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  2. Fault indicator - Wikipedia

    en.wikipedia.org/wiki/Fault_indicator

    In such cases the user should consider the downstream capacitive discharge current to avoid false operation of the non-directional indicators. Some overhead line fault indicators called as pole mounted fault indicators can detect the live line and the fault current from 3 to 5 metres (9.8 to 16.4 ft) below the conductors.

  3. Stray voltage - Wikipedia

    en.wikipedia.org/wiki/Stray_voltage

    The very small capacitance between overhead lines and a fluorescent lamp tube (in the foreground of the photo) provides enough current to cause the lamp to glow. Ungrounded metal objects close to electric field sources such as neon signs or conductors carrying alternating currents may have measurable voltage levels caused by capacitive coupling.

  4. Recloser - Wikipedia

    en.wikipedia.org/wiki/Recloser

    Residential customers in areas fed by affected overhead power lines can occasionally see the effects of an autorecloser in action. If the fault affects the customer's own distribution circuit, they may see one or several brief, complete outages followed by either normal operation (as the autorecloser succeeds in restoring power after a ...

  5. Fault trace - Wikipedia

    en.wikipedia.org/wiki/Fault_trace

    The term also applies to a line plotted on a geological map to represent a fault. These fractures tend to occur when a slip surface expands from a fault core, especially during an earthquake. This tends to occur with fault displacement, in which surfaces on both sides of a fault, known as fault blocks, separate horizontally or vertically. [1]

  6. Electrical fault - Wikipedia

    en.wikipedia.org/wiki/Electrical_fault

    line-to-ground fault - a short circuit between one line and ground, very often caused by physical contact, for example due to lightning or other storm damage. In transmission line faults, roughly 65% - 70% are asymmetric line-to-ground faults. [2] double line-to-ground fault - two lines come into contact with the ground (and each other), also ...

  7. Researchers gain clearest picture yet of fault that threatens ...

    www.aol.com/news/big-one-researchers-gain...

    The scientists found that the subduction zone is much more complex than they previously understood: It is divided into four segments that the researchers believe could rupture independently of one ...

  8. Dynamic line rating for electric utilities - Wikipedia

    en.wikipedia.org/wiki/Dynamic_line_rating_for...

    Several methods have been developed since the 1990s, most of which rely upon sensors deployed on overhead lines to measure parameters in real-time. Other systems utilize weather stations that monitor environmental conditions without contacting the line. Data received from any method is reported to a main computer for processing.

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