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Measurement validation and calibration for electrical power applications
The importance of accurate measurement of power and energy has increased dramatically over a relatively short period of time. De-regulation, competition and the increasingly distributed nature of the power supply network mean that measurements are made more frequently, and a higher degree of accuracy is required as previously acceptable levels of error begin to compound.
At the same time the environment in which these measurements are being made is becoming increasingly hostile to good measurement practice. Harmonic distortion, voltage fluctuations, phase imbalances and other extraneous, re-injected signal components provide an alien environment for measurement devices designed to operate primarily on sinusoidal signals. |