电气基础知识(Basicelectricalknowledge)TheopportunityofTXTislikeahairontheheadofabaldman.Youcatchitandyoucan'tcatchit.Ispoketoyoufortenminutes,butIdidn'thaveanyargumentwithyou.So,theremustbesomeonebetweenuswhobecomeshypocritical!Mistakesaretemporaryregrets,missingisalwaysregrets.Meetingisthefate,knowingisapart,...
电工基本常识(BasicknowledgeofElectrotechnics)Left,right,andrightThreephasefivewiresystemwithcoloryellow,green,red,lightblue,respectively,U,V,W,N,protectivegroundingwire,doublecolor(PE)Transformerinoperation,thetransformerphasecurrentshallnotexceedtheratedcurrent;themaximumimbalancecurrentshallnotexceed25%oftherated...
电力基础知识(Basic knowledge of electricity) I. composition of an electric power system A complete power system consists of various types of distribution around the power plant, the step-up and step-down substation, transmission lines and power users, they are complete electrical production, voltage...
电工基础名词知识(BasicknowledgeofElectricalEngineering)Basicknowledgeofmaintenanceelectrician(1)resistivity--alsocalledresistancefactororspecificresistance.IsameasureoftheperformanceofconductivematerialwiththeletterP,saidthattheunitsofohms*mm/squaremeters.Innumericalterms,equaltothematerialtodo1meterslong,crosssectional...
电路基础知识点(Basicknowledgeofcircuit)Mainknowledgeofelectricityandrelatedexercisescircuitposition:posedofapowersupply,anelectricappliance,::4、seriescircuit::Thecurrenthasonlyonepassage,,、parallelcircuit::Thecurrenthastwoormorechannels,:,current,voltage,resistancecurrent:unittime(Is)throughtheconductorcrosssection...
(Basic knowledge of electrical engineering and basic knowledge of maintenance electrician.)(1) resistivity - - also called resistance factor or specific resistance. Is a measure of the performance of conductive material with the letter P, said that the units of ohms * mm / square meters. In ...
电气工程基本知识(Basic knowledge of Electrical Engineering) Basic knowledge of electrical engineering summary (a) DC system 1. and two wire DC system DC two wire distribution system should be grounded. But the following may be grounded by grounding detector and in limited field only to the power...
The size of the current known as the strength of the current (the current symbol I), is the amount of charge through a wire section refers to the unit time per second through 1 coulombs called 1 "ampere" (A) is the basic unit of all electrical AMP in the international 收藏 分享 ...
ElectricalandElectronicalEngineering, Mr. Nagesh has worked in all the steps involved in the wire [...] sampsistemi.com sampsistemi.com 从电气电子工程专业毕业之后,Nagesh先生从事的工作涉及了电线电缆制造的所有步骤:计划、生产、市场营销和销售、产品研 发和设计。
This study discusses the development of a basic electronics knowledge (BEK) assessment as a pretest activity for undergraduate students in engineering and related fields. The 28 BEK items represent 12 key concepts, including properties of serial circuits, knowledge of electrical laws (e.g., ...