ELECTRIC CABLE POWER TRANSMISSION LINES

摘要

In an electric cable power transmission line of the class wherein three phase metal sheath single core power cable sections are interconnected by joint boxes, two sets of normal joint boxes at the opposite ends of each unit line section are grounded, two sets of joint boxes are provided in each unit line section, at each set of the insulating joint boxes the sheaths of the cables of one phase on one side of the insulating joint boxes are crossconnected by cross-connecting wires to the sheaths of the cables of another phase on the other side thereby forming three loop circuits each including the grounding connections of the normal joint boxes, the sheaths of the cable sections and the crossconnecting wires, saturable reactors are connected in series with only one or two of the loop circuits.