Search results for 'synchro'

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Micro-PMU

Micro-Synchrophasors for Distribution Systems

Micro-PMU's in the electrical distribution system
PQube3-PQ-E08N

PQube3-PQ-E08N

PQ Disturbance & Energy Measurement-4 Voltage & 8 Current inputs
Tips and Tricks Video 123

Tips and Tricks Video 123

DARS phase evaluation (French and English document) The DARS signal is sometimes created in another equipment than a SPG. In this case, it is necessary to check regularly the phase of this DARS compared to the video Sync of the system. As a matter of fact, these two signals must be synchronous and stable otherwise clicks and pops suddenly appear. But this is not easy to do so, since one signal is analog and the other is digital, and on top of that it’s necessary to compare the BB with the content of the AES signal and not with the clock ! The trick to do that is to use a traditional oscilloscope able to trigger on a user-defined pattern in a digital stream.
Tips and Tricks Video 124

Tips and Tricks Video 124

PTP – A new reference (French and English document) To deploy systems interconnected with IP links, the most difficult issue to solve is synchronization of all the equipment’s with a unique clock. With this in mind, an old standard has been adapted for Broadcast applications: PTP (Precision Time Protocol). Originally, this technology has been used by banks for High Frequency Trading operations in order that all computers in the world have a unique clock that is millisecond accurate. This protocol has now been adapted for Broadcast applications and is well described in the recommendation SMPTE ST 2059-2.

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