ABB ATS022 Dual Power Automatic Transfer Switch Controller

Description

ABB ATS022 Dual Power Automatic Transfer Switch Controller

The ABB ATS022 is an advanced, electronic Automatic Transfer Switch (ATS) controller. It is part of ABB’s smart power portfolio, designed to manage the automatic changeover between two power sources (typically a main utility line and an emergency generator) to ensure continuous power supply to critical loads.

Product Detailed Description

The ATS022 is a dedicated control unit that monitors two three-phase power sources. When the primary source fails or fluctuates beyond acceptable limits (voltage or frequency), the ATS022 automatically commands the switching devices (like motorized circuit breakers or switch-disconnectors) to transfer the load to the secondary source. It is designed for DIN-rail mounting and is frequently used with ABB’s Emax 2, Tmax XT, or OT switches.

Technical Parameters

Product Advantages

• Integrated Communication: Unlike the basic ATS021, the ATS022 features a built-in Modbus RS485 port, allowing it to be integrated into building management systems (BMS) or SCADA for remote monitoring.
• Versatility: Compatible with various switching technologies, including circuit breakers (ACB/MCCB) and changeover switches.
• Generator Management: Includes specific logic for generator “Start/Stop” commands, including programmable cool-down timers.
• Dual Power Supply: Can be powered by both AC and DC sources simultaneously to ensure the controller remains active even during a total blackout.
• User-Friendly Interface: The LCD screen provides real-time readings of voltage and frequency, making commissioning and fault-finding much faster.

Important Considerations (Precautions)

• Phase Sequence: Ensure that the phase sequence (L1, L2, L3) of both sources is identical. Incorrect phasing can lead to equipment damage during the transfer.
• Interlocking: While the ATS022 manages the logic, users must ensure that the switching devices (breakers) have a mechanical interlock to prevent both sources from being closed at the same time.
• Sensing Protection: It is highly recommended to install 1A or 2A fuses on the voltage sensing lines connected to the controller for circuit protection.
• Neutral Connection: Ensure the neutral wire is correctly connected if the system is 4-wire (3P+N), as the controller uses it for accurate phase-to-neutral voltage measurements.

Product Applications

The ATS022 is critical for any facility where power downtime is not an option:

• Hospitals & Healthcare: Ensuring life-support systems switch to generators instantly during utility failure.
• Data Centers: Managing redundant power paths to prevent server shutdowns.
• Telecommunications: Remote base stations requiring autonomous power management.
• Commercial Buildings: Controlling emergency lighting, fire pumps, and elevator power systems.
• Industrial Plants: Protecting continuous processes from voltage dips or power interruptions.

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