Fault Record Events; Figure 39: Fault Recorder Stop Conditions - GE MiCOM P747 Agile Technical Manual

MiCOM P747
Bit no. Bit Mask (hex)
15 0x00008000
16 0x00010000
17 0x00020000
18 0x00040000
19 0x00080000
20 0x00100000
21 0x00200000
22 0x00400000
23 0x00800000
24 0x01000000
25 0x02000000
26 0x04000000
27 0x08000000
28 0x10000000
29 0x20000000
30 0x40000000
31 0x80000000
2.2.4

FAULT RECORD EVENTS

An event record is created for every fault the IED detects. This is also known as a fault record.
The event type description shown in the Event Text cell for this type of event is always Fault Recorded.
The IED contains a separate register containing the latest fault records. This provides a convenient way of
viewing the latest fault records and saves searching through the event log. You access these fault records
using the Select Fault setting, where fault number 0 is the latest fault.
A fault record is triggered by the Fault REC TRIG signal DDB, which is assigned in the PSL. The fault
recorder records the values of all parameters associated with the fault for the duration of the fault. These
parameters are stored in separate Courier cells, which become visible depending on the type of fault.
The fault recorder stops recording only when:
The Start signal is reset AND the undercurrent is ON OR the Trip signal is reset, as shown below:
Start signal resets
Undercurrent is ON
Trip signal resets
Fault recorder trigger
V01234

Figure 39: Fault recorder stop conditions

The event is logged as soon as the fault recorder stops. The time stamp assigned to the fault corresponds to
the start of the fault. The timestamp assigned to the fault record event corresponds to the time when the fault
recorder stops.
P747-TM-EN-1
P747-TM-EN-1.1
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Chapter 6 - Monitoring and Control
Alarm Description
Fault recorder stops recording
Key:
Internal function
OR gate
AND gate
& 1
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