SECTION OF ELECTRIC NETWORK

FIELD: electrical engineering, specifically, neutral earthing devices of industrial electric installations of production facilities. SUBSTANCE: extended grounding rod with discrete or continuous leak of current in which capacity construction mainframe of production building or facility connected in...

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Bibliographische Detailangaben
Hauptverfasser:	SOLUJANOV JU.I, BIL'KO B.A, SOLNTSEV V.I, KARJAKIN R.N
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CURRENT COLLECTORS ELECTRICITY GENERATION LINE CONNECTORS
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Beschreibung
Zusammenfassung:	FIELD: electrical engineering, specifically, neutral earthing devices of industrial electric installations of production facilities. SUBSTANCE: extended grounding rod with discrete or continuous leak of current in which capacity construction mainframe of production building or facility connected in parallel to fourth conductor of cable of electric network by zero protection conductor is used as additional zero protection conductor. Cable is laid in zone limited by two circular cylinders which axes coincide with axis of hypothetical equivalent conductor substituting construction mainframe of production building or facility - extended grounding rod. Optimal distance between cable and axis of equivalent conductor is found from condition of minimum of potential-forming current that is illustrated by drawings. EFFECT: diminished potential of neutrally earthed electric installation to safe values independent of speed of response with minimal material and labor expenditures. 2 dwg