Pacific service magazine . ctric generatingmachinery in process. Transmission facilities completed by the construction of a line into Pit Three fromjunction with Pit One line at Haynes Meadow, on the highway near the foot of Burneymountain. The salient features of this hydro-electric project which, when completed, will add107,000 horsepower in installed capacity to our companys Pit River system, have beendiscussed at length in previous issues of Pacific Service Magazine. There is, however,one feature of the construction work that has not, perhaps, received an amount of atten-tion proportionate Stock Photo
RM2AN5FDD–Pacific service magazine . ctric generatingmachinery in process. Transmission facilities completed by the construction of a line into Pit Three fromjunction with Pit One line at Haynes Meadow, on the highway near the foot of Burneymountain. The salient features of this hydro-electric project which, when completed, will add107,000 horsepower in installed capacity to our companys Pit River system, have beendiscussed at length in previous issues of Pacific Service Magazine. There is, however,one feature of the construction work that has not, perhaps, received an amount of atten-tion proportionate
Pacific service magazine . Industrial substation tapping the 60,000volt line from South tower to Antioch.(Columbia Steel Company, Pittsburg.) The Sacramento River crossing on the Vaca-Dixon-Antioch line. The middle tower is on Sherman Island, 459 feet in height. crease in business which must follow. There are distribution substations locatedalong and at the end of each of these locallines. While these are smaller and simplerthan the transmission substations, they arenone the less important in the transportation system, since their failure properly tofunction wouldjeopardize theservice in the t Stock Photo
RM2AM8BC6–Pacific service magazine . Industrial substation tapping the 60,000volt line from South tower to Antioch.(Columbia Steel Company, Pittsburg.) The Sacramento River crossing on the Vaca-Dixon-Antioch line. The middle tower is on Sherman Island, 459 feet in height. crease in business which must follow. There are distribution substations locatedalong and at the end of each of these locallines. While these are smaller and simplerthan the transmission substations, they arenone the less important in the transportation system, since their failure properly tofunction wouldjeopardize theservice in the t
Pacific service magazine . a con-tract had been completed between thePacific Gas and Electric, Northern Cali-fornia and California-Oregon power com-panies whereby through interconnectionof transmission systems Pacific Servicewould shortly have some sixty millionkilowatt-hours a year to add to its elec-trical distributing system. The particulars of this contract, inbrief, were that power to the amount ofsome 8000 kilowatts would be taken fromthe California-Oregon Power CompanysCopco plant in the mountains of SiskiyouCounty, near the Oregon line. At thattime the California-Oregons transmissionli Stock Photo
RM2AJBY44–Pacific service magazine . a con-tract had been completed between thePacific Gas and Electric, Northern Cali-fornia and California-Oregon power com-panies whereby through interconnectionof transmission systems Pacific Servicewould shortly have some sixty millionkilowatt-hours a year to add to its elec-trical distributing system. The particulars of this contract, inbrief, were that power to the amount ofsome 8000 kilowatts would be taken fromthe California-Oregon Power CompanysCopco plant in the mountains of SiskiyouCounty, near the Oregon line. At thattime the California-Oregons transmissionli
Pacific service magazine . Contra Costa Substation, southern terminus of the 220,000-volt transmission line from Vaca-Dixon.. Views of the 220,000-volt Pit River Transmission system. Upper left, Pit River No. One powerhouse, installed capacity 93,834 horsepower; upper right, single circuit tower with suspension in-sulators; center left, double circuit tower; center, interconnected network of transmission linesof all voltages, and topography of California; center right, Pit River No. Three power house,installed capacity 108,580 horsepower; lower left, single circuit angle tower, with dead end i Stock Photo
RM2AN1ARM–Pacific service magazine . Contra Costa Substation, southern terminus of the 220,000-volt transmission line from Vaca-Dixon.. Views of the 220,000-volt Pit River Transmission system. Upper left, Pit River No. One powerhouse, installed capacity 93,834 horsepower; upper right, single circuit tower with suspension in-sulators; center left, double circuit tower; center, interconnected network of transmission linesof all voltages, and topography of California; center right, Pit River No. Three power house,installed capacity 108,580 horsepower; lower left, single circuit angle tower, with dead end i
Pacific service magazine . Typical section of the Pit One—Vaca-Dixon 220,000-volt transmission line crossing the Sacramento valley 22 Pacific Service Magazine. Section of the Pit river—Vaca-Dixon line, showing type of towersused in the snow region this appeared to be the most convenient lo-cation with respect to the existing lines.From this point, called by the company Va-ca-Dixon substation on account of the splen-did co-operation received from the citizensof Vacaville and Dixon located nearby, it isapproximately 200 miles to the Pit RiverNo. 1 plant, which is located a few milesfrom Fall Riv Stock Photo
RM2AN6F5J–Pacific service magazine . Typical section of the Pit One—Vaca-Dixon 220,000-volt transmission line crossing the Sacramento valley 22 Pacific Service Magazine. Section of the Pit river—Vaca-Dixon line, showing type of towersused in the snow region this appeared to be the most convenient lo-cation with respect to the existing lines.From this point, called by the company Va-ca-Dixon substation on account of the splen-did co-operation received from the citizensof Vacaville and Dixon located nearby, it isapproximately 200 miles to the Pit RiverNo. 1 plant, which is located a few milesfrom Fall Riv
Pacific service magazine . Two 20,000 k. V. a. synchronous condensers installed atDixon substation Vaca-. South Tower, on the Contra Costa side of Carquinez straits, where the Vaca-Dixon Claremont 110,000-volt transmission line crosses San Francisco bay From Vaca-Dixon a certain portion ofthe power was fed into the P. G. & E. sys-tem in the Sacramento valley, but thegreater portion was of course required inthe bay region. It was decided that a vol-tage of 110,000 would be economically suit-able for transmission of the power fromVaca-Dixon to Claremont, which wasmarked as the distribution point Stock Photo
RM2AN6D2T–Pacific service magazine . Two 20,000 k. V. a. synchronous condensers installed atDixon substation Vaca-. South Tower, on the Contra Costa side of Carquinez straits, where the Vaca-Dixon Claremont 110,000-volt transmission line crosses San Francisco bay From Vaca-Dixon a certain portion ofthe power was fed into the P. G. & E. sys-tem in the Sacramento valley, but thegreater portion was of course required inthe bay region. It was decided that a vol-tage of 110,000 would be economically suit-able for transmission of the power fromVaca-Dixon to Claremont, which wasmarked as the distribution point
Pacific service magazine . constructed. Allof this must be accomplished piece-meal,building into the existing network, withoutdisturbing its balance or interfering with itssuccessful operation. Not only must theoutput of the present plants be economicallyand elfectively handled, but considerationmust be given in advance to the disposal ofthe power from such future plants as arescheduled for construction at later dates. Itis frequently found economical, for instance,to construct a transmission line with re-serve capacity to care for projected plants.Without careful planning, step by step,with t Stock Photo
RM2AM8CH1–Pacific service magazine . constructed. Allof this must be accomplished piece-meal,building into the existing network, withoutdisturbing its balance or interfering with itssuccessful operation. Not only must theoutput of the present plants be economicallyand elfectively handled, but considerationmust be given in advance to the disposal ofthe power from such future plants as arescheduled for construction at later dates. Itis frequently found economical, for instance,to construct a transmission line with re-serve capacity to care for projected plants.Without careful planning, step by step,with t
Pacific service magazine . imately2000 ft. away. The SanJoaquin River is crossedby using three high towersbetween the two anchorstructures, the middletower being located on anisland in the river. As thespans are shorter (3175ft. and 2250 ft. respective-ly) these towers are 269ft., 359 ft., and 314 ft.,in height. The 459-foottower on the south bank of the SacramentoRiver is believed to be the highest struc-ture used for supporting a transmission line.Before starting final designs on the longspans crossing the San Joaquin and Sacra-mento Rivers preliminary studies weremade of various schemes in Stock Photo
RM2AN1C97–Pacific service magazine . imately2000 ft. away. The SanJoaquin River is crossedby using three high towersbetween the two anchorstructures, the middletower being located on anisland in the river. As thespans are shorter (3175ft. and 2250 ft. respective-ly) these towers are 269ft., 359 ft., and 314 ft.,in height. The 459-foottower on the south bank of the SacramentoRiver is believed to be the highest struc-ture used for supporting a transmission line.Before starting final designs on the longspans crossing the San Joaquin and Sacra-mento Rivers preliminary studies weremade of various schemes in
Pacific service magazine . anuary will recall time without disturbing the present equip-a description of the new transmission line ment. from Vaca-Dixon Substation to Antioch, The equipment now installed in the with particular reference to the high towers building consists of one 15,000 K. V. A.being constructed where the lines cross synchronous condenser, whose purpose isthe Sacramento and San Joaquin Rivers. to stabilize the voltage and afford power The new substation is the southern ter- factor correction, and the main switchboardminus of this lineand will serve avery importantpurpose by af Stock Photo
RM2AN2C26–Pacific service magazine . anuary will recall time without disturbing the present equip-a description of the new transmission line ment. from Vaca-Dixon Substation to Antioch, The equipment now installed in the with particular reference to the high towers building consists of one 15,000 K. V. A.being constructed where the lines cross synchronous condenser, whose purpose isthe Sacramento and San Joaquin Rivers. to stabilize the voltage and afford power The new substation is the southern ter- factor correction, and the main switchboardminus of this lineand will serve avery importantpurpose by af
Pacific service magazine . ich is 4427 ft. The cable at Carquinez is of very highstrength steel and can be pulled to a greatertension than that used at the new crossing.The effect of this greater tension in permit-ting lower crossing towers with a higherclearance (206 ft. instead of 130 ft.) abovewater surface can be noted. However, sucha cable would not have the conductivity or ^-^ M K 1 i s 1 Pi «r .^t w 1 Transmission line from Contra Costa Substation lookingtoward Sherman Island. the resistance to weathering, corrosion, etc. It will further be noted that the topo-graphical features of the Stock Photo
RM2AN1B2G–Pacific service magazine . ich is 4427 ft. The cable at Carquinez is of very highstrength steel and can be pulled to a greatertension than that used at the new crossing.The effect of this greater tension in permit-ting lower crossing towers with a higherclearance (206 ft. instead of 130 ft.) abovewater surface can be noted. However, sucha cable would not have the conductivity or ^-^ M K 1 i s 1 Pi «r .^t w 1 Transmission line from Contra Costa Substation lookingtoward Sherman Island. the resistance to weathering, corrosion, etc. It will further be noted that the topo-graphical features of the
Pacific service magazine . gs themselves. The lower conductors will be supported50 feet above the tops of foundations on theanchor towers, which, to give the required25 feet clearance between wires will be atotal of 100 feet in height. The five suspen-sion towers, in order to hold the lowercables at the required distance above thewater and allow for the conductor clear-ances, will have total heights of 269, 314,359, 410 and 459 feet above their founda-tions. It is believed that the highest of thesewill set a new record for height of towersused in a transmission line. However, thisis only incid Stock Photo
RM2AN30P7–Pacific service magazine . gs themselves. The lower conductors will be supported50 feet above the tops of foundations on theanchor towers, which, to give the required25 feet clearance between wires will be atotal of 100 feet in height. The five suspen-sion towers, in order to hold the lowercables at the required distance above thewater and allow for the conductor clear-ances, will have total heights of 269, 314,359, 410 and 459 feet above their founda-tions. It is believed that the highest of thesewill set a new record for height of towersused in a transmission line. However, thisis only incid