Model Description:

Technical Parameters:

1. The high-quality cold-rolled silicon steel sheet is adopted for the iron core. It uses a 450 fully-beveled seam, 3-step overlapping, which can effectively reduce the no-load loss, no-load current, and noise.

2. The grid and valve sides winding shall be Level H insulation, thermal endurance class 1800C/356°F, the coil is wound with oxygen-free copper wire wrapped with nomex paper. A special process and structure are adopted, and it is immersed in paint with VPI vacuum pressure for high-temperature curing, which not only improves mechanical strength of the product, but also enables it to have a overload capability to withstand shock cooling and heating.

3. The cooling mode is air cooling, and the thermostat is equipped to achieve fan start-stop, overtemperature alarm trip and other functions.

4. The valve side winding with multi-phase phase shift is rectified and has a large number of pulse waves in one cycle, which can effectively reduce pollution of harmonic wave on power grid.

1. The elevation shall not exceed 1,000m

2. Ambient Temperature          Maximum temperature                               +40℃/104°F

                                                Maximum daily average temperature         +30℃/86°F 

                                                Maximum annual average temperature      +20℃/68°F

                                                Minimum temperature                                 -5℃/23°F (applicable for the indoor transformer)

3. The transformer shall be not be soaked in water, rain and snow during use

4. The supply voltage waveform shall be similar to sine wave, and the supply voltage connected with the multi-phase transformer shall be approximately symmetrical