The short circuit test of voltage-sourced converter based high voltage direct current（VSC-HVDC） power grid with hybrid DC circuit breaker is still a blank in the world. In order to test the fault clearance reliability of DC circuit breaker and the logic of cooperation with the VSC valve

it is necessary to carry out short circuit tests in VSC-HVDC transmission projects. The electromagnetic environment data around the circuit breaker need to be acquired in the tests

which can accumulate experience for similar tests in the future. Based on the Dinghai VSC Converter Station of Zhoushan 200 kV DC Grid equipped with hybrid DC circuit breakers

this paper combines with the different action logics of DC circuit breaker and VSC valve

designs three short circuit test schemes in this converter station

including positive pole-to-ground fault

negative pole-to-ground fault

and pole-to-pole fault. These schemes overcome the difficulty of artificial short circuit faults in cable transmission systems. In the application

the action logic of the DC circuit breaker breaking and the converter valve not being blocked under a pole-to-ground fault was verified

the pole-to-pole short-circuit tests of the VSC-HVDC power grid were completed for the first time

and the transient voltage

current

and electromagnetic field data of DC side were obtained. It provides technical support for the research of hybrid DC circuit breaker and subsequent HVDC transmission projects.