Generator pulsa untuk uji isolasi

GBS Elektronik rev3 Isolationstests bis 6nF

GBS Prüfpuls rev3 Pulse Generator for Long-term Insulation Testing

The Prüfpuls unit is designed for long-term insulation testing of test specimens with a capacitance of up to 6 nF.

Converter for High-Voltage Test Transformer

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

Pulse Transformer – Control

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

Pulse Transformer Cascade

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

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Breakdown Detection, Testing

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

Manufacturer price approx. €59,500

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