What is the purpose of a static transfer switch (STS) in a data center power system?
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A
To automatically transfer an IT load from one power source to another in less than a quarter cycle (4ms or less) without interruption
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B
To gradually ramp up generator output to prevent voltage surges during startup
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C
To isolate a faulty UPS module while the system remains on bypass
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D
To convert single-phase power to three-phase power for high-density rack deployments