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IEEE Standard for Synchrophasor Measurements for Power Systems -- Amendment 1- Modification of Selected Performance Requirements Original standard IEEE Std C37.118.1a-2014 in PDF full version. Additional info + preview on request

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IEEE Standard for Synchrophasor Data Transfer for Power Systems Original standard IEEE Std C37.118.2-2024 in PDF full version. Additional info + preview on request

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IEEE Guide for Breaker Failure Protection of Power Circuit Breakers Original standard IEEE Std C37.119-2016 in PDF full version. Additional info + preview on request

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IEEE Guide for Power System Circuit Breaker Failure Protection Original standard IEEE Std C37.119-2025 in PDF full version. Additional info + preview on request

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IEEE Guide for Protection System Redundancy for Power System Reliability Original standard IEEE Std C37.120-2021 in PDF full version. Additional info + preview on request

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IEEE Guide for Switchgear - Unit Substation - Requirements Original standard IEEE Std C37.121-2012 in PDF full version. Additional info + preview on request

Document status: Replaced by St IEEE Std C37.121-2020