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Explosion-protected electrical Drive Systems

Working Group 3.63


The tasks of working group “Explosion Protected Electrical Drive Systems“ comprise testing and assessment of electrical drives and complete drive systems as well as protection equipment required for safe operation of explosion protected electrical machines (ATEX and IECEx) including research relating to this range of topics.
Here, another aspect is the thermal evaluation of enclosures with built-in components such as control units used in potentially explosive atmospheres.
Another important focus is put on new research topics concerning all aspects of electrical drive technology performed in cooperation with universities and companies.
Furthermore, technical guidance for users of explosion protected drives is another element in the range of tasks of this working group. For detailled information concerning our range of tasks please refer to the respective websites.

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Aktuelle Forschungsvorhaben

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Current publications

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Die Messunsicherheit bei der Wirkungsgradmessung an permanentmagneterregten Synchronmaschinen - ein Vergleich des direkten und indirekten Messverfahrens

Author(s): C. Lehrmann and N. Yogal
Journal: PTB- Bericht
Year: 2019
Month: September
Day: 18
Volume: Ex-10
Series: PTB Bericht
Pages: 9 - 21
Publisher: Fachverlag NW
Publisher address: Bremen
Event name: 306. PTB-Seminar
Event place: Braunschweig
Event date: 18.01.2018
File URL: file:261458
Abstract: Im Rahmen dieses Beitrages werden die indirekte Bestimmung des Wirkungsgrades über das
Einzelverlustverfahren und die direkte Wirkungsgradbestimmung an einer
permanentmagneterregten Synchronmaschine der Bemessungsleistung 7,5 kW mit
Oberflächenmagneten verglichen. Hierbei wurde gemäß des „Guide of the uncertainty of
measurement” /1/ eine detaillierte Messunsicherheitsanalyse durchgeführt und die Ergebnisse
gegenübergestellt und bewertet.

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