三峡发电机中性点接地方式选型及装置的计算

来源 :水电站机电技术 | 被引量 : 0次 | 上传用户:qhxfxfxf
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
本文对三峡左岸电站水轮发电机中性点接地方式的选取进行了分析,对三峡发电机中标厂商所提交的发电机中性点接地变压器的选型进行了复核计算,指出发电机中性点接地变压器的参数选择必须与发电机定子一点接地保护相配合。在发电机定子绕组绝缘电气强度有较高的安全系数的情况下,接地电阻值的选取应主要服从与定子一点接地保护的配合及限制接地故障电流的需要。
其他文献
Background:Highly automated cage-rearing systems are becoming increasingly popular in China.However,a high stocking density can cause oxidative stress and decre
Background: To investigate the effects of dietary crude protein(CP) restriction on muscle fiber characteristics and key regulators related to protein deposition
期刊
在企业管理中,内部审计对于保证企业健康稳定发展具有重要的现实意义.但是,随着市场经济体制改革的深入,市场环境不可预测,内部审计工作给企业经营带来一定风险.本文主要分析
Maternal recognition of pregnancy refers to the requirement for the conceptus(embryo and its associated extraembryonic membranes) to produce a hormone that acts
Background:Phosphorus is an essential nutrient to maintain poultry health and performance.The objective of this study was to evaluate the effect of dietary phos
Background: The intestinal epithelium is an important barrier that depends on a complex mixture of proteins and these proteins comprise different intercellular
Background: The present experiment was performed to assess the effects of different sources of milk on the growth performance, serum metabolism, immunity, and i
目前上市公司会计信息披露还存在着披露不及时、披露不充分以及会计诚信缺失等问题,这严重制约了我国上市公司的稳定发展,同时也对我国市场经济的稳定发展非常不利.因此,人们
Diphtheria toxin A (DTA), a segment of the diphtheria toxin (tox), inhibits protein synthesis in cells. When released from a cell, DTA is nontoxic and cannot en
Background:This study was designed to evaluate the efficacy of DL-selenomethionine(DL-SeMet) supplementation on growth performance,antioxidant status,plasma sel