PowerPoint Presentation

Transient Recovery Voltage

Finally when the arc get extinguishes a high frequency voltage transient appears across the contacts. This occurs due to contacts are nearer to each other.This high frequency transient tries to restrike the arc hence it is called transient recovery voltage.Transient recovery voltage affects the behavior of circuit breaker.This voltage appears immediately after final interruption.This causes high dielectric stress between contacts.If dielectric stress is less then arc is restrikes.