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STANDARD ELECTRIC WORKS CO., LTD. www.sew.com.tw 5F., NO.105, JHONGCHENG RD., TUCHENG DIST., NEW TAIPEI CITY 23674, TAIWAN (R.O.C.) TEL: 886-2-22681528 FAX: 886-2-22681529 e-mail: [email protected] OPERATION PRINCIPLE ● A synchroscope indicates the synchronization point (scale center) when the frequencies and the phases at a generator side and a bus line side are matched. ● If the frequencies of both side are equal, the position at which the needle is stationary indicates the phase difference between the two. ● When the generator side (starting side) frequency is fG and the bus line side (operating side) frequency is fB, the direction of rotation of the needle is as follows: When fG=fB The needle is stopped When fG>fB The needle rotates in the FAST direction When fG<fB The needle rotates in the SLOW direction ● Input voltage: 120V AC or 240V AC ● Standard 4.5 inch switchboard ● Front panel mount ● 360° indication ● Metal case V 01 LS-110A SYNC Model SYNCHROSCOPE

SYNCHROSCOPE - SEWA synchroscope indicates the synchronization point (scale center) when the frequencies and the phases at a generator side and a bus line side are matched. If the

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  • STANDARD ELECTRIC WORKS CO., LTD.www.sew.com.tw

    5F., NO.105, JHONGCHENG RD., TUCHENG DIST., NEW TAIPEI CITY 23674, TAIWAN (R.O.C.)

    TEL: 886-2-22681528FAX: 886-2-22681529

    e-mail: [email protected]

    OPERATION PRINCIPLE

    ●Asynchroscopeindicatesthesynchronizationpoint(scalecenter)whenthefrequenciesandthephasesatageneratorsideandabuslinesidearematched.

    ●Ifthefrequenciesofbothsideareequal,thepositionatwhichtheneedleisstationaryindicatesthephasedifferencebetweenthetwo.

    ●Whenthegeneratorside(startingside)frequencyisfgandthebuslineside(operatingside)frequencyisfb,thedirectionofrotationoftheneedleisasfollows:Whenfg=fb TheneedleisstoppedWhenfg>fb Theneedlerotatesinthe

    FASTdirectionWhenfg

  • STANDARD ELECTRIC WORKS CO., LTD.www.sew.com.tw

    5F., NO.105, JHONGCHENG RD., TUCHENG DIST., NEW TAIPEI CITY 23674, TAIWAN (R.O.C.)

    TEL: 886-2-22681528FAX: 886-2-22681529

    e-mail: [email protected]

    DIMENSIONS

    WIRING DIAGRAM

    LS-110A SYNCModel

    SPECIFICATIONSLS-110A SYNC

    (120V)LS-110A SYNC

    (240V)NominalInputVoltage 120VAC 240VAC

    FrequencyRange 50Hzor60Hz

    Scale SLOW/FASTIndication MovingpointerAngleofrotation 360°

    P2B P2GP1B P1G

    BUSGEN

    80.020.0 1510

    15.3

    100.

    5

    110.0

    110.

    0Ø103.5

    86.0110.0

    Ø6.5

    110.

    086

    .0

    Ø100

    .5