500 KVA Power Distribution Transformer
| Power Rating | 500 kVA |
| Cooling Type | Dry Type |
| Phase | 3 Phase |
| Frequency | 50 Hz |
| Input Voltage | 220 V |
| Cooled Type | Air Cooled |
Power Distribution Transformers—also known as service transformers—are used to provide the final step-down of voltage in the power distribution system. They reduce medium-voltage levels such as 6.6 kV, 11 kV, or 33 kV to standard low voltages of 240 V or 400 V, which are suitable for residential, commercial, and small industrial users. Typically rated below 200 kVA, distribution transformers are widely installed in neighborhoods and play a vital role in everyday electricity supply.
Key Points:
Distribution transformers usually operate under variable loads that are often lower than their full-load rating. Therefore, they are designed to achieve maximum efficiency at 50% to 75% of full load.
They offer good voltage regulation, typically around 2.5%.
They perform the final voltage transformation in the power distribution system.
Used to step down distribution line voltages to levels required by end-users.
Power rating is generally up to 200 kVA.
Unlike distribution transformers, power transformers (used in transmission networks) are designed for much higher ratings, typically up to 200 MVA or more.
Distribution transformers are usually connected in a delta-star configuration.