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三相电表的符号：第一部分：类别代号：D ：电能表 第二部分：组别代号： 第一字母S:三相三线 T:三相四线 X:无功B:标准 Z：最高需量D：单相 第二字母F:复费率表 S:全电子式D:多功能 Y:预付费 第三部分：设计序号：阿拉伯数字 第四部分：改进序号：用小写的汉语拼音字母表示 。单相电表的符号：单相电表型号含义单相电表型号一般是字母加数字，字母方面一般由单相电表的性能决定的，数字方面一般是代表的厂家，比如威胜是102、华立是28以及海兴的208等。D代表电表，一般电表的型号都是D开头，D代表电表D代表单相电表，第二个字母也是D，D代表的单相电表S代表简单有功电表，Z代表智能电表，一般在第三个字母Y代表预付费电表，I代表载波电表，F代表复费率电表，一般体现在第四个字母补充说明字母：C代表IC卡插卡电表，Z代表载波模块，G代表GPRS模块
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Performance DescriptionAccuracy> Active Power 1.0 compliance IEC62053-21 and IEC61557-12 (PMD DD)Measurement range> 000000.0-999999.9KWh, 6 +1 digitsCurrent characteristics> Maximum current Imax 40A> Basic current Ib 5A> Start Current 20mAPulse output> 120ms pulse width> Pulse constant 100Imp/KwhNode characteristics of 35V (DC) / 20mA (max)SuperiorityEN40 series single-phase power meter, used in active power measurement metrics: High measurement accuracy (1.0), accurateModular small size (18mm), can be easily installed in various types of terminal distribution box.Rail mounting, bottom connection, a perfect match with the miniature circuit breaker.Intuitive easy to read mechanical display and reduce the risk of accidental loss of data outage.Work without external power supply.Wide operating temperature range.ApplicationsKWh of electricity metering active.Sub-metering / cost allocation / internal accounting.Remote pulse output.Apply to the commercial buildings, public infrastructure construction, to realize the building in different regions or different load power consumption measurement and statistics.For industrial buildings of different types of production lines or the load power consumption statistics, internal accounting.
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