HVDC Testing Sets are known as the highly portable as well as powerful test devices, are made to produce a DC voltage. These are suitable for the testing of cable accessories, plant, cables, and other installations. On account of high output current and short-circuit proof design, these become suited for the cable fault location. HVDC Testing Sets are functional as the insulation testers, which have been developed to fulfill the demands of high voltage. These are accessible with high accuracy and are suited for the low current applications as well as electrical distribution industries. Also, these are apt for defense and aerospace applications. These are useful for the step-voltage as well as proof tests.