![]() Harmonics are sources of high frequency AC voltages or currents supplying unwanted energy to motor windings, ultimately leading to internal energy losses that dissipate in the form of heat and deteriorate the insulation capability of windings. Simply put, all three voltage phases should always have the same magnitude. Potential faults may lie in the motor’s cabling, terminations or windings, causing stress to each phase circuit. An imbalance in load distribution can in turn cause imbalance across all phases. Three-phase distribution systems are often found serving single-phase loads. When seeking the source of transient voltage, be aware there might not be direct equipment damage, but overall operations could be affected. ![]() This phenomenon is notorious for causing erosion in motor windings. Transient voltage can come from multiple sources such as adjacent loads turning on or off, power factor correction capacitor banks or electrical storm interruption. Keep reading to learn about the most common causes of motor failure. ![]() Having the right knowledge can mean the difference between costly downtime and improved asset uptime. Winding insulation breakdown and bearing wear are the two most common culprits. This involves understanding the mechanical and electrical vulnerabilities of motors. Keeping industrial motors running at peak performance is becoming increasingly complex, which is why it’s important for facility operators to know how to conduct a proper motor failure root cause analysis. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |