Welcome to HVSS Design & Commissioning Services We are pioneers in the field of design and commissioning GIS s/s, Outdoor s/s, Relay and Control Panels, Reactors, Generators and Transformers. We undertake Testing & commissioning of Turn Key HV & Extra HV Sub-Stations upto 400KV, Relay Setting/ CT burden/ VT Burden/ DC Burden Verifications / Testing, Routine Annual Testing of S/S Equipments including control & protection (Relay Testing) system, Protection upgrading, Witnessing of over all commissioning.