The world's first industrial-grade 550 kV rectifier transformer has successfully passed all type and routine tests in a single testing session, marking a significant milestone in the field of ultra-high voltage industrial power equipment.

Developed by Jiangxi Transformer Science & Technology Co., Ltd. , this innovative transformer is equipped with 550 kV dry‑type condenser high‑voltage bushings manufactured by Shandong Qixing High Voltage Electric Co., Ltd. — a leading Chinese manufacturer of high‑voltage insulation products.

As the core component of industrial DC power supply systems, the 550 kV rectifier transformer demands exceptional performance from its bushings in terms of:
· Insulation reliability under extra‑high voltage
· Partial discharge control at ultra‑high levels
· Mechanical stability under high‑current operating conditions

Qixing's bushings delivered outstanding results throughout the rigorous testing process, demonstrating full compliance with the most stringent technical requirements. The successful test further validates the capability of domestically manufactured high‑end bushings for use in industrial‑grade critical equipment.

About Shandong Qixing High Voltage Electric Co., Ltd.

Founded in 2013, Shandong Qixing is a trusted global supplier of dry‑type condenser RIP / RIS / RIF Transformer Bushings, GIS Bushings, and Wall Bushings, covering voltages from 10 kV to 550 kV and currents from 5 A to 40,000 A.

With 50,000+ units installed in over 60 countries, the company serves industry leaders including Siemens, ABB, China XD, TBEA, Taikai, Sieyuan, and State Grid.

Qixing operates its own 550 kV ultra‑high voltage test laboratory with a background partial discharge level below 3 pC, and holds ISO 9001, 14001, 45001, and CE certifications, with all products fully compliant with IEC 60137 and GB/T 4109.

Contact:
Ana Xu | Export Manager
Email: sales2@qxelectric.com
WhatsApp: +86 133 9635 8192
Website: www.qxelectric.com