Several Advantages Of Smart Meters
The main types of smart meters are IC card meters. The user holds the IC card to the power supply department to pay for the purchase of electricity. The power supply department uses the sales management machine to write the purchased electricity into the IC card. The user holds the IC card to swipe the non-contact IC in the induction area. Card (swipe the card for short, the same below), you can switch on and supply power, and then remove the card after the power is supplied. When the remaining power in the meter is equal to the alarm power, the switch will be powered off (or the buzzer will alarm). At this time, the user can restore the power supply by swiping the card in the sensing area; when the remaining power is zero, the power will be automatically opened and the user must Only when the card is used to pay for electricity purchase can the electricity consumption be restored. For residential electricity, when compared with mechanical meters and electronic meters, it has the following advantages:
1. It has a variety of anti-stealing functions, low starting current, no creeping, wide load, low power consumption, flat error curve, and good stability during long-term operation. Single-phase local fee-controlled smart meter
2. Beautiful appearance, small size, light weight and convenient installation.
3. High accuracy: Fully electronic design, built-in imported special chip, accuracy is not affected by frequency, temperature, voltage, and high-order harmonics.
4. Long life: SMT technology, optimized circuit design, no need to adjust the circuit after the whole machine leaves the factory.
5. Low power consumption: low power consumption design is adopted to reduce power grid line loss.
6. Pre-purchase power; IC card transfers data to realize data readback, including: read back total power, remaining power, cumulative power purchase in the meter, total power purchases and other information.
7. Store table constants, initial values, user addresses, names and other information.
8. Overload alarm and power failure, remaining battery alarm, remind users to purchase electricity in time.
The emergence of smart meters has also brought many benefits to energy meter testing institutions. For example, when testing a mechanical or electronic meter in the past, after the meter is installed on the meter testing device, the debugger needs to manually enter the address of each meter in the debugging software, as well as the active and reactive power levels of the meter, and the meter's application. Debugging parameter scheme, these greatly increase the workload of the debugger, delay the delivery time of the energy meter, and have a non-negligible impact on the brand image of the company. However, since the birth of the smart meter, the debugger only needs to add Then connect the network cable port of the debugging computer to the network port on the electric energy meter verification device, set up the communication serial port of the PC and the device, and then automatically generate their various parameters on the verification software, and pass the automatic verification of the software in a short time. During the process, it is clear on the computer display whether the quality of the smart meter meets the national standards.
