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SGVA impulse test systems can be used to generate very large impulse voltages simulating lightning strokes and switching surges. SGVA is the largest of the three impulse voltage generator models. Capable of delivering 20 kV to 10'000 kV across a range of models. With 20 kJ or 30 kJ as per stage energy SGVA is useful on HV and UHV network components. Systems are so powerful they can be used to conduct breakdown tests on cables.