Speed Measurement and Control Instrument
The speed measurement and control device is a specialized instrument for hydropower stations. It adopts a 32-bit microprocessor and digital processing technology to monitor the speed of water turbine generator units or motors in real-time. This device can connect external speed pulse sensors or voltage transformer signals, and output switch signals and analog signals corresponding to the unit speed at each speed point of the unit, serving automatic startup, shutdown, and power plant monitoring systems; it can also be set in 8 speed alarm outputs, as well as 8 speed outlet values on site, with 4-20mA transmission output function. The device adopts Modbus RTU communication protocol and RS-485 communication interface.