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A novel approach for the thermal analysis of air insulated switchgear

Shailendra Singh (Institutionen för material- och tillverkningsteknik, Högspänningsteknik) ; Raimund Summer
21st International Conference on Electricity Distribution (2011)
[Konferensbidrag, refereegranskat]

The international standard IEC 62271-200, stipulates a temperature rise type-test to be performed on switchgear cubicle. Given temperature limits are not to be exceeded. In order to reduce development test cycles, a calculation scheme based on the thermal net method (TNM) [1] is used. Due to certain limitations of the TNM, a combined CFD- TNM method is proposed. The flow field is calculated from CFD and fed into TNM. Knowing the approximated air velocities in- and outside of the switchgear, this information can be applied as parameters to the thermal elements in the TNM calculation. Thus will increase the accuracy of the results than what it would have been achieved with the use of just one simulation method.

Nyckelord: Thermal design, Temperature rise, Switchgears



Denna post skapades 2015-09-13. Senast ändrad 2016-03-16.
CPL Pubid: 222359

 

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Institutioner (Chalmers)

Institutionen för material- och tillverkningsteknik, Högspänningsteknik (2005-2017)

Ämnesområden

Elektroteknik
Elkraftteknik

Chalmers infrastruktur