某水电站2010年晋级考试电气理论试卷（Electrical test papers of a hydropower station in 2010）.docVIP

下载本文档

2
0
约1.31万字
约 13页
2017-09-23 发布于河南
举报
版权申诉

某水电站2010年晋级考试电气理论试卷（Electrical test papers of a hydropower station in 2010）.doc

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

某水电站2010年晋级考试电气理论试卷（Electrical test papers of a hydropower station in 2010）

某水电站2010年晋级考试电气理论试卷（Electrical test papers of a hydropower station in 2010） Electrical test papers for a power station in 2010 Name score Fill in the blanks (40 points, 1 cents per space) 1, A, B, C three-phase power station bus respectively with yellow, green and red colors mark. 2. The resistance of a conductor is proportional to the length of the conductor, inversely proportional to the carrying area of the conductor, and is related to the conductor material. 3. The current in the circuit is measured by a ammeter, and the measuring table is connected in series with the circuit. 4, the more series resistance, the higher the equivalent resistance, the more parallel resistance, the smaller the equivalent resistance. 5 、 the frequency of alternating current in Chinas power system is 50Hz, and the period is 0.02 (1/50). 6 the conductors resistance to the current is called resistance. High resistance means that the conductor has poor or poor electrical conductivity. 7. The connection of three-phase power winding is connected by star and triangle. 8 the magnetic field acting around the magnet is called the magnetic field. 9 、 the function of turbine oil in the plant is lubrication, heat dissipation and pressure operation. 10, the power station production equipment is composed of three main equipments: water turbine, generator and transformer. 11, the Copper Creek power station in the excitation mode for signal self rated excitation current is 460A, the rated excitation voltage is 225V. 12. The cooling water pressure of the power station is 0.15-0.25 Mp alpha. When the pressure of the pressure tank rises to 4 Mp alpha, the oil pressure pump stops automatically. 13, power station GIS high voltage switchgear room, switch room SF6 gas rated working pressure is 0.6MPa, alarm pressure is 0.52MPa, locking is 0.5MPa, gas chamber SF6 gas rated working pressure is 0.4MPa, alarm is 0.35MPa. 14, the three elements of alternating current are maximum, angular frequency and initial ph