Paper Title
Application Software for Automatic Control System of the Gas Pumping Unit based on Master SCADA

Abstract
Prior to the development of software, a technical task was formulated in accordance with optimal mathematic model of a gas pumping unit is established in this paper which considers all the factors influencing the total control system of a gas networks system (e.g. pipe diameter, thickness, pressure, length, compression ratio, etc). In this article, we described the developed software for controlling the gas pumping unit. This software is developed on the basis of Master SCADA. The software includes improved algorithms «Pressure oil lubrication protection test» and «Pressure oil gas protection test» in accordance with the customer's requirement and the tendency to increase the reliability of the automatic control system. Keywords - automatic control system, gas pumping unit, centrifugal compressor, oil lubrication, oil gas protection