Self-Sufficient Outdoor Enclosure
TMdrive-Guardian is a self-sufficient enclosure for the TMdrive-MVe2 medium voltage (MV) variable frequency drive (VFD) that eliminates the need to house the drive in a temperature-controlled industrial control building or E-house and has the potential to save companies thousands of dollars and make engineering, procurement, construction, and maintenance a breeze.
Cooling has remained a primary concern in the industry since MV air-cooled drives became a staple to accomplish energy savings, soft starting, and speed control for heavy rotating machinery such as pumps, compressors, fans, extruders, blowers, hoists, shredders, and many more applications. TMEIC’s outdoor enclosure solves the thermal management challenge.
The enclosure further enhances the TMdrive-MVe2, delivering more ease of use and value to operators. Introduced in 2014, the TMdrive-MVe2 supports medium-voltage motors without the need for an output transformer and provides variable reactive power compensation for voltage support and line-side power factor correction. The unique design eliminates the challenges associated with aging variable frequency drive designs, such as low efficiency, fixed input power factor, and high output harmonics. Now, with the custom outdoor enclosure, the drive can be applied outdoors with short lead times and budget friendliness.
Enclosure rating | NEMA Type 3R |
Temperature rating | -40° to +50°C |
Voltage | 4.16 kV |
Approximate Motor Shaft HP | 4.16 kV: 536 - 3,040 |
Rated Output Current (A) | 69 - 385 |
Inverter kVA output | 4.16 kV: 500 - 2,770 |
Frame | 100 - 600 |
Installation site | Outdoor, nonexplosive |
Wind Speed | 125 MPH |
Snow Loading | 30 lb/ft² |
Enclosure structure | Steel sided and thermally insulated wall and door panels |
Power Cable | Back wall entry |
Enclosure mounting | Pad, pier or spot footings |
Enclosure Base | Galvanized |
Enclosure lifting | Forklift and provisions for crane lift |