Voltage tester VoltageAnalyzer

insulationsurge impulsepartial discharge

Precision measurement of the surge test directly at the winding. • consideration of the influence of the measuring leads • ideal for fast surge voltage rise time • super fast sampling rate • high measuring resolution • plus simultaneous PD measurement with passive or active antenna • integrated switchover between the test leads The VoltageAnalyzer serves to measure all kinds of high-voltages. The frequency range covers DC voltages up to very high pulse frequencies in the MHz-range. This it is perfectly suited for high voltage, surge voltage and partial discharge measurements. The active test probe measures voltages and voltage peaks exactly there, where they appear. This may be e.g. in the motor´s terminal board. These voltage peaks may be caused by a frequency converter or by harmonics caused by the lead. Voltage measurement at surge voltage and partial discharge It happens, that the voltage internally measured by the surge voltage tester does not exactly correspond to the test object´s voltage. This is due to unavoidable inductances in measuring leads and capacities between themn which influence the surge signal´s voltage course on the way to the test object. This especially occurs the higher the surge impulse rises. However, to be able to precisely measure the partial discharge inception voltage (PDIV) connected to the motor´s terminal board, a direct measurement at the terminal board with the active test probe is required. For exact this purpose, the VoltageAnalyzer has been developed! The voltage measurement is carried out between the same phases used for the surge voltage test.