The SWG series surge generators are designed with switchable, multi-stage surge capacitors and three (3) voltage ranges. This design offers a substantial advantage over single stage capacitor units by allowing the user to minimize the surge voltage and maximize the surge energy and fault current. The voltage in each range can be adjusted continuously, and a single pulse release or timed pulse repetition is available. In addition the SWG series offers a 32kV Hipot function as well as a powerful burn capability (up to 320mA). The SWG series can be used for primary fault locating in combination with pinpointing devices. By adding a TDR and a surge pulse coupler the unit can perform Surge Pulse Prelocating. By adding a power filter (ARM® filter) the unit can perform the Arc Reflection Prelocating.Both units are particularly qualified for fault locating on long cables with large cross-sections as well as on PILC cables and duct-bank systems.