IEEE C37.011-2019 PDF Download

The IEEE C37.011-2019 standard provides procedures and calculations for applying transient recovery voltage (TRV) ratings for AC high-voltage circuit breakers rated above 1000 V. The TRV ratings play a crucial role in determining the breaking capability limits of these circuit breakers.

The guide compares the TRV ratings with typical system TRV duties and offers examples of TRV calculations. It also suggests options if the TRV duty exceeds the TRV ratings of the circuit breaker. It is important to note that this application guide is not included in other existing circuit breaker standards.

The purpose of this guide is to provide an application guide for the TRV ratings given in IEEE Std C37.04 for AC high-voltage circuit breakers rated on a symmetrical current basis. It also references other standards such as IEEE Std C37.09 and IEEE Std C37.06.1 for definitions, rating structure, test procedures, and preferred transient voltage ratings and related required capabilities. IEEE Std C37.010 applies to these circuit breakers in other respects.