http://phk.freebsd.dk/photos/L9007M/dscf0458.jpg.html

That's no true, at least in my country. The industrial consumer is charged for reactive power. We are therefore forced to correct our power factor (cos fi). Antonio CT1TE Quoting "J. Forster" <jfor@quik.com>: > Power companies charge for KVAs, NOT KVARs. > > -John > > ================= > > > >> Take a look at the poor (but commonly low) power factor. >> Much more volt-amps are being delivered than used to do effective work >> as kilowatts. >> >> Power factor correction would be a money saver if saving money were an >> objective. >> >> Stan, W1LE Cape Cod >> >> >> Poul-Henning Kamp wrote: >>> In message <B8DD8AD0-9A4D-4332-83A5-0669685A2671@cq.nu>, Bob Camp >>> writes: >>> >>>> Hi >>>> >>>> I wonder what just the electric bill is to keep a single chain (4 >>>> transmitters) up and running? >>>> >>> >>> http://phk.freebsd.dk/photos/L9007M/dscf0458.jpg.html >>> >>> Looks like 40kW for a dualrated transmitter like Eidí >>> >>> >>> ------------------------------------------------------------------------ >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >> >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > ------------------------------------------------------------------------- A FCUP utiliza o sistema open source de webmail Horde/IMP (www.horde.org) Visite: http://www.fc.up.pt/ http://info.fc.up.pt/

That's more in line with what I've seen... billing for KVA plus a penalty for high KVARs. Interestingly, last seen, the giant wound-rotor synchronous motors at the Bitter National Lab got a rate reduction for overexciting the rotors, so they look like capacitors, rather than inductors. -John ============= > > On 2/14/10 12:54 PM, "J. Forster" <jfor@quik.com> wrote: > >> Power companies charge for KVAs, NOT KVARs. >> >> -John >> >> ================= >> >> >> >>> Take a look at the poor (but commonly low) power factor. >>> Much more volt-amps are being delivered than used to do effective work >>> as kilowatts. >>> >>> Power factor correction would be a money saver if saving money were an >>> objective. >>> > > PF = 0.75 isn't horrible but not great. The apparent power is 33% more > than > the actual power. That's what lots of places with older motors and > conventional fluorescent ballasts probably run. > > The electric company (at least here in southern california) doesn't charge > for KVA or KVAR, per se. What they do is charge for kWhr, plus a penalty > for poor PF, but the penalty isn't proportional to the VARs. It's more of > a > step function, based on the peak reactive load. (measured in some fairly > small time increment) > > > > For instance, on Southern California Edison tariff RTP-3 Large Realtime > pricing > For service delivered and metered at voltages greater than 50kV, > including Cogeneration and Small Power Production Customers, the billing > will be increased by $0.18 per kilovar of maximum reactive > demand imposed on the Company. (you get a 10%+ discount for getting your > power at 50kV and above) > > For service delivered and metered at voltages of 50kV or less, including > Cogeneration and Small Power Production Customers, the billing will be > increased by $0.23 per kilovar of maximum reactive demand imposed on > the Company. > > > >