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Logic_Hyd

By Bonnie Hunter,2014-06-01 01:47
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Logic_Hyd

Logic diagram

    Shaijao C 3x660MW FGD Project Hydraulic cabinet - TAG No.: - TAG No.: 10HTC11 / 20HTC11 / 30HTC11 Variax ANN-5150/2500B PI-diagram - Howden Drawing No.: 0-123332-9 Howden Order No.: S7473 Functional descript. Trip-schedule Howden Draw. No.:

    L L&Alarm "Min-level"

    Oil levelCL001

    AP001 or&Start conditionAP002

    Pt 100

    Alarmt&Oil temperatureCT001o < 10 C"Low-temperature"

    ODTt> 55 Timer1o TripCAN001(manually within 5 min.)60 min.

    to > 50 C

    &Alarm

    t< 50 o C

    &AN001Start condition

    to > 60 C

    t> 15 o C

    ODTt < 8 AP001 orTrip operating pumpTimero CAP002manually10 min.

17.08.2004 Order no.: S7473 Rev.: - Drawn: FHP Check: LFA 57321253.doc Page 1/3

Logic diagram

    Shaijao C 3x660MW FGD Project Hydraulic cabinet - TAG No.: - TAG No.: 10HTC11 / 20HTC11 / 30HTC11 Variax ANN-5150/2500B PI-diagram - Howden Drawing No.: 0-123332-9 Howden Order No.: S7473 Functional descript. Trip-schedule Howden Draw. No.:

    P> 450 KPa

    Filter conditionCP201&Alarm

    Change filter element&AZ001(manually)

    P> 10 MPa

    Oil pressureCP101&Alarm

    See maintenace&manual

    P> 700 KPa

    &AlarmOil pressureCP001

    AP001 orChange over to&AP002stand-by pump

    &AN001Start condition

    ODT

     TripTimerAN001& (manually within 5 min.)

    20 min.

17.08.2004 Order no.: S7473 Rev.: - Drawn: FHP Check: LFA 57321253.doc Page 2/3

Logic diagram

Shaijao C 3x660MW FGD Project Hydraulic cabinet - TAG No.: - TAG No.: 10HTC11 / 20HTC11 / 30HTC11

    Variax ANN-5150/2500B PI-diagram - Howden Drawing No.: 0-123332-9

    Howden Order No.: S7473 Functional descript. Trip-schedule Howden Draw. No.:

    Change over toAP001stand-by pumpODTTimer&

    2000 hoursAP001Stop operating pump

    Pump startedAP001

    Pump runs1

    AN001Start condition

    Pump startedAP002

    Pump runs

    Change over toODTAP002stand-by pump

    Timer&

    2000 hours

    AP002Stop operating pump

    Main motor stoppedAN001Main motor runs

    Pt 100AP001 or&Stop operating pumptAP002o Oil temperatureCT001< 40 C

    ot

    AH201 andCut in/cut out heating &Oil temperatureCT101AH202elements o<15 C - cut inoC - cut out>23

17.08.2004 Order no.: S7473 Rev.: - Drawn: FHP Check: LFA 57321253.doc Page 3/3

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