A novel method to measure the contamination level of insulators-spot contamination measurement

Besztercey, G.; Karady, G.G.; Ruff, D.L.

doi:10.1109/elinsl.1998.694811

Cited by 4 publications

(5 citation statements)

References 3 publications

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“…Karena konduktivitas larutan polutan disetarakan dengan konduktivitas larutan garam dalam air, maka metode pengukuran ini disebut metode "Equivalent Salt Deposit Density" (ESDD). Pengukuran tingkat intensitas polutan yang mencemari suatu isolator dengan metode ini disebut metode ESDD [6,7,8].…”

Section: Metodologi Pengukuran Intensitas Polutan Isolatorunclassified

Hubungan Intensitas Polusi Isolator Jaringan Distribusi di Sumatera Utara dengan Jarak Lokasi Isolator dari Pantai

Lubis¹

2008

jte

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ABSTRAKPaper ini melaporkan hasil penelitian tentang tingkat intensitas polusi pada isolator jaringan distribusi hantaran udara 20 kV di Sumatera Utara. Ditemukan bahwa tingkat intensitas polusi isolator jaringan distribusi hantaran udara 20 kV di Sumatera Utara termasuk kategori ringan. Intensitas polusi pada suatu isolator semakin rendah jika isolator semakin jauh dari pantai. Setelah jarak isolator dari pantai mencapai kurang lebih 40 km, intensitas polusi pada isolator turun ± 50 % dari intensitas polusi isolator yang terdekat ke pantai. Pada jarak di antara 40 -80 km dari pantai, intensitas polusi isolator hampir konstan. Artinya, kandungan garam yang dibawa angin laut tidak berpengaruh lagi terhadap polutan isolator jika jarak isolator dari pantai lebih dari 40 km.Kata kunci: distribusi, isolator, polusi, ESDD. ABSTRACT This paper reports the result of research about the pollution intensity of the insulator of 20 kV electrical distribution network in North Sumatera. It has investigated that the pollution intensity of the insulator of 20 kV electrical distribution network in North Sumatera is in low category. The pollution intensity of an insulator is decrease if the distance of mentioned insulator more far away from the seashore. If the distance of insulator from seashore about 40 km, the decreasing of pollution intensity reach to ± 50 % of pollution intensity of insulator that close to the seashore. The pollution intensity of insulator almost constant if the distance of insulator from seashore is between 40 km to 80 km. It means that the salt contained on air which is blow from the sea is not influence on insulator pollution if the distance of mentioned insulator from seashore more than 40 kmKeywords: distribution, insulator, pollution, ESDD. PENDAHULUANSalah satu komponen utama dari jaringan distribusi tenaga listrik hantaran udara adalah isolator. Isolator berfungsi mengisolir konduktor jaringan yang bertegangan dengan tiang penyangga konduktor agar arus listrik tidak mengalir dari konduktor jaringan ke tanah. Ada beberapa hal yang dapat membuat isolator gagal melaksanakan fungsinya, salah satu di antaranya adalah peristiwa lewat-denyar. Peristiwa lewatdenyar pada suatu isolator dapat mengakibatkan terjadinya hubung singkat ke tanah dan pada akhirnya dapat menimbulkan terputusnya pengiriman energi listrik kepada konsumen. Terjadinya lewat-denyar pada suatu isolator tergantung kepada: kekuatan isolasi isolator; tegangan yang dipikul isolator; temperatur, tekanan dan kelembaban udara di sekitar isolator; dan konduktivitas polutan yang menempel pada isolator tersebut. Polutan yang menempel pada suatu isolator berasal dari polutan yang terdapat pada udara di sekitar isolator tersebut. Polutan yang terbawa udara dapat menempel pada permukaan isolator dan berangsurangsur membentuk suatu lapisan yang tipis pada permukaan isolator. Polutan yang paling berpengaruh terhadap lewat denyar isolator adalah unsur garam. Unsur garam yang mencemari suatu isolator sebagian besar berasal dari angin laut. Angin laut dapat ...

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Section: Metodologi Pengukuran Intensitas Polutan Isolatorunclassified

Hubungan Intensitas Polusi Isolator Jaringan Distribusi di Sumatera Utara dengan Jarak Lokasi Isolator dari Pantai

Lubis¹

2008

jte

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“…In addition, a mathematical model expressed in terms of the creepage distance of the insulator and SDD has been developed by using dimensional analysis [5] to determine the pollution level of insulator. Furthermore, practical approach employed online test equipment has been conducted in [6] to measure the pollution severity of high voltage (HV) transmission insulators.…”

Section: Introductionmentioning

confidence: 99%

Measurement of pollution level of 66 kV transmission line insulators

Salam

Ang

Ong

et al. 2013

2013 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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The presence of unwanted constituent on insulator surface of transmission tower plays an important ignition property for the likelihood of occurrence of flashover. In this paper, the pollution level of two aged insulators namely the longrod silicon rubber and the cap-and-pin glass insulators are measured. The results from the measurement shows that the Equivalent Salt Deposit Density (ESDD) of the cap-and-pin glass insulator, particularly near the pin is found to be 0.169 mg/cm 2 while the composition over the cap surface is 0.136 mg/cm 2 . For the case of longrod silicon rubber insulator, the ESDD for both the pin and the cap are found to be 0.063 mg/cm 2 and 0.016 mg/cm 2 respectively. The outcomes from the ESDD measurements suggest that the cap-and-pin glass insulator string is severely contaminated with salt spray as compared to the longrod silicon rubber. Furthermore, a mathematical model of ESDD expressed in terms of salinity and temperature for both insulators is derived from multivariable regression method. The coefficients for both the cap-and-pin glass and longrod silicon rubber insulator are found to be 0.9984 and 0.9867 respectively.

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“…The solution conductivity was measured by means of HORIBA B-173 compact conductivity meter 10 minutes after filling the probe. After that the ESDD or ECDD was calculated using formula given in [6]. The mean value of surface conductivity measured by strip probe on polluted glass surface calculated from 10 points amounted about 100 µS.…”

Section: Iec Probe [1 9]mentioning

confidence: 99%

“…The ESDD on glass plate or ECDD on silicone rubber plates was measured as a function of time according to the procedure described in [6]. Time zero is assumed as time when the plate became dry.…”

Section: Iec Probe [1 9]mentioning

confidence: 99%

“…Pilling proposed a method for calculation of an effective surface conductivity which can be used for estimation of flashover voltage [4]. Probes have also been described to measure the ESDD on a small area of insulator in order to determine the distribution of contamination deposition [6,7]. Probes employ differently shaped electrodes.…”

Section: Probes For Spot Measurements Of Surface Conductivitymentioning

confidence: 99%

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Probes for spot measurement of surface conductivity on polluted insulators

Chrzan

Stec

Farzaneh

2007

IET Sci. Meas. Technol.

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Abstract:The surface conductivity of insulators in the field is usually very non-uniformly distributed. In this case the integral surface conductivity is not an appropriate parameter of pollution severity. A better evaluation can be achieved on the basis of local conductivity measurements by means of special probes, e.g. the rod probe or tissue strip probe. In this paper the form factors of different probes are given, and the influence of wet-contamination area, the meniscus and the pollution layer thickness on the measured value of surface conductivity are shown. It was found that the surface conductivity on polluted silicone rubber measured by a tissue strip probe is proportional to the Equivalent Contamination Deposit Density ECDD.

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A novel method to measure the contamination level of insulators-spot contamination measurement

Cited by 4 publications

References 3 publications

Hubungan Intensitas Polusi Isolator Jaringan Distribusi di Sumatera Utara dengan Jarak Lokasi Isolator dari Pantai

Hubungan Intensitas Polusi Isolator Jaringan Distribusi di Sumatera Utara dengan Jarak Lokasi Isolator dari Pantai

Measurement of pollution level of 66 kV transmission line insulators

Probes for spot measurement of surface conductivity on polluted insulators

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