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GE Vernova to Supply 100+ Turbines for Texas Wind Farms

GE Vernova, a leading global energy technology company, has announced a significant agreement with renewable energy developer RWE to provide over 100 of its advanced wind turbines to two major wind farms in Texas. The deal, which includes the delivery of 109 turbines to the Honey Mesquite wind farm in Glasscock County and the Forest Creek Wind Farm near Big Spring, marks a milestone in the continued growth of onshore wind energy in the U.S....

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Climate Change News

Why Net-Zero is Cheaper for the UK

The United Kingdom has set an ambitious target to achieve net-zero greenhouse gas emissions by 2050. This goal necessitates a comprehensive transformation of various sectors, including energy, transportation, and agriculture. While the environmental imperatives are clear, there is growing evidence...

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Climate Change News

Bills Threaten Renewable Growth and Raise Costs

Texas is at a pivotal crossroads in its energy policy, with legislative actions that could significantly reshape the state's electricity landscape. A recent report by Aurora Energy Research, commissioned by the Texas Association of Business, warns that proposed restrictions on renewable energy...

Electrical Substations

switching times on medium and high voltage Gas Insulated Switchgear

Effective and Safe Testing of GIS Switchgear

To fully assess the functionality of medium and high voltage circuit breakers, various mechanical and electrical parameters must be tested. Gas-insulated switchgear (GIS) in particular poses unique and special challenges, including the connection of the test equipment. In today‘s world, where testing is increasingly performed in a non-invasive manner, test systems must offer a certain flexibility and a wide range of testing solutions in order to get proper results in a timely manner.

Passive determination of switching times for gas-insulated medium-voltage switchgear
Normally, the breaker operating time and the contact resistances are measured on medium-voltage breakers. In addition, corresponding travel curves are also recorded in order to obtain conclusions about the state of the entire mechanism. For Contact time, the connection of the measurement leads is made directly to the main contacts or to easily accessible points such as busbars.
In gas-insulated medium-voltage installations, there are hardly any possibilities for...

Electrical Substations Articles


IN THE DRIVER’S SEAT AND AHEAD OF THE CURVE ON EPC PROJECTS

Based just south of Denver in Castle Rock, Colorado, Great Southwestern Construction, Inc. (Great Southwestern) opened its doors as a small, family-owned business in 1977, specializing in power delivery projects throughout the desert Southwest and Rocky Mountain region. In the mid 1980’s, the...
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...