appliances. In addition to the neut

appliances. In addition to the neutral loss of the current low-voltage cable, part of the zero-phase line / 2, when the zero-phase unbalanced load line loss high resistance increase can be considered appropriate to increase the cross section for the zero line, the use of the five-core cable in the two cores and the core neutral wire in each phase. Single-phase load accounts for a large proportion of on-site power supply, actively promote single-phase power supply. At present, most of the single-phase load appliances in the residential area of our city. Because of the mixed multi-wire load power, lighting load, low utilization of electrical equipment, the actual operating voltage is very large, and the range of three-phase unbalanced load is large. In addition, the state of energy consumption in rural households, in many less developed and less developed rural areas, such as low per capita energy consumption, scattered residential areas, long transmission lines have problems, so in these areas, single-phase power transformers may consider reducing losses and construction funds. At present, the loss of single-phase transformer is less than 15%, 20%. At the same time, some single-phase three-phase load power transformers have been in the test area, which provides more space for some parts of the single-phase power transformer to pass. Actively adjust the actual measurement and transformer load. The load measurement of distribution transformer seems simple, but there are several points that should be paid attention to in practical work. First of all, it can not only measure the phase current, but also measure the Bmai C, and the three-phase distribution transformer adjusts the actual measured load. When measuring the load on the low voltage side of the transformer, in addition, the grounding voltage and the current between the zero line or zero line can be measured so that it can be a three-phase unbalanced load, so that the position of the unbalanced load can be adjusted, and then it can be found that the load is a fixed point. Third, load measurement should be carried out regularly and irregularly, especially in large-scale operation and user load peak load. Increasing the load measurement of distribution transformer seems simple, but there are several points that should be paid attention to in practical work. First of all, it can not only measure the phase current, but also measure the Bmai C, and the three-phase distribution transformer adjusts the actual measured load. When measuring the load on the low voltage side of the transformer, in addition, the grounding voltage and the current between the zero line or zero line can be measured so that it can be a three-phase unbalanced load, so that the position of the unbalanced load can be adjusted, and then it can be found that the load is a fixed point. Third, load measurement should be carried out regularly and irregularly, especially in large-scale operation and peak user load. Load measurement seems simple, but there are several points that should be paid attention to in practical work. First of all, it can not only measure the phase current, but also measure the Bmai C, and the three-phase distribution transformer adjusts the actual measured load. When measuring the load on the low voltage side of the transformer, in addition, the grounding voltage and the current between the zero line or zero line can be measured so that it can be a three-phase unbalanced load, so that the position of the unbalanced load can be adjusted, and then it can be found that the load is a fixed point. Third, load measurement should be carried out regularly and irregularly, especially in large-scale operation and user load peak load. First of all, it can not only measure phase current, but also measure BMagne C. three-phase distribution transformer adjusts the actual measured load. When measuring the load on the low voltage side of the transformer, in addition, the grounding voltage and the current between the zero line or zero line can be measured so that it can be a three-phase unbalanced load, so that the position of the unbalanced load can be adjusted, and then it can be found that the load is a fixed point. Third, load measurement should be carried out regularly and irregularly, especially in large-scale operation and user load peak load. First of all, it can not only measure phase current, but also measure BMagne C. three-phase distribution transformer adjusts the actual measured load. When measuring the load on the low voltage side of the transformer, in addition, the grounding voltage and the current between the zero line or zero line can be measured so that it can be a three-phase unbalanced load, so that the position of the unbalanced load can be adjusted, and then it can be found that the load is a fixed point. Third, load measurement should be carried out regularly and irregularly, especially in large-scale operations and user load peak loads. In addition, the groundin