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S11/13 10kV、20kV 油浸式配电变压器
10kV, 20kV
oil-immersed distribution transformer

型号含义 / Model meaning

S 11 - M □ / □

高压侧电压等级 High voltage side voltage level
容量 Capacity (kVA)
全密封 Fully sealed
设计序号 Design Number
三相 Three phase

产品特点 / Features
● 铁芯
铁芯选用高导磁晶粒取向冷轧硅钢片。铁芯为新式铁芯，全斜接缝迭积式铁芯，其铁芯柱为多级阶梯的圆截面，铁轭与铁芯为等截面。
● 绕组
绕组采用瓦楞油道，不浸漆工艺，紧缩带绑扎；绕组均为同心式线圈：高压绕组具有对应分接电压要求的抽头，引至分接开关上，开关安装在箱盖上、
且需切断电源后方可变换分接电压。
● 安全保护装置
30~2000kVA 变压器装有压力释放阀；
根据用户需求可安装具有报警和跳闸端子的气体继电器；
● 油温测量装置
变压器均装有玻璃温度计的管座，管座设在油箱顶部，伸入油内 120±10mm;
1000~2000kVA 变压器装有户外式信号温度计；
● 变压器油箱
变压器油箱由波纹壁构成，表面采用粉尘
喷涂、漆膜牢固。波纹散热片不但具有冷却功能，而且具有“呼吸”功能，波纹散热片的弹性可补偿因温度升降而引起的变压器油体积的变化。因此全
密封变压器没有储油柜，降低了变压器整体高度；
变压器在封装时采用真空注油工艺，完全去除了变压器中的潮气，变压器油不与空气接触。有效地防止氧气和水分侵入变压器而导致变压器绝缘性能下
降和变压器油老化的可能，因此不定期进行油样试验；
● Iron core
The core is made of high permeability magnetic grain oriented cold rolled silicon steel sheet. The iron core is a new type of iron core, and
the full oblique jointed iron core has a core section of a multi-stepped step, and the iron yoke and the iron core have equal sections.
● Winding
The winding adopts corrugated oil passage, no immersion paint process, and the tightening belt is tied; the windings are concentric coils:
the high-voltage winding has taps corresponding to the tapping voltage requirements, and is led to the tap changer, the switch is mounted
on the box cover, and needs to be cut off. The tap voltage can be changed after the power supply.
● Safety protection device
The 30~2000kVA transformer is equipped with a pressure relief valve;
A gas relay with an alarm and trip terminal can be installed according to user requirements;
● Oil temperature measuring device
The transformer is equipped with a tube holder of a glass thermometer, and the tube seat is arranged at the top of the oil tank and protrudes
into the oil by 120±10 mm;
The 1000~2000kVA transformer is equipped with an outdoor signal thermometer;
● Transformer tank
The transformer tank is composed of corrugated walls with dust on the surface.
Spray and paint film is firm. The corrugated fins not only have a cooling function, but also have a "breathing" function. The elasticity of the
corrugated fins can compensate for the change in the volume of the transformer oil caused by the temperature rise and fall. Therefore, the
fully sealed transformer has no oil storage cabinet, which reduces the overall height of the transformer;
The transformer is vacuum-filled during packaging, completely removing the moisture in the transformer, and the transformer oil is not in
contact with the air. Effectively prevent oxygen and moisture from intruding into the transformer, resulting in a decrease in the insulation
performance of the transformer and the possibility of aging of the transformer oil, so the oil sample test is performed irregularly;
Product Catalogue 08