The utility model provides a territory protective apparatus stands, includes process layer plug -in components, the accuse layer plug -in components of standing, plug -in components, line?protection plug -in components, transformer protection plug -in components, bus protection plug -in components, man -machine interface plug -in components, power supply plug and the bus board of communicating of stand. The plug -in components collection SV analog input such as electric current that the sconce needed, voltage that stand entirely in process layer gather circuit breaker position, the circuit breaker atmospheric pressure low grade GOOSE switching value input information at full station, GOOSE switch?quantity?output information such as output trip protection. The communication function of accuse layer plug -in components completion territory protective apparatus stands and transformer substation backstage, the protection of information system of standing. Man -machine dialogue functions such as liquid crystal display, key board operation are accomplished to the man -machine interface plug -in components. The power supply plug input is exported to plug -in components power supply for exchanging or DC power supply, accomplishes the power supply for each plug -in components through the bus board. Communication and power supply function between each plug -in components are accomplished to the bus board.