ABB Relion 670 Series Technical Reference Manual page 956

Section 15
Monitoring
15.7.2
950
• Trip value recorder
• Disturbance recorder
• Fault locator
The Disturbance report function is characterized by great flexibility regarding
configuration, initiating conditions, recording times, and large storage capacity.
A disturbance is defined as an activation of an input to the AxRADR or BxRBDR
function blocks, which are set to trigger the disturbance recorder. All signals from start
of pre-fault time to the end of post-fault time will be included in the recording.
Every disturbance report recording is saved in the IED in the standard Comtrade
format. The same applies to all events, which are continuously saved in a ring-buffer.
The local HMI is used to get information about the recordings. The disturbance report
files may be uploaded to PCM600 for further analysis using the disturbance handling
tool.
Principle of operation
Disturbance report DRPRDRE is a common name for several functions to supply the
operator, analysis engineer, and so on, with sufficient information about events in the
system.
The functions included in the disturbance report are:
• Sequential of events (SOE)
• Indications (IND)
• Event recorder (ER)
• Trip value recorder(TVR)
• Disturbance recorder (DR)
Figure 472 shows the relations between Disturbance Report, included functions and
function blocks. Sequential of events (SOE), Event recorder (ER) and Indications
(IND) uses information from the binary input function blocks (BxRBDR). Trip value
recorder (TVR) uses analog information from the analog input function blocks
(AxRADR). Disturbance recorder DRPRDRE acquires information from both
AxRADR and BxRBDR.
1MRK505222-UUS C
Technical reference manual