The voltages on the AC overhead transmission lines (OTLs) can be calculated inversely based on the measured electric field around the lines. which will much contribute to the non-contact condition monitoring of OTLs. To more realistically simulate the actual operating state of OTLs in the wild. a refined catenary equation of OTL with consideration of the vertical suspension and horizo... https://bbmbatteryes.shop/product-category/624/