Power System Resources, also known as PSR, offers a range of protective relays and condensate polisher systems. Established in 1992, the company is an authorized sales representative and distributor in China for companies that serve the electric utility and industrial markets. It distributes oil-filled transformers and water fault detection and moisture monitoring systems from Canadian Morgan Schaffer Systems. Power System Resources operates Haiyan Power System Resources Company in a partnership with Hai Yan Electric Power Meter Factory. It utilizes the Fulsep technology and operates sales offices in Beijing. The company has worked with the Buell Division of Fisher-Klosterman. Power System Resources offers product testing and maintenance services.