- Our Automatic Transfer Switch (ATS) is an electrical device commonly used in power systems to automatically switch between two power sources in the event of a power outage or failure. The primary purpose of an ATS is to ensure a continuous and reliable power supply to critical loads or equipment.
Here's how an Automatic Transfer Switch works:
- Dual Power Sources: An ATS is typically installed between two power sources – the main power supply from the utility grid (utility power) and an auxiliary power source, such as a backup generator or an alternative power feed (usually UPS - Uninterruptible Power Supply).
- Monitoring Power Quality: The ATS continuously monitors the quality and availability of the utility power. It keeps track of parameters like voltage, frequency, and phase, and detects any deviations or interruptions in the utility supply.
- Transfer Decision: When the ATS detects a power outage or a drop in the utility power quality beyond acceptable limits, it initiates the transfer process. This decision is based on preset criteria and is designed to ensure that the backup power source is reliable and stable before switching.
- Switching Mechanism: The ATS uses switching mechanisms, often in the form of electromechanical or solid-state relays, to change the power source. It disconnects the load from the utility power and connects it to the backup power source.
- Source Priority: ATS systems are usually programmed with source priority settings. For example, if the backup generator is available, it will be given priority over the utility power once it is stable and synchronized.
- Return to Normal Operation: When the utility power is restored or becomes stable within acceptable limits, the ATS will transfer the load back to the utility power source and disconnect it from the backup power source. This ensures the system returns to normal operation once the utility power is reliable again.
Benefits of Automatic Transfer Switches:
- Uninterrupted Power Supply: ATS ensures seamless power transfer, preventing downtime and ensuring continuous operation of critical equipment.
- Load Management: ATS can prioritize power sources based on their availability and capacity, allowing for efficient load management.
- Automated Operation: The automatic functionality of ATS eliminates the need for manual intervention during power transfers, making it a reliable and hands-free solution.
- Increased Reliability: By incorporating backup power sources, ATS increases the overall reliability of the power supply system.
- ATS systems are widely used in various applications, including data centers, hospitals, telecommunications facilities, industrial processes, and any other environment where uninterrupted power is critical.