|
|
Submersible Pumps
|
Are submersible pumps right for dry pit service?
|
|
|
Bearing Failures
|
This series of articles is intended to serve as an aid in identifying the causes of bearing failures and to provide guidance on how to avoid future problems.
|
|
|
Maintain Efficiency
|
When a motor is repaired or rewound, it is crucial that steps taken to maintain efficiency be coordinated. This paper explains motor efficiency, and how not to increase losses during repair.
|
|
|
Retrofitting Drives
|
Two case histories illustrate retrofitting of electric motor and drive systems. The first case is a pump reliability issue, and the second is a solution to a "water-hammer" problem.
|
|
|
Latest Repair
|
Here we consider how computers and advances in data acquisition impact on the motor repair process in a technologically advanced electrical apparatus service center.
|
|
|
Unbalanced Voltages
|
Causes and Consequences. The information presented in this article is intended as a primer on unbalanced voltages that affect electric motors. It concisely addresses the symptoms, causes, effects, and correction.
|
|
|
Motor Vibration
|
Symptom or Disease? Motor vibration is both a symptom and a disease. As a symptom, it is the precursor of trouble. As a disease, it is more widespread than most people are aware of.
|
|
|
Motor Nameplate
|
What does all that extra information on the nameplate mean? Do you care? The answers are "maybe," and "you probably should."
|
|
|
Bearing Symptom Chart
|
Want to know why a bearing failed? We address cause, not just effect. See this chart for bearing failure symptoms, causes and solutions.
|
|
|
Pump Test Stand
|
LONGO issues upon request a certified test report of the actual performance curve.
|