Method for determining moisture content and for drying an insulation

摘要

The method involves measuring a dielectric response of the insulation by the low voltage winding (13) and high voltage winding (14) of electrical equipment such as power transformer (1) and furnace (11). The press board (18) is arranged between the low voltage winding, high voltage winding and furnace. The moisture content of the press board of the insulation is determined based on the dielectric response of the insulation. The transformer is dried in the furnace chamber, based on the measured moisture content of press board. Independent claims are included for the following: (1) device for determining moisture content of component of insulation of electrical equipment; and (2) drying apparatus for drying insulation of electrical equipment.