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The power transmission to a factory involves the transfer of apparent power, a combination of active and reactive power. The power factor measures how effectively electrical power is converted into useful work output. The ratio of the real power (KW) that does the work to the apparent power (KVA) supplied to the circuit.
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Related Experiment Videos

Dual cyclic power saving technique for XG-PON.

Geunyong Kim, Sungchang Kim, Dongsoo Lee

    Optics Express
    |October 17, 2014
    PubMed
    Summary

    Dual Cyclic Sleep (DCS) mode enhances energy efficiency in passive optical networks (PONs) by optimizing transmitter and receiver sleep periods. This advanced power-saving strategy outperforms existing methods in PON systems.

    Area of Science:

    • Telecommunications Engineering
    • Network Energy Conservation
    • Optical Network Design

    Background:

    • Energy conservation is a critical design goal for passive optical networks (PONs) to support green networking initiatives.
    • Existing power-saving modes in PONs may not fully exploit potential energy savings.

    Purpose of the Study:

    • To investigate the impact of separate period control for optical transceiver components on power saving in PONs.
    • To propose and evaluate a novel power saving mode, Dual Cyclic Sleep (DCS), for enhanced energy efficiency in PON systems.

    Main Methods:

    • Theoretical analysis of separate transmitter and receiver period control for power saving.
    • Implementation of the proposed Dual Cyclic Sleep (DCS) mode in an ETRI XG-PON system.
    • Experimental evaluation of DCS mode's power saving efficiency compared to doze and cyclic sleep modes.

    Related Experiment Videos

    Main Results:

    • Separate period control for optical transceiver components can significantly improve power saving in PONs.
    • The implemented DCS mode demonstrated superior power saving efficiency.
    • DCS mode outperformed traditional doze and cyclic sleep modes in experimental tests.

    Conclusions:

    • The Dual Cyclic Sleep (DCS) mode offers a more effective approach to energy conservation in PON systems.
    • Optimizing individual component sleep cycles is key to maximizing energy efficiency in optical networks.
    • DCS mode presents a viable solution for developing more sustainable and energy-efficient PON infrastructure.