Rescue Systems for Rope Elevators

M Spitzer

Monday 1st November 1993

It is a nightmare for every elevator user to remain imprisoned in an elevator car. The most frequent reason for such an event is a power failure. The biggest advantage of a hydraulic elevator is the possibility of an easy rescue operation by using a simple battery operated auxiliary-valve in order to bring the lift to the nearest down floor. Recently it has also become possible to install such a system in a rope lift. In case of a power failure, a self triggering system will energize the main motor using a battery. By means of a special electronic equipment, the battery energy is transformed into the alternating current which is necessary to run the motor. The door motor can be operated by the same energy source, which will give the passengers the possibility of leaving the car when it reaches the landing.

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