AC hysteresisgraph with single strip tester

Tampere University Foundation sr (Contracting authority) is publishing direct award notice for 'AC hysteresisgraph with single strip tester'.

BACKGROUND INFO Tampere University (TAU) has a rather large research group of Electromechanics. The group has a laboratory at Hervanta campus, which is used in daily basis for various experiments in the field of electromechanics. One of the focus areas of the group is magnetic materials. Magnetic materials can be found from power electronics devices of various kinds, such as power supplies. Experimental characterization of magnetic materials is essential in both research work and industrial applications of magnetic devices. Magnetic hysteresisgraphs are standard measurement tools for the characterization of magnetic materials. NEED While group is able to measure static magnetic hysteresis loops efficiently (especially, since we have the Remagraph C-600 with yoke and potential- and J-coils and Epstein frame), the dynamic side is still lagging behind. While it is a valid approach to use data acquisition tools or oscilloscopes to log measurement data manually, such approaches are very time consuming and require substantial experience. To increase competitiveness and readiness to serve possible industrial collaborations, research activities, and educational purposes, group needs an automatic magnetic AC characterization setup. Thus, this procurement focuses on the purchase of one AC hysteresisgraph and one single strip tester (compatible with the frequency range of the hysteresisgraph). The AC hysteresisgraph should be: • Capable to cater at least a frequency range of 1 Hz – 10 kHz • Inclusive of at least a 1 kVA power supply • Inclusive of the PC software • Capable to implement user defined waveforms CONCLUSION FOR DIRECT AWARD Meeting all the technical requirements and the ability to provide all required components is mandatory for been selected in this procurement process. The Magnet-Physik Remacomp C-2200 satisfies the frequency- and power requirements, while the price of the setup with built-in power amplifiers, a single strip tester, and delivery fits within the budget. With the two power amplifiers, C-2200 has the capability to work with higher currents and is being equipped with an additional safety circuit that switches off if the stator tester heats up too much. Thus, the Remacomp C-2200 is to be procured from the selected supplier. The reasons for the direct award are the synergy benefits obtained by choosing the same brand device that the already existing static hysteresisgraph C-600 is. The rationale is that the Epstein frame we have, and the planned single strip tester, would be used with both devices. Furthermore, there have been discussions about future procurements, such as a standardized single sheet tester, which could be used with both the existing static hysteresisgraph and the planned AC hysteresisgraph if there was a feasible compatibility between the existing and the planned devices. Due to the aforementioned technical requirements and budget limitations, only the specific supplier can be considered. Reasonable alternatives or substitute solutions do not exist, and the absence of competition is not due to an artificial narrowing of purchase conditions. The contracting authority has the right to set a quality level based on its own needs which products or services must implement.