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Liht Hoist Starting

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#1 houssam


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Posted 30 December 2010 - 05:14 AM

At sites, we use double cage external lift hoist, single and double speed, with countre weight and without CW.
The starting DOL current for sigle cabin hoit is 163 A ( three motors on a rack. each is 11 KW).
We use a generator 250 KVA ( 200 KW ).
The question is : How to minimize this starting current. so we can use a generator with less capacity.
Lift Hoist brand is GJJ - China.
Do a ciecuit Star - Delta with 2 sec switiching wll be enough?
or Do an inverter will be good regardless of the cost?

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