5 Questions
Why is the flexible steel belt with GeN2 Technology preferred over conventional steel ropes?
It requires a smaller machine with a smaller sheave diameter.
What impact does the compact gearless machine have on the overall size of the elevator system compared to conventional machines?
It results in the machine being up to 70% smaller.
What distinguishes the machine roomless system from the conventional machine room system in terms of bearing loads?
In the machine roomless system, bearing loads are transferred to the pit, reducing building costs.
How does the Flexibility of the steel belt impact its bending radius in comparison to conventional steel ropes?
The steel belt can handle a much smaller bending radius than conventional ropes.
What feature of the GeN2 gearless machine makes it possible not to require a large machine room?
Its lightweight design and small sheave diameter
Study Notes
Otis GeN2 Comfort System
- The GeN2 system is a highly efficient machine that is up to 50% more efficient than conventional geared machines and 10% more efficient than conventional gearless machines with induction asynchronous motors.
Key Features
- The system uses a flat belt and a smooth crowned sheave, which provides a more compact machine.
- The gearless machine has sealed-for-life bearings, which eliminates the need for polluting lubricants.
- The system is equipped with a highly efficient PM synchronous motor of radial construction, which is 15% more efficient than other machines with PM motors of axial construction design.
Environmental Benefits
- The lubrication-free and energy-efficient system reduces operating costs and increases system reliability.
- The system consumes less energy, with substantial energy cost savings when compared with conventional machines.
- The reduction of power installed reduces operational cost, and the lower starting and nominal currents reduce the feeder size lines and installation costs.
Reliability and Safety
- The long-lasting coated steel belt, smooth crowned sheaves, and reduction of moving parts in the gearless machine increase durability and reliability.
- The Otis PULSE electronic system monitors the status of the belt's steel cords 24/7, detecting and informing technicians on the quality of the belt cords, eliminating downtime and enhancing reliability.
- The system includes safety features such as a door deterrent device, which prevents the car door from opening if the car is stopped between floors.
Test your knowledge on Otis' elevator systems, including the Industry hydraulic system, Industry geared system, and GeN2 Comfort system. Explore the interaction between Otis' flat belt and smooth crowned sheave, and the efficiency of their gearless machines with sealed-for-life bearings.
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