Application of lightning optical path monitoring system on 500kV transmission lines in mountain area

Design of conception on lightning monitoring system for strikes to structures

“…Also, it should bring to readiness the MS components and pro vide recording of strike position at the object or in its vicinity, and transmission and saving of related data. An example of existing MS, which have video registration [13], is presented in Fig. 1.…”

“…Such remote registration stations typically have an autonomous power supply. Regarding drawbacks of existing MS having video captur ing of strike point, the limited characteristics of ca meras can be indicated [13]. In particular, when one using typical regular frame rate of cameras (25…50 fps) and their auto matic settings of light sensitivity and exposure, a relatively reliable registration is possible only for discharges with present continuous current component.…”

“…As mentioned, for objects having large dimensions, lo cal lightning monitoring systems are developed in recent years, which contain already video cameras (highspeed and regular) and sensors, including those for triggering recording process [12][13][14].…”

“…One of such systems, including video cameras, was designed in China and tested at 500kV transmis sion line ( Fig. 1) [13]. The operation principle of such system is relatively simple.…”

“…Because of this, versions of TWS, which include video cameras for an accurate registration of lightning strike point at the object, are now actively developed in several countries. In particular, some test lightning monitoring systems (MS) are already introduced in China and Japan, which are based on the use of video cameras [11][12][13][14] and allow effectively estimate possible damages in real time (data transmission by 3G network). These systems are still can be considered as a concept approach only, not a full value commercial product, and they require further development.…”