Question 41
In the dynamic environment monitoring system, ____________ is used to indicate the severity of the corresponding fault.
Question 42
When the load is 60KW, Each ups The capacity is 100KVA, Power Factor 0.95, Then when the system must be redundantly configured, at least ____________ tower ups.
Question 43
UPS Common system configurations are N system,N+X system,2N system.
Question 44
During the construction process, the operation with debris splashing should be used ____________ .
Question 45
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.