Transient recovery voltage
![Examples of TRV waveshapes](/Images/godic/202502/17/TRV-34734.JPG")
![Figure 1 - Recovery voltage in case of a capacitive load](/Images/godic/202502/17/TRV_capa_EN_version4734.jpg")
![Figure 2 - Voltages on terminals of the first pole that clears three-phase capacitive currents in a system with isolated neutral](/Images/godic/202502/17/TRV_cap_3phase4734.JPG")
![Figure 3 - Evolution of voltages with restrike occurring a half cycle after current interruption, in the case of single-phase capacitive current switching](/Images/godic/202502/17/Restrike_cap_switching4734.JPG")
A transient recovery voltage (or TRV) for high-voltage circuit breakers is the voltage that appears across the terminals after current interruption. It is a critical parameter for fault interruption by a high-voltage circuit breaker, its characteristics (amplitude, rate of rise) can lead either to a successful current interruption or to a failure (called reignition or restrike).