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Governor of large impulse turbine unit



CJT4/4 or JT6/6 series governor for impulse turbine unit is a new generation governor developed by the Company according to the features of high head, high absolute speed, and multiple control points of impulse turbine unit. This series has passed related authentication (1998 Jian Zi No. 2042).


Main characteristics

1. Intelligent PID control for variable parameter and variable structure, which ensures stable operation of turbine unit under different working conditions;

2. Technology for digital cam, which ensures high operational efficiency and low vibration of turbine unit;

3. Technology for electro-hydraulic proportional servo, which ensures high control accuracy;

4. Start and operation of single injector/multiple injectors, and intelligent undisturbed switching;

5. High-reliability deflector operating mechanism;

6. Online self-diagnosis and fault handling.

7. Design for high-level anti-electromagnetic interference.

8. Special communication interface is adopted to realize the communication with upper computer.


Patented technologies

1. Electro-hydraulic proportional follow-up unit for hydroturbine governor (Patent No.: 95 2 38033.1).




Main configuration

Electrical cabinet: PLC/PCC controller, color touch screen, and digital feedback;

Mechanical cabinet: high-reliability electro-hydraulic proportional servo valve, and digital deflector control module.