Fault Diagnosis Method for Intertum Short Circuit of Power Network Condenser

With the rapid development of UHVDC transmission, large scale condenser with dynamic reactive power compensation capability begins to be put in. In order to ensure its safe operation, this paper presents a fault diagnosis method for inter-turn short-circuit fault of power grid condenser. Based on the characteristic analysis of the stator inter-turn short circuit fault of the condenser, the wavelet packet energy of the vibration signal is extracted, and then the feature vectors are reduced by principal component analysis. Experimental results show that the improved algorithm is feasible and can reduce the randomicity and blindness of network parameter selection.