35kv变电所国内外的研究现状

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2025-03-25 11:39:24
推荐回答(2个)
回答1:

摘要:文章从不同角度、多方面系统地阐述了35kV变电所建设与改造中要建立的相关组织、前期规划与设计、所址的选择、所区规划、设备选型、通信系统、土建施工、设备安装与调试及投运等环节所应该做到的工作及注意事项。
关键词:农网改造 规划 验收

作为县级供电企业,35kV变电所建设与改造是一项不可忽视的重要工作,它不仅资金投入多、技术含量高、供电设备比较集中,而且正值国家农网建设与改造的攻坚阶段,这就要求我们在建设与改造35kV变电所时,一定要做好以下几方面的工作。

1建立35kV变电所建设的相关组织

(1)建立由局长、副局长、总工程师组成的工程建设领导委员会,负责整个工程的全面工作。

(2)领导委员会下设领导小组,各小组分管不同的工作。设备材料采购组负责设备、材料的采购、运输及进出库管理,要保证设备质量、技术指标达到设计要求;工程监察组负责在施工过程中对施工人员进行监护、监督管理,对工程质量、技术标准进行监督监察,保证工程的进度和质量;工程施工组负责工程的施工,施工组要设专责人、安全员、技术员等;调试投运组负责设备安装完毕后的设备原始资料归档、设备的交接试验及调试和工程投运;工程验收组对进出库的设备材料的质量及工程施工质量、进度、投运前的准备工作进行检查验收。

2 35kV变电所工程建设的前期规划与设计

(1)与城建部门结合,根据本单位的20年电力规划和电力负荷分布情况及有关文件精神,按照国家农网建设与改造的具体要求,做好工程建设与改造的规划设计及说明书,应附有相应变电所地理位置图,电力负荷分布图、电力负荷规划图及线路走径图等。

(2)根据规划,设计出相应的初设图纸、施工图纸,根据技术参数和要求,让信息传送给生产厂家,以生产出所需的设备和材料。

(3)作出工程的概算。

3所址的选择

(1)所址选择应结合城建部门的城镇规划,保证10~20年内不出现较大变更。

(2)所址应尽量选择在交通便利、靠近公路的地方,尽量避开可耕地,最大限度控制占地面积。

(3)所址应避开高度污染区。

4所区规划

(1)所内要保证环境优美,向花园式变电所发展,地面尽量减少硬化面积,以种植花草为主。

(2)变电所围墙应采用铸铁花墙为主,高度不得低于2�3m,高压区和生活区也以花墙相隔。

(3)变电所和供电所宜规划在同一所区,两所之间以花墙相隔。

5常规型变电所设备选型

(1)设备的选择配置应力求小型化,要保证技术先进、工作性能稳定可靠,质量有保证且售后服务跟得上。

(2)所内应采用两台主变,要求节能且有载调压型,一般采用S10或SZ10型变压器,S11型也在发展之列,变压器容量要根据电力负荷情况而定,但两台主变容量比不应超过1∶3,阻抗电压、变比、接线组别应相同,误差不超过±5%,为以后变压器并列运行提供条件。

(3)所用变采用1~2台S10-50kVA/35/0.4kV直配变,装在35kV进线外侧或35kV母线上,所用变采用跌落熔断器控制。

回答2:

现状还行~

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