With the rapid development of my country's economy, the demand for electricity in all walks of life is increasing, and the phenomenon of unbalanced electricity consumption at different times is... moreWith the rapid development of my country's economy, the demand for electricity in all walks of life is increasing, and the phenomenon of unbalanced electricity consumption at different times is becoming more and more serious. In order to alleviate the increasingly sharp contradiction between power supply and demand in China, adjust the load curve and improve the imbalance of electricity consumption, fully implement the peak, flat and valley time-sharing electricity price system, "peak cutting and filling the valley" to improve the efficiency of electricity consumption throughout the country Using power resources, the power departments of some provinces and cities in China have begun to gradually introduce multi-rate energy meters to charge users' electricity consumption in a time-sharing manner.
In April 1995, the National Planning Commission, the State Economic and Trade Commission and the Ministry of Electric Power Industry jointly decided at the National Planned Power Work Conference held in Shanghai that it would take 3 to 4 years to have plans and steps in major power grids across the country. Fully implement the peak-valley time-of-use electricity price system. The overall goal is to transfer 10-15% of the peak power in each network, and to achieve a peak power transfer of 10-20 million kilowatts across the country. The scope of implementation is not only for industrial and commercial users, but also for non-industrial and agricultural power. In areas where conditions are right, that is, residential electricity consumption areas where one household and one meter have been implemented, there will also be plans to develop low-level electricity consumption and implement peak-valley electricity prices to increase energy utilization and improve the quality of electricity used by residents. Use different time periods and different charging standards for power users. Encourage electricity consumption during the trough.
In 1980, Henan first proposed the measurement of electrical energy in terms of peak and valley times, and promoted rational, balanced, and scientific electricity consumption by economic means. Then it began a pilot project. Through practice, it initially explored some valuable experiences. . Afterwards, Shanxi Province conducted joint pilots with some simple power equipment in some power users.
From 1982 to 1985, many provinces, cities, and regions across the country also implemented time-of-use metering of electricity and a new charging system adapted to this, and achieved great results. Some large power grid bureaus also regard it as an important content of technological improvement and one of the important measures to carry out scientific power consumption. So far, my country has entered the ranks of countries that use a variety of electricity prices as auxiliary management methods and control electricity load.
The first generation of quartz clock-controlled time-sharing watt-hour meters. This kind of electric energy meter connects the quartz clock through various wires to drive the peak and valley electromagnetic counters respectively, and displays the peak and valley power and the total power respectively. Subtracting the peak and valley power according to the total power is the normal time power. Because of the poor reliability of this time-sharing meter. The timing segmentation accuracy is too low (minimum segmentation is 5min), it is susceptible to interference, and the time period adjustment is also more troublesome. It has a single function and cannot adapt to some special requirements in time-sharing.
The second-generation mechatronics time-sharing electric energy meter. This energy meter is based on the 1.0-level induction system energy meter movement, using infrared photoelectric converter, pulse output and central processing unit (CPU), single-chip circuit, using the attached keyboard programming or infrared wireless keyboard for various needs , Clock, time period, and two-day setting can protect the display and storage of the maximum demand of this month, the maximum demand of last month and the maximum demand of peak, flat and valley of this month. With pulse output and RS-232 serial communication port, it is convenient for remote data transmission and monitoring. The performance of the instrument is relatively precise and reliable, and the function can meet the needs of my country's current time-sharing billing. The production process is relatively mature and the price is competitive. It is the most widely used product in China. However, the shortcoming is that each manufacturer develops its own dedicated microcontroller, which has the disadvantages of poor product compatibility and difficult maintenance. Common products in this series are DF68, DF93, DTF33, DF86, DSF20, DIF2, DF32, DTF864, MRZ, DSD66 and so on.
Zhejiang Tepsung Electric Meter Co., Ltd . is a professional China manufacturer and supplier of three phase electricity meter and kilo watt-hour... less