The electrical architecture of the data center is mostly redundant,and the standby power sources such as high-voltage bus,low-voltage bus and diesel power are automatically put into use through automatic logic,thus realizing the redundant availability of the power supply system.On the premise of meeting the setting principles of specifications and standards,the relay protection setting of switchgear and diesel-generator side switchgear,combined with the criteria of standby automatic switching and the requirements of fault locking,should set the protection level difference reasonably.At the same time,the protection setting value is set reasonably by combining the states of the mains load and the diesel-generator load in different operation modes,so as to realize the effective cooperation of the protection setting values of the mains load and the diesel-generator load.
data centerelectrical frameworkrelay protectionprotect the fixed value
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