Aiming at EHV/UHV transmission lines with shunt compensators, on the basis of detecting the resonant component at the terminals of the phase that is switched off a criterion to determine the fault nature of adaptive single-phase reclosing is proposed.

When a single-phase fault occurs on shunt reactor compensated EHV transmission lines,the elements,which compose the recovery voltage of the opened phase after the breaker tripping,include one more resonant component under transient faults than under permanent faults,so the fault nature can be distinguished by making an integral of the recovery voltage during a fundamental frequency cycle.

Based on complete and censored date, we obtain pointwise consistency of regression fUnction kernel estimates under suitable conditions, the results are distribution free in the sense that they are true for all distributions μ of X.

folksonomy,auto-classifying and auto-clustering,which can be used in reading background data,classified subscription,mail filtering and file management.

This article starts from the requirements of the start of multi-operation system in teaching and daily work,and then makes some research on the realization of free partition,the coexistence of multi-operation system in different partitions,and the free choice from different operation systems.