Power Transformers & Electrical Substations

Power Transformers

TRANSFORMER INRUSH

ABSTRACTHere we discuss the phenomenon of transformer inrush; what it is and its significance to transformer protection design. INTRODUCTIONA couple of years ago in this Transformer Special Edition, we wrote an article that covered the most used transformer protection schemes. As was pointed out...

Transformer Protection

A New Approach to High Voltage Insulation System Testing

Speed is the driving force of successful fault prevention. Early detection of insulation deterioration is key for avoiding asset failure, associated unplanned outages, and physical damage to infrastructure. The traditional testing approaches most teams rely on inhibit quick diagnosis of insulation...

Transformer Testing & Maintenance

Metal Enclosed Electrical Bus, The Lifeline to the Transformer, What You Should Know and Why It’s Important to Your Bottom Line

Brief Summary:The purpose of this article is to educate power plant operators and maintenance personnel on the importance of metal enclosed electrical bus, an often-overlooked system critical component spanning from the generator to the main transformer, carrying the system’s full current....

Electrical Substations

Physical Security & Monitoring

Reducing Nuisance Alarm Rates from On-Site Security Systems

The physical security of electrical generation, transmission, and distribution sites is critical. The potential risks of a security failure are clear: disruption to service, damage to equipment, and intruder fatalities.To prevent costly incidents and meet the National Electrical Reliability...

Physical Security & Monitoring

Digital Twins for Substations: Bridging the Physical and Digital Worlds

In the rapidly evolving landscape of power grid management, digital twin technology is emerging as a game-changer for substations. By creating virtual replicas of physical assets, digital twins bridge the gap between the physical and digital worlds, enabling enhanced operational efficiency and...

Substation Automation

RTU and HMI Redundancy in Electrical Substations

As the substation RTU takes on more applications, such as Human-Machine-Interface (HMI), alarm annunciation, math & logic and “relay communication processing”, its need for high availability increases. Anything that takes the RTU out of service – configuration change, firmware update, or...

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3-D Design for Electrical Substations

Exploring 3-D design techniques for electrical substations

BY MIKE MINELLI, & HAROLD HARKONEN, Nordmin Engineering

Since the 1970s, engineering consulting firms typically have been designing substations using two-dimensional computer aided design software (CAD). This common technique produces two-dimensional drawings that are completed individually by designers. Any change to the design requires the designer to manually incorporate the change in each individual drawing.

This process becomes an inefficient design practice as it increases the potential for...

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