An automatic transfer switch (ATS) is a critical part of any emergency power supply system. The ATS is the device that selects a power source - either normal utility power or standby generator power - and conducts the power to critical loads.
Emergency generators and automatic transfer switches are rarely required to operate. However, this often means that routine maintenance on this equipment may be overlooked. As is the case with all your electrical power distribution equipment, routine predictive/ preventative maintenance is the only way to ensure its continued safe and reliable operation.
Most generator manufacturers recommend load testing at least annually to remove carbon build-up in the engine and to remove any possible moisture content from the alternator windings. PS² can perform this service per the manufacturer's instructions