A Phasor Measurement Unit, or PMU for short, is the essential building block in the platform called Wide Area Monitoring System (WAMS).
These systems were developed to provide an overall real-time health check of nation-wide transmission grids, predicting and hopefully preventing power failures, analyzing those which did take place.
The SATEC PMU is a unique product. It is implemented as an add-on card for the PM180, together with other functionalities, such as power quality monitoring and fault recording, making it highly cost-effective. It communicates with 3rd party Phasor Data Concentrators, an important WAMS component in itself, enabling versatility.
Full IEEE C37.118.1 compliance, for both:
Full interoperability, featuring:
Optional clip-on CTs: no outage needed!
Versatile micro-sec resolution time sync:
PTP and IRIG-B
Expected steady-state total vector error:
(TVE): < 0.05%
*using the transient module
Available options:
Operating range:
Wide range application up to 828V AC
5th AC/DC voltage input:
monitoring substation battery (up to 300V DC)
16 Digital Inputs
available options:
8 Relay Outputs
Electromechanical (SPST Form A)
available options:
Combo: 8 Digital Inputs + 4 Relay Outputs
Available as:
Built-in:
Optional/additional: (1 per device):
Built-in: 85-265V AC / 88-290V DC
Additional options:
Complies with EN50022
For all downloads available for the PM180 analyzer, please go to the Downloads tab on the PM180’s main page.
Transient Recorder Module
Records voltage transients of up to 2kV (L-G) at 1024 samples/cycle per channel
Fault Recorder Module
Additional current input offers separated metering & protection CT connection, records current faults of up to 200A (40*In)
PMU Functionality
Phasor measurement unit (PMU) provides synchrophasor and frequency measurements compliant with the IEEE C37.118.1 P performance class, and real-time cyclic exchange of synchronized phasor data with the substation phasor data concentrator (PDC) based on the IEC 61850-9-2 sampled value (SV) service.
Auxiliary Power Supply
(max. one auxiliary power supply per PM180)
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