SAL31L测控保护装置技术说明书：功能配置与使用指南-线路.doc

The SAL31L line protection device is a versatile and reliable tool designed for use in medium to high voltage systems ranging from 6kV to 110kV. It is suitable for ground neutral lines, lines with arc suppression coils, or lines with low resistance grounding, meeting the requirements for both protection and remote control standards. The SAL31L-2 model comes equipped with a range of essential functions including overcurrent protection, directionality locking, overload protection, acceleration after closing, voltage loss detection, phase coincidence closing, low-frequency load reduction, low-voltage load reduction, overvoltage protection, zero-sequence current protection, line selection based on grounding, fault detection, waveform recording, synchronous closing operation, circuit breaker control, and compatibility with printers for data output. The technical specifications of the device include a power supply of DC 220V or 110V, with the option for AC power supply at 100V and 50Hz frequency. It operates with a power consumption that is standard for its functionality, ensuring efficient and effective performance in a variety of operating conditions. Overall, the SAL31L line protection device is a comprehensive and advanced solution for the safeguarding of electrical systems, providing a wide range of protective functions and operational capabilities to maintain the integrity and reliability of power transmission networks. Its user-friendly design and robust construction make it an essential tool for ensuring the safety and efficiency of critical electrical infrastructure. Whether used in industrial facilities, power plants, or utility substations, the SAL31L line protection device offers superior performance and peace of mind for operators and technicians working in the field of electrical engineering.