Energy consumption metering device of six-phase power supply equipment

Abstract

The invention discloses an energy consumption metering device of six-phase power supply equipment. The energy consumption metering device comprises a plurality of voltage transformers; the primary windings of the first voltage transformer and the second voltage transformer are connected between the triangle winding output end of the six-phase power supply equipment and a first bridge rectifier; the primary windings of the third voltage transformer and the fourth voltage transformer are connected between the star winding output end of the six-phase power supply equipment and a second rectifier bridge; the secondary windings of the first voltage transformer, the second voltage transformer, the third voltage transformers and the fourth voltage transformer are electrically connected with a first electric energy meter, a second electric energy meter, a third electric energy meter and a fourth electric energy meter correspondingly; and the A phase and C phase of the triangle winding output end of the six-phase power supply equipment are respectively connected with a first current transformer and a second current transformer. With the energy consumption metering device of the six-phase power supply equipment of the invention adopted, the energy consumption data of equipment like the energy consumption metering device can be obtained conveniently and simply, and the improvement of lean management can be benefitted for energy consumption enterprises, and the promotion of new energy-saving products can be benefitted for energy saving companies and equipment manufacturers.

Description

technical field [0001] The invention relates to a method and device for measuring electric energy consumption of high-power rectifying equipment in the industrial field, in particular to an energy consumption measuring device using a special transformer for six-phase power frequency AC power supply equipment. Background technique [0002] In the current severe situation of energy depletion and environmental pollution, the whole world is vigorously advocating energy conservation and emission reduction. Various equipment manufacturers are constantly promoting the application of new energy-saving equipment, and energy-saving companies adopt the contract energy management model One of the basic tasks for replacement or renovation is to accurately measure the amount of energy actually consumed by various types of equipment during operation. [0003] At present, most electrical equipment adopts three-phase three-wire, three-phase four-wire, single-phase AC power supply or DC power...

AI Technical Summary

Problems solved by technology

This indirect measurement method has the disadvantages of low accuracy, complicated device and high cost.

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