Transformer Testing Course – e-lesson #15: Measurement of zero-sequence impedance

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Course: Transformer testing Master’s level

Hosted by: Balazs Sztari / Master's level

This is the 15th lesson in the Transformer Testing Course, authored and conducted by Balazs Sztari. Get the room link now!

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The zero-sequence impedance on three-phase transformers is important for calculation of asymmetrical fault cases, therefore it is measured during factory acceptance tests. In this lesson you will learn how to perform this test and how to understand the results. We will discuss this important parameter for three-phase electrical network design and fault calculations. Join us and learn how to measure properly.

Keywords: power transformers, transformer testing, zero-sequence impedance, homopolar impedance, measurement

#free live attendance #management in transformers p1 #transformer engineering p1 #transformer engineering p2 #transformer engineering p3 #transformer reliability p1 #Transformer testing All #Transformer testing Master's

About the author

Balazs Sztari

Ganz Electric

Balazs Sztari graduated as electrical engineer in Budapest. Beside of factory acceptance tests, his team performs commissioning, diagnostics and R&D tests on power transformers and rotating machines.

He is currently a member of Cigre A2.53 working group.

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