We propose a four-channel signal-receiver optical subassembly (ROSA) for partial-discharge signal transmission using a coarse-wavelength-division multiplexing (CWDM) thin-film filter (TFF). The proposed fourchannel ROSA consists of an ultrasmall-factor-based demultiplexer module, which is fabricated with a parallel optical block, four CWDM TFFs, and four 28-Gbps integrated positive-intrinsic-negative photodiode blocks. The partial discharge on a 22.9-kV XLPE cable joint was successfully measured using the proposed module with phase-resolved partial-discharge analysis and a pulsediagnosis system. The experimental results demonstrated the feasibility and effectiveness of the proposed ROSA module for the diagnosis of partial discharge, which is important for monitoring electric power facilities.
Bibliographical noteFunding Information:
This study was supported by the KEPCO Research Institute R&D Program for a project entitled “Development of real-time monitoring system for URD facilities based on wireless sensor network” funded by the Korean Electric Power Corporation.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE).
- High-frequency current transformer
- Optoelectronic packaging
- Received optical subassembly
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics