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  1. LENELEC

    Overspeed testing of HV DFIG generator using LV VFD and transformer

    Hi all, I did think about running from the rotor (600v for reference) but I was not sure if our drive would find it agreeable. Unfortunately I wouldn't get time to do a dry run before the big show. Ill see if we have another machine in the workshop I can use. Certainly the most simple option...
  2. LENELEC

    Overspeed testing of HV DFIG generator using LV VFD and transformer

    Hi all, Long time lurker, first time poster. I work for a motor/generator overhaul facility in Australia. As part of a refit on a ~2.5MW DFIG machine we are required to do a 150% overspeed test. This test only needs to be conducted once and only for 90 seconds. To do this we would be...

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