LV generator protection - engineering site - Schneider Electric

The Generator Set andElectrical Distribution1.3.Services to be providedAccording to the choice of customer or the type of risk anticipated, the GeneratorSet is defined in priority as:Safety Source onlyA separate Set manages the Replacement Source function. Safety regulations,mainly concerning buildings open to the general public such as hospitals, publicbuildings, etc. define in detail electrical distribution for safety equipment(emergency lighting, fume extraction, etc.).These regulations aim at:b providing fire protection (defective main source, supply of extinguishing means)b evacuating people in the best possible conditions (emergency lighting,evacuation path, elevator supply, etc.).The Safety Set only supplies the loads necessary for the Safety function.E79361EElectrical safety supplySafetysourceGSReplacementsourceMainsourceNCNCNCSafetyswitchboardMain safetyswitchboardSafetyMainNCSemi-lighting1Fumes extraction, elevator,water supply, telecommunication,other specific equipmentSemi-lighting2OtherinstallationSafetyMain or replacementNC: normally closed.NO: normally open.Figure 7: Block diagram of an installation with a replacement GS and a safety GS.Note: the various switches can be replaced by circuit-breakers if required bytheir need for protection.10