Barcode:
1000695

Description:
Interior of camp kitchen, Mono Basin

Subjects:
Rooms and Spaces

Collection:  Padilla Collection 1908-1935

Barcode:
1000831

Description:
Interior, North Hollywood Pumping Plant

Subjects:
Rooms and Spaces

Collection:  Padilla Collection 1908-1935

Barcode:
1000832

Description:
Interior, North Hollywood Pumping Plant

Subjects:
Rooms and Spaces

Collection:  Padilla Collection 1908-1935

Barcode:
1000871

Description:
Big Pine Power Plant interior

Subjects:
Rooms and Spaces
Electrical Apparatus

Collection:  Padilla Collection 1908-1935

Barcode:
1000880

Description:
Haiwee Power Plant interior

The Haiwee Power Plant will be located beyond Haiwee Reservoir, a distance of 10,260 feet, and be connected with the same by a steel pressure pipe, approximately 10 feet in diameter. The flow of water form the reservoir will be controlled at the power house, thus making the head of water in the reservoir available for power purposes in addition to the natural drop in the Aqueduct grade at this point. The three columns of the data sheet giving maximum net head, minimum net head and average net head show the possible variation in head due to change of water level in the reservoir, and the net head resulting from the probable average elevation of the water in the reservoir during the year.

It will, of course, be necessary to maintain a full and steady flow of water at this plant regardless of power necessities, and the machinery will be arranged to accomplish this automatically, but adapted to hand control or adjustment when desired. The number and size of units shown for the various power plants have not been finally passed on, but are probably correct. The rating shown in each case contemplates a 25 per cent, continuous overload capacity with additional overload capacity for short periods.

The Haiwee power plant, will be approximately 162 miles from the City, measured along the probable route of the transmission lines. This plant will have continuous output during the 24 hours of the day equal to 4,590 kilowatts, or 6,150 horse-power, at the switchboard, and it is one of the plants referred to by the Consulting Board in their Preliminary Report as “steady flow” plants, the other steady flow plants being Cottonwood and Division Creek plants and the San Fernando plant.

Subjects:
Rooms and Spaces
Electrical Apparatus

Collection:  Padilla Collection 1908-1935

Barcode:
1000882

Description:
Haiwee Power Plant interior

The Haiwee Power Plant will be located beyond Haiwee Reservoir, a distance of 10,260 feet, and be connected with the same by a steel pressure pipe, approximately 10 feet in diameter. The flow of water form the reservoir will be controlled at the power house, thus making the head of water in the reservoir available for power purposes in addition to the natural drop in the Aqueduct grade at this point. The three columns of the data sheet giving maximum net head, minimum net head and average net head show the possible variation in head due to change of water level in the reservoir, and the net head resulting from the probable average elevation of the water in the reservoir during the year.

It will, of course, be necessary to maintain a full and steady flow of water at this plant regardless of power necessities, and the machinery will be arranged to accomplish this automatically, but adapted to hand control or adjustment when desired. The number and size of units shown for the various power plants have not been finally passed on, but are probably correct. The rating shown in each case contemplates a 25 per cent, continuous overload capacity with additional overload capacity for short periods.

The Haiwee power plant, will be approximately 162 miles from the City, measured along the probable route of the transmission lines. This plant will have continuous output during the 24 hours of the day equal to 4,590 kilowatts, or 6,150 horse-power, at the switchboard, and it is one of the plants referred to by the Consulting Board in their Preliminary Report as “steady flow” plants, the other steady flow plants being Cottonwood and Division Creek plants and the San Fernando plant.

Subjects:
Rooms and Spaces
Electrical Apparatus

Collection:  Padilla Collection 1908-1935

Barcode:
1000884

Description:
Haiwee Power Plant interior

The Haiwee Power Plant will be located beyond Haiwee Reservoir, a distance of 10,260 feet, and be connected with the same by a steel pressure pipe, approximately 10 feet in diameter. The flow of water form the reservoir will be controlled at the power house, thus making the head of water in the reservoir available for power purposes in addition to the natural drop in the Aqueduct grade at this point. The three columns of the data sheet giving maximum net head, minimum net head and average net head show the possible variation in head due to change of water level in the reservoir, and the net head resulting from the probable average elevation of the water in the reservoir during the year.

It will, of course, be necessary to maintain a full and steady flow of water at this plant regardless of power necessities, and the machinery will be arranged to accomplish this automatically, but adapted to hand control or adjustment when desired. The number and size of units shown for the various power plants have not been finally passed on, but are probably correct. The rating shown in each case contemplates a 25 per cent, continuous overload capacity with additional overload capacity for short periods.

The Haiwee power plant, will be approximately 162 miles from the City, measured along the probable route of the transmission lines. This plant will have continuous output during the 24 hours of the day equal to 4,590 kilowatts, or 6,150 horse-power, at the switchboard, and it is one of the plants referred to by the Consulting Board in their Preliminary Report as “steady flow” plants, the other steady flow plants being Cottonwood and Division Creek plants and the San Fernando plant.

Subjects:
Rooms and Spaces
Electrical Apparatus

Collection:  Padilla Collection 1908-1935

Barcode:
1000889

Description:
San Fernando Power Plant interior

Subjects:
Rooms and Spaces
Electrical Apparatus

Collection:  Padilla Collection 1908-1935

Barcode:
1000897

Description:
Interior, Franklin Power Plant

Subjects:
Rooms and Spaces
Electrical Apparatus

Collection:  Padilla Collection 1908-1935

Barcode:
1000904

Description:
Generator shaft at San Francisquito Power Plant No. 1

This plant is one of the two larger plants, both of which are located in the San Francisquito Canyon between the Fairmont and Dry Canyon power regulating reservoirs. This one is 47 miles from the City.

In order to profit by the head of water in the Fairmont Reservoir, and, at the same time, accomplish a much more convenient and efficient method of control, it is planned to operate 40,617 feet of tunnel under pressure, being that between the Fairmont Reservoir and the head of the penstocks, and to avoid possible water hammer, pressure waves, or sudden changes of head in this pressure tunnel, it is planned further to locate a surge chamber immediately over the end of the tunnel at the head of the penstocks. The final study and design for this chamber is not completed, but it is intended that it shall be of such dimensions and form as to allow of an increased flow of 400 second feet at the power house at any time, regardless of the initial or existing flow within the ultimate 1,000 second foot limit, without experiencing a fall of water level in the surge chamber below the hydraulic grade line, corresponding to the increased flow; that is, such that the water level in the surge chamber will gradually settle down to this steady condition, thus avoiding any oscillations, as well as the possibility of the water level dropping down to the tunnel and admitting air. A complete shutdown at the power house can only cause a gradual rise of the water in the chamber, resulting in some, spilling in extreme cases.

The flow past this plant, and past the San Francisquito No. 2, to be described, will vary from 0 to 1,000 second feet, and on account of the friction in the long pressure tunnel of this particular plant, added to the friction in the penstock the net head will vary from 941 (being the static head with zero flow) to 814 feet to 1,000 second feet flow. The average output at the switchboard will be 22,380 kilowatts, or 30,000 horse-power, and the maximum 51,750 kilowatts, or 69,370 horse-power, and it is proposed to install six units of 7,500 kilowatts rated capacity each, with 25 per cent continuous overload capacity. The installation of any considerable excess generating capacity does not seem to be justifiable, as the plant is but one of several constituting the system, and the various units will be in operation less than half of each day on account of the variable flow feature.

Subjects:
Rooms and Spaces

Collection:  Padilla Collection 1908-1935