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Y-701B ATS Controller from China Factory - Reliable Power Supply Solutions by Trusted Suppliers
LMS1-LA Series ManualLMS1-LA as our ingenuity research and development of a new generation of dual power automatic transfer switch, in the performance and technology to achieve a major breakthrough. The product provides 63A, 125A, 250A, 400A, 630A and other rated current specifications, whether it is the continuous operation of massive servers in data centers, or the uninterrupted power supply of life support equipment in hospital ICU wards, the stable operation of elevator and fire fighting system in high-rise buildings can fully meet the power demand in different scenarios.
Its switching speed can be called industry-leading, switching time only 10ms-50ms, with millisecond response speed to complete power conversion. In the data center, the LMS1-LA automatic transfer switch can switch to the standby power supply in a very short period of time in the face of sudden power failure, avoiding data loss and system collapse caused by momentary power failure; in the hospital environment, the LMS1-LA automatic transfer switch can switch to the standby power supply in a very short period of time, millisecond-level power switching can guarantee the stable operation of precision instruments and first-aid equipment in operating rooms, and escort the safety of patients. When applied to high-rise buildings, fast power changeover ensures smooth parking of elevators, normal operation of fire fighting systems and improved building Factor of safety.
The transfer switch is composed of a high performance excitation contactor and an intelligent controller. When working, the electromagnetic coil produces a strong and stable attraction to drive the switching action to ensure the instant completion of power switching. This feature not only effectively guarantees the rapid switching of the power supply when the equipment is powered off, but also realizes the seamless connection of the power supply, which provides a reliable and solid power guarantee for the equipment with strict requirements for power continuity.
Y-701B controller is an independent type ATS controller. It detects abnormal conditions of grid parameters (overvoltage, undervoltage, phase loss, over frequency, under frequency, misphase sequence, etc.) and then automatically controls the transfer switch (TSE) transfer according to a predetermined mode of operation to the suitable power supply, to ensure the continuous power supply on the load side.
Controller Function Introduction
Controller Human-Machine Interface
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Frequently Asked Questions
Q
What is the Y-701B ATS controller used for?
A
The Y-701B is an independent type Automatic Transfer Switch (ATS) controller designed to detect abnormal grid conditions and automatically switch the power supply to ensure uninterrupted power delivery to the load side.
Q
What grid abnormalities can the Y-701B controller detect?
A
The Y-701B can detect a wide range of grid faults including overvoltage, undervoltage, phase loss, over frequency, under frequency, and misphase sequence conditions.
Q
How does the Y-701B controller perform the power transfer?
A
Once an abnormal grid condition is detected, the Y-701B automatically controls the Transfer Switch Equipment (TSE) to switch to the suitable power supply according to a predetermined mode of operation.
Q
Does the Y-701B controller support manual operation?
A
Yes, the Y-701B is equipped with a Human-Machine Interface (HMI) that allows operators to monitor system status and perform manual control operations when needed.
Q
Is the Y-701B controller suitable for three-phase power systems?
A
Yes, the Y-701B is designed to monitor and protect three-phase power systems, including the detection of phase loss and misphase sequence faults commonly found in three-phase applications.
Q
What makes the Y-701B an "independent type" ATS controller?
A
Being an independent type controller means the Y-701B operates as a standalone unit, capable of monitoring grid parameters and executing automatic transfer switching without relying on external control systems.





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