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特高压直流输电工程阀厅接地开关布置优化(英文)
特高压直流输电工程阀厅接地开关布置优化(英文)
The switches installed in converter station valve halls in Xiangjiaba-Shanghai ±800 kV UHVDC project are expensive and maintenance inconvenience.Two optimization schemes of the valve hall grounding switches for researches on the function and operation of the switchers are presented.The two schemes are both studied in detail,with one way of abolishing all grounding switches on transformer valve side,and another way of partly cancelling the switches.Detailed analysis is further carried out for the feasibility and the pros and cons of the two schemes.Based on the comparison of two schemes,the partial reduction of grounding switches is selected to get a simulation with an EMTDC model.Plus in order to verify the reliability of the simulating results,a field test is carried out in Fengxian converter station with the partly switches cancellation scheme.The test results proved that using only one switch can still release residual charge in the valve hall in a relatively short period.Optimized designs of the valve hall switches can save both space and costs of the project.
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家装开关、插座的分布 上传时间： 2012-3-18 15:36:38 来源： 装酷网 网友评论 0 条 加瑞装饰给出的各自然间开关、插座数量的参考建议： （一）主卧室：开关 2 个（主卧室顶灯的门口和床头双控），插座 6 个（两个床头灯、空调、电话、电视、 地灯）； （二）次卧室（儿童房）：开关 2 个（次卧室顶灯的门口和床头双控），插座 4 个（空调、电话、写字台 灯插座、备用插座）；（三）书房：开关 2 个（书房顶灯的门口和书桌双控），插座 6 个（网口、空调、 电话、书房台灯、电脑、备用插座）； （四）客厅：开关 1 个（客厅顶灯），插座 8 个（电视 3 个、饮水机、空调、电话、地灯、备用插座）； （五）卫生间：开关 3 个（卫生间顶灯、镜前灯、排风扇或浴霸），插座： 4 个（洗衣机、吹风机、电热 水器、电话）； （六）厨房（厨房、餐厅一体）：开关 2 个（厨房顶灯、餐厅顶