公开(公告)号：WO2010132968A1

公开(公告)日：2010-11-25

申请号：PCT/BR2010/000163

申请日：2010-05-18

Applicant: SIEMENS LTDA ,  ALSINA NAVARRO, Martin ,  MEDEIROS, Jose Carlos ,  BETIOL, Eledilson Clayton ,  MARTINATO, Marilucia ,  JUNQUEIRA DIAS, Renan ,  DA SILVA, Jean Carlos

Inventor： ALSINA NAVARRO, Martin ,  MEDEIROS, Jose Carlos ,  BETIOL, Eledilson Clayton ,  MARTINATO, Marilucia ,  JUNQUEIRA DIAS, Renan ,  DA SILVA, Jean Carlos

IPC: H01F27/32

CPC classification number: H01F27/324

Abstract: It is described a single-phase or three-phase distribution electric transformer, of solid insulation, for use in aerial installation, in poles, in platforms or pedestals, or installation in underground distribution network for operation in air environment, semi-submerged or submerged. Such transformer comprises at least one high voltage winding (3) and at least one low voltage winding (2) concentrically assembled around a core column (1.2,1.3), the low voltage and high voltage windings (2,3) being electrically isolated from a solid material, a core window (20) being defined as a space between two core columns (1.2,1.3), the transformer comprising at least one electrical insulation sheet (4) assembled on at least a core window (20) of said transformer, the assembly of the electrical insulation sheet (4) being defined in the longitudinal direction (300) of the transformer. Such sheet (4) avoids the formation of spiral around the core by immersion water or conductive dust. The use of this dry transformer in the underground distribution networks in the cities offers more safety to the population, because the dry transformer does not explode, apart from eliminating the risk of environmental contamination through the leakage of oil from transformers in oil. Once the dry transformer of the invention does not explode, the underground installation chambers can be simpler and more economic once they do not need to be resistant to explosion.

Abstract translation: 描述了用于空中安装，极地，平台或基座中的固体绝缘的单相或三相配电变压器，或安装在地下配电网中，用于在空气环境，半浸没或淹没 。 这种变压器包括至少一个高压绕组（3）和至少一个同心组装在芯柱（1.2,1.3）周围的低压绕组（2），低压和高压绕组（2,3）与 固体材料，芯窗（20）被定义为两个芯柱（1.2,1.3）之间的空间，所述变压器包括组装在所述变压器的至少一个铁心窗（20）上的至少一个电绝缘片（4） 电绝缘片（4）的组装被限定在变压器的纵向（300）上。 这种片材（4）避免了浸入水或导电粉尘在芯周围形成螺旋。 由于干式变压器不会爆炸，除了通过油中的变压器的油泄漏消除环境污染的风险外，在城市的地下配电网络中使用这种干式变压器为人们提供了更多的安全性。 一旦本发明的干式变压器不爆炸，一旦它们不需要耐爆炸，地下安装室就可以更简单和更经济。