CINCINNATI--(BUSINESS WIRE)--Qualus Power Services, LLC, a leading provider of engineering and technical field services to utilities and electric power grid infrastructure, announced that it has ...

The objective of protective relays and protective schemes is to protect electrical equipment such as transformers, lines, cables, bus bars, etc. during abnormal system conditions. Hence, protective ...

Duke Energy is evaluating the use of a point to point digital secondary system to reduce the amount of copper utilized in traditional substation protection designs. Physically large substations with ...

The rate of transient occurrences varies with every power system. Recent studies show that surges of 1kV or less are common — whereas 3kV surges are rare. Protecting against more frequent (internally ...

Why a gas-discharge tube is an important component for overvoltage protection. The history of spark gaps—predecessors to GDTs—includes a role in famous movies. How a new, compact, surface-mount GDT ...

Emergency systems [Art. 700]. These are generally used to provide power so occupants can safely exit in the event of fire or other disaster. Other uses include providing ventilation essential to ...