Surge Tester ST 3820L In addition to surge testing, the test spectrum of the ST 3820L surge tester also includes insulation Resistance Measurement and DC High Voltage testing. It was specially developed for integration into automated test systems and for use in the laboratory. Thanks to the extremely steep voltage rise slope and the various surge capacities available as an option, the ST 3820L is ideally suited for both conventional winding goods (e.g. wound stators) and winding goods in the e-mobility sector (e.g. hairpin stators). The ST 3820L is ideal for detecting short circuits and insulation faults within a winding even before the fault affects the electrical specifications of the device under test. Surge Tester ST 3820L | 11.2025 Subject to change and error. Please note: that in Europe, we use a comma as the separator, while in the USA, a period is used.

Subject to change and error. Please note: that in Europe, we use a comma as the separator, while in the USA, a period is used.