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  2. Brownout (electricity) - Wikipedia

    en.wikipedia.org/wiki/Brownout_(electricity)

    The term brownout comes from the dimming of incandescent lighting when voltage reduces. In some countries, the term brownout refers not to a drop in voltage but to an intentional or unintentional power outage (or blackout). [4] [5] [6]

  3. Power outage - Wikipedia

    en.wikipedia.org/wiki/Power_outage

    A brownout is a drop in voltage in an electrical power supply. The term brownout comes from the dimming experienced by incandescent lighting when the voltage sags. Brownouts can cause poor performance of equipment or even incorrect operation. A blackout is the total loss of power to a wider area and of long duration. [1]

  4. List of major power outages - Wikipedia

    en.wikipedia.org/wiki/List_of_major_power_outages

    November 9—United States and Canada—The Northeast blackout of 1965 affected portions of seven northeastern U.S. states and Ontario.Most radio and television stations within the area lost power or lost teletype communications, so people within the blackout area relied on broadcasts from other areas to learn information about the blackout.

  5. Electric power quality - Wikipedia

    en.wikipedia.org/wiki/Electric_power_quality

    The term "brownout" is an apt description for voltage drops somewhere between full power (bright lights) and a blackout (no power – no light). It comes from the noticeable to significant dimming of regular incandescent lights, during system faults or overloading etc., when insufficient power is available to achieve full brightness in (usually ...

  6. Internet outage - Wikipedia

    en.wikipedia.org/wiki/Internet_outage

    An Internet outage or Internet blackout or Internet shutdown is the complete or partial failure of the internet services. It can occur due to censorship, cyberattacks, disasters, [1] police or security services actions [2] or errors. Disruptions of submarine communications cables may cause blackouts or slowdowns to large areas. Countries with a ...

  7. Uninterruptible power supply - Wikipedia

    en.wikipedia.org/wiki/Uninterruptible_power_supply

    In low-voltage conditions the UPS will use more current than normal, so it may need a higher current circuit than a normal device. For example, to power a 1000 W device at 120 V, the UPS will draw 8.33 A. If a brownout occurs and the voltage drops to 100 V, the UPS will draw 10 A to compensate.

  8. Rolling blackout - Wikipedia

    en.wikipedia.org/wiki/Rolling_blackout

    A room during load shedding at night in West Bengal, India. A rolling blackout, also referred to as rota or rotational load shedding, rota disconnection, feeder rotation, or a rotating outage, is an intentionally engineered electrical power shutdown in which electricity delivery is stopped for non-overlapping periods of time over different parts of the distribution region.

  9. Northeast blackout of 2003 - Wikipedia

    en.wikipedia.org/wiki/Northeast_blackout_of_2003

    The blackout's proximate cause was a software bug in the alarm system at the control room of FirstEnergy, which rendered operators unaware of the need to redistribute load after overloaded transmission lines drooped into foliage. What should have been a manageable local blackout cascaded into the collapse of much of the Northeast regional ...