Large DC Shunt Motors and DC Drives from Baldor Australia

• Hoist and crane where motor peak capacities exceed 200% for several seconds, and ideally suited for line regenerative Dc motor drive systems
• Web tension applications requiring large amounts of power available from small frame TEBC DC motors
• Winder and rewinder applications where high reversals and high standstill torques required
• Downhill conveyors - well suited for DC's regenerating capabilities
• Dyno test stands where high overloads and peak torques have been traditional applications for DC motor drive systems.

Large DC Shunt Motors

• 4 pole ‘straight shunt wound’ design with separate field excitation on frames up to B200
• 4 pole ‘stabilised shunt wound’ design with separate field excitation on frames B225 and above
• IP23 enclosure standard
• High quality steel frame, annealed for optimum magnetic properties
• Heavy duty steel feet welded to the frame for maximum structural integrity under adverse conditions
• Large removable brush inspection covers allow easy access to the commutator and brush equipment
• High dielectric stability, with low moment of inertia for armature for fast response
• Rated for continuous duty
• Class H insulation system with 200°C materials throughout
• Riser connections are TIG welded for minimum resistance and maximum strength

DC Digital Control

• Models for 3.7kW to 450kW motor capacity
• Harmonized componentry and operation routines with ac Flux Vector/Inverter Drives
• Three phase, full wave, four quadrant SCR armature control
• Fully controlled 6 pulse
• Automatic tuning to motor with manual override
• Motor shaft orient to encoder marker or external switch closure
• Feedback type: standard armature or incremental encoder coupled 1:1 to motor shaft
• Voltage output: 2 channel in quadrature, 5Vdc differential
• Adjustable current limit, motor overload and over-current, over-temperature (motor and control), armature over-voltage protection features

DC motors available in the following frames: Totally Enclosed Fan Cooled, Totally Enclosed Non Ventilated, Totally Enclosed Air Over, Drip Proof Fully Guarded and Drip Proof Blower Ventilated