400v to 11kv Step Up Pole Transformer 500kva

The casing of 400v to 11kv step up pole transformer 500kva is made of high quality cold rolled steel or stainless steel. The key parts are automatically welded by advanced equipment and then inspected by laser technology to ensure a tight weld and eliminate the risk of oil leakage. After undergoing strict hot dip galvanizing treatment, the coating has strong corrosion resistance and can effectively protect against the erosion of wind and rain, salt fog, and industrial pollution. Its fully sealed design completely isolates the 500kva 400v to 11kv step up pole transformer core from the outside air. This not only enables maintenance free operation but also significantly delays the aging of the insulation materials.

By using copper foil to wind the low voltage windings and a high precision laminated iron core structure, the 500kva 400v to 11kv step up pole transformer's coils are designed to be extremely sturdy, capable of effectively resisting the huge radial and axial electrodynamic forces generated during short circuits, thus ensuring that the coils do not deform or get damaged. This 500kva 400v to 11kv step up pole transformer undergoes rigorous short circuit tests in accordance with international standards such as IEEE. We can provide corresponding test reports to demonstrate the operational capability of our product under extreme conditions.

Technical parameter:

Q:When stepping up the 400V low voltage power supply to 11kV for grid connection or long distance transmission, a 400v to 11kv step up pole transformer 500kva is selected. What technical factors need to be considered include the voltage regulation range, connection group , impedance voltage, insulation level?

A:For the 400v to 11kv step up pole transformer 500kva, the key technical factors are as follows: The recommended range for voltage regulation is no load voltage adjustment of ±2×2.5% on the high voltage side to compensate for voltage fluctuations on the low voltage side. The connection group should be selected as Dyn11, using the delta winding to suppress harmonics and the star winding to provide neutral point grounding. The impedance voltage standard is 4%, which can balance voltage drop and fault current. In terms of Insulation level, the high voltage side must meet 35kV for normal frequency and 75kV for lightning impulse. The outdoor creepage distance should be no less than 275mm to ensure safe operation in polluted and lightning strike environments.

Main Parts of Pole Mounted Transformers

Front Mounting type LV DB

Pole Line Hardware

Pole Mounted Transformer

Side Mounting type LV DB

Producing Equipments

Foil Winding Machine

Oil Filling Unit

Transformer Oven and Casting Unit

Transformer Oven

Testing Center

Transformers In Processing

Transformer in drying

Transformer in Winding 2

Transformer in Winding

Transfromer is in assemble