SUSTAINABLE ENERGY USE
Mitsubishi Electric's leading-edge technologies have made it possible for elevators to conserve energy. Our Regenerative Converter makes the most of power generated by the traction machine. Additionally, thanks to the Joint-Lapped Motor and energy-saving features, the elevators use energy more wisely and efficiently.
Efficient use of power
Regenerative Converter (Optional)
Elevators usually travel using power from a power supply (powered operation); however, when they travel down with a heavy car load or up with a light car load (regenerative operation), the traction machine functions as a power generator. Although the power generated during traction machine opreation is usually dissipated as heat, the Regenerative Converter transmits the power back to the distribution transformer and feeds into the electrical network in the building along with electricity from the power supply. Compared to the same type of elevator without a Regenerative Converter, this system provides an energy-saving effect of up to 35%. (Reduction in CO2 emissions: 1400 kg/year) In addition, the Regenerative Converter has the effect of decreasing harmonic currents.
Smaller carbon footprint
The joint-lapped core built in the PM motor of the traction machine features flexible joints. The iron core can be like a hinge, which allows coils to be wound around the core more densely, resulting in improved motor efficiency and compactness. High-density magnetic field is produced, enabling lower use of energy and resources and reduced CO2 emissions.
Curbing energy consumption
Mitsubishi Electric offers features that help to reduce the energy consumption of elevators.
- Number of Cars (ESO-N)
The number of service cars is automatically reduced to some extent without affecting passenger waiting time.
- Allocation Control (ESO-W)
Based on each elevator's potential energy consumption, the system selects the elevator that best balances operational efficiency and energy consumption.
Car Light/Fan Shut Off
- Automatic (CLO-A/CFO-A)
The car lighting/ventilation fan is automatically turned off if there are no calls for a specified period.
Source of the image,pdf or pictures are © to Mitsubishi Electric Corporation - 9 July 2013