1,11kV, S11 ,3 phase oil immersion power transformer
2,high efficiency, low loss
3,Low losses and Low Noise

Describtation of Product:

The three-phase oil-immersed distributing transformer applies new type insulating structure and makes short-circuit resistances 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.

Standards

GB 1094.1-1996 GB 1094.2-1996 JB/T 10088-2004

GB 1094.3-2003 GB 1094.5-2003 GB/T10237-1988

GB/T 6451-1999 GB/T 7595-1987 JB/T 3837-1998

Technical Data:
1) Rated Power: 30~2500kVA
2)Rated HV: 6KV,6.3KV, 10KV, 10.5KV,11KV,15KV,20KV,22KV,33KV 35KV,36KV
3)Rated LV: 0.4kV,0.415KV,0.38KV
4)Phase No. :single or three;
5)Rated frequency: 50Hzor 60 Hz;
6)Vector group: Dyn11, Yyn0 or others;
7)Short circuit impedance: 4%, 4.5% ,6% or others in accordance to client needs;
8)Tapping voltage regulation type: off-load or on-load;
9)Tapping range: +/-2*2.5% / 5%or others in according to client needs;
10)Cooling type: oil nature, oil cooling

Performance Parameter List:

Note: 1. Load loss values above the oblique line in the table are applicable to the Yyn0 connection group, and the values below the oblique line are applicable to the Dyn11 or Yzn11 connection group.

2. The list shows main performance parameters of a three-phase duplex winding off-circuit-tap-changing distribution transformer. Customized transformers of different specification are available upon the demand of users.

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