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        ban

        Contact us

        lmcon
        Liaocheng Xinda Transformer Co., Ltd
        Contact person: Dai Deyu
        Contact 0635-8252177 8252188
        Mobile phone: 13806350610 13306350610
        The true: 0635-8252188
        Mail editor: 252000
        Web site: http//www.warrenlane.com
        Email: xindakf@126.com
        Address: Weiyu North Road Industrial Community, Liaocheng City, Shandong Province

        Offers

        Home > Offers (RSS)
        33KV DISTRIBUTION TRANSFORMER Technical Data Schedule FOR 25KVA
         

        33KV DISTRIBUTION TRANSFORMER Technical Data Schedule

        FOR 25KVA

         

         

        Description

        Unit

        TANESCO

        Bid

        It complies with

        International standard

         

        IEC 76

        IEC 76

        Manufacturer

         

         

        Guangdong Guangte Electric Co.,Ltd

        Country of origin

         

         

        China

        Nominal frequency

        Hz

        50

        50

        Nominal power rating

        kVA

        25

        25

        Maximum continuous

        power rating

        kVA

        25

        25

        Nominal primary voltage

        kV

        33/11

        33/11

        Nominal secondary voltage

        kV

        0.4

        0.4

        Type of Cooling

         

        ONAN

        ONAN

        Winding Polarity/Vector

        Group

         

        Dyn11

        Dyn11

        Number of Tap Positions

         

        5

        5

        Percentage Regulation per

        Tap

        %

        2.5

        2.5

        Basic Impulse Level 33/11

        kV

        kV

        170/75

        170/75

        Impedance

        %

        4

        4

        Short Circuit Current

        kA

        25 at full load

        25 at full load

        Short Circuit Duration

        Sec

        2

        2

        X/R Ratio

         

        Specify

        IEC76-5

        Duration of Overload: 25 %

        Min.

        60

        60

        50%

        Min.

        1

        1

        Design continuous ambient

        temperature

        C

        40

        40

        Average winding temperature

        rise

        C

        55

        55

        Top oil temperature rise

        C

        50

        50

        Maximum hot spot

        temperature

        C

        98

        98

        Temperature Gradient

        C

        /

        /

        Flux Density

        T

        1.65

        1.65

        RIV level at 1Mhz

        µV

         

        250000

        Core losses

        kW

         

        0.17/0.13

        Winding losses

        kW

         

        1/0.6

        No load current (at full

        voltage)

        A

         

        2.1

        Regulation at full load: PF=1

        %

         

        98.78/98.98

        PF=0.85

        %

         

        99.21/99.35

        Silicone Steel:

        Manufacturer/country of

        origin/Type/Grade

        %

         

        Wuhan Steel Group/China/30Q120

        Conductor for HV Windings:

        Manufacturer/country of

        origin/Type/Grade

         

         

        Luoyang Copper Co., Ltd /China/T2

        Conductor of LV Windings:

        Manufacturer/country of

        origin/Type/Grade

         

         

        Luoyang Copper Co., Ltd /China/T2

        Conductor Material:

         

         

         

        HV Windings

         

         

        Cooper

        LV Winding

         

         

        Cooper

        Conductor Shape:

         

         

         

        HV Windings

         

         

        Round

        LV Winding

         

         

        Round

        Maximum current density:

         

         

         

        Copper

        A/sq.mm

         

        3.8

        Aluminium

        A/sq.mm

         

        2.2

        HV Bushings:

        Manufacturer/country of

        origin/Type/Grade

         

         

        Yachen/China/BLQ-35/315/ Yachen/China/BLQ-12/315

        LV Bushings:

        Manufacturer/country of

        origin/Type/Grade

         

         

        Yachen/China/BF-1/315

        Bushing Catalogue Number:

         

         

         

        HV

         

         

        50261/50250

        LV

         

         

        50200

        Bushing Basic Impulse

        Level:

         

         

         

        HV

        kV

         

        170/50

        LV

        kV

         

        /

        Bushing Power Frequency

        Withstand:

         

         

         

        HV

        kV

         

        70/28

        LV

        kV

         

        3

        Puncture Voltage of HV

        Bushings

        kV

         

         

        Creepage Distance:

         

         

         

        HV Bushings 33/11kV

        mm

         

        1080/360

                    LV Bushings

        mm

         

        /

        Are arcing horns fitted?

        (y/n)

         

         

        Yes

        Are arcing horns adjustable?

        (y/n)

         

         

        Yes

        Spark gap 33/11

        mm

         

        100-250/25-80

        Impulse flashover level with

        arcing horns fitted

        kV

         

        170/70

        Slope of upper surface of

        bushing shed

                                                               

         

         

        /

        Can bushings be de-tanked

        without detaching cover?

        (y/n)

         

         

        N

        Colour of bushing porcelain

         

         

        Brown

        Type of HV Terminal

         

         

        Stud

        Metal used for terminal

         

         

        Cooper

        Stud Diameter

        mm

         

        12

        Are conic spring washers

        fitted? (y/n)

         

         

        Y

        Range of permissible

        conductor sizes

        sq.mm

         

        3.8

        Minimum phase to phase

        clearance

        mm

         

        380/240

        Minimum phase to earth

        clearance

        mm

         

        /

        Bushing to arrester

        clearance

        mm

         

        120

        Type of HV Terminal

         

         

        Stud

        Type of LV Terminal

         

         

        Stud

        Metal used for terminal

         

         

        Cooper

        Stud Diameter

        mm

         

        12

        Range of permissible conductor sizes

        sq. mm

         

        /

        Type of atmospheric

        protection

         

         

        Tinned

        Minimum phase to phase

        clearance

        mm

         

        380240

        Minimum phase to earth

        clearance

        mm

         

        /

        Continuous current rating

        A

         

        300

        Type of earth terminal

         

         

        Stud

        Spring and lock washers

        included? (y/n)

         

         

        Yes

        Tap Changer:

        Manufacturer/Country of

        origin/ Type/Grade

         

         

        Zhejiang, China, T 50/35

        Can tap changer switch be

        locked? (y/n)

         

         

        Yes

        Circuit breaker :

        Manufacturer/country of

        origin

         

         

        /

        Catalogue number

         

         

        /

        International standard it

        complies with

         

         

        /

        Rated Voltage 33/11

        kV

         

        /

        Rated Current

        A

         

        /

        Symmetrical Breaking

        Capacity

        kA rms

         

        /

        Rated Marking Current

        kA prak

         

        /

        Degree of Washer Protection

         

         

        /

        Dimensions: Length

        mm

         

        /

        Width

        mm

         

        /

        Height

        mm

         

        /

        Weight in service

        kg

         

        /

        Transformer Oil:

        Manufacturer/ Country of

        origin/ Type/Grade

         

         

        Sinopec/China/25#

        Quantity of Oil

        L

         

        80/60

        Tank Construction

         

        Hermetically Sealed

        Hermetically Sealed

        Type of Steel

         

        Mild Steel

        Mild Steel

        Grade of Steel

         

        Mild Steel

        Mild Steel

        Shape of Tank

         

         

        Rectangular

        Minimum thickness of: Tank

        Steel:

        mm

        3

        4

        Top Cover:

        mm

         

        6

        Cooling Surfaces:

        mm

         

        1.2

        Grade of stainless steel

        weldwire (if applicable)

         

         

        /

        Is tank fully filled with oil?

        (y/n)

         

         

        Y

        Top oil temperature for

        100kN/sq.mm

        C

         

         

        60

        Steady load to give top oil

        temperature (30C ambient)

        kW

         

        1.17/0.73

        Steady load to give top oil

        temperature (30C ambient and solar radiation of

        120w/sq.m)

        kW

         

        /

        Type of cooling surfaces

         

         

        Corrugated

        Type of metal on earth

        terminal

         

         

        Cooper

        Is pressure relief device

        offered? (y/n)

         

         

        Y

        Relief pressure for relief

        device

        kPA/sq.mm

         

         

        25

        If no pressure relief device

        offered how will tank behave

        under overpressure?

         

         

        /

        Are transformers tested for

        leakage? (y/n)

         

         

        Y

        Corrosion protection

         

         

        Yes

        Galvanizing: Type/Grade

         

        Hot dip Galvanised

        Hot dip Galvanised

        Galvanizer

         

         

        /

        Core Type

         

         

        Wounded core type

        Tank Dimensions:

         

         

         

        Width

        mm

         

        700/500

        Depth

        mm

         

        1000/880

                      Height

        mm

         

        1450/1000

        Diameter

        mm

         

        /

        Can transformers be handled

        by forklift? (y/n)

         

        Yes

        Yes

        Weight of tank

        kg

         

        80/60

        Weight of core and windings

        kg

         

        200/130

        Weight of oil at 20C

        kg

         

        180/100

        Total weight of transformer

        ready for service

        kg

         

        550/300

        Shipping weight of

        transformer

        kg

         

        580/330

        Guarantee period

        Months

         

        12

        The relevant information

        Copyright: Xinda Transformer Co., Ltd. Contact: Dai Deyu
        Address: Shandong Province Liaocheng City Wei Yu North Road Industrial District for the record serial number: Lu ICP prepared no. 06035720 

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