Impulzni generator za test izolacije

GBS Elektronik rev3 Isolationstests bis 6nF

GBS Prüfpuls rev3 Pulse Generator for Long-Term Insulation Tests

The Prüfpuls setup is designed for long-duration insulation tests on test objects with capacitance up to 6 nF.

Inverter for High Voltage Test Transformer

· Internal sine wave generator: 50-200Hz.
· Pulse width modulation at 16-24kHz of the sine wave via full bridge.
· Inverter voltage adjustable 0-600V, Imax=2.6A, maximum power 1.3kW
· Pulse current limitation 110A (cut-off threshold)

Pulse Transformer – Control

· Control via full bridge
· Full bridge power supply adjustable 0-1000V, max. 1.3A
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· Pulse current limitation 100A (cut-off threshold)
· Pulse width 20-120μs, nominal 94μs, adjustable
· 2 selectable series inductances 150μH, 300μH to adapt the pulse width or rise times to the load capacitance and voltage
· Pulse repetition frequency 0.1 – 2.5 kHz, adjustable
· Polarity: adjustable positive, negative or alternating depending on the polarity of the sine signal
· Cosine-shaped pulse at transformer output

Pulse Transformer Cascade

· Output transformers in 5-stage cascaded configuration
· Overall turns ratio selectable via taps as 1:7.7, 1:10 or 1:15
· Maximum output voltage 15kV at the following possible load capacitances: * 6nF with a pulse width of 73μs at a repetition frequency of 2.5kHz * 10nF with a pulse width of 103μs at a repetition frequency of 1.25kHz
· Voltage divider 1:1000 in parallel
· Overvoltage limitation at approx. 20-23 kV via parallel spark gaps
· Thermistor for overtemperature detection in the first transformer stage
· Earth-side current measurement socket 100 mV/A

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Breakdown Detection, Testing

· If the maximum bridge currents for transformer controls or for the bridge power supplies are exceeded, the high voltage is switched off
· The device is equipped with a resettable hour meter to determine the test period

Manufacturer's price approx. €59,500

Financing through our bank is also possible.
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