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As an important public facility, hospitals have extremely high requirements for the continuity and stability of power supply. In hospitals, there are many sensitive loads, such as MR, CT, various analyzers, **machines, and surgical monitors. Voltage fluctuations or power supply failures can severely affect the safe operation of medical equipment, and in severe cases, they can lead to casualties. To ensure continuous power supply, a dual-power redundancy configuration can be used to enhance the operational safety of sensitive loads. By combining UPS units with static transfer switches and installing UPS systems at the front end of the load, the voltage from the mains, which varies over time, can be stabilized within levels that the equipment can handle. Additionally, various voltage disturbances can be filtered out or reduced to levels acceptable for medical equipment, thus ensuring the safe operation of such devices. Given that UPS systems also have a certain risk of failure in actual operation, this applies to important medical devices with high power consumption, such as MRI machines, CT scanners, surgical monitoring devices, CR machines, DR machines, conventional X-ray machines, DSA devices for cardiovascular imaging, computed tomography scanners, isotope tomography scanners, MRI machines, as well as devices like X-knives, gamma knives, and linear accelerators. It is recommended to adopt a dual-power supply redundancy scheme. The vast majority of hospitals are equipped with independent dual-power supply systems, typically consisting of two 10kV high-voltage power supplies from different utility providers. By making use of the advantages of this dual-power setup, the low-voltage distribution system provides dual-power supply to critical, high-sensitivity loads. These two power sources come from different sections of the power supply network; depending on the specific requirements of the load, they can be one mains supply and one UPS supply, or both can be UPS supplies. As shown in the diagram, a static switch is used at the input side, with the output providing power to the loads. In the event that one power source fails, it can be quickly detected, and the system can switch over to the other safe power source, ensuring continuous operation of the loads. This design guarantees the reliability of power supply for essential medical and IT equipment, preventing equipment damage or medical accidents due to power outages. file:///C:/Users/MARKET~1/AppData/Local/Temp/ksohtml816/wps33.jpg file:///C:/Users/MARKET~1/AppData/Local/Temp/ksohtml816/wps34.jpg The core switching component of the GSS static transfer switch is a high-speed thyristor; it takes only 5 ms from the detection of a fault to the completion of the switching process and the provision of feedback, which meets the requirements for uninterrupted operation of sensitive loads at all levels in various scenarios, without any disruptions. The switching process monitors the grid status in real time, automatically identifies the phase relationships, and comes equipped with alarm and protection functions for conditions such as excessive or insufficient input voltage, excessive or insufficient output voltage, overtemperature, and overload, thereby ensuring safe switching. In summary, the STS static transfer switch holds great significance in hospitals, as it can provide a reliable and continuous power supply for these facilities, ensuring the proper operation of medical equipment and the safety of patients. When selecting and installing static transfer switches, hospitals should carry out reasonable planning and design based on actual needs and conditions, to ensure the stability and reliability of the equipment and provide strong support for the safe operation of the hospital.