LV generator protection - engineering site - Schneider Electric

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ImplementationThe Generator Sets normally operate independently without connection to themains supply, but can be connected if necessary (parallel-connected GeneratorSet) in the case of high power requirements.E79354EMVMVGSGSLVLVNCNCNCNC: normally closed.NO: normally open.Figure 2: Block diagram of a high power LV replacement GS.5
The Generator Set andElectrical 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 LV - if it is low or medium power - anddirectly supply a LV/MV step-up transformer. In this case, we can consider thatthe Generator Set management functions, excluding generator protection, are atMV level (Generator Set + MV/LV transformer global function).E79352EHVNCLVGSHVbusbarLVNC: normally closed.NO: normally open.Figure 3: Block diagram of a LV production GS with step-up transformer.6
Page 1 and 2: M M M MLow Voltage Expert Guides N
Page 4 and 5: In shortGenerator Sets (GS) are use
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Page 10 and 11: E79360EElectrical utilityHV incomer
Page 12 and 13: Replacement SourceThe Set’s purpo
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Page 41 and 42: Summary5.1.DiagramA typical example
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CTCDCE6.3. Communicationcharacteris
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6.3. Caractéristiquesde la communi
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LV generator protection - engineering site - Schneider Electric

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