■^1 THREE-PHASE REFERENCE STANDARD RD-30THREE-PHASE REFERENCE STANDARD r Typical Accuracy: ±0.02% @ PF=1 r Worst Case Accuracy: ±0.04% @ PF>0.5

INTRODUCTION The RD-30 three-phase reference standard is one of the most versatile reference instruments ever. The RD-30 has a typical accuracy of ±0.02% @ PF=1 for all measurement functions across its entire operating range, with a maximum worst case accuracy of ±0.04%. This worst case accuracy specification includes the variables of stability, power factor, traceability uncertainty and test system errors. A unique design makes the RD-30 unsurpassed in its ability to accurately measure "real world" waveforms. The RD-30 reference meter includes an exclusive analog to digital signal converter...