| Passenger
Elevator (Traction) If your building has more than G + 5 floors you will probably want to consider an electric traction elevator. Traction elevators are better suited for taller buildings, since they are capable of much greater speeds and heights. Traction elevators are available in a variety of drives such as thyristor controlled drives and variable voltage, variable frequency AC (V3F) drives. |
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| Passenger
(Hydraulic) Hydraulic
elevators are used frequently and have a vast range of applications. Small buildings under
G + 5 floors are typically where hydraulic units are found. Hydraulic units are limited by
the number of floors that they can serve. Often these limitations are not due to the
inability of the equipment, but reflect more on the cost of installation versus the
long-term maintenance costs. Hydraulic elevators, which serve many floors in high traffic
facilities, are not as cost efficient as are traction units, in regard to the units'
performance and maintenance cost. |
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