UPS5000-E can maintain high efficiency in a wide load range and effectively reduce losses. Among them, the efficiency can reach 96% at 40% load, and the efficiency can reach 95% at 20% load. What is the efficiency in ECO mode?

• A.98%
• B.97%
• C.96%
• D.99%

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Which of the following are the difference between traditional power frequency machine and high frequency machine? (Multiple choice)

• A.Different types of bypass devices
• B.Different rectification methods
• C.All of the above are true
• D.The output must have a built-in step-up transformer

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When UPS2000-G shuts down the single machine of the shutdown system, it needs to ().

• A.Perform 2 consecutive shutdown operations on the machine
• B.Shut down all UPSs in the system
• C.Only one shutdown operation is required for the machine
• D.Directly disconnect the input of the machine

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The UPS5000-E power chess block adopts a fan fault-tolerant design. When one of the fans is damaged, what percentage of the power module can still be loaded?

• A.0.6
• B.0.5
• C.0.3
• D.0.25

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Among the following models, the one with the widest input frequency range is ()

• A.NXR
• B.Galaxy5000
• C.9390
• D.UPS5000-A

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