A new online measurement system of dielectric loss angle (delta ) with FPGA for high voltage capacitive apparatus is presented in this paper.
Abstract—A new on-line measurement system of dielectric loss angle (δ ) with FPGA for high voltage capacitive apparatus is presented in this paper. By using double polarity zero crossing point comparing method for measuring phase difference, system frequency measurement and measurement error adaptive corrected with ...
A new online measurement system of dielectric loss angle (delta ) with FPGA for high voltage capacitive apparatus is presented in this paper. By using double ...
... dielectric loss factor is necessary in preventive experiments and online monitoring of insulation of high-voltage apparatuses in an electric power system.
The on-line monitoring system detect the following parameters: running voltage, frequency, insulation current (current pass through capacitance of equipment), capacitance, dielectric loss factor tanδ, the current and voltage harmonic components of the 3rd, 5th and 7th, environment temperature and humidity etc. 2 ...
Based on the low-frequency dielectric loss measurement method, this paper proposes a low-frequency dielectric loss angle online monitoring method combining the signal injection method and the double-end synchronous measurement method. The detailed ...
Missing: Apparatus. | Show results with:Apparatus.
The algorithm can accurately extract the fundamental signal and calculate dielectric loss factor. Measured results from simulations and practical engineering projects show that the new algorithm has good application feasibility without being affected by the limitations rendered above.
Missing: Apparatus. | Show results with:Apparatus.
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The instrument can correctly measure the dielectric loss and capacitance of CVT without removing the high voltage lead of CVT. ... The instrument can measure the dielectric loss and capacitance of C0 at the upper end of CVT by negative wire shielding method.
May 19, 2021 · This article first introduces the composition of the capacitive equipment online monitoring and fault diagnosis system, and makes a more detailed analysis and comparison of existing dielectric loss monitoring methods.
Missing: Apparatus. | Show results with:Apparatus.
The formula for dielectric dissipation factor angle computation is deduced by theoretical analysis and the computation results are achieved by digital ...