FIELD: electricity.
SUBSTANCE: inspection method of quality of transformer paper insulation consists in transfer by means of optic fibre cables of reflected radiation from transformer insulation in order to determine reflection factor R1742 at wave length of 1742 cm-1 and calculation of polymerisation degree (PD). Evaluation of PD is performed with respect to paper insulation of transformer, without switching off the transformer by using NDT methods, and PD is calculated by determining radiation reflection factor R1742 and its dependence on PD.
EFFECT: performance of measurements in wide range of frequencies allows improving accuracy of evaluation of quality of transformer paper insulation.
2 dwg
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