[Home][2015 Index]
Hey---NSTs have PF correcting caps in them already. It sounds like they are not right for correcting for a TC. (No surprise there.) Is there information on this? Is there an easy way to measure PF? Does it sometimes require a lagging correction (inductive)?
Carl On 4/24/2015 7:52 PM, Gary Lau wrote:
Hi, I think either cap series is acceptable - this is a very non-critical application, given the relatively short run-times involved. It's not like it on a rooftop in an air conditioning unit running 24/7. But I think the 25uF value is too low; for a 15/30 NST at 120VAC/60Hz you want something like 120uF. For 240/50 it's less, not sure how much. But again, this is a fuzzy target - there's not a sharp sweet-spot. For line filters, I think most folks just use whatever they find on the surplus market. I put up a web page about how to hook up EMI filters - it may not be obvious in which direction to hook them up! See http://www.laushaus.com/tesla/emifilter.htm Regards, Gary Lau MA, USA On Fri, Apr 24, 2015 at 3:08 PM, Ayush Sharma <ayushsharma3210@xxxxxxxxx> wrote:Hey Thanks to all the people helping out in my previous queries. Here's another question out to all you folks. While searching for a PFC Capacitor for my SGTC (15kV, 30mA) of rating around 25uF, I am confused about whether it is acceptable to use motor run capacitors made by companies like EPCOS listed here ( http://en.tdk.eu/tdk-en/529468/products/product-catalog/film-capacitors/ac-film-capacitors ) or focus on the dedicated Power Factor Correction capacitors made by them listed here ( http://en.tdk.eu/tdk-en/530264/products/product-catalog/components-for-power-factor-correction/phasecap--premium-capacitors ). I am able to procure the AC film capacitors (for motor run) pretty easily in local shops, but am having a hard time locating the other type. Has anybody previously used the EPCOS B323 seris of Motor run capacitors successfully? Also, on a related note, any suggestions as to what kind of a Line Filter should i be looking at (Power supply is 240Volts, 50Hz). Regards Ayush Sharma ᐧ _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla_______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla
_______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla