Scientific and Technical Journal

ELECTROTECHNIC AND COMPUTER SYSTEMS

ISSN Print 2221-3937
ISSN Online 2221-3805
REACTIVE POWER COMPENSATION MINIMUM LOAD TRANSFORMERS WITH A SECONDARY VOLTAGE 0.4 KV
Abstract:

An original technique for determining the capacity of a permanently switched-on stage of a capacitor plant with a rated voltage of 0.4 kV, transformers 6 (10) / 0.4 kV, is proposed to reduce losses of active electricity in such transformers of power supply systems. It is assumed that the voltage that is supplied to consumers is a potential form of electricity. At the same time, in the electromagnetic field of consumers' electric receivers (as legal entities), it turns into an electrokinetic form of that kind of energy that can perform a specific useful work. The modern mathematical model of the power supply system is conditionally-mathematical, which considers the reactive component of electricity in the electric power system as a separate type of energy, which is transferred to consumers and determines the volume of its consumption by the amplitude values of the load of their reactive power. Therefore, the robot uses a real-mathematical model of electricity transmission, which allows adequate (according to the current values of such a load) to determine the negative impact of the reactive load of consumers on the energy efficiency of energy resources in the electric power industry. Based on such physical principles, it is proved that at a voltage of 0.4 kV, the reactive load compensating devices in idling mode of power supply system transformers are not economically feasible to use. Transformers in this mode must be turned off. However, under the condition of a special selection of the capacity of the mentioned capacitor installations and inductive reactors, transformers of the TM-6 (10) kV type can be applied in the form of filter-compensating devices of electrical networks that supply consumers with voltage 6 (10) kV.

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References

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24 Sept 2018

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