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Digital Power Meter for Utility MW / MK

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Overview

Model MW & MK series, designed for general performance measruing active & reactive power, accepts ac voltage & current signals with conversion to use a time division multiplier principle of an accurate detection the measured input power. The conversional process adopts pulse width modulation for voltage input & amplitude chopping modulation for current input to form a happed current pulse which as a multipling function of instant variables for input voltage & current. The integration of the instantaneous sample-conversion applied to MW series as a real power detection is able to measure a distorted sinusoidal wave with high harmonics even for a chopped SCR-conrolled waveform. The unit series include of the ratio input type & direct input type, the former defined to accept the secondary signal from CT & PT & to scale to primary reading display, the later calibrated to a reading to follow input. The designed specification , truely a real power system configuration, compliants ANSI-IEEE & DIN-IEC, VDE those standards with full protection for surge intrusion & accident input over to assure reliable operation.

 

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