Detailed explanation of prepaid energy meters
Views: 信息来源：山东科大中天电子有限公司 发布时间：2014/8/29 Source of information: Shandong University of Science and Technology Zhongtian Electronics Co., Ltd. Release time: 2014/8/29
There are two common pre-storage methods for pre-paid energy meters, one is code type, and the other is write card type.
Pre-paid watt-hour meters are also called quantitative watt-hour meters and IC card watt-hour meters. In addition to the ordinary watt-hour meter's metering function, in particular, the user first buys electricity, and can only use electricity after buying electricity. If the electricity is used up, the user will not continue to sell electricity. , It will automatically cut off the power and stop the power supply.
The prepaid energy meter is mainly based on the electricity sales management system. The computer system including computers, IC card readers, printers and other equipment and prepaid electricity meters (single-phase, three-phase) mainly complete the parameter setting of the energy meter. Management of electricity sales. The use of pre-paid energy meters has played a better role in promoting the management of electricity consumption and strengthening marketing.
The pre-paid energy meter adopts the mode of first purchasing electricity and then using electricity to zero power outage, which solves the problem of difficulty in collecting electricity charges in the past. And, because the energy meter has a power-off device, it can implement some auxiliary functions, such as load control, overcurrent protection, and so on. And after using a pre-paid energy meter, capacity can be easily realized.
1. Accuracy level: 1.0 level, in line with GB / T17215-1998, IEC1036-19962
2. Current specifications: 5 (20) A, 5 (30) A, 10 (40) A, 20 (80) A
3. Rated voltage: AC220V
4. Rated frequency: 50Hz
5. Starting current: 0.4% Ib
6. Power consumption: ≤1W
7. Environmental working conditions: -20 ℃ ～ + 55 ℃, relative humidity does not exceed 85% (temperature + 25 ℃)
8. Working voltage: within the fluctuation range of ± 15% of reference voltage, it can work normally.
9. Power consumption: ≤2.5W
10. Display: 4 digits of LED number + multiplied by 10 indicator to display the remaining power in the table; the meter shows the cumulative power consumption.
11. Control relay contact capacity: AC 10A / 100V; 3A / 220V.
12. The working environment temperature is: -10 ℃ ~ + 50 ℃.
13. Relative humidity of working environment: ≤85% (temperature is + 23 ° C).
Anti-stolen electricity meter, pre-paid energy meter has several basic formulas:
Total electricity consumption * unit price + remaining electricity bill = total electricity bill purchased.
It can be easily inferred from this formula whether the meter is tricky.
The need to use a prepaid energy meter:
The main characteristics of the current electricity tariff marketing management model are: customers use electricity first and pay later. Because some users have poor credit, greater operating risks, and poor economic benefits, they exist objectively. "Customers use electricity first and pay later." The marketing management model of electricity costs makes it difficult to recover electricity costs. With the increase of funding pressure, the assessment of the user's electricity tariff recovery rate and the monthly balance of unreceivable users' electricity tariff must adopt new electricity marketing models and methods. The most effective and easy way to solve the difficulty of meter reading and charging is to use a prepaid energy meter that pays first and then uses electricity.
Benefits of prepaid energy meters:
No need for electrician to read the meter: Save a lot of manpower and material resources, do not need to arrange an electrician to visit the meter frequently every month, you only need to arrange for the electrician to regularly check whether the prepaid meter is normal, and do not need to be too frequent, and more and more data records Accurate and easier to use.
There is no need to collect electricity charges at home: Because you pay first and then use electricity, users need to pay for the electricity at the property themselves, without the need for real estate personnel to save time by charging users.