ABB REC670 2.1 IEC User Manual

AutomationBits, command function for DNP3.0 AUTOBITS
SEMOD158591-5 v7
AutomationBits function for DNP3 (AUTOBITS) is used within
PCM600 to get into the configuration of the commands
coming through the DNP3 protocol. The AUTOBITS function
plays the same role as functions GOOSEBINRCV (for IEC
61850) and MULTICMDRCV (for LON).
Single command, 16 signals
M12446-6 v5
The IEDs can receive commands either from a substation
automation system or from the local HMI. The command
function block has outputs that can be used, for example, to
control high voltage apparatuses or for other user defined
functionality.
4. Differential protection
1Ph High impedance differential protection HZPDIF
M13071-3 v12
The 1Ph High impedance differential protection HZPDIF
functions can be used when the involved CT cores have the
same turns ratio and similar magnetizing characteristics. It
utilizes an external CT secondary current summation by
wiring. Actually all CT secondary circuits which are involved in
the differential scheme are connected in parallel. External
series resistor, and a voltage dependent resistor which are
both mounted externally to the IED, are also required.
The external resistor unit shall be ordered under IED
accessories in the Product Guide.
HZPDIF can be used to protect tee-feeders or busbars,
reactors, motors, auto-transformers, capacitor banks and so
on. One such function block is used for a high-impedance
restricted earth fault protection. Three such function blocks
are used to form three-phase, phase-segregated differential
protection. Several function block instances (for example, six)
can be available in a single IED.
5. Current protection
Instantaneous phase overcurrent protection PHPIOC
M12910-3 v12
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 OC4PTOC
M12846-3 v16
The four step three-phase overcurrent protection function
OC4PTOC has an inverse or definite time delay independent
for step 1 to 4 separately.
All IEC and ANSI inverse time characteristics are available
together with an optional user defined time characteristic.
The directional function needs voltage as it is voltage
polarized with memory. The function can be set to be
directional or non-directional independently for each of the
steps.
A second harmonic blocking level can be set for the function
and can be used to block each step individually.
Instantaneous residual overcurrent protection EFPIOC
M12701-3 v14
The Instantaneous residual overcurrent protection EFPIOC
has a low transient overreach and short tripping times to
allow the use for instantaneous earth-fault protection, with the
reach limited to less than the typical eighty percent of the line
at minimum source impedance. EFPIOC is configured to
measure the residual current from the three-phase current
inputs and can be configured to measure the current from a
separate current input.
Four step residual overcurrent protection, zero sequence and
negative sequence direction EF4PTOC
M13667-3 v18
The four step residual overcurrent protection EF4PTOC has
an inverse or definite time delay independent for each step.
All IEC and ANSI time-delayed characteristics are available
together with an optional user defined characteristic.
EF4PTOC can be set directional or non-directional
independently for each of the steps.
IDir, UPol and IPol can be independently selected to be either
zero sequence or negative sequence.
Second harmonic blocking can be set individually for each
step.
EF4PTOC can be used as main protection for phase-to-earth
faults.
EF4PTOC can also be used to provide a system back-up for
example, in the case of the primary protection being out of
service due to communication or voltage transformer circuit
failure.
Directional operation can be combined together with
corresponding communication logic in permissive or blocking
teleprotection scheme. Current reversal and weak-end infeed
functionality are available as well.
Residual current can be calculated by summing the three
phase currents or taking the input from neutral CT
Four step negative sequence overcurrent protection
NS4PTOC
GUID-485E9D36-0032-4559-9204-101539A32F47 v5
Four step negative sequence overcurrent protection
(NS4PTOC) has an inverse or definite time delay independent
for each step separately.
All IEC and ANSI time delayed characteristics are available
together with an optional user defined characteristic.
The directional function is voltage polarized.
NS4PTOC can be set directional or non-directional
independently for each of the steps.
1MRK 511 361-BEN B
Bay control REC670 2.1 IEC
Product version: 2.1
ABB 21

ABB REC670 2.1 IEC Specifications

General

Brand	ABB
Model	REC670 2.1 IEC
Category	Control Systems
Language	English