1. What is a voltage sagVoltage sag, also known as voltage sag or voltage dip, refers to a sudden drop or almost complete loss of the effective value of the power supply voltage, and then rises back to near the normal value. Voltage sag is generally described in terms of retention voltage and durati
How harmonics are generatedHarmonics produced by power generation equipment.Harmonics generated by power transmission and distribution systems.The harmonics generated by the electrical equipment of the power supply system (such as frequency converters, electric furnaces, etc.), among which the harmo
Oil-immersed Transformer ConstructionThe core part of the three-phase oil-immersed transformer is composed of a closed iron core and windings wrapped around the iron core posts. In addition, there are oil tanks, oil conservator cabinets, casings, breathers, explosion-proof pipes, radiators, tap chan
The industry stipulates that the safe voltage is 36V and the safe current is 10mA. The reasons are as follows: the degree of harm to the human body caused by electric shock mainly depends on the magnitude of the current passing through the human body and the length of the power-on time. The greater
1. Harm of unbalanced three-phase load of distribution transformer1. Increased line loss: The load loss of the distribution transformer changes with the load current of the transformer, and is proportional to the square of the load current. When the transformer delivers the same capacity, the three-
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