PASSENGER ELEVATORS MACHINE-ROOM-LESS SYSTEM
Traction machine Motor drive Control circuit Power consumption / CO2 emissions*3 Motor Perma ne t magnet motor G earl s 2010 2 0 1970 198 0 1 9 0 AC 2 control C V *1 c ontr l A V F c o n t r o l Microcomputer Re lay 3 0 % 37 % 93% 74% 1 0% *2 Wo rm g ea d Induc ti on m t o r Notes: *1: Alternative current, variable voltage *2: Variable voltage ...
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