Training Power Systems Troubleshooting

Training Power Systems Troubleshooting INTRODUCTION No matter how complete or expensive an electrical system is, the components of the system begin to deteriorate as soon as they are installed and failure of some component in the system will ultimately result.  If deterioration is not checked, it can cause electrical failures and malfunctions.  In addition, load changes or circuit alterations may be made without overall design coordination, which can result in improper selection of equipment, or settings of protective devices, or wrong trip units installed in the circuits.  There are certain definite and logical methods and procedures in locating the source of trouble on electrical equipment.  Experience indicates that in most cases where the exact trouble spot is not determined, it is because the troubleshooter has not applied his or her knowledge properly. Blown fuses, overload contacts, open contacts, short circuits, burned out coils, and grounds are responsible for most electrical circuit failures.  These problems should be relatively easy to find and correct.  Many...
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