TRIP MECHANISM FOR TURBINE TRIP VALVE

摘要

The trip mechanism for operating the turbine trip valve to closed position includes an actuating lever mounted at one end for movement about a fixed pivot and being provided at the opposite end with a cam block. Spring means or the like acts upon the actuating lever to move the cam block into engagement with the trip valve restraining member to move it out of restraining position for closure of the trip valve. A latch is provided for latching the actuating lever against such pivotal movement. The latch is moved out of latching position by means, such as a solenoid, responsive to a signal indicative of an abnormal situation detrimental to the operation of the turbine.