Where water power is available, turbines of a variety of types are in use.
deep, the turbines being coupled by long shafts with 5000 H.P. alternating, current dynamos on the surface.
Though no radical changes have been made in the design of turbines for some years, an immense amount of skill and ingenuity has been shown in perfecting and improving details, and such machines of great size and power are now constantly being made, and give every satisfaction when in use.
Probably the most important application of turbines to the generation of power on a great scale is that at Niagara Falls.
In this scheme large turbines were placed at the bottom of hydraulic fall tubes 150 ft.