Title : 
A comparison of power measuring systems
         
        
            Author : 
Simonson, Pär ; Svensson, Stefan ; Rydler, Karl-Erik
         
        
            Author_Institution : 
Swedish Nat. Tseting & Res. Inst., Boras, Sweden
         
        
        
        
        
            fDate : 
4/1/1997 12:00:00 AM
         
        
        
        
            Abstract : 
An automatic zero-power-factor standard has been designed and compared with a digital sampling wattmeter standard. The agreement of the two power measuring standards at 120 V, 5 A, and zero power factor is within a few μW/VA. The paper describes the standards, the phase errors and uncertainties of the two standards
         
        
            Keywords : 
measurement errors; measurement standards; power factor; power measurement; wattmeters; 120 V; 5 A; automatic zero-power-factor standard; digital sampling wattmeter standard; measuring standards; phase errors; power measuring systems; uncertainties; Automatic testing; Current measurement; Electrical resistance measurement; Measurement standards; Phase measurement; Power measurement; Reactive power; Sampling methods; Shunt (electrical); Wattmeters;
         
        
        
            Journal_Title : 
Instrumentation and Measurement, IEEE Transactions on