Visual Materials

One of the Pelton generator units in Powerhouse 2A

Description: One of the Pelton generator units in Powerhouse 2A.
Type: Visual Materials(Opens in new tab)
Date: 7/1/1930
Call number: photCL SCE 02 - 17018
Find out more: View in the Huntington Digital Library(Opens in new tab); View in the Library catalog(Opens in new tab)

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Interior view of Big Creek Powerhouse #2a shows the large Pelton wheels flanking each of the plant's two generating units
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This interior view of Big Creek Powerhouse #2a shows the large Pelton wheels flanking each of the plant's two generating units. Because of the tremendous water pressure caused by the huge static head on these units, two Pelton wheels, one on each side, drive each generator. This reduces stresses on the common shafrt connecting the water wheels and the generator rotor.
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Big Creek Powerhouse 2A - Units #1 & #2, otherwise known respectively as Allis Chalmers, and Pelton Units, in plant 2A, Big Creek.
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Powerhouse 2a - Wye lateral as installed on the Pelton leg of penstock 2A.
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Big Creek Powerhouse 2A - Unit #2, otherwise known as the Pelton Unit, in plant 2A, Big Creek.
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Powerhouse 2a - Rotor for the Pelton unit sitting in place ready to be enclosed with the aluminum cable being wrapped around same for heating.
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Powerhouse 2A - The pelton leg of Penstock 2A, showing wye lateral, large anchor immediately above, and above this large anchor from which the forms have not yet been removed can be seen the forms for the anchor around the temporary elbow.
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