Electrical Substations

Breakers & Relays

Protection of Electrical Power Transformers

INTRODUCTIONIn most large electrical systems, generators and power transformers are the two most expensive pieces of equipment. In addition to the capital cost of purchase, these two key devices are also the most critical to continuous and reliable operation of the system.Consider, for example, the...

Lightning Protection

Lightning Discoveries & Technologies

How this phenomenon affects electric utilities BY JIM SIEBERT, FOX 26 Chief Meteorologist Advances in technology are helping scientists understand lightning in ways that were not possible a few years ago. Beforehand, meteorologists primarily studied lightning, focusing most of their efforts on...

Substation Automation

New data suggests real-time pricing can help customers save money

Most utility customers now pay an average price for electricity that changes little (if at all) over the course of the year. Average, flat-rate, real-time pricing is akin to a form of insurance, where a premium is paid to hedge against market volatility and price spikes. Yet this approach misses...

Substation Testing & Maintenance

Insulation Resistance Test

Insulation Resistance (IR) test, often called Megger test, is more than 100 years old and assumed to be a very straightforward test. During my inspection and testing work in the past 15 years in Canada, US, and internationally, I have seen different practices of performing and interpretation of IR...

Physical Security & Monitoring

Preventing Losses Due to Wildlife Contacts in Electrical Substations

Intrusion of wildlife into electric substations is a problem experienced by electric utilities worldwide. In the United States, substation outages caused by wildlife contacts create a financial impact of approximately $20 to $30 billion annually based upon recent EPRI research. This impact is the...

Substation Protection

SCADA for Substations

How new technologies can improve monitoring and control BY LOURENCO TEODORO, InduSoft Substations are a critical component for maintaining electrical supply and load control in low voltage, medium voltage and high voltage electrical distribution networks. In order to ensure the proper functioning...

Home Transformation Electrical Substations

Global study finds continuing moderate growth in protective relay market with commitment to improving protection coordination and grid security practices

In 2016, Newton-Evans Research Company completed a six-month research study and survey of protective relay usage patterns in the world community of electric power utilities. Findings from 114 large and mid-size utilities in 28 countries pointed to some newer trends in adoption and use of protection and control technology.

Among the key findings reported in the 2016 four-volume study were these:

There was a receptive market for incorporating advanced technological capabilities.
The role of synchrophasors...

Electrical Substations Articles

Substation Protection

T&D Buyer’s Guide Companies

Electrical Substations Videos

Electrical Substations Products

DILO 3-033-R002 SF6 Gas Leak Detector

M7100 High-Voltage Asset Analyzer

Electrical Substations Shared Media

Catalog