Asynchronous (Induction) Motor Data – IEC 60909
Design engineers most of the time will refer to induction motor manufacturer’s data as an input to their design. This practice is totally acceptable. In the absence of a manufacturer’s …
PEC Requirement for Ground-Fault Protection
What is ground-fault protection? Ground-Fault Protection of equipment is a system intended to provide protection of equipment from damaging line-to-ground fault currents by operating to cause a disconnecting means to …
Circuit Breaker Utilization Categories (IEC 60947-2)
Utilization category (for a switching device or a fuse) is defined in IEC 60947-1 as the combination of specified requirements related to the conditions in which the switching device or …
Renewable Energy sources – Pros & Cons
What Is Climate Change? Climate change refers to long-term shifts in temperatures and weather patterns. Since the 1800s, human activities have been the main driver of climate change, primarily due …
The Need for Power System Fault Analysis
Short-circuit analysis is carried out in electrical power systems to ensure that the selected electrical equipment and the installation as a whole is safe for workers as well as the …
ATEX Certified Equipment
Contents I. What is ATEX? II. Explosive Atmosphere