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Electric Motor Troubleshooting Guide

From Advanced Fluid Systems, Inc.
 

 

Properly installed and maintained Lincoln Electric polyphase AC induction motors operated within the nameplate ratings will run trouble-free for many years. Problems and premature failures often indicate input power system troubles, poor or deteriorating mechanical installations, or malfunctions in the driven machinery. Therefore, motor troubleshooting involves the entire system, not just the motor.

Product Announcements
Automationdirect.com - Motor Control-Starters/Contactors/Overloads/Relays
Motor contactors,relays, & manual motor starters provide complete motor control solutions up to 300 Hp. Starters accommodate motors up to 100 Hp at 480 VAC, while MMS combination starters... (read more)
Bluffton Motor Works - 48 and 56 Frame General Purpose Motors
Nothing cuts into profits like poor product performance. It can lead to increased warranty claims, dealer frustration and --worst of all-- dissatisfied customers. That's why Bluffton Motor Works makes... (read more)
Groschopp, Inc. - Gearmotor System Efficiency Specs Available Online
When specifying or selecting a gearmotor, relying on the published motor power specification (HP) alone may not lead to an optimized solution. Learn more about how the motor efficiency AND gearbox... (read more)
This introductory course will benefit the attendee by allowing them to obtain information about both technologies simultaneously. (read more)
JiangSu Overseas Group Co., Ltd. - AC Motors
AC Induction Motors and AC Induction Gearmotors,6w,15w,25w,40w,60w,90w,120w,140w. including reversible motor,brake motor,speed adjustable motor, brake speed adjustable motor, torque motor. Gearbox is... (read more)
Time Mark Corporation - Model 2644 - 3-Phase Monitor
Monitors Low Voltage, Phase Loss and Phase Reversal, Optional Restart Delay... (read more)
Wuxi HWATAN Electric Machinery Co., Ltd. - AC Motors Y,YKK,YKS Series Horizontal Type
Y, YKS, YQF, YKK series medium-scale HV 3-phase asynchronous machines(base No. 355-1120mm) are our own designed products after introducing the design and manufacture techniques of 3-phase asynchronous... (read more)
 
Topics of Interest
PERFORMANCE Ac induction motors are designed to produce their rated power at a certain speed at a specific line voltage, line frequency, and ambient temperature. These motors will also operate at a... (Read More)
An electric motor that has been properly maintained will contribute greatly to the continuous operation and success of a plant. Since the cost of unscheduled downtime is high, regular maintenance of... (Read More)
Protection and Ratings Motor Protection The typical method of starting a three-phase induction motor is by connecting the motor directly across the power line. Line starting a motor is done with a... (Read More)
AC Motor Types Introduction AC motors can be divided into two major categories-asynchronous and synchronous. The induction motor is probably the most common type of asynchronous motor (meaning speed... (Read More)
TYPES OF MOTORS Alternating-Current Motors SQUIRREL-CAGE INDUCTION MOTOR  By far the most common motor used to drive pumps is the squirrel-cage induction motor (Figure 1). This motor consists of... (Read More)