Electric Cables

Testing of Cables

Testing of Cables High voltage power cables have proved quite useful, especially in the case of HV d.c. transmission. Underground distribution using cables not only adds to the aesthetic looks of a metropolitan city but it provides better environments and more reliable supply to the consumers. Preparation of Cable Sample The cable sample has to […]

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Tan Delta Testing of Cables

A perfect cable can be electrically modeled by a single capacitor. The longer the cable, the larger the capacitance of this capacitor. As the insulation of the cable degrades, losses in this capacitor increase which can be measured by tan delta testing of the cable.  The measurements can be compared with previous test measurements and

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