The Research Of The Optimized Plan Of Disposing Switching Equipment Of Big Customers

The electrical energy quality can be weighed by voltage quality and the frequency quality. If the energy quality fails, it will worsen the performance of the user equipment such as reducing the efficiency and the power factor, shortening the life cycle of the devices, increasing the energy loss, failing the function of the remote communication and electronic devices, dropping the efficiency of machinery production and deteriorating the quality of the product. When the quality of the power supply is far away from normal, it will cause massive abandonment of the product and even endanger personal safety.The article divides the big customers into several groups of different kind of load: the inductance and capacitance load, impulsion load, symmetrical and unsymmetrical load, non-linear load, the load of seasonal characteristics, the continuity and the non-continuity load etc. We gather the data of their power quality and other various aspects.The article proves the best disposition of the equipment is the most appropriate plan of the disposition. It demonstrates that the proper deploy of the electric instruments has a great impact on power quality through the analysis of the production process, the contract of power supply and power usage, the allocation of the electric equipment, the data analysis of the running history, the deviation of power voltage, the frequency of power supply, the imbalance of three-phase, the harmonious factor, the fluctuation and flicker of the voltage.The article lists the measures to take to improve the power quality in terms of detailed analysis of data, and it gives a prospect of the power quality in the near future and predicts the research direction in this field.