| 摘要 |
Disclosed are an optical fiber arc detection sensor by an optical conversion method in a switchgear and a method thereof. The optical fiber arc detection sensor comprises: an infrared optical lens which transmits and outputs an infrared ray selectively generated by arc in the switchgear; an infrared ray reaction phosphor which converts the infrared ray outputted from the infrared optical lens into a visible ray and then outputs the visible ray; an optical fiber which delivers the visible ray outputted from the infrared ray reaction phosphor to an arc detection circuit; and an infrared ray LED which amplifies the visible ray outputted from the infrared ray reaction phosphor and then outputs the amplified visible ray. By the optical fiber arc detection sensor by the optical conversion method in the switchgear and the method thereof, the present invention has the effect of being able to detect arc accurately by removing external disturbance light such as the visible ray and an ultraviolet ray due to a fluorescent light or a sunlight, by being configured to filter the infrared ray generated by the arc mainly in the switchgear and to convert the filtered infrared ray into the visible ray and then to judge arc detection. Also, the present invention has the effect of being able to recognize and cope with the arc generation position accurately and rapidly, by being configured to transmit the visible ray to the arc detection circuit through each separate single optical fiber per each arc detection sensor. |
