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OLTC Transformer

On load tap changer transformer capacity up to 50MVA

The best hot selling capcity including transformer 400kva,transformer 500 kva,transformer 800kva

Max power transformer voltage Up to 69-kV

Max power transformer BIL Up to 350kV

Single Phase or Three-Phase power transformer

ONAN/ONAF/OFAF/ONWF transformer

55⁰C, 65⁰C, Others temperature rise power transformer type

Copper or Aluminum transformer winding

Circular Disc, Circular Layer, Rectangular Layer transformer core

Type Switches: Vacuum or Resistive OLTC

Seismic Zone: Up to 4 Ambient Temperature Range: -40⁰C to +40⁰C

Standards: C57.12.10, C57.12.00, IEC60076


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  • Description
  • Technical Specification
  • Comments

  • farady 400kva transformer uses cutting edge technology when manufacturing on load tap changer 500kva transformers to ensure reliability, durability and affordability. All of our OLTC 800kva transformers covering transformer 400kva,transformer 500 kva,transformer 800kva until 50MVA
    are up to C57.12.10, C57.12.00 and IEC standards
    The on-load tap changer (OLTC) is used to change the tapping connection of the on load tap changer 500kva transformer winding to change the voltage ratio while the transformer 400kva is still in service without interrupting the load An on-load tap-changer gear comprises two major components, the tap selector and the diverter switch. The tap selector selects the tapping and its electrical contacts are designed to carry the rated current of the transformer 500kva but not to make or break this current.During the operation of diverter switch the transition resistors bridge the tap in use and the tap next to be used, thereby limiting the circulating current due to the inter-tap voltage of transformer 800kva
  • SZ11-M series three phase two windings on-load tap changer transformer



    Type


    Voltage combination

    Vector group

    Loss(W)

    Impedance%Dimension(L*W*H)mmWeight(kg)
    Primary (KV)Tapping range
    Secondary (KV)No Load lossFull load loss
    SZ11-200
    6
    6.3
    6.6
    10
    10.5
    11
    13.2
    13.8
    15

    ±3x2.5%
    ±4x2.5%
    ±5x2.5%
    0.4 or other
    Yyn0 or Dyn1143035004.01780*870*1450
    1550
    SZ11-250
    51041601940*880*1560
    1600
    SZ11-315
    61050101980*900*1610
    1630
    SZ11-400
    73060502050*1000*1650
    2030
    SZ11-500
    86072802100*1100*1700
    2110
    SZ11-630
    104082802190*1200*1800
    2670
    SZ11-800
    123099002200*1250*1880
    2900
    SZ11-1000
    1440121502250*1280*1900
    3400
    SZ11-1250
    1760146702300*1300*1980
    4000
    SZ11-1600
    2120175502400*1390*2000
    5500
    SZ11-2000
    2260179102490*1450*2100
    6000
    SZ11-2500
    2680199502600*1490*2240
    6500
    Note: *The above parameter is only subject to our standard design, special requirement can be customized

Contact Us

+86-577-61722510

Our friendly customer service people are here to help you from 8.30am to 5pm Unique

Fax:+(86)-577-61777257

E-mail:info@farady.cn

Add:Su\\\'ao,Liushi,Yueqing,Zhejiang,P.R.China

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