29 May
2007
29 May
'07
7:38 p.m.
Thomas Harold wrote:
Actually, I think there's a technical reason why they don't say 1500W instead of 1500VA. A
Computers are not a passive load in the way that a heating element would be, they tend to have a very capacitive load characteristic. As a result, the voltage cycle and current cycle will be out of phase. This means that, while the voltage x amperage is equal to approx 1500W, there will not be 1500 watts of power delivered.
P=VxA only holds true if they are in phase and so using VA is correct.
--
Chris Mason
(264) 497-5670 Fax: (264) 497-8463
Int: (305) 704-7249 Fax: (815)301-9759 UK 44.207.183.0271
Cell: 264-235-5670
Yahoo IM: netconcepts_anguilla@yahoo.com
--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.