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APPLICATION OF THE TEMPERATURE-TIME METHOD FOR MEASUREMENT OF LOCAL POWER LOSSES IN TRANSFORMER STEEL PARTS

Robert Sitar ; Končar – Electrical Engineering Institute Inc.
Žarko Janić ; Siemens E T TR LPT GTC RES Končar - Power Transformers Ltd.

Sažetak

Paper presents an application of temperature-time method for measurement of local losses in
magnetic steel. Developed measurement system is described with focus on design of sensors and choice
of instruments. Chosen equipment is tested on a DC circuit designed for measurement of losses in
aluminum and copper conductors. Same measurement system is used for local loss measurement on
magnetic steel rings. Measurement errors due to non-uniform loss distribution inside magnetic steel and
heat dissipation to surrounding medium are analyzed and estimated.

Ključne riječi

local power loss; temperature-time method; magnetic steel; thermocouple; coupled calculation

Hrčak ID:

199075

URI

https://hrcak.srce.hr/199075

Datum izdavanja:

15.8.2017.

Posjeta: 479 *