Control; Measurement; Disturbance Recorder; Event Log - ABB RED615 Product Manual

ABB
Line Differential Protection and Control
RED615
Product version: 1.1

5. Control

The IED offers control of one circuit breaker
with dedicated push-buttons for opening and
closing. Interlocking schemes required by
the application are configured with the signal
matrix tool in PCM600.

6. Measurement

The IED continuously measures the phase
currents and the symmetrical components of
the currents. In addition, the IED calculates
the demand values over a user-selectable pre-
set time frame and monitors the differential
phase bias and remote end phase currents.
The values measured can be accessed locally
via the user interface on the IED front panel
or remotely via the communication interface
of the IED. The values can also be accessed
locally or remotely using the web-browser
based user interface.
7. Disturbance recorder
The IED is provided with a disturbance
recorder featuring up to 12 analog and 64
binary signal channels. The analog channels
can be set to record either the waveform or
the trend of the currents and voltage meas-
ured.
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 on the rising or the falling edge of
the binary signal or both.
By default, the binary channels are set to
record external or internal IED signals, e.g.
the start or trip signals of the IED stages, or
external blocking or control signals. Binary
IED signals such as a protection start or
trip signal, or an external IED control signal
over a binary input can be set to trigger the
recording.
The recorded information is stored in a non-
volatile memory and can be uploaded for
subsequent fault analysis.
8. Event log
To collect sequence-of-events (SoE) infor-
mation, the IED incorporates a non-volatile
memory with a capacity of storing up to 50
event codes with associated time stamps. The
non-volatile memory retains its data also if
the IED temporarily loses its auxiliary sup-
ply. The event log facilitates detailed pre- and
post-fault analyses of feeder faults and distur-
bances.
The SoE information can be accessed locally
via the user interface on the IED front panel
or remotely via the communication interface
of the IED. The information can further be
accessed, either locally or remotely, using the
web-browser based user interface.
9. Recorded data
The IED has the capacity to store the records
of four fault events. The records enable the
user to analyze the four most recent power
system events. Each record includes the
phase-, differential-, and bias current values,
the start times of the protection blocks, time
stamp, etc.
1MRS756500 A