Control; Measurement; Disturbance Recorder; Event Log - ABB REM630 Product Manual

ABB
Motor Protection and Control
REM630
Product version: 1.1

5. Control

The IED incorporates local and remote
control functions. The IED offers a number of
freely assignable binary inputs/outputs and
logic circuits for establishing bay control and
interlocking functions for circuit breakers and
motor operated switch-disconnectors. The
IED supports both single and double busbar
substation busbar layouts. The number of
controllable primary apparatuses depends on
the number of available inputs and outputs in
the selected configuration. Besides
conventional hardwired signaling also
GOOSE messaging according to IEC
61850-8-1 can be used for signal interchange
between IEDs to obtain required interlockings.

6. Measurement

The IED continuously measures the phase
currents, the symmetrical components of the
currents and the residual current. The IED
also measures phase and phase-to-phase
voltages, symmetrical components of the
voltages and the residual voltage. In addition,
the IED monitors active and reactive power,
power demand value over a user-selectable
pre-set time frames as well as cumulative
active and reactive energy of both directions.
Line frequency, the thermal overload of the
protected object, and the phase unbalance
value based on the ratio between the
negative sequence and positive sequence
current are also calculated. Cumulative and
averaging calculations utilize the non-volatile
memory available in the IED. Calculated
values are also obtained from the protection
and condition monitoring functions of the IED.
The values measured are accessed locally via
the front-panel user interface of the IED or
remotely via the communication interface of
the IED. The values are also 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 40 analog and 64
binary signal channels. The analog channels
can be set to record the waveform of the
currents and voltage measured. The analog
channels can be set to trigger the recording
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. The binary channels are set to record
external or internal IED signals, for example
the start or operate signals of the protection
functions, 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. In addition, the
disturbance recorder settings include pre- and
post triggering times.
The disturbance recorder can store up to 100
recordings. The number of recordings may
vary depending on the length of the
recording and the number of signals
included. The disturbance recorder controls
the Start and Trip LEDs on the front-panel
user interface. The operation of the LEDs is
fully configurable enabling activation when
one or several criteria, that is, protection
function starting or tripping, are fulfilled.
The recorded information is stored in a non-
volatile memory and can be uploaded for
subsequent fault analysis.

8. Event log

The IED features an event log which enables
logging of event information. The event log
can be configured to log information
according to user pre-defined criteria
including IED signals. To collect sequence-of-
events (SoE) information, the IED
incorporates a non-volatile memory with a
1MRS756977 D
Issued: 2011-05-18
11