Polyphase gas insulated line and coupling module for a polyphase/monophase lead-through in such a line

摘要

The polyphase electric line consists of gas filled metallic sections (12,13) enclosing phase conductors (6A,6B,6C). The sections are joined by a connecting module (11) made from one block and formed from sealed or unsealed flanges (2) and connecting tubes (3). Each connecting tube gives passage to one phase conductor and supports an external phase current transformer (7) An Independent claim is made for the method of fabricating the connecting module