ABB Relion 670 Series Product Manual page 32

Bay control REC670
Version 2.2
clients (synchrophasor client). This includes port
numbers, TCP/UDP IP addresses, and specific settings
for IEC/IEEE 60255-118 (C37.118) as well as IEEE 1344
protocols.
Protocol reporting via IEEE 1344 and IEC/IEEE
60255-118 (C37.118) PMUREPORT
The phasor measurement reporting block moves the
phasor calculations into an IEC/IEEE 60255-118 (C37.118)
and/or IEEE 1344 synchrophasor frame format. The
PMUREPORT block contains parameters for PMU
performance class and reporting rate, the IDCODE and
Global PMU ID, format of the data streamed through the
protocol, the type of reported synchrophasors, as well
as settings for reporting analog and digital signals.
The message generated by the PMUREPORT function
block is set in accordance with the IEC/IEEE 60255-118
(C37.118) and/or IEEE 1344 standards.
There are settings for Phasor type (positive sequence,
negative sequence or zero sequence in case of 3-phase
phasor and L1, L2 or L3 in case of single phase phasor),
PMU's Service class (Protection or Measurement),
Phasor representation (polar or rectangular) and the
data types for phasor data, analog data and frequency
data.
Synchrophasor data can be reported to up to 8 clients
over TCP and/or 6 UDP group clients for multicast or
unicast transmission of phasor data from the IED. More
information regarding synchrophasor communication
structure and TCP/UDP configuration is available in
Application Manual under section IEC/IEEE 60255-118
(C37.118) Phasor Measurement Data Streaming Protocol
Configuration.
Multiple PMU functionality can be configured in the IED,
which can stream out same or different data at different
reporting rates or different performance (service)
classes.
8. Current protection
Instantaneous phase overcurrent protection PHPIOC
The instantaneous three phase overcurrent (PHPIOC)
function has a low transient overreach and short
tripping time to allow use as a high set short-circuit
protection function.
Directional phase overcurrent protection, four steps
OC4PTOC
Directional phase overcurrent protection, four steps
(OC4PTOC) has an inverse or definite time delay for each
step.
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M12910-3 v15
M12846-3 v18
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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
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.
Directional residual overcurrent protection, four
steps EF4PTOC
Directional residual overcurrent protection, four steps
(EF4PTOC) can be used as main protection for phase-to-
earth faults. It 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.
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 to be directional or non-directional
independently for each step.
IDir, UPol and IPol can be independently selected to be
either zero sequence or negative sequence.
A second harmonic blocking can be set individually for
each step.
Directional operation can be combined together with
the corresponding communication logic in permissive or
blocking teleprotection scheme. The current reversal
and weak-end infeed functionality are available as well.
The residual current can be calculated by summing the
three-phase currents or taking the input from the
neutral CT.
1MRK 511 404-BEN N
M12701-3 v16
M13667-3 v20
Hitachi Power Grids