Development of high current shunts of cage design with active cooling

Zachovalova, Vera Novakova; Bednar, P.; Maslan, Stanislav; Šíra, Martin; Streit, Jiri

doi:10.1109/cpem.2016.7540485

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“…Typical digitizers for precision measurements are Agilent 3458A which are suitable for industrial frequencies up to at least 400 Hz. Current transducers are usually coaxial current shunts [2] which can be calibrated at least up to 100 kHz even for 100 A current ratings. Alternatively, precision current ranging transformers can be used such as [3].…”

Section: Introductionmentioning

confidence: 99%

Design and Characterisation of 1 kV Multirange Resistive Voltage Divider

Maslan¹,

Šíra²

2022

Proceedings of the 25th IMEKO TC4 International Symposium and 23rd International Workshop on ADC and DAC Modelling and Testing

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The paper describes design of a new multirange AC resistive voltage divider (RVD) for input voltage up to 1 kV for measurement of LF power and power quality parameters. Two prototypes were constructed and characterised in terms of temperature dependence, power dependence of gain and phase errors and AC transfer. The new RVD reached phase change below 0.5 μrad and gain change below 8 μV/V at 53 Hz for voltage step from 100 V to 1 kV with time constant below 2.5 minutes. Voltage dependence and DC ratio stability are under evaluation.

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Section: Introductionmentioning

confidence: 99%