supply of supply and commissioning of vvvf drive.specification:18.5kw ( hd ) / 22kw ( nd ) ac vvvf drive for eot crane etc.supply and commissioning of vvvf drive.specification:18.5kw ( hd ) / 22kw ( nd ) ac vvvf drive for eot crane etc., supply and commissioning of vvvf drive.specification:18.5kw ( hd ) / 22kw ( nd ) ac vvvf drive f or eot crane with built-in braking function & dc reactor & drive software rated voltage / rated frequency: thre e-phase ac power supply: 380 to 480 v ac 50 / 60 hz, max. output voltage ( 3ph ) : 380- 480 v. dc power supply: 510 to 680 v dc. overload tolerance: nd rating: 120% of rated output current for 60s, hd rating:150% of rated output current for 60s. max. output frequency- 590 hz, output frequency resolution- 0.001 hz, protection desi gn- ip20, ambient temperature -10 degree c to + 50 degree c ( without derating ) up to + 60 degree c with derati ng as per annexure a . make: yaskawa ga700 ciprga70d4044abma. or cg or siemens or abb or schneider [ warranty period: 18 months after the date of delivery ]