V. CONCLUSIONS
Experimental set on development of experimental kit on variable speed drive typed harmonic current passive filter for undergraduate study was proposed. The experiment topics were defined. After that, the objective analysis was applied to define experimental content of the proposed set. After finished this objective analysis, experimental set construction and skill practice functions were designed. The experimental circuits were yielded from design of these construction and practice functions. The laboratory sheets were designed for covering all of objectives and were divided as 2 sheets. Each sheet was consisted of experimental topics, objectives, experimental tools and devices, experimental digital circuit, experimental procedures, experimental questions, and conclusion. To evaluate the proposed set, the circuit experiments of 1 kW of VSD installed motor coupling to DC 1 kW of generator following designed experiment procedures were applied. From the experimental results, all objectives can be complied. The filtering waveforms were close to sinusoidal.