ACCURATE THREE-PHASE ELECTRODYNAMIC COMPARATOR VOLTAGE, CURRENT AND POWER 

Nefed'ev Aleksey Ivanovich, doctor of technical sciences, associate professor, sub-department of electrical engineering, Volgograd State Technical University, nefediev@rambler.ru
Nefed'ev Dmitriy Ivanovich, doctor of technical science, head of sub-department of information and measuring equipment, Penza State University, iit@pnzgu.ru

 621.38

Electrodynamic three-phase comparator voltage, current and power is intended for reference measurements of power in three-phase circuits of alternating current in a wide frequency range. Electrodynamic three-phase comparator contains a dynamic system in the form of three horizontal beams on the edges of each fortified movable electrodes of electrodynamical to control their settings. The position of the beams is logged using two photovoltaic converters. Equality of voltage, current and power in AC and DC current is determined by using a null indicator.

electrodynamics comparator voltage, current, power, frequency Converter, independent verification, mobile system, stretching.