HT Cable Diagnosis
Electrical utilities have been relying on underground cables for a very long time and offer good substitute of overhead lines in transmitting electrical power safely. With the development in insulation material used for cables the operating voltages have also increased for cable with underground as well as underwater.
During the lifecycle of cable it goes through various service conditions and stress caused by thermal, chemical, and mechanical reasons which deteriorates the insulation quality of main insulation of cables and accessories.
Periodic assessment of cable insulation quality is possible by proven technique of measuring dissipation factor and partial discharge can be deployed with VLF and Power frequency damped AC voltages. ohv diagnostics offers very robust and well-engineered damped AC cable diagnostic and test systems world over.