• IEEE PC37.09a:2025

IEEE PC37.09a:2025

IEEE Approved Draft Standard Test Procedures for AC High-Voltage Circuit Breakers with Rated Maximum Voltage Above 1000 V Amendment 1: Modifications to test procedures

standard by IEEE , 08/26/2025

Publisher: IEEE

File Format: PDF

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IEEE PC37.09a PDF

This amendment implements corrections and adds new information essential to properly test AC high-voltage circuit breakers as well as further harmonize this document with other industry standards. Considered modifications are regarding the TRV values and their harmonization with IEC 62271-100 and IEEE C37.016, introduction of alternative testing procedures for T100s or introduction of an integrity check for vacuum circuit breakers.

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