Oil-paper insulation characteristic and maintenance measures of oil-immersed transformer in cold environment

Sun, Jianjun; Zhang, Shuqi; Xu, Zhengyu; Wu, Chao; Yu, Xinru; Qiu, Yuzhou; Gao, Ziwei

doi:10.1109/icdl.2017.8124667

Cited by 8 publications

(5 citation statements)

References 4 publications

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“…Various properties like breakdown strength, viscosity, and flash point were studied. Results proved that the activated carbon and antioxidants improve the quality of transformer oil for reuse [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 88%

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Life Extension Of Transformer Mineral Oil Using AI-Based Strategy For Reduction Of Oxidative Products

Vyas¹

2021

TURCOMAT

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The power system operational reliability depends on the proper functioning of transformers. The decreased quality of mineral oil deteriorates the insulation of the transformer results in the failure of the transformer. Thus, maintaining the quality of the mineral oil is a severe issue for power utilities. The major cause of mineral oil deterioration is the formation of oxidative products due to the over-temperature and overloading conditions. This research paper presents an artificial intelligence-based strategy for the reduction of oxidative products by regulating the temperature level accordingly. During the various critical operating conditions, the temperature sensor measures the temperature of mineral oil. The neural network is trained to recognise the various abnormal events according to increased temperature level.

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Section: Introductionmentioning

confidence: 88%

“…Although, there is a very publication are available to reduce the formation of oxidative products. Thus, there is an urgent need for an intelligent technique to lessen the oxidative products and sludge [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Life Extension Of Transformer Mineral Oil Using AI-Based Strategy For Reduction Of Oxidative Products

Vyas¹

2021

TURCOMAT

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“…But at the same time, the media inside may be influenced by temperature, therefore, the oil should be in motion state to decrease the dispersion of insulation weaknesses [10].…”

Section: Oil/other Media Actively Cooling-downmentioning

confidence: 99%

Cooling and insulation design of power electronic transformers

Chen

2023

ACE

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In the case that the usage of power electronic transformers (PETs) has become a trend, research on minimizing the energy loss of PETs is imperative. Meanwhile, the miniaturization of PETs was considered a meaningful way to relief the problem to the maximum extent. And in the problems of miniaturization, the insulation design and the cooling-down design was considered the head of the problems because these two problems could result in an increase of energy loss, which is conflict with the goal of miniaturization. The basic requirement for insulation design is to keep the circuit from the damage of incidents like arc, which brought this job a status of the key to the miniaturization. But what made this trickier is that the design should also satisfy the demand of miniaturization. For the cooling-down design, a design could undertake the task but with smaller volume and lower cost would be favorable for users, but the change of circumstance could lead to different optimum design. Therefore, a study on these two fields is critical, in this essay, the insulation design would be firstly introduced and then the cooling-down design. Due to the status of the two problems mentioned above, the study showed in this paper would have a great value for the research and application of miniaturization of PETs.

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“…Assess the quality of oil only. Allows for faults diagnoses only There are a few indirect techniques for finding the moisture level in cellulose paper (Sun et al, 2017b). These techniques require accumulation of test sample from basic part, for example, (outside windings, leads) and then analysing them in research lab by Karl-Fischer titration (Suleiman et al, 2017).…”

Section: Using Manual Calculations and Graphical Estimationmentioning

confidence: 99%

A review on fault detection and condition monitoring of power transformer

Aslam¹

2019

Int. j. adv. appl. sci.

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Real-time monitoring of transformers ensures equipment safety and guarantees the necessary intervention in precise time thereby reducing the risk of non-schedule energy blackouts. Many utilities monitor the condition of the components that make up a power transformer and use this information to minimize interruption and prolong life. Currently, routine and diagnostic tests are used to monitor conditions and assess the aging and defects of the core, windings, bushings and power transformer tape changers. To accurately assess the remaining life and probability of failure, methods have been developed to correlate the results of different routine and diagnostic tests. There are several electrical and chemical (diagnostic) techniques available for condition monitoring of power transformer. This paper reviews real time techniques used for condition-based monitoring of power transformer.

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Oil-paper insulation characteristic and maintenance measures of oil-immersed transformer in cold environment

Cited by 8 publications

References 4 publications

Life Extension Of Transformer Mineral Oil Using AI-Based Strategy For Reduction Of Oxidative Products

Life Extension Of Transformer Mineral Oil Using AI-Based Strategy For Reduction Of Oxidative Products

Cooling and insulation design of power electronic transformers

A review on fault detection and condition monitoring of power transformer

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