Method for rapid determination of the percentage rate of grain losses by the combine harvester according to its parameters

N. Delchev, K. Trendafilov
Abstract. There is a direct connection between the loss of grain during harvest and the working speed of the harvester. At the same time the speed is determining for the productivity of the machine. Therefore, the contemporary harvesters have an electronic system that allows monitoring of the grain losses and enables the operator of the machine to control the speed according to the acceptable levels of losses. In order to set this system, it is extremely important to determine the acceptable level of losses not by intuition but by using exact and precise data. In this article dependencies have been derived that take into account the various parameters of harvesters as well as the yield from the relevant field.