Chapter11.1
Electrical Power Systems, Specification, Conditioning, Fault Protection
Introduction
Utility companies’ generation facilities initially distribute well-regulated power to their customers; however, it does not always arrive at the customer’s facility as well-regulated power.
Disturbances on the AC line are very often beyond the utility company’s control. Surge events such as lightning or accidents produce system faults that are beyond the utility company’s reasonable control; however, these events are damaging just the same. In addition, large load changes by customers of the utility can produce power-quality events that are disruptive and damaging in some cases. ...
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