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Transformer Protection


Advantages of Headspace Hydrogen Monitoring for Network Transformers

INTRODUCTION The utilization of online dissolved gas analysis monitoring has proven to be one of the most effective predictors of overall transformer health and condition. Monitoring can vary greatly from nine gas to single gas systems to best suit the customers application when considering...

Utility Transformers


New Line of Transformer Oil Exclusively for Canada

This summer, Aevitas Inc. announced a partnership with Calumet Specialty Products Partners, L.P. to bring improved access to premier transformer oil products across Canada. Aevitas will exclusively distribute Calumet’s new line of Caltran™ insulating oil — Caltran C50 — in...

Transformer Monitoring


Electrical Transformers


Zensol new instrument for OLTC testing

According to CIGRE A2.34, the dynamic resistance measurement or DRM (OFFLINE) is a test that offers diagnostics for several diverter or selector switch malfunctions such as: contact problems, broken springs, broken transition resistors, poor contact pressure, inadequate transition time, momentary...

Power Transformers

Since 1952 Tallman has been Setting the Standard for Linemen

At Tallman Equipment, we are an employee-owned company that provides tools, equipment, and services for the construction and maintenance of Electrical Transmission and distribution infrastructure. Whether it’s a large, multi-state construction project, managing a storm, or providing power to a single home, Tallman Equipment has the equipment and expertise to make it all happen. 

Tallman Equipment was formed in the mid-1940s when John Tallman returned from World War 2 and teamed up with friends from...

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