The loop impedance measurement
The data represents the results of the short circuit loop impedance measurement performed using the vector method.
The vector method is a method for determining loop impedance based on the orthogonal voltage components. The advantages of this method are as follows: much more accurate measurement of loop impedance in comparison with classical methods as well as pure resistant measurement load. Thanks to that, a meter used in this method is characterized by a smaller size and lower weight than the one used in classical methods.
The results of the analysis of the vector method have allowed to precise the rules of choice of the measurement method depending on network parameters, as well as to build the physical loop impedance meter adopting this method. The meter prototype consisted of: the LEM CV-500 transducer, the PCI 6024E data acquisition card and the load resistor 10 W of accuracy class 0.1 and specialized, an original application written in the LabVIEW environment.
The obtained simulation and experimental results were convergent. The research resulted in the construction of a model of a loop impedance meter involving the aforementioned methods, which allows measuring the value of loop impedance with an error of less than 3%.
These data were also used for designation the combined standard measurement uncertainty of loop impedance by the vector method.
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- Automation, electronic and electrical engineering (Engineering and Technology)
- 10.34808/ek20-5r75 open in new tab
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- Gdańsk University of Technology
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