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-
Three-phase unbalance is an important indicator of power quality. Although there are many factors that affect the power system, the normal unbalance is mostly due to three-phase components, line parameters or load asymmetry. Since the factors of the three-phase load are not certain, the three-phase
1. Hazards, causes and types of transformer core multi-point grounding faults1. The hazards of multi-point grounding faults in the iron coreWhen the transformer is in normal operation, it is not allowed to ground the iron core at multiple points, because in the normal operation of the transformer, t
Shock testing is not a power system term. It is generally a test method to determine the safety, reliability and effectiveness of military and civilian equipment when they are subjected to external force impact or action. The impact test in electrical engineering generally includes operation impact
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