- Title : Plant Engineers & Managers Guide 18 by Albert Thumann, P.E., C.E.M.
- Publish : Marcel Dekker, Inc New York and Basel
- Type Document : pdf
- Release : December 2002
- Total Page : 14 page
- Size : 0.32 Mb
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Decrypted Contents
Economic Evaluations for Power Quality Solutions
SUMMARY
Power quality issues are continuing to become a greater concern, particularly to sensitive customers with critical operations. Measures can be taken to improve the power quality of a given circuit, however the economic feasibility if the applications should be considered. As a result, the system compatibility must be examined to determine the behavior of a customer’s equipment within the electrical environment. A power quality investigation and an economic analysis can then determine what mitigation tactics are most effective and whether they should be applied.
With the increased interest and awareness in power quality, there is a vast increase in the number of mitigation devices now available. Many of these devices are expensive; therefore, making a decision to apply mitigating devices is not an easy one. A system and process study must be done to ascertain the level of susceptibility a plant’s equipment has. Once the operation has been characterized, the most appropriate mitigation device(s) can be determined. A cost analysis must then be done to determine the cost of interruptions associated with power quality problems, and the number of interruptions that will be prevented. These savings are compared to the cost of the mitigation device. The intent of this chapter is to illustrate a variety of techniques used to evaluate power conditioning devices. An analysis of the cost due
to power quality interruptions is presented. The effectiveness of the mitigation device is examined in determining an appropriate cost. Mitigation strategies to alleviate the most problems at the lowest cost are discussed
SUMMARY
Power quality issues are continuing to become a greater concern, particularly to sensitive customers with critical operations. Measures can be taken to improve the power quality of a given circuit, however the economic feasibility if the applications should be considered. As a result, the system compatibility must be examined to determine the behavior of a customer’s equipment within the electrical environment. A power quality investigation and an economic analysis can then determine what mitigation tactics are most effective and whether they should be applied.
With the increased interest and awareness in power quality, there is a vast increase in the number of mitigation devices now available. Many of these devices are expensive; therefore, making a decision to apply mitigating devices is not an easy one. A system and process study must be done to ascertain the level of susceptibility a plant’s equipment has. Once the operation has been characterized, the most appropriate mitigation device(s) can be determined. A cost analysis must then be done to determine the cost of interruptions associated with power quality problems, and the number of interruptions that will be prevented. These savings are compared to the cost of the mitigation device. The intent of this chapter is to illustrate a variety of techniques used to evaluate power conditioning devices. An analysis of the cost due
to power quality interruptions is presented. The effectiveness of the mitigation device is examined in determining an appropriate cost. Mitigation strategies to alleviate the most problems at the lowest cost are discussed
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