Bottlehead Forum
General Category => General Discussion => Topic started by: joepiecuch on June 14, 2023, 03:45:38 PM
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we're putting a new pump in the well at my place of employment. there's only single phase service available at the site so appropriately powering a 20HP pump means stepping the 240V service up to 460V, converting it to 3 phase and modulating it with a VFD. no one at the control manufacturer or dealer mentioned to the installer that there needed to be a choke between the converter and the VFD to prevent the generation of erroneous error messages and we got set back a week when the omission became apparent during the installation and one had to be ordered. it arrived today; it's about 10" tall and weighs 30 lbs. it's rated as 2.19MH for 58A at 400V.
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Wow - stick a giant cap on either end of that choke and you could build one helluva big (and quiet) CLC filter for a high voltage amp :) Is there a discount available if you buy more than one at a time ??