Inspire Blog

GE Motors and Industrial Systems


Need Help with Your Nameplate?

Reading a motor’s nameplate can often be challenging. Nameplates differ according to manufacturer, and a variety of factors, such as dirt and damage, can hide crucial information needed to size a Variable Frequency Drive (VFD), make a repair, find a replacement, correct the power factor, purchase parts, or do almost anything with the motor. But even a clean nameplate can be confusing with all of the abbreviations and codes used in such a small space. The following guide is designed to help you understand the crucial information contained on your motor’s nameplate.

Step 1: Gather Nameplate Information

Listed below is the information you will need to select your motor. If you are replacing an existing motor, the following information can be located on the nameplate of the motor. See the sample nameplate on this page:
  1. Phase (PH): Either single (1) or three (3). This should match exactly.
  2. Voltage (Volts): This should match exactly.
  3. Horsepower (HP): Very small motors are often rated in watts. Choose an equal or next higher HP.
  4. Physical Size/Frame (FR): This should match exactly.
  5. Speed (RPM): This should match within 5%.
  6. Frequency (Hz): This should match exactly.
  7. Service Factor (SF): This should be an equal or greater number.
  8. Type: See below.

    a. Shaded Pole - Small direct-drive fans and blowers

    b. PSC - Direct-drive fans and blowers

    c. Split-Phase - Belt-drive and direct-drive fans and blowers, small tools, centrifugal pumps, and appliances

    d. Capacitor-Start - Pumps, compressors, tools, conveyors, farm equipment, and industrial ventilators

    e. 3-Phase - Applications where 3-Phase power is available

  9. Enclosure (Encl.): See below.

    a. ODP/Open - Clean, dry, non hazardous environments

    b. Enclosed TEFC/TENV - Dirty, moist, non hazardous environments

    c. Hazardous - Designed for use in hazardous environments as defined by National Electric Code (NEC) classifications. NEC Class and Group are designated on UL Hazardous Location nameplate mounted on the motor.

  10. Duty Cycle: If the current motor is an intermittent...


Share this article





Related Posts



Latest Posts
Applications of Control Systems in Industry
Applications…
The demand for installed wireless control…
Define open loop control system
Define open loop…
Likewise, if something happens to disturb…
Control Systems Engineering companies
Control Systems…
Our students are sought for their interdisciplinary…
Load frequency control in power system
Load frequency…
The paper presents a new discrete-time…
Aftermarket Traction control system
Aftermarket Traction…
Warning: Please read the notes on our…
Search
Featured posts
  • Evaluation of internal control systems
  • Feedback control of Dynamic Systems eBook
  • Define open loop control system
  • EVAP Emission control system
  • Version control systems comparison
  • Control Systems Engineering companies
  • Automatic temperature control Systems
  • Philips home theatre system remote control
  • Aftermarket Traction control system
Copyright © 2018 l www.oliver-control.com. All rights reserved.