GBS Prüfpuls rev3 脉冲发生器，用于最高至 6nF 的长时间绝缘测试

GBS Elektronik rev3 Isolationstests bis 6nF

GBS Test Pulse rev3 Pulse Generator for Long-Term Insulation Tests
The Test Pulse system is designed for long-term insulation tests on 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 a full-bridge.
* Converter voltage adjustable from 0-600V, Imax=2.6A, maximum power 1.3kW
* Pulse current limitation 110A (shutdown threshold)

Pulse Transformer – Drive

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

Pulse Transformer Cascade

* Output transformers in a 5-stage cascaded circuit.
* Total turns ratio selectable as 1:7.7, 1:10, or 1:15 via taps.
* Maximum output voltage 15kV with possible load capacitances of: * 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 protection at approximately 20-23 kV via parallel spark gaps
* Thermistor for overtemperature detection in the 1st transformer stage.
* Earth-side current measurement socket 100 mV/A.
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Breakdown Detection, Testing

* If the maximum bridge currents for the transformer drives or the maximum currents of the bridge power supplies are exceeded, the high voltage is switched off.
* The device has a resettable operating hour counter to determine the test time.

Manufacturer's price approx. €59,500.00

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