Electricity Forum Intelligent Power Today Magazine Arc Flash Clothing
Electrical Substations Featured Fleet Management Growth & Innovation HV Test Equipment Industry News & Trends Lineman Safety MARKETPLACE Overhead T&D Power Transformers Renewable Energy Smart Grid Smart Metering Software and Apps State of Industry T&D Automation T&D Companies T&D Products White Papers

Substation Protection


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 Strikes

In Canada, lightning flashes occur about 2.34 million times a year; with the highest levels of concentration during the summer months. While most lightning on earth is ground-to-cloud,  recent research has identified that the majority of lightning events to tall structures, such as wind turbines,...

Breakers & Relays


Dynamic Resistance Measurement

Condition testing of circuit breaker’s arcing contacts BY BUDO MILOVIC, DV-Power The preventive maintenance on a high-voltage (HV) breaker consists of several routine tests. The timing and motion tests are methods used to assess the breaker’s mechanical condition. When the timing and motion...

Physical Security & Monitoring


Utilities Await New Physical Security Standard

U.S. regulator takes next step in approving physical security standard BY PHILL FELTHAM, Editor-in-Chief Electricity Today Magazine Recently, the Federal Energy Regulatory Commission (FERC) announced a proposal to approve the physical security reliability standard (CIP-014-1), submitted by the...

Substation Testing & Maintenance


End-to-End Monitoring Systems Feeds Situational Awareness

For many years the limit for normal apparatus loading was based on the maximum nameplate rating or an arbitrarily set value, called ‘the red line’. On-line monitoring of power transformers and circuit breakers for condition assessment has gained popularity over the past twenty-five...

Substation Technologies


The Digital Substation Utopia

Electric utilities have long considered digital substations an insubstantial concept: an ideal vision of all-knowing substations networked into an intelligent grid. However, technological innovations have slowly emerged in the past few decades, consequently, transforming this utopian vision into a...

Electrical Substations

Substation Maintenance Best Practices

Improving substation maintenance best practices for greater success

BY BUDO MILOVIC, DV-Power

Currently, substation maintenance—regular or emergency—operations and best practices must fit the utility’s goal of accomplishing more with less, in order to maximize assets and minimize outages. A caveat to this weighty goal is to accomplish more with less with a reduced workforce and under tight budgets. Field workers face this reality daily. Therefore, to overcome such challenges, maintenance crews have to be properly...

Electrical Substations Articles