Page 175 - Uninterruptible Power Supplies
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Rotary UPS Systems


                  Mains 2       UNIBLOCK 8  M  G




                                 M
                                   G

                                UNIBLOCK 7
                                        UPS 2   Bus Bar   A  B
                                 M
                                   G
                                                            V     A  B
                                                   A  B
                                UNIBLOCK 6
                        Converter  Battery  M-G Set  V             V


                                                            V
                                 M
                                   G     Isolator 2  V
                Automatic  Bypass 2
                                UNIBLOCK 5




                         Manual  Bypass 2  Manual  Bypass 1  Coupling




                Automatic  Bypass 1                         V      Load

                        Converter  Battery  M-G Set  Isolator 1  V  V




                                                            V             Parallel redundant system with additional static transfer switches.
                                 M
                                   G
                                UNIBLOCK 4
                                                    V
                                 M
                                   G                               Transfer-Switch
                                        UPS 1
                                UNIBLOCK 3
                                 M
                                   G
                                UNIBLOCK 2
                  Mains 1       UNIBLOCK 1  M  G                          Figure 6.4






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