Electric power measurement multifunctional instrument system and method for measurement

Abstract

The invention relates to an electric power measurement multifunctional instrument system and a method for measurement. The electric power measurement multifunctional instrument system comprises an electric power measurement module for acquiring and measuring external three-phase voltage and current and transmitting measurement data to a microprocessor module, an LED driving module for driving an LED display screen, the LED display screen for displaying the measurement data output by the microprocessor module, an input module for acquiring input switching value and / or keystroke input value for the microprocessor module, an output module for outputting and performing switching in, switching off, CT overload current warning, and the like to a relay, a storage module for meeting requirements on storing system setting parameters, accumulated electrical degree value and standard check value of the electric power measurement module, and the microprocessor module for performing control operations of initializing the system, responding to timer interruption, reading electric quantity data, storing set data, displaying the electric quantity data, and the like.

Description

technical field [0001] The invention relates to the field of electric power measurement, an electric power measurement multifunctional instrument system, and a method for measuring the electric power multifunctional instrument. Background technique [0002] The supply of electricity plays a very important role in the normal production and work of the society, and the reliability and measurement accuracy of the intelligent measurement and control instruments on the power switchgear play a very important role in the normal operation of the power switchgear. [0003] Traditionally designed and developed power measurement multi-function meters generally use traditional single-chip microcomputers (such as 51 series cores) to obtain voltage, current, power and electrical degrees equivalent values ​​through A / D sampling operations on voltage and current. This design method is adopted There will be problems such as low accuracy of electric quantity value, complex and easily damaged ...

AI Technical Summary

Problems solved by technology

[0003] Traditionally designed and developed power measurement multi-function meters generally use traditional single-chip microcomputers (such as 51 series cores) to obtain voltage, current, power and electrical degrees equivalent values ​​through A / D sampling operations on voltage and current. This design method is adopted There will be problems such as low accuracy of electric quantity value, complex and easily damaged hardware structure, and high material cost of the product.

Images