In the area of power continuity, automatic transfer switch (ATS) play a key role in ensuring seamless transfer of power during a power outage. PC-level ATS is the first choice for industries with strict requirements on power outage time, while CB-type automatic transfer switch occupies its own market with its unique protection characteristics and cost advantages. CB ATS is equipped with an overcurrent release designed to make, carry and break short-circuit currents, making it a reliable choice for general industrial and civil construction projects with less stringent power outage time requirements.
One of the main differences between Class CB ATS and PC Class ATS is their ability to break short-circuit currents. Class CB ATS is equipped with an overcurrent release capable of protecting against short circuit events. While this feature adds a layer of protection, it also requires careful consideration to ensure a balance between protection and conversion properties. Potential impacts to power supply continuity must be addressed, particularly when a Class CB ATS is in the power input position.
The rated operating short-circuit breaking capacity (Ics) of the main circuit breaker constituting the CB-level ATS plays a vital role in its performance. For an ATS to function effectively, Ics should be greater than or equal to the expected short-circuit current of the circuit. In addition, the short-time withstand current (Icw) of the main circuit breaker should also be greater than or equal to the expected short-circuit current of the circuit. These specifications ensure that Class CB ATS can handle short circuit events without affecting its functionality.
Outage time requirements are a decisive factor when selecting the correct ATS for a specific application. For industries such as rail transit and data centers that need to limit power outage time to less than 1.5 seconds, dedicated PC-level ATS is the first choice. However, in general industrial and civil construction projects, it is acceptable for the power outage time to be greater than or equal to 1.5 seconds. CB-level ATS stands out because of its protection characteristics and cost advantages. CB ATS continues to carve out a niche in the market by offering reliable solutions at competitive prices.
It should be noted that although Class CB ATS provides protection functions, careful planning and measures are still required to ensure the continuity of power supply to emergency loads. Overcurrent release of the ATS may prevent it from switching after tripping, emphasizing the need for a comprehensive approach to address potential disruptions. By considering these factors and implementing the necessary safeguards, CB ATS can provide the protection and reliability required for general industrial and civil construction projects.
In summary, the Type CB automatic transfer switch is a versatile solution that meets the specific needs of general industrial and civil construction projects. Class CB ATS is capable of interrupting short-circuit currents and providing the necessary protection, making it a compelling choice for applications with more relaxed outage time requirements. By balancing protection and conversion characteristics, CB ATS is a cost-effective option without compromising performance. With its unique features, CB ATS continues to demonstrate its relevance in the ATS market, providing reliable and efficient solutions for a variety of applications.
Mutai Group has accumulated more than ten years of manufacturing and sales experience in circuit breakers, contactors, dual power automatic transfer switches (ATS) and related fields. We eagerly look forward to the opportunity to work with you.
Post time: Dec-18-2023
