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  2. List of hydroelectric power station failures - Wikipedia

    en.wikipedia.org/wiki/List_of_hydroelectric...

    Schoellkopf Power Station: Niagara Falls, New York United States: Destruction of the plant as it fell from the Niagara Gorge wall and collapsed into the Niagara River, caused by water seeping into the back wall of the power station. One worker was killed and damage was estimated at US$100 million (or $1121 million today, adjusted for inflation).

  3. Boiling water reactor safety systems - Wikipedia

    en.wikipedia.org/wiki/Boiling_water_reactor...

    The Reactor Protection System (RPS) is a system, computerized in later BWR models, that is designed to automatically, rapidly, and completely shut down and make safe the Nuclear Steam Supply System (NSSS – the reactor pressure vessel, pumps, and water/steam piping within the containment) if some event occurs that could result in the reactor entering an unsafe operating condition.

  4. Valve actuator - Wikipedia

    en.wikipedia.org/wiki/Valve_actuator

    The blue valve body is visible in-line with the pipe. The valve actuator opens or closes the butterfly disc of the valve based on electrical signals sent to the actuator. Another valve actuator is visible in the background, with windows to indicate the valve position. A valve actuator is the mechanism for opening and closing a valve. Manually ...

  5. Nuclear reactor safety system - Wikipedia

    en.wikipedia.org/wiki/Nuclear_reactor_safety_system

    Steam turbine driven cooling pumps with pneumatic controls can run at mechanically controlled adjustable speeds, without battery power, emergency generator, or off-site electrical power. The Isolation cooling system is a defensive system against a condition known as station blackout.

  6. Isolation valve - Wikipedia

    en.wikipedia.org/wiki/Isolation_valve

    An isolation valve is a valve in a fluid handling system that stops the flow of process media to a given location, usually for maintenance or safety purposes. [1] They can also be used to provide flow logic (selecting one flow path versus another), and to connect external equipment to a system. [2]

  7. List of power stations in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_power_stations_in...

    The list below outlines power stations of significance by type, or by the state in which they reside. By type The following pages lists the power stations in the ...