12.07.2015 Views

Analogue instruments - Circutor

Analogue instruments - Circutor

Analogue instruments - Circutor

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<strong>Analogue</strong> <strong>instruments</strong>Wattmeters<strong>Analogue</strong> indicator to measure active powerCoding tableM 1 X X X X 0 0 X X XCodeCurrent inputInternalCodeStandard .../ 5 A 0... / 1 A 1Standard (400 V p-p) 0110 V p-p(a) 1Voltage230 V p-p2440 V p-p5460 V p-p6WattmetersScale rangePrimarycurrenttransformer50 975 B100 C150 E200 F300 H400 J500 K600 L1000 P1500 R2000 S3000 U4000 V5000 W(a) For unbalanced ARON (3 wire) three-phase units, 100 V isconsidered the standard voltageM 1 X X X X 0 0 X XWattmeter scalesCodeCurrent inputVoltageInternalCodeStandard .../ 5 A 0... / 1 A 1Standard (400 V) 0110 V (a) 1230 V 2440 V 5460 V 6(a) For unbalanced ARON (3 wire) three-phase units, 100 V isconsidered the standard voltageM1-37

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