Product Center >> Hydro Turbine Governor >> YWT series High Hydraulic Microcomputer Governor

Introduction of YWT series high hydraulic governor

YWT series high hydraulic microcomputer governor consists of microcomputer governor, hydraulic servo and the oil pressure devices.

The hardware adopts modular construction with the characteristics of highly dependability, compact structure, convenient operation, high liability, fast response time, easy to operate, repair, and expansion, etc..

Apply to small and medium sized mixed-flow, tubular fixed plasma type, axial given paddle and the impact water-turbine generator set.

The microcomputer controller adopts the imported programmable logic controller as central control unit, and touch screen as the human-machine friendly interface. The Ethernet, RS232, RS422 or RS485 are used as the communication interface. Both AC and DC power supply systems are put into the speed governor, which can transfer into manual operation when the AC or DC functionalities have gone. The hydraulic slave system adopts the digital proportional valves to drive hydraulic servomotor directly, without bothering the mechanical lever and clearing oil pipeline system, solving the traditional problem of components susceptible to jamming because of electro-hydraulic converter.

The installation of hydraulic servomotor uses an external form and connected with the speed governor directly by pressure tubing.

The hydraulic device adopts the bladder accumulators that can cancel the high pressure air system to save investment for the power station.

The YWT type high hydraulic impact and microcomputer governor adopts the adaptive variable structure, change parameters and parallel PID regulating mode, whose operation modes are automatic switch, shut down, frequency modulation, increase or decrease the load, emergency shut-down etc.. They can be controlled by the governor from the machine or even remote control. The net frequency adjustment can be automatically traced in no-load condition and quick grid-connection without impulse. This software has strong functions in self diagnosis, fail-safe, fault-tolerant and error correction to ensure the unitís safe operation. Furthermore, it can configure the color touch screen, improve governorís water level control and regulate power according to the userís needs.

Basic parameters of YWT series high hydraulic governor



PID Parameters Setting Range

Proportional Gain


Integral Gain

0-10 1/s

Derivative Gain

0-5 s

Permanent Speed Droop


Artificial Frequency Dead Band


Frequency Setting


Gate Opening Setting


Power Setting


Electric Gate Opening Limited Setting


Rated Operating Oil Pressure


The model code of the YWT series high hydraulic governor
1. Dynamic characteristics Y: Governor with servomotor and pressure tank
2. Regulator features W: Microcomputer electro hydraulic governor
3. Product feature T: Governor
4. Capacity of servomotor
Specifications include: 3000, 6000, 10000, 18000, 30000, 50000, 80000, 100000, 125000, 150000 unit:NēM

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