Power transformer is a static electrical equipment, is used to a certain value of the AC voltage (current) becomes the same frequency as the other one or more different voltage values (current) device.
2013年8月28日星期三
Microcomputer remote automatic meter reading applications
Remote automatic meter reading system: the so-called remote automatic meter reading system means that managers can sit in the office of remote table, the application of the microcomputer through a dedicated line, wireless, power lines, optical fiber as a channel for meter reading and mcb circuit breaker management. Automatic meter reading technology (AMR) was born in the U.S. mid-eighties, early nineties the introduction of domestic, domestic residential electricity, "a form of a" policy implementation and management of intelligent residential areas of air circuit breaker, in recent years in the domestic AMR technology is developing very rapidly, the Ministry of Construction on the "house, kitchen, bathroom, three metering Deto intelligent system device" standards are developed. Current national standard automatic meter reading mcb circuit breaker been introduced, automatic meter reading system not only can be used for electricity meter reading, but also applies to water meters with pulse output, gas and heat meters meter reading. In function is not limited to meter reading function, according to national standards, it should also have monitoring operating status alarm, parameter setting, load control, custom functions.
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