Open Drip-Proof

Toshiba’s medium voltage Open Drip-Proof (ODP) motors are designed for optimal performance in clean, dry, and controlled environments. Their open construction allows for effective cooling while preventing liquid droplets from entering the motor, protecting internal components. Known for their high efficiency, ODP motors reduce operating costs and deliver substantial power output, making them optimal for heavy-duty applications. Constructed from robust cast iron, these motors are built to withstand industrial stresses and provide long-term durability.  Customizable features allow these motors to meet specific application requirements, including different mounting and cooling options.

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Overview

Drip-Proof Design

Ideal for large, well-ventilated rooms.

 

Fan Design

3-D fluid analysis is used to model airflow and optimize fan design, providing maximum airflow with reduced frictional losses.

 

Frame Construction

Finite element analysis is utilized to determine optimal rigidity.  The design reduces vibration by maintaining stator-to-frame concentricity.

 

Customizable

Built to meet application requirements, backed by U.S.-based application engineering and support for a precise fit and reliable performance.

 

Drive Duty Compatibility 

The insulation meets NEMA MG1 Part 31 standards.  It can be paired with a UL-Listed Medium Voltage Drive, which features a motor-friendly multiphase neutral point clamped output.

 

Rotor Options Based on Frame Size:

Aluminum Rotor

High-pressure diecast aluminum rotors offer a lightweight, cost-effective solution. Low rotor inertia improves acceleration and deceleration, while excellent thermal conductivity enhances cooling. Corrosion-resistant properties increase reliability in harsh environments.

Copper Bar Rotor

Copper bar rotors deliver high electrical conductivity for improved efficiency and reduced losses. They provide higher starting torque and operate at lower temperatures, making them ideal for heavy-duty, high-performance applications where thermal stability and energy efficiency are critical.

Insulated Bearings

  • An electric motor operating on an adjustable speed drive is at risk for premature bearing failure caused by stray currents. Experience indicates using insulated bearings on both ends of the motors is the most effective way to protect the motor from destructive currents. A high level of bearing protection is especially beneficial in applications where motor maintenance and replacement are difficult.
  • Extended Horsepower Capability

  • Extended horsepower capability allows a smaller motor to run at a higher horsepower than its baseline depending on the application requirements. This provides motor users potential cost savings while achieving the same motor performance.
  • Insulation with Wide Thermal Capability

  • Critical cooling motors utilize many Class H insulation materials in its winding designs, which provides increased thermal protection. These motors operate with a very low temperature rise at rated conditions, giving them a wide thermal margin and extended motor life.
  • Low Vibration

  • A vibration level exceeding NEMA MG1 requirements provides stability and durability by prolonging motor and bearing life and helping to reduce downtime.
  • Specifications

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