Abstract
During monitoring and controlling of the processes of transmission and distribution electricity and power from three-phases nets are important accuracy and commonality primary transducer elements and devices. Incorrect operations and improper signals about conversion of primary values and parameters of the energy and power three-phases current associated with losses indicators of energy and resource in electrical power systems.
Highlights
In fig.1 shown equivalent circuit of magnetic circuit of the electromagnetic transducers of three-phase current, which formed for account the assumption of the magnetic permeability of steel, when entire range of induction is constant (μ = const)
Classical single-phase current transformers using currently in electrical nets for monitoring and control values and parameters of the reactive component of electric energy and power, do not take for account of mutual influence of magnetic flux fields generated by currents of three-phases power supply systems
Become necessary to develop a new electromagnetic signal transducer of the value of reactive power of electricity, to account the features of the current of three-phases nets, which differ from each others in
Summary
Closes at the outer surface of the outer cylindrical magnetic core, can be neglected
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