AMETEK Power Instruments is supporting the new IEEE C37.118 communications standard for Synchrophasor data with its advanced TR 2000 Series Multi-Function Recorder.
Using the advanced TR-2000 recorder with its internal GPS receiver, phasor data for up to 10 groups, system frequency, digital input status and individual analog channel values can be streamed to a central collection site at data rates of up to once-per-cycle. As an alternative, two recorders can communicate to compare the phasor values and trigger a long-term disturbance record based on the angle difference and rate-of-change of angle at the two locations.
In its last stages of approval, the C37.118 standard defines a communication protocol and data format for transmitting precision time-tagged positive sequence phasor data to a central site. That data can then be used for state-estimation calculations, stability analysis, wide-area monitoring systems and other applications.
When introduced in 1998, the TR-2000 included support for the IEEE P1344 standard for Synchrophasor data. It was the only fault recording system to provide oscillography, disturbance recording and steady-state loggers along with Synchrophasor data simultaneously in one package. As a result of the experience gained from that implementation, the industry enhanced and clarified the standard to become the new C37.118 protocol.