Power-equipment manufacturer Tengen Electric produced its first mass-production solid-state transformer, converting 10-kV alternating current directly into direct current.

The company reported that its first mass-production solid-state transformer rolled off the line on October 16. The supplied message identifies Tengen Electric by stock code 605066. This is a reported manufacturing milestone rather than a disclosed customer installation.

The solid-state transformer, or SST, integrates several conversion and control elements. These include semiconductor power devices, a high-frequency transformer, and a digital control system. The company says the product converts a 10-kilovolt alternating-current input directly into the required direct-current output.

Its stated functions extend beyond voltage conversion. The product also provides electrical isolation, reactive-power compensation, and power-flow control, with intended applications in AI computing, new energy, and new power systems. The report does not disclose output voltage, rated power, efficiency, production volume, pricing, or customer orders.