Electricity Forum Intelligent Power Today Magazine Arc Flash Clothing

News and Trends

Latest News From The T&D Industry

Scientists Fear Loss of Climate Data Under Trump

In the wake of the tumultuous political climate during Donald Trump's presidency, scientists across the United States have expressed deep concern about the potential loss of crucial climate data. These fears emerged from a broader apprehension that, in the midst of political upheaval, the progress made in climate research could be severely disrupted. With the outgoing administration's stance on climate change being one of skepticism and reluctance to acknowledge the scientific consensus on global warming,...

Popular T&D Articles


T&D Buyer's Guide


T&D News




Climate Change News

Climate Change and California’s Wildfires

California has long been synonymous with its stunning landscapes, from its rugged coastlines to its sprawling forests. However, in recent years, the state has increasingly become known for its devastating wildfires, a problem that has only worsened due to climate change. These fires have ravaged...

T&D Trends


Utility News

Calculation of Capacitance Matrix in Electrical Systems

In typical electrical systems, the capacitance between multiple conductors is of primary interest. To facilitate calculations, it is possible to arrange the mutual capacitances of a system of N conductors in a matrix format. For precise calculations of capacitance matrices in electrical systems,...

Electrical Substations

Properly Grounded Substations

Adequate utility grounding improves power quality, but more importantly, it is essential for worker safety as well as public protection. Design is critical in maintaining a safe equipotential environment all around the substation.

Construction is important to accommodate fault currents without leaving the substation with dangerous potential gradients.

A tester must establish a sufficiently low resistance to remote earth so that operation remains within safe parameters. Similarly, safe step and touch potentials must be established for the protection of workers and public during fault conditions. Step potential is the distance between a person’s feet and touch potential is the voltage between the energized object and feet of the person.

ELECTRICAL PROPERTIES OF SOIL
Undoubtedly, grounding begins with the earth itself; that is to say, the electrical properties of soil and its ability to carry return current and disseminate fault currents. This property is known as resistivity.

Soil structure and...

Electrical Substations Articles


Substation Technologies

Circuit Breaker Time and Motion Testing

Determining mechanical condition of high-voltage circuit breakers BY JOZEF LEVI, Doble Engineering Company Life expectancy of a newly installed high-voltage circuit breaker is approximately 40 years. Throughout its life, under normal circuit conditions, the circuit breaker will operate less than...
Substation Automation

RTU and HMI Redundancy in Electrical Substations

As the substation RTU takes on more applications, such as Human-Machine-Interface (HMI), alarm annunciation, math & logic and “relay communication processing”, its need for high availability increases. Anything that takes the RTU out of service – configuration change, firmware update, or...