为满足经济发展的需要，根据有关单位的决定修建1座110KV盐北变电所。

本工程初步设计内容包含变电所电气设计，新建的盐北变电所从110KV侧东郊变电所受电，其负荷分为35KV和10KV两个电压等级。

通过技术和经济比较，现采用下列方案：

1.　　内设两台三绕组变压器，电压等级为121/37.8/11。

2.　　110KV进线采用内桥接线形式。

3.　　本工程初步设计内容包括变电所电气设计。

4.　　35KV和10KV配电装置同样采用单母线分段接线。

5.　　所用电分别从10KV两端母线获得。

-For satisfying the demand that economy development, the authorities concerned decide to construct a YanBei transformer substation.

This engineering first step design contents includes the transformer substation of electric Design. The new-et up salt a YanBei transformer substation obtain power form Dong Jiao substation (110KV) . There are two kinds of local loads in the substation,. One is 35KV,the other is 10KV.

Pass the technique to compare with the economy, adopt the following scheme now:

1.　　There are two three-winding transformers in the substation. Voltage grade adopt 121KV 38.5KV and 11KV.

2.　　For 110KV main electrical connections shall adopt inside bridge connection.

3.　　The 110KVenters the line 2 return, The adoption builds trolley wire.

4.　　For 35KV and 10KV main electrical connections employ single sectionalized bus.

5.　　Auxiliary power system get power form the 10KV sectionalized bus.