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2 Maszyny Elektryczne : zeszyty problemowe

2 Zieliński W.

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Przykład zastosowania optoelektronicznego analizatora iskrzenia do badania komutacji maszyn prądu stałego

Zieliński W.

Maszyny Elektryczne : zeszyty problemowe

2006

Nr 75

213-216

The paper presents example application of an optoelectronic analyzer of sparking to test commutation on a physical model of a typical d.c. machine. Prior to the sparking measurements mechanical testing of the commutator geometry taking into account irregularities of each individual bar has been performed. Next, commutation testing has been performed with the application of the proposed algorithms for sparking evaluation. Testing of commutation properties of a d.c. machine has been performed at feeding conditions that simulated feeding by a static frequency changer. Results of measurements and calculations have been presented in graphical and numerical forms.

Monitorowanie iskrzenia styku szczotka-komutator w maszynach prądu stałego za pomocą optoelektronicznego analizatora iskrzenia

Zieliński W.

Maszyny Elektryczne : zeszyty problemowe

2003

Nr 65

149-152

Computer aided optoelectronic analyzer of sparking is a device to be used for the identification of sparking of individual commutator sections, for the registration of sparking intensity, and for direct processing of the registered signals. Test results obtained by means of the analyzer confronted witch numerical calculations of currents in commutating coils ( detailed parameters of a machine known ) confirm good applicability of the analyzer to comparatively "objective" assessment of commutation quality of d.c. machines. Meter circuit of the analyzer that operates contactlees with regard to the tested machine ensures its immunity to parasite interference of electromagnetic character caused by commutation phenomenon. Electronic systems and wide-band amplifiers process the observed spark light spectrum into output electrical signals proportionally to the sparking intensity. The spectrum of registered light signals well corresponds to the impression of human eyes observing brush sparking that used to be the basis for subjective assessment of commutation quality.