The original purpose of the over speed protec Controller is to prevent the turbine generator from exceeding the speed limit and avoid turbine tripping due to over 110% speed of the unit. In addition, when power system failures are removed, part of the load can be helped to improve the stability of the power system. It depends on the following three functions: CIV-CLOSE INTERCEPTOR VALVES, LDA-LOAD DROP ANTICIPATION, and OPC-OVERSPEED PROTECTION CONTROL.
The OPC solenoid valve Z2804076 is the overspeed protection and control solenoid valve, and the OPC solenoid valve is shut off at normal operation and closes the discharge channel of the OPC overspeed mother tube oil. The pressure is set up under the piston of the actuator of the actuator and the medium pressure regulating valve. When the speed of the unit is rated 103%, the solenoid valve is opened to make OPC The mother tube leaks oil. The unloading valve on the corresponding actuator opens quickly to close the regulating valve.
The same series of products are:
AST solenoid valve ZD.02.004
stator cooling water pump YCZ65-250B
AST solenoid valve Z2805013
stator cooling water pump YCZ65-250C
stator cooling water pump YCZ65-250A
shutdown electromagnet D125A-413000A