CSP200 series microcomputer protection devices extensively incorporate existing technologies and experiences from both domestic and international sources, while introducing technological innovations and reforms. Their product line covers protection and control systems for transmission and distribution lines as well as main equipment at voltage levels of 35kV and below, providing comprehensive solutions for substation automation across all voltage levels.

CSP200 series microcomputer protection device is composed of high integration, bus-on-chip single-chip microcomputers, high-precision current and voltage transformers, high-insulation-strength export intermediate relays, and high-reliability switching power supply modules. It features high integration, complete protection configuration, strong anti-interference capability, low power consumption, and resistance to harsh environments. The product is designed with 12 input circuits, fully meeting the signal acquisition requirements of automation systems, and includes a complete control circuit. Additional functions such as anti-tripping, fault-locking closing circuit, and undervoltage-locking closing circuit are incorporated, all controlled by the device's internal logic. The anti-tripping function does not conflict with the circuit breaker's anti-tripping mechanism, offering users greater convenience—this is a pioneering design among domestic and international counterparts. With powerful functionality, the product includes 11 analog input sampling channels and 9 export circuits, strictly separating protection export and remote control export functions. The product's exterior has been meticulously designed.