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Voltage and current measurements
1990The difficulties associated with voltage and current measurements increase with frequency and most voltmeters and ammeters are restricted to the region below 1 GHz [1-4]. Above 1 GHz voltages and currents in transmission lines can be deduced from a knowledge of the power flowing in the line, the characteristic impedance, and the reflection coefficient ...
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Electrical Engineering, 1948
A SIMPLE METHOD for accurately measuring voltages present on high-voltage systems during both transient and steady-state conditions without modifying the conditions producing the voltage to be measured has been developed.
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A SIMPLE METHOD for accurately measuring voltages present on high-voltage systems during both transient and steady-state conditions without modifying the conditions producing the voltage to be measured has been developed.
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A voltage transformer for use in the measurement of small voltages
Journal of the Institution of Electrical Engineers, 1931In a paper by Mr. R.S.J. Spilsbury and the present author, † apparatus for providing a voltage-drop of about 2 volts propotional to and in time phase with an alternating current is described. The 2 volts is obtained from a “non-inductive” resistance connected either in the main-current circuit or in the secondary circuit of a high-precision current ...
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Measurements of transients in high-voltage systems
Proceedings of the IEEE, 1986The constant call for increased measurement accuracy has resulted in a strong demand for recording instruments with a wider bandwidth and a higher sensitivity. The resultant use of recording instruments with gigahertz bandwidths for measurements in high-voltage (HV) systems has created a situation in which the distributed character of field-structure ...
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Research on a Composite Voltage and Current Measurement Device for HVDC Networks
IEEE Transactions on Industrial Electronics, 2021Zhenhua Li, Weihui Jiang, A Abu-Siada
exaly
Online Junction Temperature Measurement for SiC MOSFET Based on Dynamic Threshold Voltage Extraction
IEEE Transactions on Power Electronics, 2021Xi Jiang, Jun Wang, Hengyu Yu
exaly