Effect of Particles on the AC Breakdown Voltage of Palm Oil and Coconut Oil

2015 ◽  
Vol 793 ◽  
pp. 70-74 ◽  
Author(s):  
S.S. Sinan ◽  
J. Jasni ◽  
N. Azis ◽  
Mohd Zainal Abidin Ab Kadir ◽  
M.N. Mohtar
Keyword(s):  
Breakdown Voltage ◽  
Palm Oil ◽  
Breakdown Strength ◽  
Coconut Oil ◽  
Strength Properties ◽  
Copper Particles ◽  
Biodegradable Oils ◽  
Different Types ◽  
Current Scenario ◽  
Safety And Environment

Under current scenario of regulation on the safety and environment, biodegradable oils are gaining interest as dielectric insulating fluid in transformers. There are different types of biodegradable oils that are currently examined and among them are Palm Oil (PO) and Coconut Oil (CO). It is important to carry out extensive examination on these oils at laboratory level since the failure in-service could be costly. Among the important studies are the AC breakdown strength properties under the influence of particles. In this paper, a study is carried out to examine the influence of particles on the AC breakdown voltage of POand CO. The PO used in this study is Refined Bleached and Deodorized (RBDPO) Olein type. Two types of particles are used for the investigations which are cellulose and copper particles.Four different weights of particles are added on each of the samples and tested with the AC breakdown tester at a gap distance of 1 mm using VDE electrodes. It was found that copper particles have more significant effect on the AC breakdown strength of RBDPO and CO than cellulose particles.

scholarly journals A Study on the Lightning Impulse Breakdown Voltages of Palm Oil and Coconut Oil by Different Methods

2015 ◽  
Vol 793 ◽  
pp. 9-13 ◽  
Author(s):  
Y.V. Thien ◽  
N. Azis ◽  
J. Jasni ◽  
Mohd Zainal Abidin Ab Kadir ◽  
Robiah Yunus ◽  
...  
Keyword(s):  
Electric Field ◽  
Breakdown Voltage ◽  
Palm Oil ◽  
Coconut Oil ◽  
Uniform Electric Field ◽  
Testing Methods ◽  
Different Types ◽  
Lightning Impulse ◽  
Potential Alternative ◽  
Voltage Performance

In recent years, there have been a number of interests on the Palm Oil (PO) and Coconut Oil (CO) as a potential alternative dielectric insulating fluid in transformers which stimulate different types of studies on these oils properties. Among the important studies is the lightning impulse properties. This paper presents the investigation on the lightning impulse breakdown voltage of PO and CO under non-uniform electric field. The PO used in this study is Refined, Bleached and Deodorized Palm Oil (RBDPO) Olein type. The influence of the testing methods, rising-voltage and up-and-down are investigated at 2 gap distances for both oils. It was found that the lightning breakdown voltage performance for some of the RBDPO and CO are comparable to MO.

scholarly journals Lightning Breakdown Voltage Evaluation of Palm Oil and Coconut Oil as Transformer Oil under Quasi-Uniform Field Conditions

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2676 ◽  
Author(s):  
Nurul Katim ◽  
Mohd Ishak ◽  
Nur Mohamad Amin ◽  
Mardhiah Abdul Hamid ◽  
Khairol Amali Ahmad ◽  
...  
Keyword(s):  
Normal Distribution ◽  
Breakdown Voltage ◽  
Palm Oil ◽  
Coconut Oil ◽  
Cumulative Probability ◽  
Uniform Field ◽  
Multiple Level ◽  
Testing Methods ◽  
Distribution Fitting ◽  
Level Method

This paper presents lightning (1.2/50 µs) breakdown voltages of palm oil (PO), coconut oil (CO) and mineral oil (MO) in a quasi-uniform sphere to sphere electric field at two gap distances. The type of PO used in this study is Refined Bleached Deodorized Palm Oil (RBDPO) Olein type. The effect of voltage polarities (positive and negative) and testing methods (rising voltage, up and down and multiple level) on the lightning breakdown performance were investigated. The results indicated that lightning breakdown voltages of CO and RBDPO are comparable to those of MO under various test conditions. The results indicated that there is no polarity effect for lightning impulse breakdown tests in a quasi-uniform field. The testing methods, including rising voltage method, up and down method and multiple level method have a notable influence on the breakdown voltages. The effect of the 50% breakdown voltage on rising voltage method, up and down method and multiple level method for RBDPO and CO is comparable to MO. The withstand voltage at 1% and 50% breakdown probabilities were obtained using the Normal distribution fitting on the cumulative probability plot of impulse shots. Based on a normal distribution fitting, withstand voltages 1% breakdown probability of POA were close to the MO. Finally, based on statistical studies and simulation using ANSYS software, the prediction formulas for breakdown voltage for larger gap distances for all samples were derived.

scholarly journals Study of Breakdown Voltage of Vegetables oil with SiO2 Nanoparticle Additive

2018 ◽  
Vol 12 (1) ◽  
pp. 296
Author(s):  
Muhammad Bin Yahya ◽  
Fatin Amirah Binti Amirrazli
Keyword(s):  
Breakdown Voltage ◽  
Palm Oil ◽  
Coconut Oil ◽  
Mineral Oil ◽  
Partial Discharges ◽  
Transformer Oil ◽  
Different Temperatures ◽  
The Mean ◽  
Insulating Liquid ◽  
Positive Results

<p>This paper investigates the suitability of vegetable oils to replace mineral oil based on its AC breakdown voltage, partial discharge and viscosity. The purpose of the study is to analyze the effect of the nanofluids containing SiO<sub>2</sub> nanoparticle in vegetables oils; namely, Coconut oil and Palm oil. A nanofluid is a fluid containing nanoparticles. However, the precise effects on the electrical properties is still uncertain. For decades, transformers use petroleum-based mineral oil because of its good dielectric properties and cooling capability. Coconut oil (CO) and Palm oil (PO) are thought to be   suitable alternatives to replace mineral oil as transformer oil as they are sustainable and available in plenty as natural resources.  It was obtained in this study that the breakdown voltages of these raw oils have fulfilled the standard specifications of good insulating liquid. However, the addition of SiO<sub>2</sub> did not improve the AC breakdown voltage and viscosity of coconut oil and palm oil at different temperatures. However, the addition of SiO<sub>2</sub> gave positive results in the values of partial discharges in which the presence of the nanoparticles has greatly reduced the mean volume of partial discharges for both coconut oil and palm oil.</p>

scholarly journals Behavior of Biodegradable Oil under Impulse Voltages

2015 ◽  
Vol 785 ◽  
pp. 320-324 ◽  
Author(s):  
Nurul Izzatul Akma Katim ◽  
Mohd Taufiq Ishak ◽  
A.M. Ishak ◽  
M.Z.A.A. Kadir
Keyword(s):  
Breakdown Voltage ◽  
Palm Oil ◽  
Coconut Oil ◽  
Mineral Oil ◽  
Electrical Performance ◽  
Uniform Field ◽  
Testing Methods ◽  
Environmental Compatibility ◽  
Impulse Voltage ◽  
Lightning Impulse

The properties of Palm Oil (PO) and Coconut Oil (CO) offer the potential for transformers with non-toxicity, high fire and flash points and better environmental compatibility while compared with those filled with Mineral Oil (MO). This potential has led to intensive studies of electrical performance of biodegradable oil especially in evaluating the electrical performance under lightning impulse voltage in recent years. This paper presents the investigation on the impulse breakdown voltage of PO and CO in such a uniform field. The PO used in this study is Refined, Bleached and Deodorized Palm Oil (RBDPO) Olein type. Two testing methods, rising-voltage and up-and-down are considered for both oils with different gap distances (2.0 mm and 3.8 mm). Testing methods including rising-voltage method and up-and-down method have no notable influence on the breakdown voltages of RBDPOs and CO compared to MO.

Breakdown Strength Characteristic of RBDPO and Mineral Oil Mixture as an Alternative Insulating Liquid for Transformer

2013 ◽  
Vol 64 (4) ◽  
Author(s):  
Yusnida M. ◽  
Kiasatina Azmi ◽  
Mohd Azmier Ahmad ◽  
Zulkifli Ahmad ◽  
Mohamad Kamarol
Keyword(s):  
Breakdown Voltage ◽  
Strength Characteristic ◽  
Palm Oil ◽  
Kinematic Viscosity ◽  
Breakdown Strength ◽  
Environmental Concern ◽  
Mineral Oil ◽  
Electrical Insulation ◽  
Insulating Oil ◽  
Insulating Liquid

Mineral oil (MO) works as an important electrical insulation and coolant in transformer which is non-biodegradable and nearly running out. Therefore, for sustainable and environmental concern, an alternative biodegradable insulating oil that potential to replace the mineral oil is introduced. In view of that, the breakdown strength characteristic of Refined Bleached Deodorized Palm Oil (RBDPO) and MO mixtures were investigated by varying the mixing percentage of RBDPO from 0% to 100% at 40oC. The results showed that the breakdown strength of the oil mixture abruptly decline to the minimum breakdown voltage of 50 kV at  20% of  RBDPO mixture and gradually increased when  the ratio of the RBDPO is added. The highest breakdown strength is achieved 87kv at 80% of RBDPO content. The result of kinematic viscosity is also presented.

Investigation on Voltage Breakdown of Natural Ester Oils Based-On Zno Nanofluids

2015 ◽  
Vol 1119 ◽  
pp. 175-178 ◽  
Author(s):  
Wittawat Saenkhumwong ◽  
Amnart Suksri
Keyword(s):  
Power System ◽  
Breakdown Voltage ◽  
Palm Oil ◽  
Breakdown Strength ◽  
Mineral Oil ◽  
Transformer Oil ◽  
Slow Process ◽  
Zno Nanofluids ◽  
Voltage Breakdown ◽  
Natural Ester

Transformer is one of the major component, which is the most important device in power system. Their lifetime depends upon liquid insulation that help transfer the heat out of its winding inside of transformer. Transformer oil uses mineral oil that is the most commonly used has very slow process on decomposition and non-biodegrade. This paper presents the investigation on breakdown voltage of two types of natural ester oils, including palm oil and soy bean based-on ZnO nanofluids. Nanofluids that use nanoparticles modified by use of surfactant that are suspended by process of sonication. Different fraction of nanoparticles were investigated from 0.1% - 0.5% by weight. The breakdown voltage were measured according to ASTM D877. The voltage breakdown strength increased significantly when nanoparticles were added in oils. The obtained results will enable transformer industry to develop liquid insulation dielectric for use in transformer in the future.

scholarly journals Performance of native chicken feed with different types of oil substitution

2021 ◽  
Vol 5 (3) ◽  
pp. 156-163
Author(s):  
I. K. Sukada ◽  
A. W. Puger ◽  
I. M. Nuriyasa
Keyword(s):  
Fish Oil ◽  
Palm Oil ◽  
Coconut Oil ◽  
Nutrient Digestibility ◽  
Cooking Oil ◽  
Used Cooking Oil ◽  
Native Chicken ◽  
Different Types ◽  
Native Chickens ◽  
And Performance

This study aims to conduct a study on the use of various types of oil as a source of energy in native chickens. The treatments of this study were: native chickens were fed without using oil (A), using 3% coconut oil (B), using 3% used cooking oil (C), using 3% pork oil (D), using 3% fish oil (E). The variables observed in this study were: nutrient digestibility and performance of native chickens aged 10 weeks. The results showed that the substitution treatment for different types of oil in the native village ration had no significant effect on nutrient digestibility. Substitution of 3% used cooking oil in the feed of native chickens aged 10 weeks had no significant effect on performance, while substitution of 3% palm oil, 3% fish oil, 3% pork oil could improve the performance of native chickens aged 10 weeks. It can be concluded that substitution of used cooking oil is not recommended in native chicken feed, while palm oil, fish oil, and pork oil can be used as substitutes in native chicken feed.

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