Current Protection - ABB REC650 Product Manual

ABB
Bay control REC650 ANSI
Product version: 1.2
VSGGIO can be controlled from the menu or from a
symbol on the single line diagram (SLD) on the local
HMI.
IEC 61850 generic communication I/O functions
DPGGIO
The IEC 61850 generic communication I/O
functions (DPGGIO) function block is used to send
double indications to other systems or equipment in
the substation. It is especially used in the
interlocking and reservation station-wide logics.
Single point generic control 8 signals SPC8GGIO
The Single point generic control 8 signals
(SPC8GGIO) function block is a collection of 8
single point commands, designed to bring in
commands from REMOTE (SCADA) to those parts
of the logic configuration that do not need extensive
command receiving functionality (for example,
SCSWI). In this way, simple commands can be sent
directly to the IED outputs, without confirmation.
Confirmation (status) of the result of the commands
is supposed to be achieved by other means, such
as binary inputs and SPGGIO function blocks. The
commands can be pulsed or steady.
AutomationBits AUTOBITS
The Automation bits function (AUTOBITS) is used to
configure the DNP3 protocol command handling.

5. Current protection

Instantaneous phase overcurrent protection, 3-
phase output PHPIOC (50)
The instantaneous three phase overcurrent function
has a low transient overreach and short tripping
time to allow use as a high set short-circuit
protection function.
Four step phase overcurrent protection, 3-phase
output OC4PTOC (51/67)
The four step phase overcurrent protection function
OC4PTOC (51/67) has independent inverse time
delay settings for step 1 and 4. Step 2 and 3 are
always definite time delayed.
All IEC and ANSI inverse time characteristics are
available.
The directional function is voltage polarized with
memory. The function can be set to be directional
or non-directional independently for each of the
steps.
A 2nd harmonic blocking can be set individually for
each step.
Instantaneous residual overcurrent protection
EFPIOC (50N)
The Instantaneous residual overcurrent protection
EFPIOC (50N) has a low transient overreach and
short tripping times to allow the use for
instantaneous ground-fault protection, with the
reach limited to less than the typical eighty percent
of the line at minimum source impedance. EFPIOC
(50N) can be configured to measure the residual
current from the three-phase current inputs or the
current from a separate current input. EFPIOC (50N)
can be blocked by activating the input BLOCK.
Four step residual overcurrent protection, zero
sequence and negative sequence direction
EF4PTOC (51N_67N)
The four step residual overcurrent protection, zero
or negative sequence direction (EF4PTOC, 51N/
67N) has independent inverse time delay settings
for step 1 and 4. Step 2 and 3 are always definite
time delayed.
All IEC and ANSI inverse time characteristics are
available.
EF4PTOC (51N/67N) can be set directional or non-
directional independently for each of the steps.
The directional part of the function can be set to
operate on following combinations:
• Directional current (I3PDir) versus Polarizing
voltage (V3PPol)
• Directional current (I3PDir) versus Polarizing
current (I3PPol)
• Directional current (I3PDir) versus Dual polarizing
(VPol+ZPol x IPol) where ZPol = RPol + jXPol
IDir, VPol and IPol can be independently selected to
be either zero sequence or negative sequence.
1MRK 511 265-BUS B
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