One Method of Determining Harmonic Problems on Single-Phase Systems Is

question 10

Multiple Choice

One method of determining harmonic problems on single-phase systems is to make two separate current checks. When this is performed, a ratio of average to true-RMS equal to one indicates _____ harmonic distortion.

• A) ​no
• B) ​moderate
• C) ​extreme

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Definitions:

NORM.DIST

A function in statistics that returns the normal distribution for a specified mean and standard deviation.

Standard Error

The standard deviation of the sampling distribution of a statistic, often used to estimate the precision of a sample mean.

Population Standard Deviation

A measure of the dispersion of a set of data values from their mean, calculated for the entire population.

Sample Size

The number of observations or items selected from a population to constitute a sample for the purpose of statistical analysis.