NovaTorque is introducing new higher 7.5 hp and 10 hp models of its PremiumPlus+™ motors. The 7.5 hp and 10 hp versions, driven by variable frequency drives, boast motor-only rated point efficiency of over 94 percent.
To minimize motor imperfections, contractors must stress the importance of a comprehensive inspection, properly identify and diagnose the root cause of the deficiency, and be able to explain the failure to customers in terms they’ll understand.
Loose electrical connections to motor terminals can cause voltage drop, overheating, and a chance of fire. For three-phase motors, a loose connection can cause single phasing — which will damage the motor.
MARS, a leading commercial and residential HVACR motors and components supplier, announced that it has acquired Heat Controller Inc., Jackson, Mich., a leading commercial and residential HVAC equipment supplier.
Demand in the United States for electric motors is expected to increase 4.6 percent annually through 2017 to $14.4 billion, accelerating from the pace of the 2007-2012 period, when nearly every major market for these devices struggled.
Regal Beloit Corp. announced that it has completed the acquisition of the RAM motor business previously owned by Schneider Electric. This business manufactures hermetic motors from 250 hp to 2,500 hp for commercial HVAC applications.
All major manufacturers of three-phase ac induction motors offer “inverter-duty” or “inverter-ready” models, but while these motors have inverter-rated insulation to protect the windings, the bearings — their most vulnerable parts — are too often ignored.
Four Regal Beloit Corp. divisions officially introduced a total of six new products at their exhibit (Booth 2301). Genteq launched Evergreen EM, the latest in its line of standard ECM replacement motors for the aftermarket/distribution market.
Bob and Tim arrived at their fifth service call of the day. They were both wet from servicing a heat pump outdoor unit in the snow. This was a no heat call for a gas furnace. The weather was cold and there was no heat at all in the house.