Technical Revision History; Disturbance Recorder Rdre; Identification; Functionality - ABB Relion SMU615 Technical Manual

1MRS758407 B
7.1.10.7
7.2
7.2.1
7.2.2
7.2.2.1
SMU615
Technical Manual

Technical revision history

Table 248: PEMMXU Technical revision history
Technical revision
B
C
D

Disturbance recorder RDRE

Identification

Function description
Disturbance recorder

Functionality

The merging unit is provided with a disturbance recorder featuring up to 12 analog and
64 binary signal channels.
The analog channels can be set to trigger the recording function when the measured
value falls below or exceeds the set values. The binary signal channels can be set to
start a recording either on the rising or the falling edge of the binary signal or on both.
By default, the binary channels are set to record external or internal signals, for
example, the start or trip signals of the merging unit stages, or external blocking or
control signals. Binary signals, such as protection start and trip signals, or an external
control signal via a binary input, can be set to trigger the recording. Recorded
information is stored in a nonvolatile memory and can be uploaded for subsequent
fault analysis.

Recorded analog inputs

The user can map any analog signal type of the merging unit to each analog channel
of the disturbance recorder by setting the Channel selection parameter of the
corresponding analog channel. In addition, the user can enable or disable each analog
channel of the disturbance recorder by setting the Operation parameter of the
corresponding analog channel to "on" or "off".
All analog channels of the disturbance recorder that are enabled and have a valid
signal type mapped are included in the recording.
Measurement functions
Change
Demand values added to Monitored data.
Recorded data added to store minimum and
maximum demand values with timestamps.
Internal improvement.
Internal improvement.
IEC 61850 IEC 60617
identification identification
RDRE DR
Section 7
ANSI/IEEE C37.2
device number
DFR
201