ABB Relion 670 Series Applications Manual page 52

Section 3
Configuration
can be extended to maximum 24 channels per PMU instance (on each data stream) on request.
This can be done when ordering the RES670 B20 configuration. In the standard B20 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 B20 configuration are Over Voltage,
Under Voltage, Over Frequency, Under Frequency and Rate of Change of Frequency.
Measuring functions for S, P, Q, I, V, 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 (OC4PTOC), Under/Over power protection (GUPPDUP, GOPPDOP), etc.
which can be added per request. RES670 B20 function library also includes additional functions
which are available but not configured. Note that RES670 B20 must be reconfigured if any
additional functions are used.
46
figure 4, there are optional functions such as ground fault protection (EF4PTOC),
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1MRK 511 407-UUS Rev. J
Phasor measurement unit RES670
Application manual