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How do you convert motor inertia into pu for PSS/e?

asked 2023-02-28 11:33:08 -0500

LSilv gravatar image

PSS/e dynamic models require parameters to be in per unit. What's the formula to convert a motor's kgm2 inertia into per unit? Is it H = (0.5 * kgm2 * (motor RPM converted into rad/sec)^2)/motor MVA?

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answered 2023-03-02 11:41:50 -0500

LSilv gravatar image

Right. Thanks.

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answered 2023-03-01 08:16:17 -0500

perolofl gravatar image

updated 2023-03-01 08:19:45 -0500

It should be VA instead of MVA for the motor rating.

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Asked: 2023-02-28 11:33:08 -0500

Seen: 408 times

Last updated: Mar 02 '23