SL1101KVA～SL1103KVA power UPS produced by Sungrow Power Supply Co., Ltd. is designed for power plants and substations. It has online and zero delay conversion function, and is mainly used in places where the voltage requirements of the load are high, such as electric remote control, RTU, power carrier, monitoring, etc. The product has the characteristics of improving power quality, power failure protection, noise suppression, internal installation of reverse diodes, isolation of AC bus and DC bus, delay soft start function and alarm function.

The document describes the features and characteristics of the radar level liquid level sensor, including measurement range, resolution, measurement accuracy, etc.

This document is the operation manual for REX 521 feeder and motor protection relay, which describes the features and functions of the product.