Along with the increase in voltage level of power transmission lines, adding current-limiting reactor to limit the short-circuit current has become the most convenient, economical, and reliable method to maintain the power grid stabilization. We've been leading in developing air-core reactors with the highest voltage level and capacity domestically. BPEG produced the 500kV current-limiting reactor independently in 2012, which achieved the maximum reactor capacity in the world.
Epoxy glass fiber wet winding technology is adopted for the coil, modeling in integral by the high temperature curing. The product is cooled by way of nature cross-ventilation and has the features such as low loss, low noise, high dynamic and thermal stability, high reliability, easy to assemble and maintain, good linearity, etc.. It is the most advanced technology in China.
Smoothing reactor is used in DC circuit to be in series with current converter. Its function is to restrain the DC side current and voltage impulse of current converter. Smoothing reactor is significant major equipment in DC converter stations. We've accomplished developing and manufacturing of 12 types of dry-type air- core reactors including smoothing, shunt, series, filtering, current-limiting, testing, and damping reactor.
BPEG is the earliest domestic manufacturer of arc suppression coil, and has rich experience in production and technology development. In 1993, we produced the first on-load arc suppression coil in China, and in 1996 we developed the first domestic set of arc-extinction ground-connected compensator.
BPEG is the earliest domestic iron core reactor manufacturer, and has accomplished development of serialized products of 34 specifications including cast resin dry type iron core reactor and oil-immersed iron-core shunt reactor. We're leading in designing methods, manufacturing level, and testing capabilities in this industry.