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4 lip 2021 · This article will review four major enclosure options (ODP, WPII, TEWAC and TEAAC) for large- and medium-size electric motors (3,000 horsepower [hp] or larger) and a guide for selecting proper motor enclosure types while considering cooling methods, pros/cons, motor size, cost, reliability and site environments.
Please review this document to ensure the optimal motor operational experience. It is important to understand each unique motor and how it was designed to meet the given application. 1.1 About these instructions These instructions describe the machine and explain how to handle it, from initial delivery to final disposal of the equipment.
The most commonly used enclosures are the Open Drip Proof (ODP), Weather Protected Type I (WPI), Weather Protected Type I1 (WPII), Totally Enclosed Air to Air Cooled (TEAAC), Totally Enclosed Fan Cooled (TEFC), and Totally Enclosed Water to Air Cooled (TEWAC). They come with varying degrees of protection and cost.
review four major enclosure options (ODP, WPII, TEWAC and TEAAC) for large- and medium-size electric motors (3,000 horsepower [hp] or larger) and a guide for selecting proper motor enclosure types while considering cooling methods, pros/cons, motor size, cost, reliability and site environments.
Squirrel cage induction machines can be driven by various types of prime movers. These will act as induction generators. This instruction manual applies to both motors and induction generators. However, for clarity reasons, the machine will be referred to as a “motor”.
10 sie 2016 · TEAAC When the motor is outdoors and too big for a TEFC and when a WPII type is not acceptable for environmental reasons, a totally enclosed air-to-air cooled (TEAAC) enclosure is usually the next choice. The motor has a large air-to-air cooler on top so hot air created in the motor is circulated up and over the heat exchanger.
1 paź 2001 · WPI motors are routinely provided with rodent screens since they are often used in lightly protected indoor areas where these creatures might chew on the wire insulation. WPII motors provide a higher degree of protection than WPI models and are usually used outdoors in mild-to-moderate climates.
