?
It is commonly used in factories, industrial parks, large offices, commercial complexes, hospitals, and distribution substations to convert medium-voltage (11 kV or 6.6 kV) to low-voltage (415 V) for safe equipment operation.
What are the main features of a 400 kVA Distribution Transformer?
Key features include high efficiency, low energy loss, robust copper or aluminum windings, oil or dry-type cooling, voltage regulation taps, three-phase operation, overload protection, and compliance with IEC/IS electrical standards.
How should a 400 kVA Transformer be maintained?
Regular maintenance involves checking oil levels (for oil-cooled types), inspecting connections, monitoring temperature, cleaning dust, performing insulation resistance tests, and avoiding overload to ensure long-term reliability and efficiency.
What load can a 400 kVA Transformer handle and is overloading safe?
A 400 kVA transformer can handle approximately 360 kW at 0.9 power factor. Overloading can cause overheating, increased losses, and reduced lifespan, so operating within rated capacity is recommended for safety and efficiency.
