overvoltage

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الإنجليزية - التركية
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overvoltage protection
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overvoltage relay
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lightning overvoltage
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الإنجليزية - الإنجليزية
The hazardous condition that occurs when the voltage in a circuit is raised above that for which it was designed
The difference between the electric potential of an electrode or cell under the passage of a current and the thermodynamic value of the electrode or cell potential in the absence of electrolysis; overpotential
A voltage exceeding the normal, intended or allowed maximum voltage
An overvoltage is an increase in the rms ac voltage greater than 110% at the power frequency for a duration longer than 1 minute Overvoltages are usually the result of a large load switching off or the energization of a capacitor bank They result because the system is either too weak for the desired voltage regulation or the voltage controls are inadequate Incorrect tap settings on transformers can also result in system overvoltages
A voltage greater than the rating of a device or component Normally overvoltage refers to long term events (several AC cycles and longer) The term can also apply to transients and surges
A voltage above the normal rated voltage or the maximum operating voltage of a device or circuit A direct test overvoltage is a voltage above the peak of the line alternating voltage
The voltage over and above the voltage predicted from standard tables of reduction potentials that must be applied before an electrochemical reaction occurs at the expected rate
Incoming electrical power increases significantly above the normal 120 volts; also called power surge 13 13
overvoltage
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