B.V.Zhmurov, S.V.Kornilov

At designing of power systems the important role is played by accuracy of regulation of pressure in an onboard electric network of a flying vehicle. Accuracy of regulation of level of pressure in combination with correct selection of wires allows one to lower considerably the weight of an onboard network at the expense of increasing an admissible power failure in it. However, the accuracy increase is expedient until it will be accompanied by decrease in weight of wires of a network. Hence, it is expedient to choose optimum accuracy of regulation which will provide the minimum weight of a power supply system. The presented design procedure of weight of wires of an onboard electric network allows one to receive the minimum weight of wires, considering admissible currents of loading and accuracy of regulation of pressure on switching centres and by that to improve mass and dimensional characteristics of an onboard electric network and system of electrosupply of an air craft as a whole.