要讀懂電氣圖需要掌握哪些基礎知識
What basic knowledge needs to be mastered to understand electrical drawings
要讀懂電氣圖需要掌握以下基本知識。①了解常用電氣設備、電氣裝置，以及電氣元器件的原理、功能及基本結構、相互控制關系等。②了解電氣圖形符號和文字符號，以及電氣圖的有關標準和規程規范。③熟悉各種常見的基本 ...
The following basic knowledge should be mastered to understand electrical drawings. (1) to understand the principles, functions, basic structures and mutual control relations of common electrical equipment, electrical devices, and electrical components. (2) understand the symbols and symbols of electrical graphics, as well as the standards and regulations of electrical drawings. (3) familiar with the common basic.
2017-11-3 07:11
2017-11-3 07:11
變壓器差動保護基本原理及作用JFEM電機引接線JFEM電線JFEM電纜
Basic principle and function of transformer differential protection
差動保護是根據“電路中流入節點電流總和等于零”的原理制成的。在繞組變壓器的兩側均裝設電流互感器，其二次側按循環電流法接線，即如果兩側電流互感器的同級性端都朝向母線側，則將同級性端子相連，并在兩接線 ...
The differential protection is based on the principle of "the sum of the current in the circuit is equal to zero". The two sides of the winding transformer are equipped with current transformer, and the secondary side is connected by the cyclic current method. That is, if the side ends of both sides of the current transformer are facing the bus side, they will be connected to the same level terminals and connected at two.
2017-11-2 12:07
2017-11-2 12:07
電氣二次控制線路中380伏變120伏控制變壓器輸出端端子上可以一相接地嗎？JFEM電機引接線JFEM電線JFEM電纜
Can the output terminal of the 380 volt 120 volt control transformer in the electrical two control line be connected to each other?
電氣二次控制線路中380伏變120伏控制變壓器輸出端端子上可以一相接地嗎？控制變壓器（俗稱隔離變壓器或者變壓器）是用來改變交流電壓的設置，由鐵芯和線圈線成。它不僅能改變交流電的電壓，同時還能改變阻抗，在不超設計功率時，還可改變電流. 在不同的環境下，變壓器的用途也不同。
Can the output terminal of the 380 volt 120 volt control transformer in the electrical two control line be connected to each other? The control transformer (commonly known as isolating transformer or safe transformer) is used to change the AC voltage, which is made of iron core and coil line. It can not only change the voltage of alternating current, but also change the impedance. It can also change the electric current when the power is not designed. In different environments, the use of transformer is also different.
2017-11-2 09:56
2017-11-2 09:56
如何快速讀懂電氣圖紙?先看看這些建筑電氣常用的圖形符號JFEM電機引接線JFEM電線JFEM電纜
How to read the electrical drawings quickly? First, look at the graphic symbols commonly used in these buildings
如何快速讀懂電氣圖紙?先看看這些建筑電氣常用的圖形符號作為一名電氣工程行業的你，最主要的工作之一就是讀懂圖紙。電氣領域圖紙的符號繁多，偶爾也會遇到不認識或不熟悉的符號。下面小編就帶您了解一些建筑電氣常用的圖形符號。 電氣系統
How to read electrical drawings quickly? First, look at the graphic symbols used in electrical engineering. One of the main tasks of an electrical engineering industry is to read blueprints. There are many symbols in the electrical drawings, and occasionally the symbols that are not known or unfamiliar. The following small editor will show you some graphic symbols commonly used in building electricity. electrical system