http://www.lmpforum.com/forum/blogs/ Community Blog List Syndication Sun, 01 Jan 2012 08:43:05 +0000 forum08@lmpforum.com (LMPForum) IP.Blog 60 http://www.lmpforum.com/forum/blog/1/entry-10-emc-testing-with-vfds/ USA and Asian countries do not have this requirement.

The tests are prescribed as a requirement for CE compliance (Europe) and CTick compliance (Australia and New Zealand).

The laboratory tests require two types of emissions be tested, 1) radiated emissions...]]> Sun, 01 Jan 2012 06:02:00 +0000 http://www.lmpforum.com/forum/blog/1/entry-10-emc-testing-with-vfds/ http://www.lmpforum.com/forum/blog/11/entry-5-motor-kilowatts/
Can someone please explain to me is a 3 phase motor running off a VSD at half speed (25hz) still able to produce its rated nameplate kilowatts?



]]> Wed, 05 Aug 2009 08:20:19 +0000 http://www.lmpforum.com/forum/blog/11/entry-5-motor-kilowatts/ http://www.lmpforum.com/forum/blog/10/entry-4-split-phase/ I have a pump which is 480V single phase (Split Phase). I have been asked to change the starter on this pump. At present there is a manual starter on the wall. You put it in start and when the motor is up to speed you switch it to run. There is a big capacitor box connected separately. Does anyone know of any starters available for this system with...]]> Mon, 20 Jul 2009 08:53:44 +0000 http://www.lmpforum.com/forum/blog/10/entry-4-split-phase/ http://www.lmpforum.com/forum/blog/1/entry-3-energy-saving-scams-and-mis-representations/
In order to reduce energy consumption, there must first be energy wasted, and second, a means of reducing that energy wastage.
You can only save a portion of the energy that is being...]]> Sun, 09 Sep 2007 00:58:16 +0000 http://www.lmpforum.com/forum/blog/1/entry-3-energy-saving-scams-and-mis-representations/ http://www.lmpforum.com/forum/blog/7/entry-2-induction-motor-generation/
At the motor terminals there are capacitors connected across the phases and an adjustable 3 phase load bank.

The...]]> Tue, 28 Aug 2007 06:09:23 +0000 http://www.lmpforum.com/forum/blog/7/entry-2-induction-motor-generation/ http://www.lmpforum.com/forum/blog/1/entry-1-i-hate-spam/
The origin of the word is unclear, with some suggestion that it cam from a Monty Pythons sketch.

I can get upwards of 400 SPAM emails a day and it can be an issue trolling through all that garbage. - I don't and I know that I do miss some legitimate...]]> Wed, 03 May 2006 22:39:14 +0000 http://www.lmpforum.com/forum/blog/1/entry-1-i-hate-spam/