How Can You Use A Static Transfer Switch In A UPS Installation?

A Static Transfer Switch is a solid state high-speed switching device that can transfer a load between two AC Power sources. The two AC power sources can be two AC mains power supplies, generators or uninterruptible power supplies or a mixture of these up to a maximum of two supplies. The two input can be out of phase as the STS ensure a single supply to the connected load(s). In a UPS installation the STS can provide the UPS with two power sources (A and B) drawn from separate supplies.

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How Can You Use A Static Transfer Switch In A UPS Installation?