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US 11,112,446 B2Granted
Circuit arrangement for a high-voltage test installation
AssigneeSiemens Aktiengesellschaft
InventorMarkus Bock
Life of this patent
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Abstract
A circuit arrangement for a high-voltage test system has an electronic power converter unit for generating an excitation AC voltage. The AC voltage has an adjustable fundamental frequency and a frequency spectrum. The amplitudes in the frequency spectrum within a given frequency range are lower than a predefinable amplitude limit.
Claims12
A circuit arrangement for a high-voltage test installation, the circuit arrangement comprising:
- an electronic converter unit for generating an excitation AC voltage, the AC voltage having an adjustable fundamental frequency and a frequency spectrum with amplitudes below an amplitude threshold value within a frequency range containing frequencies from 30 kHz to 1 MHz, wherein the amplitudes, which are below the amplitude threshold value, do not interfere with partial discharge measurements;
- said electronic converter unit being a four-quadrant amplifier or a two-quadrant amplifier;
- wherein the frequency spectrum has amplitudes that are essential only at a fundamental frequency thereof and at a limited number of multiples of the fundamental frequency.
Dependencies are inferred from the claim text.