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Electrical Substations


Cybersecurity in Substation and Grid Communications

As power systems become increasingly digitized and connected, the importance of cybersecurity in substation and grid communications has grown exponentially. With the integration of intelligent electronic devices (IEDs), SCADA systems, and remote monitoring, modern substations are now part of a...


How Dangerous is Linemen Work?

Many occupations pose risks to workers, but few match the dangers that linemen face daily. Linemen play a critical role in maintaining and restoring the power grid, often working in extreme weather conditions, at significant heights, and around high-voltage electrical systems. Their work is...

Power Transformers




Transformation

Sweep Frequency Response Analysis

Sweep frequency response analysis: Reliable demagnetization of transformer cores

BY MARKUS PÜTTER, MICHAEL RÄDLER, BORIS UNTERER, OMICRON electronics GmbH

Whenever a power or distribution transformer is isolated from the power system, it is very probable that residual magnetism remains in the core due to the phase shift. However, residual magnetism also occurs when performing winding resistance tests. Since manufacturers use these measurements in their routine testing and these tests are typically performed for on-site condition...

Transformation Articles