A total of 141 papers were accepted at CIRED Session 3(operation

control and protection)of CIRED 2015. Two round table discussions“The protection of networks with low levels of short-circuit capacity”and“The Responsibility of distribution grid operators for system services”were held. The subjects of the CIRED Session 3 papers cover: maintenance and condition assessment of distribution equipment

distribution management

blackout prevention and contingency management

LV automation

MV automation

HV automation

phasor measurement unite(PMU)

supervisory control and data acquisition(SCADA)and management distribution system(DMS)

distribution network communication

islanding

fault location

earth fault

application of protection technologies

protection algorithm and simulation

fault ride-through

etc. Hot discussion topics mainly include distribution automation fault location

control and protection of networks with distributed generation.