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所在平台: Udemy |
课程主页: https://www.udemy.com/course/know-about-circuit-breakers-part-2/
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**课程名称：** 了解断路器 - 第二部分 **课程概述：** 本课程是关于电气面板领域中至关重要的电路保护装置知识的第二部分。在电气面板维修和维护领域工作的技术人员，需要掌握大量与此相关的知识和细节。本教程涵盖了所有这些基础信息。 断路器是一种自动开关，旨在保护电气电路免受过载或短路引起的过电流损害。其基本功能是在检测到故障后立即中断电流。与通常用于此目的的保险丝不同，断路器的独特之处在于，一旦被激活，它可以被重置，恢复正常运行。 虽然所有断路器系统在操作上都有共性，但其细节会根据电压、电流额定值和断路器类型而有显著差异。断路器通过检测电气电路中的故障条件来工作。 对于低电流断路器，故障检测通常在设备内部完成，通常利用电流的加热或磁效应来找到故障。而对于大电流或高电压断路器，通常会配备一个保护继电器装置来感知电路中的故障情况。
Knowledge of circuit protection devices is vast and important in the field of electrical panel.There are many facts and details to know in this section.In this tutorial, we have covered all the essential information that should know to a technician working in the field of Electrical Panel Repair and Maintenance.A circuit breaker is an automatic switch that is designed to protect an electrical circuit from damages caused by excess current from an overload or short circuit.Its basic function is to block the current flow after a fault is detected. Unlike a fuse normally used for this purpose, a circuit breaker is unique in that it can be set to resume normal operation once it has been activated.All circuit breaker systems have common features in their operation, but details vary substantially depending on the voltage, current rating and type of the circuit breaker.The circuit breaker detects a fault condition in the electrical circuit.In low current circuit breakers, this is usually detecting within the device itself.Typically, the heating or magnetic effects of electric current are employed to find the fault.Circuit breakers for large currents or high voltages are usually with a protective relay device to sense the fault condition in the electric circuit.
