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1. Executive standard: GB/T 17215.321-2008/IEC 61036:2000 and GB/T17882-1999
2. Class index: class 1 and class 2
3. Power consumption: 2W(10VA)
4. Reference frequency: 50Hz
5. Needn't to be corrected after working a long time.
6. Supplied with three-phase power, any one phase or two phases fail, the watt-hour meter still works normally;
7. Goo d temp eratur e performance: the error shall not exceed accuracy range within the temperature range -25 ~55 ;
8. Good light-load performance: the instrument has fine accuracy class at ultra-light load;
9. High accuracy of actual online measuring;
10. Simple installation and operation; the installation position can't be affected by anything;
11. Strong ability of transportation resistance: the instrument can't cause the change of error under kinds of normal
1. Specified working temperature: -10 ~+45
2. Utmost working temperature: -25 ~+60
3. Relative humidity: 85% (at environmental
temperature 23 )
4. There shall be no harmful substances causing
corrosion in the air
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