要讀懂電氣圖需要掌握哪些基礎(chǔ)知識(shí)

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(shí)。①了解常用電氣設(shè)備、電氣裝置，以及電氣元器件的原理、功能及基本結(jié)構(gòu)、相互控制關(guān)系等。②了解電氣圖形符號(hào)和文字符號(hào)，以及電氣圖的有關(guān)標(biāo)準(zhǔn)和規(guī)程規(guī)范。③熟悉各種常見(jiàn)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(dòng)保護(hù)基本原理及作用JFEM電機(jī)引接線JFEM電線JFEM電纜

Basic principle and function of transformer differential protection

差動(dòng)保護(hù)是根據(jù)“電路中流入節(jié)點(diǎn)電流總和等于零”的原理制成的。在繞組變壓器的兩側(cè)均裝設(shè)電流互感器，其二次側(cè)按循環(huán)電流法接線，即如果兩側(cè)電流互感器的同級(jí)性端都朝向母線側(cè)，則將同級(jí)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(jī)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(lái)改變交流電壓的設(shè)置，由鐵芯和線圈線成。它不僅能改變交流電的電壓，同時(shí)還能改變阻抗，在不超設(shè)計(jì)功率時(shí)，還可改變電流. 在不同的環(huán)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(hào)JFEM電機(jī)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(hào)作為一名電氣工程行業(yè)的你，最主要的工作之一就是讀懂圖紙。電氣領(lǐng)域圖紙的符號(hào)繁多，偶爾也會(huì)遇到不認(rèn)識(shí)或不熟悉的符號(hào)。下面小編就帶您了解一些建筑電氣常用的圖形符號(hào)。 電氣系統(tǒng)

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