smart factory
3.23.1 Smart Electricity Meters
Leiditech recommends intelligent meter protection devices and solutions
Intelligent meters are intelligent instruments based on the application of MCU microprocessors and network communication technology. It is no longer a traditional electricity meter. It can automatically measure/process data through voltage/current transformers, digital accelerometers, magnetic sensors, etc. It can also achieve bidirectional metering, remote/local communication, real-time data interaction, multiple electricity pricing, remote power outage, power quality monitoring, water and gas heat meter reading, and interaction with users. It has advantages such as high cost-effectiveness, high reliability, and strong accuracy.
China's electronic energy meters have entered the era of intelligence, gradually meeting the needs of China's smart grid construction. The function and positioning of smart meters are constantly developing towards intelligent and modular electricity terminals. The Automatic meter reading technology included in smart meters is becoming more and more popular in the application of meters. This technology provides communication ports for meters to read data, and in most cases, remote reading is used. For meter applications, it is both safe and saves time and money. The key to realize this technology is to ensure the safety and reliability of the communication link. RS-485/RS-422 and RS-232 are simple, cheap and reliable communication specifications, which can be ideal for Automatic meter reading systems.
Leiditech recommends products for smart meters:
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Class |
brand |
Product and product overview |
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TVS Diode |
Leiditech |
10BJ26A package SMB peak working reverse voltage 26V，Leakage current1ua |
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TVS Diode |
Leiditech |
10BJ190A v SMB peak working reverse voltage 190V，Leakage current1ua |
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TVS Diode |
Leiditech |
For RS485 chips：SM712package SOT-23 peak working reverse voltage 7V，Leakage current1ua |
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TVS Diode |
Leiditech |
For RS232 chips：SD12C package SOD-323 peak working reverse voltage 12V，Leakage current0.5ua |
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TVS Diode |
Leiditech |
For DCDC chips：SM8S24CA package DO-218AB peak working reverse voltage 24V，Leakage current0.5ua |
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TVS Diode |
Leiditech |
For screen display：ESDA3.3CW-4 package SOT-353 peak working reverse voltage 3.3V，Leakage current0.5ua |
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TVS Diode |
Leiditech |
For keyboard：SDA05CW package SOT-363 peak working reverse voltage 5V，Leakage current5ua |
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MOS |
Leiditech |
WPMD4953A;configuration： Dual PVDS: -20V, ID: -3.40A |
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Leiditech |
WPMD4953; configuration： Dual PVDS: -30V, ID: -4.90A |
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Leiditech can provide various interface electrostatic lightning protection solutions to solve electromagnetic compatibility problems for customers, and provide more protection solutions，Please search for the mini program "EMC Electromagnetic Compatibility Community" on WeChat. Welcome to contact Hu Gong 18016225001.
