Are energy Efficiency Motors Applicable for Cranes and Hoists ?

Are energy Efficiency Motors Applicable for Cranes and Hoists ?
By Reva Cranes Crane for Projects EOT Cranes Hoists January 16, 2019

In Cranes and Hoists S4 or higher duty motors are recommended, due to intermittent operations.

As per IS 12615 (IS for Energy Efficiency Motors) Energy Efficiency motor can only be given for continuous duty motor ( S1 Duty ) and not applicable for intermittent duty motor i.e. S2, S4.

Please refer to the extract point no. 8 ( Duty & Rating ) of IS 12615 as under :

” 8: DUTY AND RATING The motors shall be rated for duty type S1 (continuous duty) as specified in 4.2.1 of IS/IEC 60034-1 or S3 (intermittent periodic duty) with a rated cyclic duration factor of 80 percent or higher. This standard shall not be applicable to the motors with duty cycles S2, S4 and above. When an equivalent S1 duty is specified by the driven equipment manufacturer and in case equivalent duty (power) lies between two specified power ratings given in Tables 1, 2 and 3, the efficiency value shall be calculated using the formula given in 17.4.”

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A thing well done is a reward in itself… when you begin with this philosophy excellence becomes a way of life, and you achieve more than you aimed for. Exemplifying this  spirit in  all its operation is REVA INDUSTRIES LTD. A company that has been set on a dynamic  track  record  ever since its inception, and has continued to move  from one  milestone  to another.  With  an  extremely  dedicated  team of enterprising engineers and   self-dedicated  workmen  as it’s  main assets.  It  manufactures  DG EOT Cranes,  Electric Wire Rope Hoists, Goliath Cranes, Jib Cranes,  Crane Kits,   Hazard  Area   Cranes & Hoists , Steel Mill Duty Cranes, Electric Winches, Transfer Trolleys, Electric Chain Hoist, Helical Gear Boxes, Geared Couplings, Geared Motors and Customized Material Handling Solutions.
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