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The street lamp controller is a device used to control the switching and brightness of street lamps. Its working principle is mainly achieved through light sensors or timers. The light sensor can sense the brightness of the surrounding environment and automatically control the switch and brightness of the ...

What is the working principle of the yaw system of a wind turbine? Here is an introduction: In order to ensure that the blade rotor of the wind turbine always works in a certain direction, a yaw system is installed inside the wind turbine…