20KV S9/S11 series oil immersed power transformer

1.Certificate:CCC,CTQC 2.Top 10 in china 3.ISO9001,ISO14001,OHSAS18001 4.Apply for IEC,ANSI,GB.

    The three-phase oil-immersed distributing transformer applies new type insulating structure and makes short-circuit resistance strong. The iron core is made of high-quality cold-rolled silicon-steel plate. High –voltage winding group is made up of high-quality oxygen-free copper lines and it adopts multilayered drum type structure. All fasteners have been processed with special treatment to prevent them from loosening. As high-tech product that promoted by the country, the product has many advantages such as high efficiency, low loss. Its social benefits are remarkable that it will save much of electricity consumption and operating cost.

---------------------------------product code (D: Single phase, S: three phase,

F: ONAN Z: OLTC

---------------------------------performance code (7, 8, 9, 10, 11, 12)

---------------------------------special usage or special structure code (M-hermetically sealed

                                                        R: wound core)

---------------------------------rated capacity KVA

---------------------------------voltage class KV

---------------------------------special application environment code (GY: plateau

WF: anticorrosion TA: dry tropics TH: humid tropics)

20KV S9/S11 series oil immersed power transformer