This product is suitable for all kinds of pipe gallery, culvert concrete construction.
Project Achievements: Changchun pipe gallery, Chifeng pipe gallery, Tianjin pipe Gallery, Beijing pipe Gallery, Qingdao pipe Gallery.
Material: Q235 steel
Surface Treatment: painted or as customer requirement
Application: Pipe gallery, Tunnel Engineering
Type: Pipe gallery formwork
Tolerance: GB or as customer requirements
Size: Customized
MOQ: 1 set
Utility Tunnel,Fair-Faced Formwork,Utility Tunnel Formwork,Comprehensive Pipe Gallery Anshan Lijian Engineering Group Co. LTD , https://www.lijianformwork.com
Automatic Transfer Switching Equipment (ATSE) is a critical component in emergency power systems, designed to automatically switch electrical loads from the main power source to a backup one. This ensures continuous and reliable power supply for essential equipment, minimizing downtime and maintaining operational stability.
On June 9, 2013, Yin Tianwen, Dean of the Shanghai Electric Apparatus Research Institute, highlighted during the general low-voltage electrical sub-conference of the China Association of Electrical Equipment Industry that ATSE technology is evolving rapidly. Current trends indicate a shift towards higher current ratings, greater short-circuit capacity, and improved mechanical and electrical endurance.
According to Professor Yin, modern ATSEs are now capable of handling power levels up to 4000–6300A, with rated short-time withstand currents (Icw) that meet or exceed expected short-circuit values. The short-circuit connection capability (Icm) is also increasing, reaching 2–2.2 times the Icw value. These improvements are essential for ensuring system reliability under high-stress conditions.
In addition, distribution-class ATSEs are moving toward higher rated limiting short-circuit currents (Iq). When operating under AC-33 (10Ie) conditions, their Iq must be equal to or greater than the circuit’s expected short-circuit current. Moreover, their I²t values should surpass those of standard protective devices, enhancing overall system safety.
For load-level ATSEs, the focus is on extending mechanical and electrical life. Under AC-33 (10Ie) conditions, these devices now offer longer lifespans than traditional miniature circuit breakers (MCBs), while supporting diverse load requirements and operational scenarios.
To address specific market needs, static transfer switches (STS) have also been developed. These systems provide power transfer within less than 5–10 milliseconds, making them ideal for critical applications such as telecommunications, rail transit, airports, and military infrastructure.
However, these advancements require the development of key technologies, including precise power synchronization, phase sequence detection, controller anti-jamming techniques, and integrated solutions for complex emergency power systems. STS technology remains a crucial area of focus for future growth.
Given their critical role in maintaining power continuity, the reliability of ATSEs is of utmost importance. A failed transfer can lead to serious consequences, such as power outages, equipment damage, and even safety hazards. Therefore, continuous innovation and improvement in ATSE design and technology are essential to meet the growing demands of modern power systems.