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  2. Vacuum interrupter - Wikipedia

    en.wikipedia.org/wiki/Vacuum_interrupter

    After the 1970s, vacuum switches began to replace the minimal-oil switches in medium-voltage switchgear. In the early 1980s, SF6 switches and breakers were also gradually replaced by vacuum technology in medium-voltage application. As of 2018, a vacuum circuit-breaker had reached 145 kV with a short-circuit rating of 200 kA. [4]

  3. Recloser - Wikipedia

    en.wikipedia.org/wiki/Recloser

    In electric power distribution, automatic circuit reclosers (ACRs) are a class of switchgear designed for use on overhead electricity distribution networks to detect and interrupt transient faults. Also known as reclosers or autoreclosers , ACRs are essentially rated circuit breakers with integrated current and voltage sensors and a protection ...

  4. Vacuum delay valve - Wikipedia

    en.wikipedia.org/wiki/Vacuum_delay_valve

    These are commonly used in automobiles to alter the behavior of vacuum switches, vacuum motors, and other vacuum devices. The engine in a common automobile produces almost 20 inches of mercury (68 kPa ) of vacuum, and this pressure differential has been utilized for everything from automatic locks and windshield wipers to operating emissions ...

  5. ASCO Power Technologies - Wikipedia

    en.wikipedia.org/wiki/ASCO_Power_Technologies

    With over 1400 employees and 500,000 square feet of manufacturing floor space, it is the world's largest manufacturer of power transfer switches. ASCO Power Technologies was founded in 1888 and developed the first commercially available automatic transfer switch in 1920.

  6. Watchdog timer - Wikipedia

    en.wikipedia.org/wiki/Watchdog_timer

    For example, a watchdog timer may be used when running untrusted code in a sandbox, to limit the CPU time available to the code and thus prevent some types of denial-of-service attacks. [2] In real-time operating systems , a watchdog timer may be used to monitor a time-critical task to ensure it completes within its maximum allotted time and ...

  7. Resettable fuse - Wikipedia

    en.wikipedia.org/wiki/Resettable_fuse

    Resettable fuses - PolySwitch devices. A resettable fuse or polymeric positive temperature coefficient device (PPTC) is a passive electronic component used to protect against overcurrent faults in electronic circuits.

  8. Ignition timing - Wikipedia

    en.wikipedia.org/wiki/Ignition_timing

    Pressure in cylinder pattern in dependence on ignition timing: (a) - misfire, (b) too soon, (c) optimal, (d) too late. In a spark ignition internal combustion engine, ignition timing is the timing, relative to the current piston position and crankshaft angle, of the release of a spark in the combustion chamber near the end of the compression stroke.

  9. Integral windup - Wikipedia

    en.wikipedia.org/wiki/Integral_windup

    Within modern distributed control systems and programmable logic controllers, it is much easier to prevent integral windup by either limiting the controller output, limiting the integral to produce feasible output, [5] or by using external reset feedback, which is a means of feeding back the selected output to the integral circuit of all ...

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