Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+thyristor\s+controlled\s+soft\s+start\?\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+thyristor\s+controlled\s+soft\s+start\?\s*$/: 7 ]

Total 7 documents matching your query.

1. [Amps] thyristor controlled soft start? (score: 1): Author: "Andy GD0TEP" <andy@gd0tep.com>; Date: Thu, 20 Mar 2008 15:47:25 -0500; Hi group, I'm thinking about using thyristor controlled softstart on my amplifier PSU transformer for my next project, is there anything I should be concerned about using this type of softstart? On a; /archives//html/Amps/2008-03/msg00188.html (7,525 bytes)
2. Re: [Amps] thyristor controlled soft start? (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Fri, 21 Mar 2008 10:29:56 -0700 (PDT); Hi Andy, Are you thinking about just replacing the relay across the resistor with a Triac? Or something more involved like a phase controlled ramp?? A Triac will exhibit a considerable loss during no; /archives//html/Amps/2008-03/msg00191.html (8,788 bytes)
3. Re: [Amps] thyristor controlled soft start? (score: 1): Author: jeff@wa1hco.net; Date: Fri, 21 Mar 2008 10:36:16 -0700 (PDT); Out of curiosity, how does a zero crossing solid state relay work? I had thought it had a triac inside, but your comment about voltage drop makes me question that assumption. jeff, wa1hco ___________; /archives//html/Amps/2008-03/msg00192.html (8,089 bytes)
4. Re: [Amps] thyristor controlled soft start? (score: 1): Author: Manfred Mornhinweg <mmornhin@gmx.net>; Date: Sun, 23 Mar 2008 14:02:23 +0000; Hi Andy, Marv, That loss might be between 1 and 2%, depending on what line voltage is used (worse for 110V than for 220V, of course). Depending on the situation, that might be acceptable, or not. Exa; /archives//html/Amps/2008-03/msg00219.html (9,538 bytes)
5. Re: [Amps] thyristor controlled soft start? (score: 1): Author: Steve Thompson <g8gsq@eltac.co.uk>; Date: Sun, 23 Mar 2008 16:56:17 +0000; A comment, in case it's not self evident - a zero crossing switch won't give you a soft start function. It turns on at (almost) zero voltas and stays on until the current falls to zero. To use a tri; /archives//html/Amps/2008-03/msg00223.html (7,510 bytes)
6. Re: [Amps] thyristor controlled soft start? (score: 1): Author: JMLTINC@aol.com; Date: Sun, 23 Mar 2008 18:22:06 EDT; Thyristors, (both SCR's and Triacs are thyristors) are notoriously noisy and suffer from a poor power factor. Triacs are SCR's back-to-back, and so conduct AC in one package, where an SCR is more lik; /archives//html/Amps/2008-03/msg00229.html (8,653 bytes)
7. Re: [Amps] thyristor controlled soft start? (score: 1): Author: "Peter Voelpel" <df3kv@t-online.de>; Date: Mon, 24 Mar 2008 01:11:33 +0100; Zero crossing SSRs are no good idea, better to switch on the peak voltage. Far better is controlled switching, Circuit diagram: http://www.emeko.de/uploads/media/01-block-schem-us_tsr02-e_01.PDF expl; /archives//html/Amps/2008-03/msg00231.html (9,162 bytes)

Current List: 1 - 7
Page: [1]