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A 2 km (1.2 mi) long headrace tunnel connects the upper reservoir to the underground power station which houses 4 x 333 megawatts (447,000 hp) reversible Francis pump-turbines. The elevation between the two reservoirs affords a hydraulic head (water drop) of 480 m (1,570 ft).
The Drakensberg Pumped Storage Scheme is an energy storage facility built in the South African provinces of Free State and KwaZulu-Natal starting in 1974 and completed by 1981. [ 2 ] Four dams are involved in the scheme; the Driekloof Dam ( joined to the Sterkfontein Dam ), the Kilburn Dam , the Woodstock Dam and the Driel Barrage.
A bilge pump is a water pump used to remove bilge water. Since fuel can be present in the bilge, electric bilge pumps are designed to not cause sparks. Electric bilge pumps are often fitted with float switches which turn on the pump when the bilge fills to a set level. Since bilge pumps can fail, use of a backup pump is often advised. The ...
An electrical grid may have many types of generators and loads; generators must be controlled to maintain stable operation of the system. In an electric power system, automatic generation control (AGC) is a system for adjusting the power output of multiple generators at different power plants, in response to changes in the load. Since a power ...
The Palmiet Pumped Storage Scheme consists of two 200 megawatts (270,000 hp) turbine units located 2 kilometres (1.2 mi) upstream of the Kogelberg Dam on the Palmiet River near Cape Town, South Africa. [2] The pumped-storage hydroelectricity plant is capable of responding to a surge in peak power demand in minutes. [3]
The EuroPowerPack is the combination of the MTU MT883 Ka-500/501 diesel engine delivering over 1100 kW (1500 PS) shaft power with the ten-speed (five forward, five reverse) Renk HSWL 295TM automatic transmission for the use in heavy tracked vehicles like tanks.
Bilge water is a nearly-unavoidable byproduct of shipboard operations. Oil leaks from running machinery such as diesel generators, air compressors, and the main propulsion engine. Modern OWSs have alarms and automatic closure devices which are activated when the oil storage content of the waste water exceeds a certain limit(15ppm : 15 cm3 of ...
A pump as turbine (PAT), also known as a pump in reverse, is an unconventional type of reaction water turbine, which behaves in a similar manner to that of a Francis turbine. The function of a PAT is comparable to that of any turbine , to convert kinetic and pressure energy of the fluid into mechanical energy of the runner.
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