Hyatt Pump-Generation Plant

Question 1

Hyatt PP has two intakes to provide a means of controlling:

Answer 1

temperature of the water being released through the power plant.

Question 2

How many shutters do each intake have?

Answer 2

13

Question 3

The shutters can be added or removed to determine:

Answer 3

elevation of water being drawn into the plant.

Question 4

The intake structure also includes two intake gates that are capable of:

Answer 4

being closed under full flow conditions in case of a catastrophic failure in the plant.

Question 5

Hyatt PP contains six units. Which three can be used to for pump-back?

Answer 5

2, 4, 6

Question 6

Full load generation of Hyatt is:

Answer 6

822 MW at 17,000 CFS.

Question 7

Full pump capacity is:

Answer 7

5,610 CFS at a rated had of 592 feet (lake elevation 817 feet)

Question 8

Full pump load at rated head is:

Answer 8

330 MW.

Question 9

Minimum tailrace elevation is _____ feet (minimum submergence). This is due to the turbine centerline being at elevation ___ feet.

Answer 9

220

205

Question 10

The spillway is used to make releases from the lake for:

Answer 10

flood control puposes.

Question 11

The invert elevation of the spillway is:

Answer 11

813.6 feet

Question 12

The spillway has how many gates?

Answer 12

eight

Question 13

The spillway capacity is:

Answer 13

85,000 CFS at 848.5 feet
and
150,000 CFS at 863.5 feet

Question 14

The emergency spillway located to the right of the gated spillway and consists of an Ogee Crested / Broad Crested Weir at elevation:

Answer 14

901 feet

Question 15

The weir is 1730 feet long with a capacity of:

Answer 15

150,000 CFS at 901 feet
and
350,000 CFS at 917 feet