S11-M: Series Hermetically Sealed Oil-Immersed Power Transformer

Our three-phase oil-immersed distribution transformer adopts new type insulation structure for its body that further improves its short-circuit resistant capacity; its iron core is made of high quality cold-rolled steel sheet; all HV winding's are made of oxygen-free copper, and adopt mufti-layer barrel type structure; all fasteners have gone through special tightening treatment. The product is featured with high efficiency, low loss, it is able to save much electric energy and running cost, has significant social benefits, is a high-new-tech product popularized by the nation.
Rated capacity Installation dimension
(KVA) L(cm) W(cm) H(cm) C1 C2
30 98 87 123 55 55
50 101 90 128 55 55
63 103 92 131 55 55
80 105 93 137 55 55
100 107 97 142 55 55
125 109 99 143 55 55
160 113 99 147 66 66
200 115 101 152 66 66
250 120 108 157 66 66
315 121 110 162 66 66
400 142 90 173 66 66
500 145 92 179 82 82
630 155 100 195 82 82
800 170 104 199 82 82
1000 178 113 205 82 82
1250 188 123 210 82 82
1600 204 138 226 82 82
2000 235 118 260 107 107
2500 245 112 272 107 107

Reliable structure

Depending on mature technologies, we made a lot of improvements on the basis of traditional structure:
  • Spiral winding with longitudinal oil duct that enjoys good inner heat dissipation;
  • Effective support at winding end surface that further improve the short-circuit resistant capacity of winding;
  • Adoption of new hoisting structure and body positioning structure that guarantee safety in long-distance transport and in service;
  • More unique and reliable structures for your option;
  • Adoption of transformers with more excellent performances to improve the technical content.

    • Working conditions

  • Installation height: altitude shall not exceed 1000m
  • Ambient temperature: -40℃~40℃

    • S11-M-30-2500 / 20-10 transformer

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