文档介绍：摘要
该变电所是位于南方某城的边缘枢纽变电所。气候湿热、多风、有盐雾天气及年雷暴日数较多,在设计及选择设备过程中都应考虑进去。
本变电所设计装有两台主变压器,220kV侧进线为两回路,110kV侧出线为六回,10kV侧出线为六回。并带有一处二类负荷,设计的重点是保证供电的可靠性。220kV及110kV侧采用双母线接线形式且110kV侧带旁路母线,10kV侧采用单母线分段的接线形式。设备选择上,必须考虑安全和经济性,保证所选的电气设备性能好、价格低廉,在配电图的布置方面,高压侧采用分相中型布置,中压侧则沿用了传统的苏联式的普通中型布置,而低压侧采用屋内配电装置,布置在开关柜中。而二次部分与继电保护方面的设计突出了某些特点。
关键词:220kV 变压器主接线电气设备测量及保护装置
Abstract
This substation is a regional substation which locates the edge of some county in Guangdong province. Suffering the influence of special weather condition, hot and damp、windy、salt fog and more thunder per year, therefore , all that should offer consideration in the course of designing and choosing equipments.
There are two main transformers in this substation, 220 kV is double return circuits internal wire, 110kV has 6 circuits external wire, 10kV has 6 circuits external wire with a class II load. The focal point in the main wire connection design is the dependability of guaranteeing to supply power. 220 kV and 110 kV adopt double bus bar wire connection form with a by-pass bus bar on the side of 110kV, 10kV adopts single bus bar with a segment wire connection form. Equipments choose bases on the premise that guaranteeing to supply power safely, have given consideration to economy, possibly adopt the new type products that have fine electric performance and low price, and at the meantime try some perspective unconventional products. In the part of distribution apparatus, high-voltage adopts medium mode with phase splitting, medium-voltage continues to use traditional Soviet mode while being ordinary medium mode and low-voltage adopts room distribution installation, being fixed up in the switch cupboards. Design of relay protection and secondary part outstand character that convenient on measure、control,、management and protection. The whole programming for the district of substation is beautiful, environmental protection, outstanding practicable, functional and sustainable and expansionary for keeping on developmen