Service objects
There are two or more inverter devices (inverter air conditioner and inverter refrigerator…)
The rectifier of the mobile phone and laptop is hot (above 60℃)
There is a charging station in the garage
thinking the electricity bill is too expensive
Factory
Harmonics cannot be reduced
Power Factor cannot be mentioned
Frequency converter interference control equipment
Thinking the electricity bill is too expensive
Public Facilities
Two or more charging piles in the basement garage
There are charging piles of different brands in the same garage
Charging pile stops charging for no reason
The charging station is hot (above 50℃)
Other equipment
Abnormal temperature rise of transformer
Can no longer pull a new ground wire
Hospital MRI and CT interfere with imaging and mislead interpretation
Data center fever
Wind and photovoltaic power plants reduce power generation