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Yokogawa offers enhanced calibration services for power measurements

12 July 2011

An enhanced calibration service for high-frequency ac power measurements is now being offered by Yokogawa Europe through its European Standards Laboratory in Amersfoort, Netherlands. The new services include calibration at frequencies of up to 100kHz; calibration of external current transducers at currents of up to 1,200A with very precise phase calibration to cater for the measurement of power as well as current; and the capability to carry out calibration at low power factors down to 0.001.

The European Standards Laboratory has also developed a high-accuracy power measurement system based on two sampling voltmeters and synchronisation devices using two stage inductive voltage dividers and electronic current compensated transformers with an AC shunt resistor. The measurement uncertainty of this low-frequency sampling wattmeter is less than 40 parts in 106 for active, reactive and apparent power for frequencies between 45 and 60 Hz.

For more information about this calibration service click here
 


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