电流功率（Current power）.docVIP

电流功率（Current power） How big is the 10 kW _100 cable? In accordance with the power of electricity facilities (kW or kVA) to calculate the current (ANN) formula. Three. Distribution calculation [case 3] 95 mm2 copper insulated wire 25 degrees, through tube, according to the same condition of 120 mm2 aluminum insulated wire, calculated as 192 ANN (120 * 2 * 0.8). 2, that formula is aluminum core insulation wire, surface temperature of 25 degrees are state conditions prevail. If the condition differences, no description of other formulas. Insulated wires include various types of rubber insulated wires or plastic insulated wires. Formulas for various sections of 10 kW with big wire cable to be _100 kW much load flow (current, an) is not directly pointed out, but with the section multiplied by a certain factor , to express. To this end, the first familiar wire section, the arrangement of 11.52.54610162535507095(mm2)...... The cross-sectional area of the aluminum core insulated wire produced by the production plant usually begins at 2.5 and the copper core insulated wire begins at 1; the bare aluminum wire starts at 16; the bare copper wire starts at 10. [case 5] 21 thousand volt alternating current welding transformer, lower level, single-phase 380 volts, according to current two, an electric current of 53. The one or two turns what does that mean? That formula is engaged in other diameter thread relationship and said. But its harder to understand. To this end, let us arrange the whole relationship and look at it: from the outside table can be seen: from the smallest diameter of 15 start, the order is divided into a class, two types of cross section, turns. Thats the number of one or two turns. But memorizing that way alone may be difficult, and it will be difficult if you remember it together. For example, when we read 20 wear 4 and 6, we can associate it with: the front of 20 is 15, and the class is only wearing a kind of cross section; that is, it is next to