Home >  Products > Power Transmission & Distribution Equipments > Oil-immersed Tranformer (up to 35kV) > Oil Immersed Non-excitation

Oil Immersed Non-excitation


  • General

    1.This kind of product is applied to power system of three-phase, 50Hz as well as 35kV and below, it is the main transformer equipment of medium and small-sized transformer substation, supplies power distribution, power and illumination for the industry and agriculture.2.The company introduces in domestic and overseas advanced technique, adopts the latest material and optimizes design, which enables the product structure more reasonable, and greatly improves the product electric strength, mechanical strength and heat-sinking capability. S9 series product has passed the short -circuit test prepared by Wuhan High Voltage Research Institute and also the test prepared by National Center for Quality Supervision & T est of T ransformer .


    Structural Features

    1.Iron core
    The iron core is made of high quality cold rolled silicon steel sheet, adopts the kinds of types like full-bias multi-step seam, no punched hole, winding iron core, etc., besides, both stainless steel stay plate and epoxy glass belt are for clamping it.
    2.Coil
    High quality enameled wire that is made of oxygen free copper or paper wrapped flat copper wire is used as conductor, the coils is provided kinds of types such as drum type, spiral type, improved spiral type, continuous type and interleaved type.
    3.Oil tank
    The oil tank is of barrel type or shield type, the heat-sinking element is provided with corrugated plate or plated radiator . The transformer has not been equipped with trolley, but there is a base that accords with national standard rail gauge welded at the bottom of box for your convenience.
    4.Safety protection device
    According to national standard and users' requirements, the transformer may be equipped with following safety protection devices: pressure relief valve, gas relay, signal thermometer, oil purifier, oil conservator, oil sampling valve, etc.


    Implementation of the standards

    GB1094.1-1996 GB1094.2-1996 GB1094.3-2003 GB1094.5-2003 GB/T6451-2008 GB311.1-1997 JB/T10088-2004


    Service Environment

    1.Altitude: ≤1000m
    2.Ambient temperature: the highest temperature +40℃, the highest monthly mean temperature+30℃; The highest yearly mean temperature+20℃.
    3.Installation environment: inclination of installation place<3°, no obvious dirt and corrosive or flammable gas


    Models and meaning












  • S9 type double-winding non-excitation tap-changing
    oil immersed power transformer of 35kV

    Main technical paramete
    Rated
    capacity
    (kVA)
    VoltageConnection
    symbol
    Loss(kW)No-load
    current
    (%)
    Short circuit
    impedance
    (%)
    Weight (kg)
    H.V
    (kV)
    T apping range of
    high voltage
    L.V
    (kV)
    Load
    loss
    No-load
    loss
    Oil
    weight
    T otal
    weight
    80038.5
    35
    ±5% ±2×2.5%3.15
    6.3
    10.5
    Yd119.91.251.056.57903040
    100012.151.4818503410
    125014.671.760.99503890
    160017.552.1330.8510604620
    200019.352.610.7511955345
    250020.73.150.7512855960
    315024.33.870.7714706695
    400028.84.640.717608350
    500033.035.490.618509400
    630036.906.570.67.5220011300
    8000YNd1140.590.55245013240
    1000047.710.60.55323016600
    1250056.712.60.58358519400
    1600069.315.30.5442023100
    2000084.018.090.5606029700
    2500099.021.510.4649038200
    31500119.025.650.4689040300


    S9 type double-winding non-excitation tap-changing
    oil immersed distribution transformer of 35kV
    Main technical parameters
    Rated
    capacity
    (kVA)
    VoltageConnection
    symbol
    Loss(kW)No-load
    current
    (%)
    Short circuit
    impedance
    (%)
    Weight (kg)
    H.V
    (kV)
    T apping range of
    high voltage
    L.V
    (kV)
    Load
    loss
    No-load
    loss
    Oil
    weight
    T otal
    weight
    5038.5
    35
    ±5%
    ±2×2.5%
    10.5
    6.3
    3.15
    0.4
    D.yn11
    Yyno
    Y d11
    1.220.2226.5265860
    1002.030.311.83101150
    1252.390.341.753201190
    1602.840.371.653601230
    2003.330.431.553901300
    2503.960.511.44251480
    3154.770.611.44601590
    4005.760.741.34901760
    5006.930.871.35402150
    6308.281.041.256202380
    8009.91.251.057802800
    100012.151.4919103850
    125014.671.760.8510604600
    160017.552.130.7512105200

    S11 type double-winding non-excitation tap-changing oil
    immersed distribution transformer of 6~10kV


    Main technical parameters

    Rated
    capacity
    (kVA)
    VoltageConnection
    symbol
    Loss(kW)No-load
    current
    (%)
    Short circuit
    impedance
    (%)
    Weight (kg)
    H.V
    (kV)
    Tapping range of
    high voltage
    L.V
    L.V
    (kV)
    Load lossNo-load
    loss
    Oil
    weight
    Total
    weight
    (Y)(D)
    306
    6.3
    6.6
    10
    10.5
    11
    ±5%
    ±2×2.5%
    0.4Yyno
    Dyn11
    0.600.630.102.1497350
    500.870.910.132.0110430
    631.041.060.151.9140500
    801.251.310.181.8175580
    1001.501.580.201.6195690
    1251.801.890.241.5220760
    1602.202.310.281.4230910
    2002.602.730.331.32601035
    2503.053.200.401.22901220
    3153.653.830.481.13101450
    4004.304.520.571.03501750
    5005.105.410.681.04102170
    6306.206.200.810.94.54902450
    8007.507.500.980.85802980
    100010.3010.301.150.77103590
    125012.0012.001.360.67704410
    160014.5014.501.640.610005600

    S11 type double-winding non-excitation tap-changing full sealed
    oil immersed distribution transformer of 6~10kV

    Main technical parameters
    Rated
    capacity
    (kVA)
    VoltageConnection
    symbol
    Loss(kW)No-load
    current
    (%)
    Short circuit
    impedance
    (%)
    Weight (kg)
    H.V
    (kV)
    Tapping range of
    high voltage
    L.V
    (kV)
    Load lossNo-load
    loss
    Oil
    weight
    T otal
    weight
    (Y)(D)
    306
    6.3
    6.6
    10
    10.5
    11
    ±5% ±2×2.5%0.4Yyno
    Dyn11
    0.600.630.102.1495330
    500.870.910.132.0105420
    631.041.090.151.9135480
    801.251.310.181.8165565
    1001.501.580.201.6185655
    1251.801.890.241.5205745
    1602.202.310.281.4225865
    2002.602.730.331.32501005
    2503.053.200.401.22751180
    3153.653.830.481.12901400
    4004.304.520.571.03351695
    5005.155.410.681.03902110
    6306.206.200.810.94.54852390
    8007.507.500.980.85652920
    100010.3010.301.150.76903510
    125012.0012.001.360.67554350
    160014.5014.501.640.69605520

    S13type double-winding non-excitation tap-changing full sealed
    oil immersed distribution transformer of 6~10kV

    Main technical parameters
    Rated
    capacity
    (kVA)
    VoltageConnection
    symbol
    Loss(kW)No-load
    current
    (%)
    Short circuit
    impedance
    (%)
    Weight (kg)
    H.V
    (kV)
    Tapping range of
    high voltage
    L.V
    L.V
    (kV)
    Load lossNo-load
    loss
    Oil
    weight
    Total
    weight
    (Y)(D)
    306
    6.3
    6.6
    10
    10.5
    11
    ±5% ±2×2.5%0.4Yyno
    Dyn11
    0.600.630.082.1497350
    500.870.910.102.0110430
    631.041.060.111.9140500
    801.251.310.131.8175580
    1001.501.580.151.6195690
    1251.801.890.171.5220760
    1602.202.310.201.4230910
    2002.602.730.241.32601035
    2503.053.200.291.22901220
    3153.653.830.341.13101450
    4004.304.520.411.03501750
    5005.105.410.481.04102170
    6306.206.200.570.94.54902450
    8007.507.500.980.85802980
    100010.3010.300.830.77103590
    125012.0012.000.970.67704410
    160014.5014.501.170.610005600

    S13type double-winding non-excitation tap-changing full sealed
    oil immersed distribution transformer of 6~10kV

    Main technical parameters
    Rated
    capacity
    (kVA)
    VoltageConnection
    symbol
    Loss(kW)No-load
    current
    (%)
    Short circuit
    impedance
    (%)
    Weight (kg)
    H.V
    (kV)
    Tapping range of
    high voltage
    L.V
    (kV)
    Load lossNo-load
    loss
    Oil
    weight
    T otal
    weight
    (Y)(D)
    306
    6.3
    6.6
    10
    10.5
    11
    ±5% ±2×2.5%0.4Yyno
    Dyn11
    0.600.630.082.1495330
    500.870.910.102.0105420
    631.041.090.111.9135480
    801.251.310.131.8165565
    1001.501.580.151.6185655
    1251.801.890.171.5205745
    1602.202.310.201.4225865
    2002.602.730.241.32501005
    2503.053.200.291.22751180
    3153.653.830.341.12901400
    4.304.520.411.03351695
    5.155.410.481.03902110
    6.206.200.570.94.54852390
    7.507.500.700.85652920
    10.3010.300.830.76903510
    12.0012.000.970.67554350
    14.5014.501.170.67905520

    S9 type double-winding non-excitation tap-changing
    oil immersed distribution transformer of 6~10kV

    Main technical parameters
    Rated
    capacity
    (kVA)
    VoltageConnection
    symbol
    Loss(kW)No-load
    current
    (%)
    Short circuit
    impedance
    (%)
    Weight (kg)
    H.V
    (kV)
    Tapping range of
    high voltage
    L.V
    (kV)
    Load lossNo-load
    loss
    Oil
    weight
    T otal
    weight
    (Y)(D)
    306
    6.3
    6.6
    10
    10.5
    11
    ±5% ±2×2.5%0.4Yyno
    Dyn11
    0.600.630.132.1465275
    500.870.910.172.080360
    631.041.060.201.987415
    801.251.310.241.895470
    1001.501.580.291.6105545
    1251.801.890.341.5120640
    1602.202.310.401.4135745
    2002.602.730.481.3160880
    2503.053.200.561.22001035
    3153.653.830.671.12351220
    4004.304.520.801.02601405
    5005.105.410.961.02951655
    6306.206.201.200.94.53601975
    8007.507.501.400.84302355
    100010.3010.301.700.75202715
    125012.0012.001.950.65853335
    160014.5014.502.400.66603855

    S9 type double-winding non-excitation tap-changing
    oil immersed distribution transformer of 35kV

    Main technical parameters
    Rated
    capacity
    (kVA)
    VoltageConnection
    symbol
    Loss(kW)No-load
    current
    (%)
    Short circuit
    impedance
    (%)
    Weight (kg)
    H.V
    (kV)
    Tapping range of
    high voltage
    L.V
    (kV)
    Load
    loss
    No-load
    loss
    Oil
    weight
    Total
    weight
    306
    6.3
    6.6
    10
    10.5
    11
    ±5% ±2×2.5%0.4Yyno
    Dyn11
    0.60.132.8475295
    500.870.172.588395
    631.040.22.495420
    801.250.252.2103480
    1001.50.292.1115540
    1251.80.342130645
    1602.20.41.9145740
    2002.60.481.9175885
    2503.050.561.71951010
    3153.650.671.62301205
    4004.30.81.52551375
    5005.10.961.42851620
    6306.21.21.34.53501960
    8007.51.41.24052310
    100010.31.71.14902690
    1250121.9515503315
    160014.52.40.96253985

  • Outline and size

    S9-800-31500/35 transformer outline and installation size


    Note: The outline dimensions and track gauge dimensions covered in the catalog are only for reference.
    Welcome to contact us for accurate dimensions
    Outline size list

    Rated capacity
    (kVA)
    Outline and installation size (mm)
    LWHC1C2
    800220012902120820820
    1000234013402170820820
    1250245014802190820820
    1600257015502250820820
    200026901670230010701070
    250027202230236510701070
    315028302480241010701070
    400028902560253010701070
    500029102710279010701070
    630030502830308010701070
    800031602950321014751475
    1000032903190340014751475
    1250033703280354014751475
    1600034603340369014751475
    2000039803470385014751475
    2500046303930390014751475
    3150051604210396014751475


    Outline and size

    Note: The outline dimensions and track gauge dimensions covered in the catalog are only for reference.
    Welcome to contact us for accurate dimensions


    Outline size list
    Rated capacity
    (kV A)
    Outline and installation size (mm)
    LWHC1C2
    5011008401650550550
    10011809501950550550
    12512009802000550550
    160122010302015660660
    200135011002050660660
    250145012002100660660
    315170012202260660660
    400190012502350660660
    500210013002450820820
    630220013002500820820
    800230013502650820820
    1000238013702700820820
    1250240013902830820820
    1600246014502950820820

    Outline and size
    S11-10~2000/10 transformer outline and installation size



    Note: The outline dimensions and track gauge dimensions covered in the catalog are only for reference.
    Welcome to contact us for accurate dimensions

    Outline size list
    Rated capacity
    (kV A)
    Outline and installation size (mm)
    LWHC1C2
    30930587998400400
    509955951035400400
    6310207451050400400
    8010357501095400400
    10010407601145550550
    12510807701210550550
    16011207851230550550
    20012108101270550550
    25012708251420550550
    31513108401490660660
    400136510101525660660
    500139510251590660660
    630151510601625820820
    800185011801780820820
    1000189013501840820820
    1250194514201890820820
    1600229514001980820820

    Outline and size
    S13-10~2000/10 transformer outline and installation size

    Note: The outline dimensions and track gauge dimensions covered in the catalog are only for reference.
    Welcome to contact us for accurate dimensions

    Outline size list
    Rated capacity
    (kV A)
    Outline and installation size (mm)
    LWHC1C2
    30930587998400400
    509955951035400400
    6310207451050400400
    8010357501095400400
    10010407601145550550
    12510807701210550550
    16011207851230550550
    20012108101270550550
    25012708251420550550
    31513108401490660660
    400136510101525660660
    500139510251590660660
    630151510601625820820
    800185011801780820820
    1000189013501840820820
    1250194514201890820820
    1600229514001980820820

    Outline and size
    S13-M-30~2000/10 transformer outline and installation size



    Note: The outline dimensions and track gauge dimensions covered in the catalog are only for reference.
    Welcome to contact us for accurate dimensions


    Outline size list
    Rated capacity
    (kV A)
    Outline and installation size (mm)
    LWHC1C2
    30755655945400400
    50825665985400400
    638406751000400400
    808556801045400400
    1008906901095550550
    1259257001150550550
    1609607151180550550
    20010058001215550550
    25013307551240550550
    31513707701310660660
    40014258101340660660
    50014458151405660660
    63016009151470820820
    80016459351585820820
    1000185511251590820820
    1250191011301650820820
    1600201012201740820820


    Outline and size

    Note: The outline dimensions and track gauge dimensions covered in the catalog are only for reference.
    Welcome to contact us for accurate dimensions

    Outline size list
    Rated capacity
    (kV A)
    Outline and installation size (mm)
    LWHC1C2
    30800460880400450
    50850580940400450
    63860625960550450
    80870665975550450
    1008806701005550450
    1258907501040550550
    1609008201060550550
    2009108301080550550
    25012007701125550560
    31512608251185550560
    40012858451240660750
    500146010151380660750
    630161510601310660660
    80016769351375660660
    1000172611201425820820
    1250189612561485820820
    1600197513601545820820

    Outline and size
    S9-M-30~2000/10 transformer outline and installation size



    Note: The outline dimensions and track gauge dimensions covered in the catalog are only for reference.
    Welcome to contact us for accurate dimensions



    Outline size list
    Rated capacity
    (kV A)
    Outline and installation size (mm)
    LWHC1C2
    30755655945400400
    50825665985400400
    638406751000400400
    808556801045400400
    1008906901095550550
    1259257001150550550
    1609607151180550550
    20010058001215550550
    25013307551240550550
    31513707701310660660
    40014258101340660660
    50014458151405660660
    63016009151470820820
    80016459351585820820
    1000185511251590820820
    1250191011301650820820
    1600201012201740820820