◆ Main produces: JD862(big digit-wheel)、JD50、JD51、JD58 etc used for single-phase and three-phase meter.
◆ Product features: accurate fixed-position; easily to take apart; well environmental adaptation.
◆ Popular transmission ratio:
For single-phase(rup)
200
300
450
720
1200
1440
1800
2400
3600
…
For three-phase(rup)
300
500
600
1000
1800
2000
2400
3000
4500
…
◆ Mechanical burden: Less than 1.2% on the basis of 220V,COSΦ=1.0 and 0.05Ib according to enterprise standard. This following chart shows the mechanical burden error tested by DD862(big digit wheel) 30A i1200 register.
