When a motor is turned off using traditional control methods, it typically involves an immediate power cut. However, in many real-world applications, this sudden shutdown is not acceptable. For instance, in high-rise buildings or building pump systems, an abrupt stop can cause a severe "water hammer" effect, which may damage pipes and even the water pump itself. To prevent this issue, a soft stop function is essential. A soft starter allows for a gradual motor shutdown, reducing the impact of the water hammer effect and protecting the system. Soft starting technology is especially beneficial in pumping stations, where it helps avoid the destructive "surge" that can occur during sudden stops. This not only minimizes damage but also lowers maintenance costs and reduces the workload on technicians. The soft stop feature works by gradually reducing the conduction angle of the thyristor after receiving a stop command. Over time, the thyristor transitions from full conduction to complete closure. The parking duration can be adjusted based on specific operational needs, offering greater flexibility and control.
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