Electrical energy is available in the form of Alternating current (AC) or Direct current (DC). In alternating current, the current reverses direction 50-60 times in a second depending on thefrequency. The main differences between AC and DC are summarized in the table below: ...
某些辅助文字符号本身具有独立的、确切的意义,也可以单独使用。如“N”表示交流电源的中性线,“DC”表示直流电,“AC”表示交流电,“PE”表示保护接地等。 电气线路中常用的辅助文字符号见表1-2所列。 表1-2 电气线路中常用的辅助文字符号 3.字母+ 数字代码组合的文字符号 字母+数字代码是目前最常采用的一种文字...
DC/AC electrical power converter device for a variable-speed motor and a high-speed motor A DC/AC electrical power converter device having inlet terminals for electrically connecting to a DC electricity power supply network, outlet terminals for... G Boulet,W Bourse,P Rollin,... 被引量: 0发...
This is because railway rolling stock uses a DC power distribution system so that batteries can be used to maintain electrical power in the event of a generator failure. These converters need to be constructed according to EN 50155 to ensure harsh environmental conditions do not influence its ...
The alternator is a special type of electrical generator designed to generate alternating current. AC electric power is widely used in industrial and residential applications. DC Current The flow of electric charge in only one direction is known as direct current (DC). DC is also referred to as...
模块化 DC/DC 转换器相较于分立解决方案的优势 Date Of Publication:2025-02-08 Click-Through Rate:7 复杂的现代电路通常包含大量元器件,例如微控制器、IC、DSP 和 FPGA 等。每个元器件均具有特定的供电电压要求。由共享“中央”电源和大量局部转换器模块构成的分布式电源系统,成为能够满足这种要求的最高能效解决...
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Invention corresponds to electrical engineering and more precisely to electrical drives of AC electrical trains. Target of invention is to improve energetic parameters of AC electrical trains DC electrical drives in respect to the supply contact network. Target is reached to introduce in system of ...