watthour meter calibration system

Product Description

Main technical specification 1. Power supply: ~**0V/*6?*0%, *0HZ 2. Device class: 0.*3; 0.*5; 0.1 3. Voltage measuring range: 3ר**0/3, **0, **0, **0)V 4. Current measuring range: 3ר0.*5, 0.1, 0.*5, 0.5, 1, 2.5, 5, *0, *5, *0, **0)A 5. Voltage，current regulating range: 0~**0%, regulating fineness：0.**2%; 6. Three phase voltammeter accuracy: 0.1%, phase accuracy：0.2?, frequency monitoring meter accuracy：0.*1HZ; 7. Phase regulating range: 0?～**0?, regulating fineness：0.*1?; 8. Frequency regulating range: *5HZ~*5；regulating fineness：0.**1HZ 9. Voltage loop capacity: *5VA per meter slot *0. Current loop capacity: **0VA *1. Output power stability: better than 0.*2%/2min, voltage, current waveform distortion: better than 0.5%; *2. Voltage symmetry: 0.1%; current symmetry: 0.1% *3. ED**5Gtime reference：frequency：1HZ、**0KH HZ（TTL level），stability：5ױ**9/per day，accuracy：1ױ**7； *4. Meter slot number of the system: *0