Identification of electrical discharge forms, generated in insulating oil, using the optical spectrophotometry method

2019 ◽  
Vol 13 (3) ◽  
pp. 416-425 ◽  
Author(s):  
Michał Kozioł ◽  
Tomasz Boczar ◽  
Łukasz Nagi
Keyword(s):  
Electrical Discharge ◽  
Insulating Oil ◽  
Optical Spectrophotometry

scholarly journals Effect of repeated electrical breakdowns on mineral and natural ester insulating oils

2021 ◽  
Vol 10 (6) ◽  
pp. 2989-2996
Author(s):  
Sharin Ab Ghani ◽  
Mohd Shahril Ahmad Khiar ◽  
Imran Sutan Chairul ◽  
Muhammad Imran Zamir
Keyword(s):  
Breakdown Voltage ◽  
Electrical Discharge ◽  
Electrical Breakdown ◽  
Standard Test ◽  
Test Method ◽  
Power Transformers ◽  
Insulating Oil ◽  
Different Types ◽  
Increasing Demand ◽  
Natural Ester

Transformer insulating oils are exposed to repeated electrical discharge or breakdowns inside power transformers. Durability tests are conducted to analyze the ability of oil to resist decomposition due to such high electrical stresses. With the increasing demand for alternative insulating oils for oil-immersed transformers, it is worthy to compare the performance of different types of insulating oils (conventional mineral-based insulating oil and natural ester-based insulating oil) under repeated electrical breakdown. In this paper, the AC breakdown voltage of different mineral-based and natural ester-based insulating oils is reported. Durability tests were conducted based on the AC breakdown voltage behavior of insulating oils after 50 electrical breakdown shots. The AC breakdown voltage of each insulating oil sample was assessed according to the ASTM D1816 standard test method. Based on the results, it can be concluded that the dissimilarity in chemical composition of the insulating oils has a significant effect on the AC breakdown voltage behavior of these oils under repeated electrical breakdowns.

Effects of Electrical Discharges in Low Pressure Gases on the Morphology of Polyethylene Crystals

1974 ◽  
Vol 32 ◽  
pp. 544-545
Author(s):  
L.H. Bolz ◽  
D.H. Reneker
Keyword(s):  
Power Distribution ◽  
Electrical Discharge ◽  
Dielectric Breakdown ◽  
Ionic Species ◽  
Low Pressure ◽  
Polymer Surfaces ◽  
Electrical Discharges ◽  
Adhesive Bonds ◽  
Power Distribution Lines ◽  
Modification Of The Surface

The attack, on the surface of a polymer, by the atomic, molecular and ionic species that are created in a low pressure electrical discharge in a gas is interesting because: 1) significant interior morphological features may be revealed, 2) dielectric breakdown of polymeric insulation on high voltage power distribution lines involves the attack on the polymer of such species created in a corona discharge, 3) adhesive bonds formed between polymer surfaces subjected to such SDecies are much stronger than bonds between untreated surfaces, 4) the chemical modification of the surface creates a reactive surface to which a thin layer of another polymer may be bonded by glow discharge polymerization.

A study of electrical discharge in polyacetal capillary

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-575-Pr2-578
Author(s):  
M. Vrbová ◽  
A. Jancárek ◽  
L. Pína ◽  
P. Vrba ◽  
N. A. Bobrova ◽  
...  
Keyword(s):  
Electrical Discharge

Evolved Gas from Insulating Oil Heating under Oxygen Existence

2011 ◽  
Vol 131 (9) ◽  
pp. 764-770
Author(s):  
Kiwamu Miyajima ◽  
Takahiro Sawatsu
Keyword(s):  
Evolved Gas ◽  
Insulating Oil

Pressure Rises due to Arc under Insulating Oil in Closed Vessel

2016 ◽  
Vol 136 (2) ◽  
pp. 175-183 ◽  
Author(s):  
Tomo Tadokoro ◽  
Masashi Kotari ◽  
Toshiya Ohtaka ◽  
Mikimasa Iwata ◽  
Tadashi Amakawa
Keyword(s):  
Closed Vessel ◽  
Insulating Oil
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