Applying adjustable frequency controllers to high-starting-torque loads

Author

Saunders, L.A. ; Crawford, K.S. ; Epperly, R.A. ; Murphy, H.G.

Author_Institution

Allen-Bradley Co., Metairie, LA

Volume

31

Issue

1

fYear

1995

Firstpage

68

Lastpage

76

Abstract

Effectively applying adjustable frequency controllers (AFCs) to high-starting-torque loads, such as positive displacement pumps, extruders, and conveyors, can present unique challenges to the application engineer. A detailed understanding of AFC operation, motor performance, load characteristics, and potential application and installation problems is essential to project success. The authors use recent experience to review the essential system concepts and outline a practical method to minimize potential “pitfalls” and facilitate installation and start-up

Keywords

PWM invertors; frequency control; installation; load (electric); machine control; motor drives; starting; torque; adjustable frequency controllers; application; conveyors; experience; extruders; high-starting-torque loads; installation; load characteristics; motor performance; pitfalls; positive displacement pumps; recommendations; Automatic frequency control; Chemical industry; Design engineering; Displacement control; Helium; Oil insulation; Petroleum; Pulse width modulation; Temperature; Torque control;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.363048

Filename

363048