| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce the number of components in an optical VT apparatus for measuring a voltage at a main circuit in an electrical device, and reduce a size. <P>SOLUTION: An apparatus includes: an electro-optical element 2 polarized by an electric field, and measuring the voltage; an optical cable 4 connected to the electro-optical element 2 at one end; an electrode 5 disposed so as to be separated from the electro-optical element 2, and connected to a central conductor 7 connected to a main circuit in the electrical device; an insulating layer 3 formed so as to be integrated with the electro-optical element 2, the optical cable 4 and the electrode 5 by molding, and having a first interfacial connection 3b closely contacting a second interfacial connection 8b of the electrical device; and a grounding layer 6 disposed on the periphery of the insulating layer 3. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
