【Daily Topic】【Electrical Edition 20160728】
Thread Content
Participation reward: 2 Wealth. Reward for correct answer: 9 Wealth. Question: What is voltage fluctuation?
Voltage fluctuation is a phenomenon in which the root mean square value of voltage undergoes a series of relatively rapid changes or continuous variations, with a variation period that is longer than the power frequency cycle.
Voltage fluctuation refers to rapid changes in the effective value (root mean square value) of the grid voltage.
Voltage fluctuation refers to the rapid changes in the effective value (root mean square value) of the grid voltage
The phenomenon of the voltage changing rapidly and deviating from its rated value over a certain period of time
Voltage fluctuation refers to rapid changes in the effective value (root mean square value) of the grid voltage. The phenomenon of relatively rapid variations or continuous changes in the root mean square value of voltage
The phenomenon of the voltage changing rapidly and deviating from its rated value over a certain period of time
Voltage fluctuation refers to the phenomenon of relatively rapid changes or continuous variations in the root mean square value of voltage, with a variation period that is longer than the power frequency cycle
The difference between the actual voltage value and the rated voltage value in a power system is referred to as voltage fluctuation
Voltage fluctuation refers to rapid changes in the effective value of grid voltage.
Voltage fluctuation refers to rapid changes in the effective value (root mean square value) of the grid voltage. The voltage fluctuation value is expressed as a percentage of the grid’s rated voltage, based on the difference between the root mean square values of the maximum and minimum voltages at the user’s common power supply point over time ； The frequency of voltage fluctuations is expressed as the number of voltage fluctuations (variations) per unit of time.