NOTE 1 Based on the chosen banding threshold it is considered necessary to include generating modules classified as type A. Exemption is only acceptable for CHP and generating units based on rotating machinery below 50 kW as EN 50465 for gas appliance requests disconnection in case of under voltage.The requirements apply to all kinds of faults (1ph, 2ph and 3ph).NOTE 2 A more distinctive differentiation for 1ph, 2ph and 3ph faults is under consideration.NOTE 3 These requirements are independent of the interface protection settings. Disconnection settings of the interface protection relay will always overrule technical capabilities. So, whether the generating plant will stay connected or not will also depend upon those settings.NOTE 4 The FRT curves in Figure 6, Figure 7 and Figure 8 describe the minimum requirements for continued connection of the generating plant to the grid. They are not designed for parameterising the interface protection.