WEBVTT 1 00:00:00.453 --> 00:00:02.100 The outer core dimensions can be 2 00:00:02.115 --> 00:00:03.643 right while the steel section is 3 00:00:03.658 --> 00:00:04.117 wrong. 4 00:00:05.004 --> 00:00:07.569 Net steel area equals geometric area 5 00:00:07.584 --> 00:00:09.479 multiplied by stacking factor. 6 00:00:10.363 --> 00:00:11.939 Use the article's example: 7 00:00:12.145 --> 00:00:13.593 a design at one point seven 8 00:00:13.608 --> 00:00:16.115 zero tesla assumes ninety-seven percent. 9 00:00:16.999 --> 00:00:19.085 Build the same geometry at ninety-four 10 00:00:19.100 --> 00:00:20.942 percent, with the same flux. 11 00:00:21.799 --> 00:00:23.420 The steel now operates at about 12 00:00:23.435 --> 00:00:25.197 one point seven five tesla. 13 00:00:26.081 --> 00:00:27.418 This is a calculation, 14 00:00:27.664 --> 00:00:29.240 not a measured loss result. 15 00:00:30.124 --> 00:00:31.301 Burrs, sheet shape, 16 00:00:31.414 --> 00:00:33.646 coating space, debris and loose clamping 17 00:00:33.661 --> 00:00:35.117 can all reduce the factor. 18 00:00:36.002 --> 00:00:37.901 Check the assembled packet height under 19 00:00:37.916 --> 00:00:39.812 the specified clamping condition. 20 00:00:40.696 --> 00:00:42.649 Compare mass with steel density and 21 00:00:42.664 --> 00:00:45.051 geometric volume, excluding ducts. 22 00:00:45.935 --> 00:00:47.777 Measure the steel section you built, 23 00:00:48.036 --> 00:00:49.417 rather than assuming the one you 24 00:00:49.432 --> 00:00:50.104 designed.