GRJS-600 series microcomputer protection measurement and control device adopts 32-bit microprocessor and digital processing technology. The measurement and protection share the same current sampling channel. It has 8 analog inputs, 8 switch inputs, and 2 relay outputs. With anti-trip configuration, the device has a small shape and complete functions. It adopts Modbus RTU communication protocol and RS-485 communication interface, and it’s mainly used in low-voltage hydropower stations and power distribution rooms of 10kV and below.
The microcomputer protection measurement and control device is a digital protection unit with current and voltage protection as the basic configuration. It is suitable for power distribution systems with a voltage level of 110kV and below. It has the functions of protection, measurement, control of circuits, transformers, motors, capacitors, generators and other equipment, as well as busbar PT measurement, busbar automatic switching, incoming line standby automatic switching, etc.. It can achieve the "four remotes" of the power station. We have 3 series, a total of dozens of products for microcomputer protection.
GRJS-6500 microcomputer protection measurement and control device adopts 32-bit high-performance DSP processor, digital processing technology, independent configuration of measurement and protection current sampling channels, with 16 analog inputs, 31 switch inputs, 15 relay outputs, and anti-trip function. The device adopts 103, Modbus communication protocol, two-circuit RS-485 and dual Ethernet communication interfaces, and it is mainly used for hydropower stations, substations, pumping stations and power distribution rooms of 220kV and below.