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Please describe its function more precise. Why can an instrument transformer not be used?

Meanwhile already after the tower where the 380 kV-line Kupferzell-Rittershausen and the 380 kV-line Höpfingen-Rittershausen merge in order to run to Grafenrheinfeld the installation work for a further circuit have started, but in a very unusual manner, as one installed for the new circuit only one ...

On the 380 kV-powerline Kupferzell-Stalldorf-Rittershausen is already the originally missing second 380 kV-circuit installed. This picture shows the last tower of this line, which carries the number 138, before it merges with the 380 kV-powerline from Höpfingen in order to run to Grafenrheinfeld.

What is this for a device on a conductor of the 110 kV-line Höpfingen-Tauberbischofsheim-Königshofen before the end of this line in Königshofen substation?

Tower 52 of the 110 kV-powerline Stalldorf-Königshofen is the last tower of this line before it ends in Königshofen substation

Tower 51 of 110 kV-powerline Stalldorf-Königshofen. It is the penultimate tower of this line before its end in Königshofen substation. Originally on the towers of the 110 kV-powerline Stalldorf-Königshofen only one circuit was installed. The second circuit on the right side of the tower was ...

Tower 56 of 110 kV-powerline Oberjettingen-Merklingen southeast of Althengstett with the setting constellation of Taurus in the background. The bright star-like object is the planet Jupiter.

Powerlines in Freiberg am Neckar north of Ludwigsburg-Hoheneck substation in the dawn. The bright star is the planet Venus.

Not all powerlines in China may belong to the power grid. There is a facility called WEM, which uses powerlines as "antenna feeder" (its antenna is the earth!).
Unfurtunately its exact location is still a secret. More information about WEM can be found on https://www.sciencedirect.com/science ...

A few hundred metres southward the historic and today unused powerline Hoheneck-Herberingen changes its direction from southern in eastern direction