An overview is given on the specification wording needed to insure that the furnished equipment meets NEMA TP 1 and also is optimized in terms of cost effectiveness for the application. It is shown that savings in total owning cost due to selecting a loss ratio that gives maximum efficiency at 0.7 versus 0.5 PUL are a significant portion of the probable first cost. The vendor should be given sufficient information to allow it to quote the most effective design that is capable of delivering. The use of A and B factors is a straightforward method of communication between vendor and customer.
ASJC Scopus subject areas
- Control and Systems Engineering
- Energy Engineering and Power Technology
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering