Power over fibre
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Power over fibre



Power transmission over Optica Fibre Cables

Power transmission over Optica Fibre Cables



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    Power over fibre Power over fibre Presentation Transcript

    • Optical Fibres for Power Transmission -Power over Fiber (PoF) -Pratheek Manjunath 6th semester, TCE RVCE, Bangalore
    • This application… is a combination of Fiber Optics and Power Engineering finds importance in alternative environments
    • Combination of Two Different Concepts Fiber optic cables 1. Transmits light (photons) 2. Primarily for communications Electric cables 1. Transmits electricity (electrons) 2. Primarily for powering electrical devices
    • PoF Block Diagram
    • Components Transmitter • powered by a local power source of 24-56 V DC • Contains a high power laser diode and associated controller electronics • The lasers transmit high power light into two or more fiber strands, providing the light energy required for the receiver unit. Receiver • The receiver has two photovoltaic power receivers (PPC) that convert the laser light into electrical energy. Fiber • Multimode,Step Index: 62.5/125 um • Alpha = 3db / 500m • Length = 1 to 500m
    • All Dielectric Self Supporting- ADSS High fiber count Cheaper than OPGW Optical Ground Wire (OPGW) OPGW is a composite wire which serves as a conventional overhead ground wire, with the added benefit of providing high-capacity and reliable fiber optic communication. Most commonly used Fiber Optic Cables
    • Tech-Specs Opearting wavelength : 850nm PowerInput: 24-56VDC@2A (max 45 Watts) PowerOutput: 24VDC@20mA (max 0.6 Watts) Temperature Limits: Transmitter 0°C to +35°C Receiver -40°C to +70°C
    • Downsides •Inefficient transducers •not practical for long distances and high voltage. Common Problems Contamination – exhaust, emissions, salt fog. Space Potential – Electrical potential induced on fiber optic cables Dry Band Arcing – Caused by the induced current during wet conditions
    • Employment Options Phillips HP Cisco General Electric The Furukawa Electric Co.
    • References “Electrical Design Parameters of All-Dielectric-Self-Supporting Fiber Optic Cable”, M.W. Touminen and R.G Olsen, IEEE Transactions on Power Delievery, Vol. 15, No. 3, July 2000 “Sensor Design for Leakage Current Measurement on ADSS Fiber-Optic Cable”, G.G Karady, Q, Huang, M.R Hernandez, D. Srinivasan, IEEE 2001 www.fiberplanners.com www.thenakedscientists.com spectrum.ieee.org/energy/electricity-over-glass www.ee.buffalo.edu/faculty/paolo/voltage-fiber