| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a partial discharge detector which is easily attached to a gas insulated switchgear, without a risk for detachment even when an external force works on signal detection cables etc., and transmits signals stably for a long period. <P>SOLUTION: Two flanges 1A, 2A of metal containers 1, 2 are connected by two or more stud bolts 4 with an insulated spacer 3 interposed therebetween. An antenna body 10, consisting of a plane antenna 11 and an insulated cover 12, is attached to at least a circumference surface of the insulated spacer 3. An L-shaped support plate 13 is firmly fixed to the top surface of the antenna body 10, and the support plate 13 is fixed to an attachment plate 15 and a connecting means 16, or directly to the stud bolts 4. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
