CIGRE/IEEE Survey on Extra High Voltage Transmission Line Radio Noise

Juette, Gerhard W.; Charbonneau, H.; Dobson, H. I.; Gary, C.; Kolcio, N.; Moreau, Marcel R.; Reichman, J.; Taylor, E. R.

doi:10.1109/tpas.1973.293668

Cited by 19 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Through a certain modulus conversion, the pulse current of each phase conductor is obtained, thereby obtaining the field generated by these currents, that is, radio interference [11]. The calculation steps include: calculating the excitation function and correction of the meteorological influence, then calculating the distribution of the interference field strength according to the mode propagation principle, finally, calculating the radio interference field strength value at 20 meters outside the outermost phase transmission line and 2 meters above the outermost phase [12]. The excitation function is as follows:…”

Section: Radio Interference Calculationmentioning

confidence: 99%

Optimal Phase Sequence of 750 Kv Four-Circuit Transmission Lines Considering Electromagnetic Environment

Wang¹,

Zhang²,

Feng³

et al. 2020

PIER M

View full text Add to dashboard Cite

In order to evaluate the electromagnetic environment of 750 kV four-circuit transmission lines accurately and design the optimal tower type and phase sequence of the four-circuit lines, the finite element method is used to analyze the distribution characteristics of power frequency electromagnetic field under the line. The excitation function method and empirical formula method are used to calculate the radio interference and audible noise distribution under the line, respectively. Electromagnetic environment parameters of various phase sequences of two tower types are analyzed to determine the optimal phase sequence of 750 kV four-circuit transmission lines. The results show that the electromagnetic environment of transmission lines is strongly influenced by different tower types and phase sequences. The magnetic flux density and radio interference of the various phase sequences of the two tower types reach the limit of code, and 43.52% and 64.81% phase sequences reach the audible noise limit conditions, respectively. Electric field intensity is a main influence factor of electromagnetic environment. The optimal phase sequence layouts of the two tower types are 1661 and 1522, and the electric field intensities are 9.66 kV/m and 9.12 kV/m. The calculation method and results can be used for reference in practical engineering.

show abstract

Section: Radio Interference Calculationmentioning

confidence: 99%

Optimal Phase Sequence of 750 Kv Four-Circuit Transmission Lines Considering Electromagnetic Environment

Wang¹,

Zhang²,

Feng³

et al. 2020

PIER M

View full text Add to dashboard Cite

show abstract

“…Juette [15] tested the EM interference near 75 high-voltage lines under different weather conditions.…”

Section: Introductionmentioning

confidence: 99%

Pulse Current of Multi-Needle Negative Corona Discharge and Its Electromagnetic Radiation Characteristics

Wang¹,

Chen²,

Ouyang³

et al. 2018

Preprint

View full text Add to dashboard Cite

Negative corona discharges occur widely in high voltage transmission lines and charged aircraft, which can cause strong electromagnetic interference. Negative corona discharge is typically performed simultaneously at multiple discharge points. In this study, the current and its EM radiation characteristics of single-needle and multi-needle negative corona discharge in different conditions were tested. The current and electromagnetic radiation characteristics of the two discharge structures were compared. The dipole radiation model was established to analyze the EM radiation characteristics of the negative corona discharge.The results show that, It is only when the voltage reaches a certain threshold that the current and electromagnetic radiation fields of the multi-needle discharge structure will be superimposed and their amplitudes will increase significantly. The frequency of electromagnetic radiation signal does not change with the number of needles, cathode geometry and applied voltage, but only depends on ambient pressure. It provides a basis for detecting corona discharge sources under different conditions.

show abstract

Störquellen

Elektromagnetische Verträglichkeit

View full text Add to dashboard Cite

CIGRE/IEEE Survey on Extra High Voltage Transmission Line Radio Noise

Cited by 19 publications

References 9 publications

Optimal Phase Sequence of 750 Kv Four-Circuit Transmission Lines Considering Electromagnetic Environment

Optimal Phase Sequence of 750 Kv Four-Circuit Transmission Lines Considering Electromagnetic Environment

Pulse Current of Multi-Needle Negative Corona Discharge and Its Electromagnetic Radiation Characteristics

Störquellen

Contact Info

Product

Resources

About