Configuration; Introduction; Description Of Configuration Res670; Description Of Configuration A20 - ABB RELION 670 Series Applications Manual

1MRK 511 364-UUS A
Section 3
3.1

Introduction

3.2

Description of configuration RES670

3.2.1 Introduction
3.2.1.1

Description of configuration A20

The configuration of the IED is shown in
RES670 A20 configuration is applicable for a typical single busbar single breaker arrangement
monitoring up to three bays. RES670 A20 is delivered in 1/2, 3/4 and full (1/1)19" rack casing. For
this application 12 analog inputs are used, thus only one transformer module (TRM) with 12 analog
inputs (9I+3U) is available in A20 standard configuration. As shown in
configuration as a PMU is measuring one 3-phase voltage of the busbar and three 3-phase
currents of bays 1 to 3. There are two instances of PMU reporting functionality available in A20
configuration, meaning two independent IEEE C37.118/1344 data streams. In the standard A20
configuration, each instance of PMU, in addition to frequency-deviation and rate-of-change-of-
frequency data, is reporting 16 synchrophasors over IEEE C37.118/1344; that is four 3-phase
synchrophasors and 12 single phase synchrophasors in each data stream corresponding to the AC
voltage and current measurements.
In addition, each data stream includes 8 analog and 8 binary reporting channels over IEEE
C37.118/1344 in the standard configuration. The number of analog and binary reporting channels
can be extended to maximum 24 channels per PMU instance (on each data stream) on request.
This can be done when ordering the RES670 A20 configuration. In the standard A20 configuration,
the analog reporting channels are used for reporting P and Q measurements from each bay over
IEEE C37.118/1344.
In addition to the binary reporting channels, there are 4 trigger bits (FREQTRIG, DFDTTRIG,
OCTRIG and UVTRIG) available per PMU instance, which are used to report the existing protection
function triggers over IEEE C37.118/1344.
The main functionality of the RES670 is synchrophasor reporting or PMU functionality. In addition,
this configuration also includes general back-up protection functions which are mainly intended
for alarm purposes. Available protection functions in standard A20 configuration are Overvoltage,
Undervoltage, Overfrequency, Underfrequency and Rate-of-change frequency.
Measuring functions for S, P, Q, I, U, PF, f are available for local presentation on the local HMI and
remote presentation via IEEE C37.118/1344 and/or via IEC 61850. The calibration parameters on
the measurement function allows calibration at site to very high accuracy.
As shown in
Overcurrent protection (OC4 PTOC), Under/Over power protection (GUPPDUP, GOPPDOP), etc.
which can be added per request. RES670 A20 function library also includes additional functions,
Application manual

Configuration

figure 3, there are optional functions such as Earth fault protection (EF4 PTOC),
figure 3.
Section 3
Configuration
SEMOD120082-1 v1
SEMOD120089-4 v8
GUID-519904C2-A07A-44C1-808C-83681DC25AA4 v1
IP14800-1 v1
GUID-DE587E43-5AB7-4B08-A7A2-051F0A050D83 v3
figure 3, RES670 A20
37