The utility model discloses a low -voltage grade modularization single -phase string of remounting put, leave switch DL2, bypass switch DL3, capacitor bank spare, zinc oxide arrester MOV, protection device, current transformer CT and get ability and detection device PT including first isolation switch DL1, second septum, adopt modular structure, install to join in marriage at 10kV and carry out the pressure regulating on the net, can make all fronts magnitude of a voltage fluctuation littleer moreover, if mending, separate unit modularization cluster can not satisfy a certain net pressure regulating requirement of joining in marriage, the indemnifying measure of accessible multiple spot is satisfied and is joined in marriage the net pressure regulating, voltage control requirement when changing cluster remounting and put mounted position and increase and decrease device mount table number and satisfy different distribution networks or same and join in marriage load of power grid and change, can adapt to multiple distribution lines uses, the engineering adaptability that the modularization cluster was mended has been improved, the utilization ratio that cluster remounting put has greatly been improved, thus the cost is reduced, it has more vast potential for future development to make cluster remounting put in the distribution network.