IEEE C57.120-1991 pdf free

04-29-2021 comment

IEEE C57.120-1991 pdf free.IEEE Loss Evaluation Guide for Power Transformers and Reactors.
IEEE C57.120 cost rates, in dollars per kilowatt,for no-load,load, and auxiliary losses,asfound in 6.2.1,6.2.2 and 6.2.3, respectively, are the figures that should be furnished to themanufacturers at the time of soliciting bids.
The manufacturer may utilize the cost rate values to build a transformer that hasamounts of conductor and iron that are economically dictated by the dollar evaluation.That is, the manufacturer may reduce losses, by adding conductor and iron up to anamount where the incremental construction costs of adding conductor and iron equal theincremental value of the transformer.
The rates should be preferably furnished to the manufacturers in the dollars-per-kilo-watt form as discussed above. They may also be given in the levelized annual form ofdollars-per-kilowatt-year, but if they are so given, it will be necessary also to supply themanufacturer with information as to the purchaser’s fixed charge rate,sales tax rate,overheads, etc., and to rely on the manufacturer to make the proper calculations.Use of thedollars-per-kilowatt form will ensure that each manufacturer is using the same basis foroptimizing the design.
In order to compare two or more bids, add the following products to the bid price (for eachseparate bid):
(1) The manufacturer’s guaranteed no-load losses in kilowatts,times the dollars-perkilowatt figure for NLLCR.
(2)The manufacturer’s guaranteed load losses in kilowatts,times the dollars-perkilowatt figure for LLCR.
(3)The manufacturer’s guaranteed losses for each type of auxiliary loss,times the appropriate dollars-per-kilowatt figures for ALCR1,ALCR2,etc.
When all of these are added to the bid price, the lowest resulting figure indicates the “bestbuy,”provided, of course, that the offered transformers are comparable in other respects.if loss evaluation figures are furnished to the manufacturers at the time of solicitingbids, the steps outlined above should be used to select the best offering. A selection basedonly on bid price will not necessarily represent the true value of the offered equipment.IEEE C57.120 pdf download.

Download infomation Go to download
Note: Can you help me share this website on your Facebook or others? Many thanks!
IEEE N42.46-2008 pdf free Free IEEE Standards

IEEE N42.46-2008 pdf free

IEEE N42.46-2008 pdf free.American National Standard for Determination of the Imaging Performance of X-Ray and Gamma-Ray Systems for Cargo and Vehicle Security Screening. IEEE N42.46 is intended to be used to determine the imaging performance of x-ray...
Get More
IEEE P1906.1-D2.0-2014 pdf free Free IEEE Standards

IEEE P1906.1-D2.0-2014 pdf free

IEEE P1906.1-D2.0-2014 pdf free.Draft Recommended Practice for Nanoscale and Molecular Communication Framework. A common framework greatly aids in communicating ideas among researchers from diverse fields and developing useflul simulators for nanoLseale communication. This includes interconnecting systems of...
Get More
IEEE C37.20.3-2001 pdf free Free IEEE Standards

IEEE C37.20.3-2001 pdf free

IEEE C37.20.3-2001 pdf free.IEEE Standard for Metal-Enclosed Interrupter Switchgear. 3.5.2 design tests: Tests made by the manufacturer to determine the adequacy of the design of a particulartype, style, or model of equipment or its component parts to...
Get More


Anonymous netizen Fill in information