Problem of increasing the power factor in industrial enterprises

Introduction. Improve the power factor in power systems by food businesses advisable optimal use capacitors and synchronous motors Materials and methods. Mathematical tools of probability theory, mathematical statistics, and queuing theory was used. We investigate normative methods for selection of power capacitors, used development to improve the accuracy of calculations. Results and discussion. The advantages and disadvantages of standardized methods for reactive power compensation in the industry. Recommend to introduce an amendment in the calculations. A systematic approach to compensation, thus improving the economic performance of all sources of reactive power. By placing capacitors in a network of industrial enterprises into account that there are individual and centralized reactive power compensation. When an individual compensation capacitor installation is connected to the terminals without power-switching devices. This type of compensation should only be used in relatively large power consumers with a large number of annual working hours. Individual compensation allows you to unload all of the reactive power production enterprise network. However, this method requires significant capital investment. In addition, time compensating devices depends on the duration of electro switch for turning off the network with it off and capacitor battery. Power capacitors also limit the phenomenon of self-excitation of the engine. When self-excitation voltage at the terminals of the motor is proportional current condenser and rotor speed of the engine. The value of voltage may rise to 160 % U-N. It is develop the method that avoids self-excited motor. Conclusions. Results encouraged to apply on the enterprises of the food industry to improve power factor.