4160 Volt VFD Underground Motor Controller

• Liquid Cooled Components
  
• Active Front End - No Transformer
  
• 3300 - 6900 VAC
  
• 700 - 2500 HP
• Skid-Mounted Continuous Weld Design
  
• Input and Output Couplers Standard
  
• Rubber Tire Option
  
• Voltages from 3300 to 6900 AC
  
• Horsepowers from 750 to 2500
  
• Regenerative Applications Standard
  
• Constant Torque Duty - 150% Overload Standard
  
• Custom Design Allows for 250% Overload
  

PowerFlex 7000 Kit
Rockwell Automation PowerFlex 7000 Liquid-Cooled Direct-to-Drive kit packaged for Underground Use

• Active Front End (AFE) is Regenerative - Standard
  
• AFE means no Integral Transformer Required
  
• Direct-to-Drive (D2D) means 4160 vac In and 4160 vac Out to Motor
  
• Liquid Cooled Components Stay Cooler and Cleaner = Longer Life
  
• Reduces Harmonics on Electrical Systems

• Closed-Loop De-Ionizing Liquid Cooling
  
• Integral Flat Plate Heat Exchanger Keeps Closed-Loop System Clean and Contained
  
• Flange Fittings for Mine Cooling Water Input and Hot Water Return
  
• Redundant Pumps for Ease of Maintenance
  
• Controls Monitor Temperature, Pressure, and Conductivity of Cooling Liquid

• Face Conveyor and Stageloader Applications
  
• Torque and Speed Control
  
• Enhanced Overload Capacity
  
  Allows Face Conveyor to Operate at Reduced Speeds:
  
• Minimizes Chain Wear by up to 40%
  
• Reduces Energy Costs
  
• Extends Time Between Rebuilds
  
  Extreme Overload Capabilities:
  
• PowerFlex 7000 Kit May be Customized
  
• Normal Duty at 110%, Heavy Duty at 150%
  
• Mine Duty at 280% Overload for 20 seconds of Each 120 Seconds
  
• 6.6 kv Rectifiers with Oversized DC Link Choke and Input Line Reactor
  
  Modular Liquid Cooled Design:
  
• Used in Multiple Motor Configurations, Add or Remove Motors as Required
  
• Separate Controls in Skid or Wall Mounted Configuration
  
• Closed Loop Liquid Cooling System Keeps VFD Cooler and Cleaner for Increased Life and Reliability
  
• Motor Leads Up to 10 KM
  

• Modular Design Provides Flexibility in Number of Motors Used
  
• Main or Booster Applications
  
• Torque and Speed Control
  
  Unlimited Conveyor Start Time Minimizes Belt Tensions:
  
• Minimizes HP Required and Conveyor Component Sizes
  
• Reduces TakeUp Requirements
  
• Extends Belt Life
  
  Allows Conveyor to Operate at Reduced Speeds:
  
• When Less Than Design TPH is Required Conveyor Speed May Be Reduced Belt Inspection Speed for Maintenance
  
  Modular Liquid Cooled Design:
  
• Used in Multiple Motor Configurations, Add or Remove Motors as Required
  
• Separate Belt Controls in Skid or Wall Mounted Configuration
  
• Closed Loop Liquid Cooling System Keeps VFD Cooler and Cleaner for Increased Life and Reliability
  
  Lower Electrical Harmonics:
  
• Active Front End Provides Regenerative Ability
  
• Active Front End Meets IEEE-519 Requirements
  
• SGCT Devices Use Slower Switching Frequencies Reducing Common Mode Noise
  
• Eliminates Need for Drive Isolation Transformers
  
• Eliminates Harmonics Damage to Electrical Distribution Equipment
  
• Motor Lead Lengths Up to 10 KM
  
  Reduces Installation Cost of Low Voltage:
  
• Saves on Cable Cost
  
• Smaller Cables Reduce Installation Time
  
• For 400' of Cabling:
  Saves Over $70,000 in Cable Cost
  Requires Less Than 1/3 of Time to Install or Move