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Maintenance

Insulator Test Station Helps Support Preventative Maintenance Strategy

October 14, 2017 • ARTICLE ARCHIVE, Insulators, MaintenanceComments Off on Insulator Test Station Helps Support Preventative Maintenance Strategy

While insulators account for less than 10% of the total cost of new overhead lines and substations, the potential consequences of their improper selection and poor performance are estimated to account for up to 60% of the Life Cycle Cost of these installations. In addition, insulator failures are the most frequent cause of costly unplanned ...

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Rules for UAVs in U.S. Benefit Power System Applications

September 22, 2017 • ARTICLE ARCHIVE, Maintenance

Perhaps the major constraint to the burgeoning growth of unmanned aerial vehicle (UAV) technology is governmental oversight to ensure their expanded use does not pose risks to civil aviation or the public. Fortunately, new rules from the FAA make it legal,...

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Sampling Based Maintenance: Assessing Condition of Composite Insulators After Years of Service

August 26, 2017 • ARTICLE ARCHIVE, Insulators, Maintenance

With their growing popularity as the insulator of choice for many line projects throughout the world, the ideal inspection program for silicone insulators has become a hot topic. This is particularly the case since, even after years of investigating...

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Comparing Maintenance of New Transmission Structures with Traditional Lattice Towers

June 10, 2017 • ARTICLE ARCHIVE, Maintenance

Grid operators worldwide have been under growing pressure to make power structures more aesthetic as one of the most effective ways to help assure public acceptance of new projects. However, line design using monopole towers can also positively impact several...

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Reduce Wildlife Outages at Distribution Substation

Protective Devices Installed to Reduce Wildlife Outages at Distribution Substation

June 10, 2017 • ARTICLE ARCHIVE, Article of the week, Maintenance, Wildlife Protection

Among the most vulnerable links in any power network are the points of interaction between live equipment and wildlife – from birds to scavenging carnivores. Taken together, these creatures present a constant threat to the safe operation of network assets....

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Comparing UV & IR Diagnostic Inspection of Lines & Substations

June 3, 2017 • ARTICLE ARCHIVE, Corona, Inspection, IR, Maintenance, UV

One of the issues in maintenance of overhead lines and substations relates to better understanding what is being revealed during ultraviolet or infrared inspections of equipment and hardware. Do these two technologies highlight the same problem or are they...

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Comparison of Methodologies to Detect Damaged Composite Insulators

May 27, 2017 • ARTICLE ARCHIVE, Maintenance

As the rate of application of composite insulators on overhead lines has spiralled in recent years, accurate methods to monitor them for critical damage (especially internal defects) have taken on prime importance. Apart from the obvious impact on reliability...

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Detecting Composite Insulator Designs Susceptible to Brittle Fracture

April 29, 2017 • ARTICLE ARCHIVE, Insulators, Maintenance

The population of composite insulators in medium and high voltage grids worldwide is growing constantly. As numbers of these insulators increase, so do cases of failure. In HV networks, a sudden and serious failure mode called brittle facture has occurred...

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