The idea is to have NEW installations done with three phase. To upgrade an old
is more expensive than it's worth unless you are building that 50 kW station or
installing a major size air-conditioner (A 3-p air-conditioner is more
efficient than a single phase so you may get economy there)
Unfortunately, the utility companies all consider 3-p to be commercial and will
charge a higher rate. Anybe something for the politicians, then they can talk
about it for another 50 years. :-)
Hans - N2JFS
-----Original Message-----
From: Jim Brown <jim@audiosystemsgroup.com>
To: towertalk@contesting.com <towertalk@contesting.com>
Sent: Tue, Aug 3, 2010 4:45 am
Subject: Re: [TowerTalk] Power Distribution
On Mon, 02 Aug 2010 16:26:20 -0400, Joe Subich, W4TV wrote:
>I'd like to have 3-phase power for any linear DC supply. The higher
>ripple frequency and tighter regulation are significant advantages
>while the distribution is no more difficult than traditional 120/240
>(e.g. 3 hots plus safety ground).
I don't understand the economics of converting a residential service
to 3-phase power (LOTS of money to a licensed electrician, plus
building permit) versus a few extra bucks for a power supply in my
ham rig. And I've got to build that power supply, I can't buy it. At
a 50kW broadcast transmitter site, no argument.
73, Jim K9YC
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