The Study of the Optical CT Temperature Characteristic Using Faraday Effects

In this paper, we wrote about the basic experimentation of Optical CT`s temperature characteristic to measure high-current in a super-high-voltage electric power equipment which is using Faraday effect. We used the 1310[nm] Laser Diode as the light source and PIN Photodiode as receiver. For the transmission line of light, we used 30[m] single mode fiber which could maintain the state of polarization in the optical fiber. For the experiment, the temperature transformation device make by aluminium. the The range of current was from 400[A] and 1300[A] and the range of temperature was from . In a same experimental condition, magnitude increased input current increase follow by increasing proportion of input current.