EPE  Vol.5 No.4 B , July 2013
Research on Fault-feeder Selection Dvice
Abstract: The compensation current of the arc-suppressing coil makes the phase and amplitude of zero-sequence measurement current of the earthed fault feeder to vary. It is very hard to detect the fault feeder by using existing detectors based on single method. In this paper, integrative feeder selection strategy—zero sequence current increment method and the direction of transient current— is put forward. Based on the integrative feeder selection strategy, the design of fault-feeder selection device for one-phase-to ground fault on resonance grounding system is presented. For the purpose of testing and validating the operating principle of the device, the experiment of single-phase-to-ground fault has been carried out on the simulation of 1.2 kV power network. The results from many repeat experiments show that stability of the fault selection device is satisfactory.
Cite this paper: Z. Zhuo, H. Sun and H. Ji, "Research on Fault-feeder Selection Dvice," Energy and Power Engineering, Vol. 5 No. 4, 2013, pp. 937-940. doi: 10.4236/epe.2013.54B179.

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