Some selected analog values in the relay are available as so called ASDU 4 or TypeID 4 analog Class 1 events. Depending on the supported applications, the values may include the registered maximum current and voltage values during a fault and fault locator registrations. For example, also tap changer position values can be obtained through TypeID 4.
Note: There is no internal prioritization between TypeID 4 and indication events in the IED. Enabling events, for example for fault record function, can cause considerable delay in indication event reporting. It should be carefully considered which TypeID 4 data is included in event reporting by setting “TypeId4 in use” in the Communication Management tool.
Note: Fault record data can be configured to be generated only at operation situations. At operation, the circuit breaker opens, and after that, no more protection or indication events are generated by the IED. In such case, the trailing fault record data does not overload the event buffer.