Abstract

In this paper a method for manufacturing capacitors in which the insulation is made from a mixture of rutilium (TiO 2) and glass powders, is discussed. The dependence of electric permittivity and losses on the content of TiO 2 in the dielectric, are tested. Much attention has been paid to the capacitors containing 90 per cent of TiO 2 (in respect of weight) in their insulation which have been protected with a silicone varnish against ambient moisture effects. The conductivity of their insulation as a function of electric field intensity and ambient temperature has also been measured. The capacity changes and tan δ have been defined in a wide frequency band and with respect to temperature. The capacitor response in long periods of operation under various ambient conditions has been checked.

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