TransliterationRukovodyashhie ukazaniya po relejnoj zashhite. Vypusk 2. Stupenchataya tokovaya zashhita nulevoj posledovatelnosti ot zamykanij na zemlju linij 110-220 kv. In Russian
In EnglishGuiding instructions the assignment protection. Issue 2. step overcurrent protection zero order from zamykanij the land lines 110-220 square. In Russian, n/a
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