High-Efficiency Motors

Product catalog summary

Overview: Armstrong HE Series motors are high-efficiency, general-purpose polyphase squirrel cage induction motors. They comply with NEMA and IEEE standards and have been tested at Hydro-Quebec’s independent laboratory. These motors meet or exceed the efficiency requirements of the US Energy Policy Act of 1992 and Natural Resource Canada Standards.

Specifications: The motors feature Totally Enclosed Fan Cooled (TEFC) enclosures with IP54 protection and Class F insulation. They are designed for high starting and breakdown torque, low noise, and vibration levels, suitable for continuous operation at 104°F (40°C) and lower ambient temperatures. They are available in power ratings from 1 hp to 100 hp.

Key Features:

Cast iron TEFC three-phase general-purpose design.
Class F insulation with class B temperature rise.
Service factor of 1.15.
Voltage options: 208 V, 230 V, 460 V, 575 V at 60 Hz.
Wye-Delta starting standard on frames 213TC and larger.
Rigid base F1 mounting and C-face.
CSA and ISO 9001 certified.

Construction Details:

Steel fan cover and non-sparking fan for noise reduction and efficiency.
Heavy-duty cast iron frame and end plates.
Alloy aluminum nameplate with efficiency and wiring details.
Copper magnet wire and high-grade electromagnetic steel stator.
Cast aluminum rotor dynamically balanced for reduced vibration.
Ball bearings with permanent lubrication for smaller frames and regreasable for larger frames.
Corrosion-resistant condensate drains and oversized conduit box.

Performance Data: The motors are available in various horsepower ratings and frame sizes, with detailed performance metrics such as torque, current, efficiency, and power factor provided for each model.

Installation and Maintenance: Armstrong motors are designed for easy installation with detailed connection diagrams provided. They require proper belt tension and alignment for optimal performance. Lubrication schedules are specified for different frame sizes and service conditions, with recommended greases listed.

Conclusion: Armstrong HE Series motors are robust, efficient, and versatile, suitable for a wide range of industrial applications. They offer high performance with low maintenance requirements, ensuring reliability and longevity.

Catalog excerpts

FILE NO:48.10DATE:Dec. 14, 2005 SUPERSEDES:New DATE:New >

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Armstrong HE Series motors are general purpose polyphase squirrel cage induction motors meeting all required NEMA and IEEE standards. Inaddition to numerous in-factory sampling motor tests to verify and improve designs, motors were tested at Hydro-Quebecs independent motortesting laboratory in Canada. Armstrong HE Series TEFC motors from 1 hp to 100 hpcurrently meet or exceed the efficiency requirements of the US Energy Policy Act of1992 (EPAct) and Natural Resource Canada Standards (NRCan).All Armstrong motors have TEFC enclosures, with IP54 protection and Class Finsulation system, and meet...

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