Wide Area Measurement System; Current Protection - ABB Relion RES670 Product Manual

Phasor measurement unit RES670 2.1 IEC
performs a simple summation of the currents of the two
channels I3P1 and I3P2.

5. Wide area measurement system

Configuration parameters for IEEE1344 and C37.118
protocol PMUCONF
RES670 supports the following IEEE synchrophasor
standards:
• IEEE 1344-1995 (Both measurements and data
communication)
• IEEE Std C37.118-2005 (Both measurements and data
communication)
• IEEE Std C37.118.1–2011 and C37.118.1a-2014
(Measurements)
• IEEE Std C37.118.2-2011 (Data communication)
PMUCONF contains the PMU configuration parameters
for both IEEE C37.118 and IEEE 1344 protocols. This
means all the required settings and parameters in order
to establish and define a number of TCP and/or UDP
connections with one or more PDC clients
(synchrophasor client). This includes port numbers,
TCP/UDP IP addresses, and specific settings for IEEE
C37.118 as well as IEEE 1344 protocols.
Protocol reporting via IEEE 1344 and C37.118
PMUREPORT
The phasor measurement reporting block moves the
phasor calculations into an IEEE 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 IEEE 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 RES670. More
information regarding synchrophasor communication
structure and TCP/UDP configuration is available in
18
GUID-33694C62-A109-4D8F-9063-CEFA5D0E78BC v3
GUID-8DF29209-252A-4E51-9F4A-B14B669E71AB v2
Application Manual under section C37.118 Phasor
Measurement Data Streaming Protocol Configuration.
Multiple PMU functionality can be configured in RES670,
which can stream out same or different data at different
reporting rates or different performance (service)
classes.

6. Current protection

Four-step phase overcurrent protection OC4PTOC
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.
Four step residual overcurrent protection, zero
sequence and negative sequence direction EF4PTOC
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.
1MRK 511 367-BEN D
M12846-3 v16
M13667-3 v18
ABB