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Overhead Distribution

Converting Power Lines to Smart Wires

Increasing the observability and control of the transmission network BY FRANK KREIKEBAUM, JERRY MELCHER, & JULIE COUILLARD, Smart Wire Grid, Inc. The North American power grid has evolved into a connected set of four major interconnections delivering low-cost and reliable energy. The U.S....

Pole Line Hardware

Transmission Line Resiliency

Resiliency is a term used more and more by transmission line stakeholders including designers, operators, and owners. Resilience is simply defined as toughness or the capacity to recover quickly from difficulties. It can be used to describe a system, an object or even a person. Dr. Ginsburg, child...

Case Study

I Need To Hire a Utility Contractor. Where Do I Start?

In June 2012, the Ontario Legislature unanimously passed Bill 8, the Ontario Underground Infrastructure Notification System Act, which, among other things, requires owners of buried infrastructure in the public right of way – including municipalities, universities, hospitals and private...

Vegetation Management

Vegetation Management Best Practices

Reduce common risks and maintain system reliability BY SARA SANKOWICH, Unitil Corporation Most North American electric utilities understand that vegetation management is a key factor in maintaining system reliability. While many utilities have designed and implemented vegetation management programs...

Disaster & Recovery

Emergency Response Kitting

Equipping utilities to restore power quickly and efficiently BY JOE D’ORAZIO, HD Supply Power Solutions In the days before Hurricane Sandy hit the East Coast of the United States, knocking out power from North Carolina to Maine and as far inland as Western Pennsylvania, utility contractors were...

Underground Distribution

Solving Underground Cable Problems with Partial Discharge Testing

How to prevent failure with partial discharge testing BY HENNING OETJEN, Megger Partial discharge (PD) measurements are increasingly used as a reliable and non-destructive diagnostic method to detect weak spots in the insulation of underground cables. Routinely, partial discharge measurements are...

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MV HV cable partial discharge measurement

Cable Testing Comes of Age - One Cycle at a Time

Field Testing of MV and HV cables has come a long way in recent decades. Gone are the days of old, when the traditional DC (Direct Voltage/Current) hipot was the recommended method for testing these modern cables that form the critical backbone of the distribution electrical power network. Extensive research, often rooted in the hard lessons learned through negative experiences in the field, has brought about changes to and improvements in the approaches...

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