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Product Overview: The DCM-633/DCM-635 series of disturbance-free rapid switching devices (also known as plant power rapid switching devices) are suitable for achieving disturbance-free switching of power supplies in the plant power systems of petrochemical, steel, metallurgical, thermal power, or power generation plants. In the event of a failure in the system’s power supply, this device can quickly disconnect the faulty power source based on the system’s operating status. It then checks the voltage quality on both sides of the circuit that is to be connected; if the conditions for connection are met, it activates the backup power supply. This prevents power interruptions or damage to equipment that could occur during rapid power switching, ensuring continuous operation of the load without any disruption. In enterprise power supply systems, to prevent the system from losing power due to power supply failures, multiple power sources are typically considered in the system design. When the power supply fails or is under maintenance, it is disconnected, and the backup power supply is activated to enable rapid switching of power sources, thereby preventing the system from losing power and avoiding economic losses in production. In general systems, the switching on of the backup power supply can be accomplished using a automatic transfer switch device. However, in systems with a large number of motors, the automatic transfer switch device is not able to handle the switching between multiple power sources effectively, as the motors remain in a \"free-running\" state due to inertia when the power supply fails. If a backup auto-transfer device or a delayed closing method is used to activate the backup power supply, it is very likely that the backup power supply will connect in opposite phase to the busbar, causing significant stress on the system and electrical equipment. Furthermore, the delayed closing of the automatic transfer switch fails to ensure a continuous power supply to the busbar, which can result in a power interruption to some important process stages that require a steady power supply. Given the problems that occur during power supply switching, our company’s DCM-633/635 series of disturbance-free rapid switching devices has gradually become the ideal solution for rapid power supply switching in industrial enterprises. The DCM-635 series of disturbance-free rapid switching devices is an upgraded version of our company’s DCM-633 product. It retains the features of the DCM-633 while being more intelligent. The holographic black box, combined with intelligent waveform recording functions, helps customers on-site to understand the disturbance patterns in their power grids more comprehensively and accurately, as well as analyze the effects of switching, thereby enabling flexible parameter optimization for various continuous power supply systems. As the core control unit of the FSC series of medium and low voltage disturbance-free quick switching cabinets, the DCM-635 disturbance-free quick switching device, in combination with phase-controlled high-speed vacuum circuit breakers, can achieve the fastest response time possible