Schweitzer Engineering Laboratories, Inc. (SEL) announced that the SEL-351 family of distribution relays now includes built in synchrophasor measurement technology. The synchrophasor capability in SEL-351 relays is also compatible with SEL synchroWAVe (tm) Software and the SEL-3306 Synchrophasor Processor. SEL-5077 synchroWAVe Server Software and the SEL-3306 time-correlate synchrophasor data from SEL-351 Relays and send the information to display and archiving systems, such as SEL-5078 synchroWAVe Console Software. "Until recently, synchronized phasor measurements were available only from laboratory equipment or from expensive, stand-alone phasor measurement units," said SEL Founder and President Edmund O. Schweitzer. "The expense and need for separate equipment have limited the practical use of synchrophasors in utility operations, a problem solved by SEL technology."
