APPLICATIONS

Tan Delta (also referred to as "Power Factor") is the ratio of the Resistive Power versus the Capacitor Power of the dielectric material. It is the measure of the quality of the insulation medium. The TD60 provides the testing and commissioning engineer with a high voltage tan delta measuring system suitable for testing cables: XLPE, PE, EPR, PILC and other electrical equipment: capacitors, switchgear, transformers and rotating machines.

Tan Delta testing enables the cable test engineer to detect insulation defects before the cable fails in service. The TD60 is a versatile tan delta measuring system that is directly connected to the H.V. Diagnostics and HVA Series of VLF Test Systems. The tan delta of the test object can be measured quickly and the results stored, thus providing a "signature" of the cable being tested. This enables the cable engineer to make tan delta a routine test and combine this diagnostic test with the normal over voltage pressure "testing" to provide a smart VLF test.

H.V. Diagnostic SARL produce 2 models TD30 for the TD Measurements up to max voltage of 23kVrms (33 kV peak), and the TD60 for TD Measurements up to a max voltage of 44kVrms (or 62kV peak). The TD30/60 is a battery powered system that is diectly connected to the HVA30 Series of VLF Test systems. The TD30/TD60 uses standard C Type akaline batteries which last for 10 hours thus providing the capacity for many tests. The TD30/TD60 is supplied with 10 meters of output cable which is terminated to suit the HVA30/60 test system. The TD30/TD60 is supplied complete with operating software which gives a complete picture of the tan delta measurement together with a real time wave form of the output voltage and current. The Data transmission to a Laptop PC or PDA is via Bluetooth wireless communcation thus eliminating hardwires or fibre optic cables to minimise the hookup time and operator errors.