High Voltage Arc Flash Assessment and Applications Part 2
Part 1 of this article, which was the cover story in the previous issue of NETA World, explored the need for high-voltage arc flash (HVAF) assessment to protect utility workers …
High Voltage Arc Flash Assessment and Applications
Arc flash assessment based on IEEE 1584 has limitations with respect to the voltage. The voltage range applicable to IEEE 1584-2018 remains unchanged at 208V through 15kV. Low voltage range …
Recommended Protection Relay Grading Interval
Typical Protection Relay Timing Errors Protection relay grading intervals are critical in ensuring selective coordination in power systems. The recommended protection relay grading intervals typically depend on the type of …
Transients In Low Voltage Electrical Systems
This paper provides a comprehensive review on the types of transients that may affect low voltage electrical systems and discusses various characteristics of lightning, switching, nuclear and intentional microwave impulses …
IEC 61850 Changed Electrical Protection, Control and Monitoring
Intelligent Electronic Devices Electrical protection is as fundamental to the generation, transmission and distribution of electricity as generators, transformers and transmission lines. A couple of decades ago microprocessor based relays …
Network Protection and Automation Guide
The “Network Protection and Automation Guide” (NPAG) is a widely recognized reference book in the field of electrical network protection and control. Before being renamed to Areva, it was known …