Primary Distribution Voltages in California
Primary Distribution Voltages in California
(OP)
Our company is evaluating the feasibility of supplying some temporary equipment into the California area around Fresno that will reqire a source of electricity at primary (above 750 volt) levels. Can anyone tell me what the predominant primary distribution voltages are in California? For example, 12.5 kV, 13.8 kV, 25 kV, etc. Who would we contact to source the power and provide transformation to the voltage levels we require and at the kVA levels we require?
Thank you, Doug from Canada
Thank you, Doug from Canada






RE: Primary Distribution Voltages in California
http://ora.ca.gov/distribgendocs/PhaseI_ORA%20DG%20OIR_...
for:
23.9 kV, 13.8 kV, and 4.16 kV.
RE: Primary Distribution Voltages in California
The area is likely served by Pacific Gas and Electric—probably 12000Y/6930 or 20780Y/12000.
Their boilerplate is §B in www.pge.com/tariffs/pdf/ER2.pdf
RE: Primary Distribution Voltages in California
RE: Primary Distribution Voltages in California
RE: Primary Distribution Voltages in California
RE: Primary Distribution Voltages in California
Aside — In NorCal a rule of thumb for larger data centers is 600 amperes for feeders, as a load limit for 12 or 21kV distribution circuits. For larger loads, subtransmission or transmission voltage is needed.
RE: Primary Distribution Voltages in California
RE: Primary Distribution Voltages in California
RE: Primary Distribution Voltages in California
RE: Primary Distribution Voltages in California
http://www.rp-l.com/commercialrates.htm
for:
Should the Customer require a non-standard voltage, Customer shall, at his own expense, furnish and maintain all transformers and protective equipment therefore necessary in order to obtain such nonstandard voltage.
RE: Primary Distribution Voltages in California
Review of some links might save a few phone calls…
http://www.pge.com/docs/pdfs/customer_service/new_const...
http://www.pge.com/docs/pdfs/suppliers_purchasing/new_g...
[Clearly, the IPP/QF aspects of this info do not apply.]
Provisions for EUSERC metering in medium-voltage service equipment/metalclad gear may be more complex than in some other areas.
RE: Primary Distribution Voltages in California