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Owner of data set Kyte Powertech Limited |
Technical purpose 3-Phase 630 kVA – 10.5/0.4 kV De-energized Tap Changer Distribution Oil-Filled Transformer (Model: ZENA) manufactured by Kyte Powertech Limited, Cavan, Ireland.
The product is unambiguously identified as a 630 kVA oil-immersed distribution transformer designed and manufactured in accordance with applicable IEC standards for power transformers.
Technical and Functional Characteristics
The transformer is designed for medium-to-low voltage electrical energy distribution networks and operates under the following technical specifications:
Rated power: 630 kVA
Frequency: 50 Hz
Primary voltage (HV): 10.5 kV
Secondary voltage (LV): 400 V
Vector group: Dyn5
Cooling method: ONAN (Oil Natural Air Natural)
Short-circuit impedance (uk): 4%
Maximum operating voltage (Um): 12 kV
Power frequency withstand voltage (AC): 28 kV
Lightning impulse withstand voltage (LI): 75 kV
Environmental class: A
The transformer is hermetically sealed and filled with mineral insulating oil, which provides both electrical insulation and thermal management. The core is constructed from grain-oriented silicon steel to minimize magnetic losses. Windings are manufactured from aluminium conductors with oil-impregnated paper insulation. The unit includes a de-energized tap changer for voltage adjustment.
Relevant Technical Data and Reference Service Life (RSL)
The declared Reference Service Life (RSL) is 30 years, assuming normal operating conditions and appropriate maintenance within electrical distribution networks.
Intended Application
The transformer is intended for use in electrical energy distribution networks, typically installed in substations or distribution points within industrial, commercial, and residential power systems.
Applicable Standards and Testing
The product is designed and tested in accordance with applicable IEC standards for power transformers, including but not limited to:
IEC 60076 series (Power Transformers)
Routine, type, and special tests are performed according to the relevant IEC standards before dispatch. |
