Iskra MC330 - 100% Values Calculations for Normalized Measurements; Register Table for the Basic Settings

APPENDIXA:MODBUSPROTOCOL
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Measuringcentres
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MC320,MC330,MC350&MC350H ‐ User’sManua
l
57
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100%valuescalculationsfornormalizedmeasurements
Un= (R40147/R40146)*R30015*R40149
In= (R40145/R40144)*R30017*R40148
Pn= Un*In
It= In ConnectionMode:1b
It= 3*In ConnectionModes:3b,4b,3u,4u
Pt= Pn ConnectionMode:1b
Pt= 3*Pn ConnectionModes:3b,4b,3u,4u
Fn= R40150
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Register Content
30015 Calibrationvoltage
30017 Calibrationcurrent
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Registertableforthebasicsettings
Register Content Type Ind Values/Dependencies Min Max P.Level
40143 ConnectionMode T1 0 Nomode 1 5 2
   1 1b‐ SinglePhase  
   2 3b‐ 3phase3wirebalanced  
   3 4b‐ 3phase4wirebalanced  
   4 3u‐ 3phase3wireunbalanced  
   5 4u‐ 3phase4wireunbalanced  
40144 CTSecondary T4 mA  2
40145 CTPrimary T4 A/10  2
40146 VTSecondary T4 mV  2
40147 VTPrimary T4 V/10  2
40148 Currentinputrange(%) T16 10000for100% 5,00 200,00 2
40149 Voltageinputrange(%) T16 10000for100% 2,50 100,00 2
40150 Frequencynominalvalue T1 Hz 10 1000 2
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