INSULATOR APPARATUS FOR PHOTO CT ATTACHED BUS-LINE

摘要

PURPOSE:To make no need of a large size of the whole apparatus by detecting an electric current running in a bus-line and taking it out to the earth side without disturbing the movement of the bus-line which is so supported as to move freely up and down and right and left as a inclining V-hung bus-line. CONSTITUTION:Electric current flowing in a bus-line conductor 1 is detected by a photo CT 5 attached to the bus-line conductor 1 which is V-hung and inclines and it is converted into a photo-signal and taken out to the earth side through an optical fiber 6. The optical fiber 6 to take out the signal from the photo CT 5 is built in the bus-line conductor 1 or led to a joint box 7 along the outside of the bus-line conductor 1 and the signal is further led through a flexible optical fiber-built-in wire 9 and an optical fiber-built-in insulator 10 to the earth side and thus the photo signal is taken out without troubles since the displacement of the bus-line 1 is absorbed by the flexible optical fiber- built-in wire 9 even when the bus-line 1 swings owing to wind. Further, since the bus-line is no need to be fixed to attach the photo CT 5, the whole size of the insulator apparatus does not become large unnecessarily.