Page 91 - Engine IQflip'21
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Extended Static Range




                   Continuous Genset operation within specified operating range





                                          Old – EN 60034-1/60034-3 (IEC 34-3) conform-ZONE A with +/-5% voltage range

                                          New – Grid Code conform → EN 50160






                                       Voltage [%]                                ZONE „A“
                                                       120



                                                                                                                1
                                                        110                                                        0.95 0.9 0.85 0.8



                               94      96     98       100   102    104     106                                                          cos j
                                                                                                    -0.9  -0.95    0.95 0.9 0.85 0.8
                                                                                                                1
                                                                          Frequency [%]
                                                       90                                    -0,95 at medium voltage
                                                                                             -0,9 at low voltage (Special release)

                                                       80                                   Generator must  operate closer to the stabilty limit

                                                                                            (strong underexcited ) => Danger of pole slip!





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