Comparison testing of IEEE Standard 841 motors

The IEEE Standard 841 was developed to identify additional specific features deemed necessary for application of induction motors in the petroleum and chemical industry. The IEEE/IAS Pulp & Paper Industry Committee has also been studying the IEEE Standard 841 for possible adoption by the pulp and paper industry. Members of the PPIC Ad Hoc Committee on IEEE 841 have suggested additional requirements to those in the existing standard. This paper discusses a comparison testing program conducted by the Motor Systems Resource Facility (MSRF), an EPRI/BPA center at Oregon State University, in support of an industrial investigation of the available motors manufactured to the IEEE Standard 841. Seven major motor manufacturers participated in this study. Each manufacturer provided a 50 HP, a 100 HP and a 200 HP "standard" IEEE 841 motor for examination on delivery and IEEE 112 method A efficiency testing. All of the motors were horizontal, 3 phase, 60 hertz, 4-pole, and 460 volts (except one that was 575 volts).