Technical Data - ABB RES670 Technical Manual

Section 6
Wide area measurement system
6.2.8
144

Technical data

The IED is compliant with the synchrophasor measurement requirements of IEEE
C37.118.1-2011, including the amendment (IEEE C37.118.1a-2014) for both P and M
performance classes. The IED is also compliant with synchrophasor data transfer
requirements of IEEE C37.118.2-2011. There are two types of internal current
transformer cores in the IED, protection and measuring cores. Using the measuring
cores, the IED is compliant with all the synchrophasor measurement requirements. If
using the protection core, for the "signal magnitude-current" steady state test
(mentioned in Table 3 of IEEE C37.118.1-2011 standard), the compliancy to the
standard is limited to the current range between 50% and 200% of rated current for
both P and M classes of the standard. The reason is that protection cores are not
designed for accurate measurements on low current levels.
The compliancy to IEEE C37.118.1-2011 standard (including IEEE C37.118.1a-2014)
is limited to the reporting rates up to 60 frames per second which is required by the
standard. This means 10, 25, and 50 frames per second for 50 Hz system frequency and
10, 12, 15, 20, 30, and 60 frames per second for 60 Hz system frequency.
1MRK 511 408-UUS A
GUID-F0BAEBD8-E361-4D50-9737-7DF8B043D66A v4
Phasor measurement unit RES670 2.2 ANSI
Technical manual
SEMOD172233-1 v1