JPH0481072U

JPH0481072U -

Info

Publication number: JPH0481072U
Application number: JP12558590U
Authority: JP
Priority date: 1990-11-27
Filing date: 1990-11-27
Publication date: 1992-07-15

Description

[Brief explanation of the drawing]

第１図は、この考案に従つてセンサ素子を配電
線に対して配置した状態を示す概略図である。第
２図は、光フアイバ配電線モニタリングセンサを
示す断面図である。第３図は、第２図においてコ
アの取付け状態を示す要部斜視図である。第４図
は、光フアイバ配電線モニタリングセンサにおけ
る光電圧検出部の構造を示す模式図である。第５
図は、従来の光フアイバ配電線モニタリングセン
サにおいて、センサ素子が配電線に配置される状
態を示す概略図である。図において、１は光フアイバ配電線モニタリン
グセンサ、２はセンサヘツド部、３は配電線、４
は浮遊電極、５はコア、６はギヤツプ、７はセン
サブース、８ａ，８ｂ，８ｃおよび８ｄは光フア
イバ、９は光電圧検出部、１０は光磁界検出部、
１１ａおよび１１ｂはリード線、１２は偏光子、
１３は1/4波長板、１４はセンサ素子、１５は検
光子を示す。なお、図中、同一符号は同一または
相当部分を示す。 FIG. 1 is a schematic diagram showing a state in which a sensor element is arranged with respect to a power distribution line according to this invention. FIG. 2 is a cross-sectional view of a fiber optic distribution line monitoring sensor. FIG. 3 is a perspective view of a main part in FIG. 2 showing the state in which the core is attached. FIG. 4 is a schematic diagram showing the structure of a photovoltage detection section in an optical fiber distribution line monitoring sensor. Fifth
FIG. 1 is a schematic diagram showing a state in which sensor elements are arranged on a power distribution line in a conventional fiber optic power distribution line monitoring sensor. In the figure, 1 is an optical fiber distribution line monitoring sensor, 2 is a sensor head, 3 is a distribution line, and 4 is an optical fiber distribution line monitoring sensor.
is a floating electrode, 5 is a core, 6 is a gap, 7 is a sensor booth, 8a, 8b, 8c and 8d are optical fibers, 9 is a photovoltage detection section, 10 is a photomagnetic field detection section,
11a and 11b are lead wires, 12 is a polarizer,
13 is a 1/4 wavelength plate, 14 is a sensor element, and 15 is an analyzer. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] A sensor head section that is attached to a distribution line and has a pair of floating electrodes for dividing the voltage of the distribution line; and a sensor head section that applies the voltage divided by the pair of floating electrodes. , a sensor element for measuring the voltage of the distribution line by an electro-optic effect, a light source for irradiating the sensor element with light, a detector for detecting the light transmitted through the sensor element, and the light source. A fiber optic distribution line monitoring sensor comprising: a first optical fiber that transmits light from the sensor element to the sensor element; and a second optical fiber that transmits light transmitted through the sensor element to the detector; An optical fiber distribution line monitoring sensor, characterized in that the sensor element is arranged so that the direction of light passing through the distribution line is parallel to the longitudinal direction of the distribution line.