SES was disliked by engine crews due to its habit of causing immediate penalty brake applications without first sounding an overspeed alarm and giving the engineer a chance to decelerate.
32.
Uncontrolled acceleration of the turbine rotor can lead to an overspeed trip, which causes the governor and throttle valves that control the flow of steam to the turbine to close.
33.
In aircraft, a centrifugal switch is used to control the starting and ignition circuits, the governed speed indication circuit and the overspeed protection circuit of the auxiliary power unit.
34.
The EMB-120 also had a history of " propeller overspeed, " a problem that can cause the propeller to race up to 50 percent faster than normal.
35.
In 1981, a similar system that used a hydraulic drive system and overspeed clutch arrangement accelerated the turbocharger of the MV " Canadian Pioneer " ( Doxford 76J4CR engine ).
36.
The tension of the speeder spring is set by the propeller control lever, which sets the RPMs . The governor will maintain that RPM setting until an engine overspeed or underspeed condition exists.
37.
Helium pressure gas from the vernier propellant tanks leaked into the sustainer RP-1 turbopump, leading to cavitation which caused propellant unloading, pump overspeed, and rupture of the propellant lines.
38.
Bird-nesting due to overspeed can occur either in operating traction motors of powered locomotives or in traction motors of dead-in-consist locomotives being transported within a train traveling too fast.
39.
In case of an overspeed, the train is unconditionally braked to the indicated speed limit, and then, if not acknowledged by a driver pressing a vigilance button, to a complete stop.
40.
He raised the nose of the aircraft in response to the warning and this reduced the rate of descent to about 2, 000 ft per minute, however, the VMO overspeed warning continued.
