Round Robin Air Compressors
EMSA has initiated the project ‘Guide to air compressor energy efficiency measurement method and small-scale Round Robin for air compressors”. The available ISO1217 standard (compressor acceptance test) is a general test standard which covers a very wide range of gas compressors. The standard shows some shortfalls, which makes it difficult for test laboratories to provide closely aligned testing results. Compressors might therefore not achieve the ratings given in their data sheets.
One project task is to generate a guide that could allow a competent laboratory, anywhere in the world, to obtain a single efficiency value, which would closely align with that obtained by any other laboratory, using measuring equipment which is readily available and not unduly expensive.
In this EMSA organised international Round Robin, independent testing laboratories in Australia, Denmark, and Germany are involved and funded by EMSA members.
For more details, download project brief.
Round Robin for Variable Speed Drives
EMSA in cooperation with the International Electrotechnical Commission (IEC) launched the project to determine whether the current energy efficiency test methods provide accurate and repeatable results and if the level of reference losses described in these provide a sufficient incentive to encourage greater levels of efficiency. The test method to determine the losses in variable speed drives (and hence their efficiency) is described in the following two IEC standards: IEC 61800-9-2:2017 and IEC 60034-2-3:2020.
In this EMSA organised international Round Robin, independent testing laboratories in Australia, Denmark, Switzerland and the USA were involved and funded by EMSA members.
Key findings:
- Almost all Variable Speed Drives on the market easily reach IE2
- The Round Robin test results show a good match with manufacturers’ catalogue data
- The Uniform Testing Protocol of the Round Robin has proven to be a valuable test method and was taken up into IEC 61800-9-2
Test standards for selected advanced motor technologies
This project & document identifies existing test standards for selected advanced motor technologies and discusses opportunities for potential test procedure harmonisation for each categories of equipment analysed.
