Harmonic Components Analysis of Emitted Ultraviolet Signals of Aged Transmission Line Insulators under Different Surface Discharge Intensities
Abstract
:1. Introduction
2. DC Components and Harmonics of Periodic Signals
3. Methodology
3.1. Experiment Setup
3.2. Ultra Violet Pulse (UVP) Sensor
3.3. Insulator Samples
3.3.1. Aged Insulator
3.3.2. Contamination Level
3.4. Determination of DC Component from UVP Signal
4. Results and Discussion
4.1. DC Component Analysis
4.1.1. DC Component Based on Insulator Ages and Contamination
4.1.2. Contaminated Insulator Samples
4.1.3. Aged Insulator Samples
4.1.4. Percentages Differences of the Insulator Samples’ Discharge Intensity Levels
4.2. UV Signal Harmonic Component
4.2.1. Contaminated Insulator Samples
4.2.2. Aged Insulator Samples
4.2.3. Average Harmonic Component of Insulator Samples
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Discharge Intensity Level | Characteristics |
---|---|
Hissing | Hissing without any visible discharge |
Discharge at pin of the insulators | Hissing sound plus spot discharges at the pin of the insulators |
Discharge at cap and pin of the insulators | Louder hissing noise, discharges at both the pin and cap of the insulator samples |
Severed discharge | Very loud hissing noise, intense sparking discharge on the pin and cap of the insulator (just prior to flashover) |
Parameter | Description/Value | Unit | |
---|---|---|---|
General | Spectral Response | 185 to 260 | nm |
Window Material | UV glass | - | |
Weight | Approximate 1.5 | ||
Maximum Rating | Supply Voltage | 400 | V |
Peak Current | 30 | mA | |
Average Discharge Current | 1 | mA | |
Operating Temperature | −20 to +60 | °C | |
Characteristics (at 25 °C) | Discharge Starting Voltage (with UV radiation) (DC) | 280 | V |
Recommended Operation Voltage (DC) | 325 ± 25 | V | |
Background | 10 | min−1 | |
Sensitivity | 5000 | min−1 |
Insulator Sample | Descriptions |
---|---|
| a) Insulators Age: Less than 10 Years b) Condition: Good |
| a) Insulators Age: 10 to 20 Years b) Condition: Mild corrosion at cap |
| a) Insulators Age: More than 20 Years b) Condition: Discoloration of glass dielectric, severely corroded cap and pin |
Salt (g/L) | ESDD (mg/cm2) [15] | Contamination Level [18] |
---|---|---|
0 | N/A | None |
5 | 0.06 | Light |
30 | 0.21 | Medium |
120 | 0.47 | Heavy |
Discharge Intensity Level | Exponential Equation |
---|---|
Hissing | y = 0.0743e0.0006x |
Discharge at Pin | y = 0.1196e0.0004x |
Discharge at Pin and Cap | y = 0.1321e0.001x |
Severe Discharge | y = 0.1875e−0.001x |
Discharge Intensity Level | Exponential Equation |
---|---|
Hissing | y = 0.064e0.0116x |
Discharge at Pin | y = 0.1233e−0.001x |
Discharge at Pin and Cap | y = 0.121e0.0084x |
Severe Discharge | y = 0.1248e0.0241x |
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Suhaimi, S.M.I.; Muhamad, N.A.; Bashir, N.; Mohd Jamil, M.K.; Abdul Rahman, M.N. Harmonic Components Analysis of Emitted Ultraviolet Signals of Aged Transmission Line Insulators under Different Surface Discharge Intensities. Sensors 2022, 22, 722. https://doi.org/10.3390/s22030722
Suhaimi SMI, Muhamad NA, Bashir N, Mohd Jamil MK, Abdul Rahman MN. Harmonic Components Analysis of Emitted Ultraviolet Signals of Aged Transmission Line Insulators under Different Surface Discharge Intensities. Sensors. 2022; 22(3):722. https://doi.org/10.3390/s22030722
Chicago/Turabian StyleSuhaimi, Saiful Mohammad Iezham, Nor Asiah Muhamad, Nouruddeen Bashir, Mohamad Kamarol Mohd Jamil, and Mohd Nazri Abdul Rahman. 2022. "Harmonic Components Analysis of Emitted Ultraviolet Signals of Aged Transmission Line Insulators under Different Surface Discharge Intensities" Sensors 22, no. 3: 722. https://doi.org/10.3390/s22030722
APA StyleSuhaimi, S. M. I., Muhamad, N. A., Bashir, N., Mohd Jamil, M. K., & Abdul Rahman, M. N. (2022). Harmonic Components Analysis of Emitted Ultraviolet Signals of Aged Transmission Line Insulators under Different Surface Discharge Intensities. Sensors, 22(3), 722. https://doi.org/10.3390/s22030722