ABB RELION 670 Series Product Manual page 22

Bay control REC670 2.1 IEC
Switch controller SCSWI
The Switch controller (SCSWI) initializes and supervises
all functions to properly select and operate switching
primary apparatuses. The Switch controller may handle
and operate on one three-phase device or up to three
one-phase devices.
Circuit breaker SXCBR
The purpose of Circuit breaker (SXCBR) is to provide the
actual status of positions and to perform the control
operations, that is, pass all the commands to primary
apparatuses in the form of circuit breakers via binary
output boards and to supervise the switching operation
and position.
Circuit switch SXSWI
The purpose of Circuit switch (SXSWI) function is to
provide the actual status of positions and to perform
the control operations, that is, pass all the commands to
primary apparatuses in the form of disconnectors or
earthing switches via binary output boards and to
supervise the switching operation and position.
Reservation function QCRSV
The purpose of the reservation function is primarily to
transfer interlocking information between IEDs in a safe
way and to prevent double operation in a bay,
switchyard part, or complete substation.
Reservation input RESIN
The Reservation input (RESIN) function receives the
reservation information from other bays. The number of
instances is the same as the number of involved bays
(up to 60 instances are available).
Bay control QCBAY
The Bay control QCBAY function is used together with
Local remote and local remote control functions to
handle the selection of the operator place per bay.
QCBAY also provides blocking functions that can be
distributed to different apparatuses within the bay.
Local remote LOCREM/Local remote control
LOCREMCTRL
The signals from the local HMI or from an external local/
remote switch are connected via the function blocks
LOCREM and LOCREMCTRL to the Bay control QCBAY
function block. The parameter
block LOCREM is set to choose if the switch signals are
coming from the local HMI or from an external hardware
switch connected via binary inputs.
Voltage control TR1ATCC, TR8ATCC, TCMYLTC and
TCLYLTC
The voltage control functions, Automatic voltage control
for tap changer, single control TR1ATCC, Automatic
voltage control for tap changer, parallel control
TR8ATCC and Tap changer control and supervision, 6
22
M13486-3 v7
M13489-3 v6
M16492-3 v6
M13506-3 v4
M16501-3 v5
M13447-3 v7
M17086-3 v8
ControlMode in function
M5864-3 v11
binary inputs TCMYLTC as well as Tap changer control
and supervision, 32 binary inputs TCLYLTC are used for
control of power transformers with a on-load tap
changer. The functions provide automatic regulation of
the voltage on the secondary side of transformers or
alternatively on a load point further out in the network.
Control of a single transformer, as well as control of up
to eight transformers in parallel is possible. For parallel
control of power transformers, three alternative
methods are available, the master-follower method, the
circulating current method and the reverse reactance
method. The first two methods require exchange of
information between the parallel transformers and this
is provided for within IEC 61850-8-1.
Voltage control includes many extra features such as
possibility of to avoid simultaneous tapping of parallel
transformers, hot stand by regulation of a transformer
in a group which regulates it to a correct tap position
even though the LV CB is open, compensation for a
possible capacitor bank on the LV side bay of a
transformer, extensive tap changer monitoring including
contact wear and hunting detection, monitoring of the
power flow in the transformer so that for example, the
voltage control can be blocked if the power reverses etc.
Logic rotating switch for function selection and
LHMI presentation SLGAPC
The logic rotating switch for function selection and
LHMI presentation SLGAPC (or the selector switch
function block) is used to get an enhanced selector
switch functionality compared to the one provided by a
hardware selector switch. Hardware selector switches
are used extensively by utilities, in order to have
different functions operating on pre-set values.
Hardware switches are however sources for
maintenance issues, lower system reliability and an
extended purchase portfolio. The selector switch
function eliminates all these problems.
Selector mini switch VSGAPC
The Selector mini switch VSGAPC function block is a
multipurpose function used for a variety of applications,
as a general purpose switch.
VSGAPC can be controlled from the menu or from a
symbol on the single line diagram (SLD) on the local HMI.
Generic communication function for Double Point
indication DPGAPC
Generic communication function for Double Point
indication (DPGAPC) function block is used to send
double point position indications to other systems,
equipment or functions in the substation through IEC
61850-8-1 or other communication protocols. It is
especially intended to be used in the interlocking
station-wide logics.
1MRK 511 361-BEN D
SEMOD114908-4 v9
SEMOD158756-5 v7
SEMOD55850-5 v7
ABB