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Transcript
MEDIUM VOLTAGE VFD
MOTOR CONTROLLER
Liquid Cooled Components
Active Front End - No Transformer
3300 – 6900 VAC
700 – 2500 HP
www.system-controls.net
Contact: [email protected]
Single 1000 HP, 4160 VAC Motor Controller with Rubber Tire Option
4160 Volt VFD Underground
Motor Controller
• Skid-Mounted Continuous Weld Design
• Input and Output Couplers Standard
• Rubber Tire Option
4160 Volt VFD Underground
Motor Controller
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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
Liquid Cooled Rectifier and Inverter
PowerFlex 7000
• 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 System
Liquid Cooling for Longer Life!
• Closed-Loop De-Ionized Liquid Cooling
• Integral Flat Plate Heat Exchanger Keeps
Closed-Loop System Clean and Contained
Liquid Cooling for Longer Life!
• 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
DC Link Choke
Underground Mining Equipment
VFD Motor Controls
• Face Conveyor and Stageloader
Applications
• Torque and Speed Control
• Enhanced Overload Capacity
Underground Mining Equipment
VFD Motor Controls
• Allows Face Conveyor to Operate at
Reduced Speeds:
– Minimizes Chain Wear by up to 40%
– Reduces Energy Costs
– Extends Time Between Rebuilds
Underground Mining Equipment
VFD Motor Controls
• Extreme Overload Capabilities:
– PowerFlex 7000 Kit May be Customized
– Normal Duty at 110%, Heavy Duty at 150%
– Mine Duty up to 280% Overload for 20
Seconds of Each 120 Seconds
– 6.6 kv Rectifiers with Oversized DC Link
Choke and Input Line Reactor
Underground Mining Equipment
VFD Motor Controls
• 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
4160 Volt VFD for Underground
Belt Conveyor Controls
• Modular Design Provides Flexibility in
Number of Motors Used
• Main or Booster Applications
• Torque and Speed Control
4160 Volt VFD for Underground
Belt Conveyor Controls
• Unlimited Conveyor Start Time Minimizes
Belt Tensions:
– Minimizes HP Required and Conveyor
Component Sizes
– Reduces TakeUp Requirements
– Extends Belt Life
4160 Volt VFD for Underground
Belt Conveyor Controls
• Allows Conveyor to Operate at Reduced
Speeds:
– When Less Than Design TPH is Required
Conveyor Speed May Be Reduced
– Belt Inspection Speed for Maintenance
4160 Volt VFD for Underground
• 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
4160 Volt VFD for Underground
• Lowers 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
4160 Volt VFD for Underground
• 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
MEDIUM VOLTAGE VFD
MOTOR CONTROLLER
Liquid Cooled Components
Active Front End - No Transformer
3300 – 6900 VAC
700 – 2500 HP
www.system-controls.net
Contact: [email protected]