NRGmaster is a crane electrification system that supplies power to the hoist. It is an alternative to the crane festoon system. NRGmaster is for wire rope hoist cranes located indoors or outdoors-under roof. NRGmaster cannot be used on cranes with chain hoists, in extreme ambient temperature conditions, in high dust areas, outdoors (no roof), or in hazardous locations.
NRGmaster consists of power and control cables that are enclosed in a flexible chain. The chain rests in a guide channel that is fastened to the web of the bridge girder. The free end of the chain bends into a U-shape and connects to the hoist tow arm while the other end fastens to the channel.
Variable frequency drives are standard on trolley and bridge motions for smooth starts and stops. Plug-in cabling* and bolted structural connections simplify assembly. *Plug-in cabling not available for all packages.