ATS AMF Panel

An ATS AMF Panel (Automatic Transfer Switch – Automatic Mains Failure) is an integrated electrical control and distribution panel that automatically detects a utility power (PLN) outage, starts the generator set without human intervention, and safely and quickly transfers the power supply from the utility to the generator (and back again).

This panel combines two main functions:

• AMF (Automatic Mains Failure): Acts as the “brain” of the system, monitoring the quality and availability of utility power and sending automatic start/stop signals to the generator engine.
• ATS (Automatic Transfer Switch): Acts as the “executor,” operating the power switching mechanism from the utility to the generator, or vice versa.

Main Functions of an ATS AMF Panel

1. Automatic Power Failure Detection: Monitors the voltage, frequency, and phase of the utility mains in real time.
2. Automatic Generator Start/Stop: Sends a cranking signal to start the generator automatically as soon as the utility supply is lost or drops below the safe threshold.
3. Automatic Power Transfer: Transfers the building load from the utility to the generator automatically once the generator voltage has stabilized.
4. Auto Re-transfer & Warm-down: Returns the load to the utility when utility power is restored, then shuts down the generator after a cooling-down period.
5. Dual-Source Protection: Prevents current clashes (backfeeding) between the utility and the generator through mechanical and electrical interlock systems.

Advantages of an ATS AMF Panel

1. Fully Hands-Free Operation: No operator or technician needs to be present in the panel room during an outage, making it ideal for facilities that are not staffed 24 hours a day.
2. Very Fast Response: The entire process, from outage to the generator supplying the load, takes only a few seconds (typically 5–15 seconds, depending on the generator’s warm-up time).
3. Engine Efficiency & Protection: Ensures the generator reaches stable speed and voltage before accepting the load, and provides a cooling-down period before shutdown to extend engine life.
4. Maximum Installation Safety: Prevents the risk of severe short circuits caused by incorrect manual switching or generator backfeed into the utility grid.