Product Center >> Hydro Turbine Governor >> CJWT Impact Type Microcomputer Governor

Introduction of CJWT series governor

CJWT impact type microcomputer governor is the hydraulic microcomputer governor technically designed for the impulse turbine.

It applies to the regulation and control of both single injector and multinozzle. The hydraulic control part of valve bank of the governor is controlled by unit, high-speed pulse valve controls needle servomotor’s opening, magnetic exchange valve controls deflector and servomotor. The electric control part can join the needle and deflector’s switch automatically, reducing the magnification of hydraulic pressure and movement of lever, stabilizing the operation as well as maintain the simple structure.

Functions of CJWT series governor
The pulse valve use Rexroth series valves.

The electric control part use programmable logic controller (PLC) as control core, and hard ware speed counter PLC is applied to frequency measurement directly, which promised the safety and anti-interference ability of the operation from the perspective of hardware facility.

On-line diagnostics direct at frequency signal and feedback quantity, maintain the opening under following circumstances: line broken, short circuit, controller power-losing, switch of AC and DC. Unconditional and without disturbance to changing between manual and automatic operation smoothly.

Governor compatible with the plant control loop, the following functions can be realized: starting up, halt, frequency adjustment, schedule opening, add or decrease the load, closing down urgently, manual operation.

Touch screen as the man-machine friendly contact surface.
Supply both AC and DC at the same time, or switch the current at will. (Dual power supply simultaneously but DC has priority)

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