LV generator protection - engineering site - Schneider Electric
LV generator protection - engineering site - Schneider Electric
LV generator protection - engineering site - Schneider Electric
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The Generator Set and<strong>Electric</strong>al Distribution1.1.2. Energy productionPrincipleThe Generator Set operates in the “Main” operating mode: it must be able towithstand operating overloads:b one hour overloadb one hour overload every 12 hours (Prime Power)For example: independent energy production for a cement works.OperationPowers are normally high or very high (up to several tens of MVA).Note 1: The production source Set can be <strong>LV</strong> - if it is low or medium power - anddirectly supply a <strong>LV</strong>/MV step-up transformer. In this case, we can consider thatthe Generator Set management functions, excluding <strong>generator</strong> <strong>protection</strong>, are atMV level (Generator Set + MV/<strong>LV</strong> transformer global function).E79352EHVNC<strong>LV</strong>GSHVbusbar<strong>LV</strong>NC: normally closed.NO: normally open.Figure 3: Block diagram of a <strong>LV</strong> production GS with step-up transformer.6
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