State Detection Technology and Failure Mechanism of Energy Fiber in HVDC Measurement System

Aiming at the problem that the high failure rate, the state detection and fault location cannot be performed and the failure mechanism are difficult to diagnose of the energy fiber in HVDC measurement system. Based on Optical Time-Domain Reflectometry, a new state detection and fault location technology(EFDL) of energy fiber in HVDC measurement system is proposed, which can realize continuous status detection and fast fault location of energy fibers. Based on this EFDL technology, By the dynamic accelerated aging test of independent factor variables extraction such as temperature, macrobend, high power injection, end-face cleanliness and external pressure, the failure mechanism of energy fiber are analyzed, and the full life cycle management is supported.