Air Cooled VFDs
Low-Voltage Variable Frequency Drive Solution for Demanding Applications
Air cooled AC drives are designed to control the speed and torque on low voltage induction motors. The drives features inverter modules with high-current IGBTs that can be paralleled for a wide range of motor horsepowers.
These drives can be configured as stand-alone units, packaged into a common-DC bus arrangement, or supplied with active front end (AFE) rectifiers for
regenerating energy.
Each drive module comes equipped with an integral centrifugal blower for removing heat. Current Power can provide VFDs as part of a packaged solution with any or all of the following products:
- Electrical building (power house)
- Generator control and distribution switchgear
- PLC based automation system
- Control consoles
Standard drive options are available, but Current Power can provide detailed engineering necessary to meet your specific application within the ratings listed below. For further information, contact sales@currentpsi.com.
Standard Features
- Line disconnect for isolation and lockout of the drive
- Input line reactance for transient protection
- High speed fuses for protection of sensitive electronics
- Digital controller with parameter based operation and analog and digital I/O
- Door mounted HMI digital display and keypad
- Emergency stop pushbutton
- Tin-plated copper buswork
- Front access design for simple access to modular drive components
- Free standing, welded frame cubicles with a light grey powder coat finish
- Tin-plated copper ground bar
- Dedicated engineering support during design and fabrication
- Full load tests done prior to shipment
- Documentation package including engineered drawings and product data sheets
STANDARD AVAILABLE RATING:
AC Supply Voltage 380 – 690Vac
Motor Horsepower Up to 6000HP
Ambient Temperature 0 – 50°C (32 – 122°F)
Continuous Motor Current Up to 6500Aac
Frequency 0 – 200Hz
Cooling Forced Air Ventilation
Enclosure Dimensions 91” H x *” W x 32” D
* Width of enclosure varies with motor current/horsepower
Optional Features
• Common DC bus arrangement for more efficient use of rectifiers
• Active Front End (AFE) rectifier arrangement for regenerating energy
• 12 and 24 pulse configurations for harmonic mitigation
• Dynamic braking chopper and resistor
• Profibus, Profinet, or Modbus communications
• Motor encoder interface
• Anti-condensation space heaters
• 3rd party design approval and/or certification
• Remote control panels
• Installation and commissioning services
• Training classes on operation and maintenance
PROJECTS
