Low Voltage Three Phase AC Motors Protection – Part 2
This is Part 2 of the series of articles about three (3) phase Ac motor protection. Part 1 could be found here. Overload Protection Overload protection permits the motor to …
Low Voltage Three Phase AC Motors Protection – Part 1
This article will be divided into several sections to discuss the control of three (3) phase AC motors including protective features available for the control of starting and operating this …
Non-electrical Methods of Partial Discharge (PD) Detection
Partial discharge is defined as the localized electrical discharge that only partially bridges the insulation between conductors and which can or can not occur adjacent to a conductor. Partial discharge …
Extending Equipment Service Life
In critical operations, extended plant shutdown is not acceptable unless it is a turnaround. A turnaround (TAR) is a scheduled event wherein an entire process unit of an industrial plant …
Common Mode Voltages: Causes, Effects and Mitigation
Common-mode voltages are a common phenomenon when variable speed drives (VSD) are employed to control motors. There are many advantages of using VSDs in motors. Speed/torque control, and power consumption …