Three-zone definite distance protection will be used in Pakistan after successful application on British Railways and diagrammatic illustration of principle of action; circuit diagram used for directional definite-distance protection; possible development of track system and protection arrangement using solenoid-controlled interrupter switches.
Protection of A.C. Electrified lines
Ry Gaz
Railway Gazette ; 122 , n 20
1966
4 pages
Article (Journal)
English
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