In order to study the application effect of Advanced Digital Power System Simula?tor(ADPSS) for inspection before entrance power grid of control protection device in Ningxia PowerGrid

takes two sets of typical line protection as inspection example

after built system model to makesimulation

through external physical interface connecting with protection device

verifies its opera?tion performance

the test shows that two sets of line protection action is qualified in all types of simula?tion faults. The result shows that using ADPSS make control protection device inspection test has highsimulation level

strong real-time

which can provide reliable test data for protection device inspectionbefore entrance power grid

as well as offer better technological guarantee for safe and steady operationof power system.