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  • Users: gumper00
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  1. gumper00

    Electric Motors with VFD

    Is it common practice to operate a motor above it rated RPM using a VFD? The fan is a direct drive with a 900 RPM motor. The design fan RPM is 1,250 and the vendor wants to operate the motor at 1,250 using the VFD.
  2. gumper00

    Electric Motors with VFD

    Is it common practice to operate a motor above it rated nampeplate RPM using a VFD? The direct drive fan has a 900 RPM motor but the design fan RPM is 1,250 RPM. The vendor is saying you can use the VFD to operate the fan at design RPM.

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