The following ____________ air supply methods mainly use process air conditioners that have a large amount of waste heat to be taken away from the lower working area.
The following is for high frequency ups The correct description of the rectifier components is.
When the AC power equipment is introduced in the three-phase four-wire system, in addition to the grounding of the near end of the power transformer, the near end of the electrical equipment and the equipment room should be grounded repeatedly on the neutral line.
In the main inverter mode, when the mains input voltage and frequency exceed ups When the allowable range isups Will be inverted from the main circuit. The mode shifts to static bypass mode.
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