China's energy meter verification system verification technology

The project “Research on Calibration Technology for Verification of Automatic Energy Verification Instruments Verification System” has passed the review. The project was led by the State Grid Tianjin Electric Power Institute, and the evaluation experts highly praised the project.

An expert group consisting of the chief drafters of national technical specifications such as JJG596, 597, and 1085, and domestic well-known metrology experts highly appraised the construction of the “Verification of Energy Verification Instruments Automated Verification System Verification Device” project, and believed that it had reached an international advanced level.

The review team has heard reports on the work of the project, reviewed the technical documents and related materials in detail, and checked the operation of the project system on site. After discussion, it considered that the project-related data was complete, complete and standardized, and met the assessment requirements. The overall technology of the project reached international standards. Leading level.

The project was officially launched in April 2015, and a 0.02-level micro-standard electric energy meter suitable for on-line real-time monitoring of the electric energy meter automatic verification line was developed. The equipment adopts advanced technologies such as low power consumption design to solve the industrial problems of long time warming up of standard tables, and uses a miniature standard meter and a programmable fault meter to propose a new energy meter auto-calibration system traceability and quality assurance method. , Optimized the verification process of the AC power meter verification device, and achieved verification and traceability of the verification system.

After the project is put into operation, the Measurement Center of the Institute of Electrical Technology can detect the measurement performance of the automated calibration line at any time as required, ensuring high continuous performance of the automatic line at high efficiency, and effectively reducing or eliminating the potential hazards of automatic verification system of the electric energy meter. Improve the company's metrological verification capabilities, improve the management system, and provide strong support for smart grid construction.