Method for estimating the lifetime of electric motors insulation

Rusu-Zagar, Catalin; Notingher, P.; Navrapescu, Valentin; Mares, G. J.; Rusu-Zagar, Gilda; Setnescu, Tanţa; Setnescu, Radu

doi:10.1109/atee.2013.6563466

Cited by 16 publications

(14 citation statements)

References 24 publications

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“…In some other period of insulation operation, which we assume the test time 2 t , we have been obtained (2) ret U for the test voltage (2) test U .…”

Section: Quality Indicators Of the Frame Insulation Condition Based Omentioning

confidence: 99%

“…Absorption ratio subjected to (1) test U = (2) test U is a constant value. Let's introduce a new value (…”

Section: Quality Indicators Of the Frame Insulation Condition Based Omentioning

confidence: 99%

“…Such an integral indicator is the most full and accurate characteristic of the current insulation condition. This criterion is based on comparing the area of accumulated energy of the new insulation, and the insulation that has already been in operation: (2)  and (1)  , Fig. 2.…”

Section: Quality Indicators Of the Frame Insulation Condition Based Omentioning

confidence: 99%

“…The research of the insulation ageing has become an important concern to manufacturers and users of electrical equipment, in order to estimate the life reserve of the equipment. The ageing and degradation of electrical machine insulation are the phenomena that determine the lifetime of electrical machines in operation [2].…”

Section: Introductionmentioning

confidence: 99%

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Selecting the Parameters of The Diagnosis of Frame Insulation Condition in Electrical Machines of Locomotives

Капица¹,

Laguta²,

Kozik³

2018

IJET

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The purpose of this study is to determine the signs displaying the insulation ageing process and allow predicting the change in its technical condition under operation of traction motors in locomotives. In order to choose the indicators of the insulation condition, the methods of linear electrical circuits were used to analyze the equivalent scheme of frame insulation. In the equivalent scheme, the dielectric micro- and macro-heterogeneities were taken into account. The most informative parameters of the frame insulation ageing process are those related to absorption and resorption processes over time. The return voltage has been selected as the main characteristic to determine the indicators of insulation condition. The analytical dependences for determining the frame insulation condition indicators have been obtained different from those currently used in the diagnosis of electrical machines. The choice of indicators will allow predicting changes in the technical condition of frame insulation in operation. The studies will allow us to change the regular preventive maintenance technology to the maintenance based on the facility condition.

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“…In some other period of insulation operation, which we assume the test time 2 t , we have been obtained (2) ret U for the test voltage (2) test U .…”

Section: Quality Indicators Of the Frame Insulation Condition Based Omentioning

confidence: 99%

“…Absorption ratio subjected to (1) test U = (2) test U is a constant value. Let's introduce a new value (…”

Section: Quality Indicators Of the Frame Insulation Condition Based Omentioning

confidence: 99%

Section: Quality Indicators Of the Frame Insulation Condition Based Omentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Selecting the Parameters of The Diagnosis of Frame Insulation Condition in Electrical Machines of Locomotives

Капица¹,

Laguta²,

Kozik³

2018

IJET

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“…The activation energy Ea can be measured using differential scanning calorimetry as in [8] or more commonly by using accelerated ageing tests on insulation material samples as described in IEEE Std. 98 [9].…”

Section: Introductionmentioning

confidence: 99%

Online Condition Monitoring for Diagnosis and Prognosis of Insulation Degradation of Inverter-Fed Machines

Tsyokhla

Griffo

Wang

2019

IEEE Trans. Ind. Electron.

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Real-time winding insulation condition monitoring is becoming an important research topic in response to increase in high availability and reliability demands in modern drives. In this paper, a novel method is proposed to monitor ground-wall insulation of low voltage inverter-fed machines based on a multi-frequency measurement of equivalent insulation ground-wall capacitance and dissipation factor. The monitoring is applied to four machine stator samples subjected to accelerated aging until failure. Insulation degradation is continuously tracked via the capacitance and dissipation parameters. A link between ground-wall insulation capacitance and final lifetime is established. The relationship between capacitance progression and its value at final machine failure is used to develop a method for prognosis of the final failure time.

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An Energy-Related Products Compliant Eco-Design Method with Durability-Embedded Economic and Environmental Assessments

Kiling

Shin

Lee

et al. 2020

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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Method for estimating the lifetime of electric motors insulation

Cited by 16 publications

References 24 publications

Selecting the Parameters of The Diagnosis of Frame Insulation Condition in Electrical Machines of Locomotives

Selecting the Parameters of The Diagnosis of Frame Insulation Condition in Electrical Machines of Locomotives

Online Condition Monitoring for Diagnosis and Prognosis of Insulation Degradation of Inverter-Fed Machines

An Energy-Related Products Compliant Eco-Design Method with Durability-Embedded Economic and Environmental Assessments

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