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Dual Power Supply Control Cabinet - Automatic Transfer Switch
0102030405
Automatic Transfer Switch (ATS) - High-Quality Dual Power Supply Solutions from China Suppliers and Factory
LMS1-LA Series Manual
LMS1-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.
Configuration of dual power supply cabinet
1. Automatic Transfer Switch (ATS)
Commonly, there are PC type and CB type. The PC type transfer switch features a simple structure and fast switching speed, making it suitable for scenarios with high requirements for switching time. The CB type transfer switch has functions of overload and short-circuit protection, and it is applicable to situations where the load needs to be protected.
2. Control Circuit and Controller
The control circuit is responsible for monitoring the power supply status and controlling the operation of the transfer switch. The controller is the core component of the dual-power supply switch, usually adopting microprocessor technology, which has functions of high-precision measurement of power supply parameters and flexible parameter setting.
3. Protection Devices
- Overcurrent Protection Device: When the current in the circuit exceeds the set value, it automatically cuts off the circuit to prevent equipment damage.
- Short-circuit Protection Device: When a short-circuit occurs, it acts quickly to cut off the circuit and protect equipment safety.
- Under-voltage Protection Device: When the voltage is lower than the set value, it acts to prevent malfunctions or damage.
4. Current & Voltage Transformers
Current transformers (CTs) measure the current in the circuit, and voltage transformers (VTs) measure the voltage of the power supply. They transmit the measured signals to the controller and protection devices for monitoring and protection purposes.
5. Circuit Breakers
The input power supply circuit breaker and the output power supply circuit breaker can automatically cut off the circuit when faults such as overload and short-circuit occur, protecting the safety of the system.
6. Auxiliary Equipment
- Indicator Lights: Displays status for main/standby power supply and switch-on conditions for easy visual monitoring.
- Operation Buttons: Used for manual switching, debugging, and maintaining the equipment.
- Relays: Used to achieve conversion, amplification, and logical control of signals.
Frequently Asked Questions (FAQ)
What is the difference between PC type and CB type ATS?
PC type transfer switches feature a simple structure and offer faster switching speeds, making them ideal for systems requiring rapid transition. CB type switches include built-in overload and short-circuit protection, making them suitable for loads requiring extra circuit protection.
What protection devices are typically installed in a dual power supply cabinet?
Key protection devices include overcurrent protection (to prevent damage from high current), short-circuit protection (to quickly cut off fault currents), and under-voltage protection (to safeguard equipment from voltage drops).
Why are current and voltage transformers necessary in these cabinets?
Current Transformers (CTs) measure the current in the circuit, and Voltage Transformers (VTs) measure the voltage of the power supply. They transmit these measured signals to the controller and protection devices for monitoring and protection purposes.
What is the role of auxiliary equipment in a dual power supply system?
Auxiliary equipment, including indicator lights, operation buttons, and relays, allows operators to visually monitor the system status, manually control operations, and handle signal conversion and logic control.
How does the controller manage the dual power supply switching?
The controller, typically using microprocessor technology, monitors the parameters of both power sources. If it detects an anomaly (like power loss or under-voltage), it triggers the ATS to transfer the load to the stable standby source.