ATS / Automatic Transfer Switch wiring / Automatic changeover switch / Engineering Technology A/L

How to wire an #automatic_transfer_switch for 3 phase generator.
Automatic transfer switch panel (#ATS) or an automatic #changeover_switch transfers power supply from its primary source to a backup #generator automatically, when it senses partly or a total failure in the primary source.
When power fail in the primary power system, this #automatic_changeover_switch invokes the backup source which is a #3_phase_generator here, to run electric equipment until utility power is restored.
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