Approved & Proposed IEEE Smart Grid Standards
P2030.101 - Guide for Designing a Time Synchronization System for Power Substations
This guide practice covers the design, installation and monitoring of time synchronization systems in power utility substations. This includes time sources such as Global Positioning Satellite (GPS) and time distribution systems such as Inter-Range Instrumentation Group -B (IRIG-B), Network Time Protocol /Simple Network Time Protocol SNTP (NTP/SNTP), and Standard Profile for Use of IEEE Std. 1588 Precision Time Protocol in Power System Applications - IEEE STD C37.238 (tm). This practice assumes that the time source and the Intelligent Electronic Device (IED) have accurate clocks.