科技与创新
科技與創新
과기여창신
Science and Technology & Innovation
2015年
2期
88-88,89
,共2页
地铁%接地变压器%选型设计%中性点
地鐵%接地變壓器%選型設計%中性點
지철%접지변압기%선형설계%중성점
metro%grounding transformer%selection of design%neutral point
为了防止系统在严重偏执中性电流的作用下出现跳闸等异常反应，系统要设置大容量的接地变压器用作中性点接地。重点研究了接地变压器的选型，而接地变压器的选型主要包括接地容量的验算、站内用电功率的计算、配合系统对接地变压器的影响、柔性供电方案对接地变压器的影响、接地变压器的并列方案等。
為瞭防止繫統在嚴重偏執中性電流的作用下齣現跳閘等異常反應，繫統要設置大容量的接地變壓器用作中性點接地。重點研究瞭接地變壓器的選型，而接地變壓器的選型主要包括接地容量的驗算、站內用電功率的計算、配閤繫統對接地變壓器的影響、柔性供電方案對接地變壓器的影響、接地變壓器的併列方案等。
위료방지계통재엄중편집중성전류적작용하출현도갑등이상반응，계통요설치대용량적접지변압기용작중성점접지。중점연구료접지변압기적선형，이접지변압기적선형주요포괄접지용량적험산、참내용전공솔적계산、배합계통대접지변압기적영향、유성공전방안대접지변압기적영향、접지변압기적병렬방안등。
In order to protect the system from tripping in the role of neutral current severe paranoia and other abnormal reactions, the system should set up a large-capacity ground neutral grounding transformer is used. Focuses on the selection of grounding transformer, and the selection includes grounding grounding transformer capacity checking, parallel programs affect the calculation of electric power station, with the system grounding transformer, the impact of flexible power supply scheme for grounding transformers, grounding transformers and so on.
