Pulsni generator za ispitivanje izolacije

GBS Elektronik rev3 Isolationstests bis 6nF

GBS Prüfpuls rev3 Pulse Generator for Long-Term Insulation Testing

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

Converter for High Voltage Test Transformer

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

Pulse Transformer – Control

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

Pulse Transformer Cascade

· Output transformers in 5-stage cascaded circuit
· Total transformation ratio selectable via taps: 1:7.7, 1:10, or 1:15
· Maximum output voltage 15 kV with possible load capacitance of: * 6 nF with a pulse width of 73 μs at a repetition rate of 2.5 kHz * 10 nF with a pulse width of 103 μs at a repetition rate of 1.25 kHz
· 1:1000 parallel voltage divider
· Overvoltage limitation at approx. 20–23 kV via parallel spark gaps
· Thermistor for overtemperature detection in 1st transformer stage
· Ground-side current measuring socket 100 mV/A

Breakdown Detection, Testing

· If the maximum bridge currents for transformer control or the max. currents of the full-bridge power supplies are exceeded, high voltage is switched off
· The device features a resettable operating hours counter to determine test duration

Manufacturer price approx. €59,500

Financing through our bank is also possible.
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