List and describe the power quality issues associated with v

List and describe the power quality issues associated with voltage. List and describe the power quality issues associated with frequency. Explain techniques used by power companies to correct power quality. Explain why energy demand is cyclic. Explain why trading power between utility companies is a common occurrence. List and explain the different causes of blackouts.

Solution

1.High Voltage Spikes

High voltage spikes occur when there is a sudden voltage peak of up to 6,000 volts. These spikes are usually the result of nearby lightning strikes, but there can be other causes as well. The effects on vulnerable electronic systems can include loss of data and burned circuit boards.

2. Frequency Variation

A frequency variation involves a change in frequency from the normally stable utility frequency of 50 or 60 Hz, depending on your geographic location. This may be caused by erratic operation of emergency generators or unstable frequency power sources. For sensitive equipment, the results can be data loss, program failure, equipment lock-up or complete shut down.