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35kV - 16000 KVA High Voltage Power Transformer 3 Phase ONAN / ONAF Cooling

Categories Power Distribution Transformer
Brand Name: Pearl Electric Co.,Ltd.
Model Number: PEO-S, S9~13,SZ11-M,SZ11
Certification: KEMA, CE, CCC, ISO9001
Place of Origin: China
MOQ: 1 unit
Price: USD/RMB
Payment Terms: T/T, L/C
Supply Ability: 2.5 Million KVA/Year
Delivery Time: 45-50days ex-work
Packaging Details: Seaworthy wooden packing
Capacity: 4000~31500kVA or Customized
Rated H. V.: 33kv or Customized
Rated L. V.: 11kV or Customized
Vector Group: Dyn11 or Customized
Impedence: 8-11% or Customized
Cooling: ONAN / ONAF or Customized
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    • Product Details
    • Company Profile

    35kV - 16000 KVA High Voltage Power Transformer 3 Phase ONAN / ONAF Cooling


    35kV - 16000kVA , 3 phases , Double-column , Power Distribution Transformer , Non-exitation regulating transformer​


    Product Advantages


    Core:


    The core is manufactured with high quality cold rolled grain-oriented silicon steel of high magnetic conductivity, and 45° mitring and steps overlapping structure is used for core production, enable the effectiveness of reducing no-load loss and no-load current.

    HV winding:


    HV winding is manufactured with high quality copper conductor, adopting optimized structure to improve electric distribution. Lightning impulse wave process is carried out for calculation and analysis, thus to improve transformer's anti-lightning impulse capability.

    LVwinding:


    LV winding is manufactured with high quality foil conductor, so the ampere-turn balance is excellent and the transverse magnetic flux leakage is low. The anti-short circuit capability is thus greatly improved. Oil conduit is rationally designed in the windings to increase winding's heat dispersion surface, effectively reduce temperature and improve transformer's overload capability.


    Introduction


    By winding number

    35 kV class 3-phase two-winding power transformer


    By tap-changing

    35 kV class on-load tap-changing power transformer



    35 kV class off-load tap-changing power transformer



    Insulation Structure:


    The transformer adopts class-A insulation. The HV and LV windings are arranged in concentric way. Between the windings are oil-clapboard insulation structure built with paper cylinder and small oil conduit.

    Tank:


    The tank conservator tank type with radiator fins.


    Executed Standards:
    IEC60076


    Leakage reparation

    Leakage on welding line
    Contact with transformer manufacturer.


    Leakage on meter device
    Contact with transformer or apparatus manufacturer.


    Leakage on conservation

    • Check whether any fixed part and connection have become loose, re-tighten them carefully.
    • Read the instruciton before replace the oil seal rubber if it is necessary.

    Reason for the acting of protector while the transformer running

    Possible warning or action:

    Body conservator and on-load tap-changer oil-level contact.


    Contact action caseReasonSolution
    Alarm for over low oil-levelOil leakageFind out and repair the point of leakage
    Over low temperature outsideInfuse a appropriate amount of transformer oil.
    Alarm for over high oil-levelHeavy load, exceed limit load

    to compare with the oil thermometer indicator.

    Check the load going. If it’s too high, decrease it.

    Over amount of transformer oilAdjusting oil-level in the conservator

    Oil thermometer contact


    Contact action caseReasonSolution
    Alarm for oil temperatureAt limit load

    Check whether the connected valves between the transformer and cooling device are expedite.

    Check whether the load going has been over burden.

    Decrease it before continue.

    TripAbnormal cooling device operation
    heavy load, exceed limit load

    Windings temperature contact (if equipped)


    Contact action caseReasonSolution
    Alarm for winding temperatureAt limit load

    Check whether the connected valves between the transformer and cooling device are expedite.

    Check whether the load going has been over burden.

    Decrease it before continue

    TripAbnormal running state of cooling device
    heavy load, exceed limit load


    Quality 35kV - 16000 KVA High Voltage Power Transformer 3 Phase ONAN / ONAF Cooling for sale
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