Partial discharge monitor device for dry type transformer
专利汇可以提供Partial discharge monitor device for dry type transformer专利检索，专利查询，专利分析的服务。并且PURPOSE:To provide a partial discharge monitor equipment which is free from power interruption, immune to noises and of a high detection sensitivity by connecting a coupling capacitor and a partial discharge detecting shunt to the terminal of a dry type transformer. CONSTITUTION:The partial discharge generated in a winding 8 can be detected by means of a shunt 3, since a pulse current DELTAI of a pulse voltage DELTAV generated due to the partial discharge occurred in the winding 8 flows through a closed circuit comprising an electrostatic capacity 12 provided within the winding 8, a coupling capacitor 10 functioning also as a supporting insulator and a detecting shunt 3 as shown by the arrow. With the electrostatic capacity of the coupling capacitor around 200- 1,000pF, the damping of the partial discharge detection sensitivity can be improved to a level within 1/10 of the detection sensitivity at the terminal of the transformer. The detected signal is transmitted to a gate circuit 4 where only the pulses of a voltage phase in which objective partial discharge is caused are picked up.，下面是Partial discharge monitor device for dry type transformer专利的具体信息内容。
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