Induced voltage test of distribution transformers using static frequency inverters

Mohseni, Hossein; Akmal, A. Shayegani; Jadidian, J.; Hashemi, Ehsan; Agheb, E.; Naieny, A.; Ghorbandaeipour, A.; Niayesh, Kaveh

doi:10.1109/tdc.2008.4517234

Cited by 5 publications

(4 citation statements)

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“…The performance of the enhanced ZSI is much greater than the conventional system. The red color in the graph represents the enhanced system and the blue color lines represent the conventional drive system [7]. The frequency level of the conventional system takes more time to startup when compared to the enhanced ZSI.…”

Section: Comparison Analysismentioning

confidence: 99%

Induced over voltage test on transformers using enhanced Z-source inverter based circuit

Peter¹,

Sherine²

2017

Journal of Electrical Engineering

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The normal life of a transformer is well above 25 years. The economical operation of the distribution system has its roots in the equipments being used. The economy being such, that it is financially advantageous to replace transformers with more than 15 years of service in the second perennial market. Testing of transformer is required, as its an indication of the extent to which a transformer can comply with the customers specified requirements and the respective standards (IEC 60076-3). In this paper, induced over voltage testing on transformers using enhanced Z source inverter is discussed. Power electronic circuits are now essential for a whole array of industrial electronic products. The bulky motor generator set, which is used to generate the required frequency to conduct the induced over voltage testing of transformers is nowadays replaced by static frequency converter. First conventional Z-source inverter, and second an enhanced Z source inverter is being used to generate the required voltage and frequency to test the transformer for induced over voltage test, and its characteristics is analysed.

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Section: Comparison Analysismentioning

confidence: 99%

Induced over voltage test on transformers using enhanced Z-source inverter based circuit

Peter¹,

Sherine²

2017

Journal of Electrical Engineering

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“…90-200690- , IEC 60.076-3 de 2000 To make the voltage induction effective in the high voltage winding, the frequency and the test time is adjusted. Generally, the induction frequency is doubled to avoid saturation in the ferromagnetic core (Mohseni et al, 2008, McDermid, 2016 and the test is executed for one minute. The time and frequency parameters can be adjusted as long as 7200 cycles of the sinusoidal wave are guaranteed.…”

Section: Introductionmentioning

confidence: 99%

Electrical Modeling of the Induced Voltage Test in Power Transformers for the Analysis of Frequency Response

Niquepa¹,

Galeano²,

Patiño³

et al. 2020

J. Eng. Appl. Sci.

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The structure of the induced voltage test model for low frequency transients is described and presented from its components (generator, auxiliary and power transformer). The performed test procedures are perfomed to estimate the model parameters along with the topology of their connection. Finally, the model is implemented in the transient analysis software ATP and a frequency response of the test is obtained. This allows to identify the critical frequencies that cause resonant states and cause overvoltage during the test which facilitates the establishment of application of safety criteria for both operators and the equipment.

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“…These approaches are mainly centered in: DGA [5][6][7][8][9], TTR [10] and induced voltage tests [11][12].…”

Section: Introductionmentioning

confidence: 99%

Using intelligent systems in experimental signal analysis for power transformer diagnosis

Silva

Flauzino

Spatti

et al. 2014

2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings

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This paper presents detailed intelligent techniques concepts commonly used in power transformer signals analysis. It will be given more attention to Dissolved Gas Analysis (DGA), Transformer Turn Ratio (TTR) and Induced Voltage tests. The main purpose of the work is to establish a database and intelligent system specification that stores all data acquired from testing and therefore make it possible, for an expert system based on intelligent tools, make integration and data analysis.

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Induced voltage test of distribution transformers using static frequency inverters

Cited by 5 publications

References 0 publications

Induced over voltage test on transformers using enhanced Z-source inverter based circuit

Induced over voltage test on transformers using enhanced Z-source inverter based circuit

Electrical Modeling of the Induced Voltage Test in Power Transformers for the Analysis of Frequency Response

Using intelligent systems in experimental signal analysis for power transformer diagnosis

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