JKLVS bundled conductors

JKLVS bundled conductors:

The power supply mode of JKLVS bundled conductor can solve the defects existing in the previous low-voltage power distribution mode.

1. Judging from the characteristics of the bundled wire, the bundled wire has the capacity expansion function, and its current carrying capacity is higher than that of the conventional wire. Since the entire low-voltage distribution network adopts a 3-phase 4-wire system, the bundled wire is used to transmit the same power capacity. The cross-section can also be reduced by one grade according to the conventional design.

2. Using the bundled conductor mode, it is easy to realize the 3-phase 4-wire power supply to each metering point and distribute the electricity users equally among each metering point, so that the 3-phase load tends to be balanced to the greatest extent, and the zero line current tends to The minimum. This effectively improves the utilization rate of the transformer, effectively suppresses the displacement of the neutral point, and reduces the network loss.

3. The bundled wire is better than the stranded insulated wire. First, because the actual length of the stranded insulated wire is large, which increases the cost; 2. Because the insulation of the stranded insulated wire is under pressure, the position of the phase wire and the neutral wire is not fixed. It is not easy to distinguish, especially in the main line and branch, branch and household line are difficult to connect under tension.

Development of JKLVS Parallel Cluster Wires:

Innovation is the foundation of an enterprise. Due to the defects in the erection of low-voltage bare conductors, cluster conductors began to research and implement stranded cluster overhead cables from Japan, Eastern Europe, the United States and other developed countries in the 1980s, which are both safe and economical. To achieve better benefits, on the basis of stranded cables, China has developed parallel bundled insulated cables since the late 1990s and began to apply them to low-voltage power grids in the 20th century. In January 2011, the National Energy Administration recently released related The People's Republic of China Electric Power Industry Standard (pl\/t5253-2010) Design and construction regulations for low-voltage distribution lines with overhead parallel bundled insulated conductors greater than 20kv 6 sub-projects. Due to the long-term work in power grid management and the understanding of parallel conductors, it is believed that the application of bundled conductors will have a good effect on improving the safety and economy of low-voltage power grids. . Parallel bundled conductors have the following characteristics: 1. Compared with conventional lines, the parallel bundled conductors change the surrounding magnetic field and electric field distribution, so that the reactance decreases, the susceptance increases, and the line voltage loss is significantly reduced; 2. With Compared with the stranded bundled wire, erecting a line of the same length can shorten the electrical distance of the wire by 1.5-3 percentage points, reduce the power loss of the wire itself and the cost of the wire, and also have the advantages of fewer production processes and simple process; 3. The parallel bundled wires appear in the form of flat plates in the process of production and loading, and the transportation density is high; they can be automatically classified into squares after erection.