GE Multilin G60 Generator Management Relay 9-119 APPLICATION OF SETTINGS 9.1 SETTING EXAMPLE99.1.13 FREQUENCYThe pickup and delay settings are dependent on operating practices and system characteristics. In this example, two over-frequency and two underfrequency elements will be used. The elements will be blocked when offline. Underfrequency willinitiate a trip. Overfrequency will alarm only. Either source may be assigned.Make the following changes in EnerVista UR Setup or through the SETTINGS !" CONTROL ELEMENTS !" UNDERFRE-QUENCY ! UNDERFREQUENCY 1(2) and the SETTINGS !" CONTROL ELEMENTS !" OVERFREQUENCY ! OVERFREQUENCY 1(2)menus:9.1.14 ACCIDENTAL ENERGIZATIONIn this example, the ACCDNT ENRG ARMING MODE is selected as ìUV and Offlineî. The ACCDNT ENRG OC PICKUP settingshould be set at Ω the minimum expected fault current. In this case, 1.0 pu (8000 A primary) is selected. In cases where itis possible to re-energize the machine through its auxiliary transformer, a lower setting may be required. The UV pickupsetting must be set above the maximum expected fault voltage.Make the following changes in EnerVista UR Setup or through the SETTINGS !" GROUPED ELEMENTS !" SETTING GROUP1 !" ACCIDENTAL ENERGIZATION menu:
