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Lack of 3-phase electric system connected by star. If neutral breaks off, small-power appliances will be destroyed by overvoltage. Electronic and electrical devices are designed to operate at a certain maximum supply voltage, and considerable damage can be caused by voltage that is higher than that for which the devices are rated.
However voltage spikes can also have more mundane causes such as a fault in a transformer or higher-voltage (primary circuit) power wires falling onto lower-voltage (secondary circuit) power wires as a result of accident or storm damage. Voltage spikes may be longitudinal (common) mode or metallic (normal or differential) mode.
Power outages are categorized into three different phenomena, relating to the duration and effect of the outage: A transient fault is a loss of power typically caused by a fault on a power line, e.g. a short circuit or flashover. Power is automatically restored once the fault is cleared. A brownout is a drop in voltage in an electrical power ...
Insulator damage by weakening of the insulator structures. Junction damage by lowering minority carrier lifetimes, increasing forward-bias resistance and increasing reverse-bias leakage. Metallisation damage by conductor weakening. Catastrophic failures require the highest discharge voltages, are the easiest to test for and are rarest to occur.
The locking mechanism, which is electric with a manual back-stop, broke in mid-April after a power surge, SCSO said. "This did not impact regular operations. The parts have been ordered," Lt ...
Hyundai and Kia are recalling over 208,000 electric vehicles to fix a pesky problem that can cause loss of drive power, increasing the risk of a crash. The recalls cover more than 145,000 Hyundai ...
TV pickups occur during breaks in popular television programmes and are a surge in demand caused by the switching on of millions of electric kettles to brew cups of tea or coffee. Kettles in the UK are particularly high powered, typically consuming 2.5–3.0 kW and create a very high peak demand on the electrical grid.
After 14 seasons, Blue Bloods will air its final episode Friday, Dec. 13. The CBS procedural will draw to a close with its 293rd episode, "End of Line," the 18th episode of the final season.