The current disclosure relates to a power system for feeding power into a vertical transportation arrangement. The power system comprises a first interface for connecting to a primary power source; a second interface for connecting to a secondary power source; and power controlling means for controlling feeding of power from the primary power source and/or the secondary power source to a motor for driving a vertical transportation device. The power system is characterized in that the power controlling means is configured to control feeding at least some of the power used by the motor during normal operation from the secondary power source. The current disclosure also relates to a method and vertical transportation arrangements.
POWER SYSTEM FOR VERTICAL TRANSPORTATION, METHOD AND VERTICAL TRANSPORTATION ARRANGEMENTS
2019-02-28
Patent
Electronic Resource
English
POWER SYSTEM FOR VERTICAL TRANSPORTATION, METHOD AND VERTICAL TRANSPORTATION ARRANGEMENTS
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