Switching Impulse Tests of EHV and UHV Transformers

Thione, L.; Spinelli, A.S.; Bossi, A.; Sesto, E.; Sigaudi, G.; Babare, A.

doi:10.1109/tpas.1980.319673

Cited by 7 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, this test is not performed in the field for the impulse voltage generator huge and difficult to operate. IEC60060-3 propose using oscillating impulse voltage for equipment impulse withstand voltage test in field [1][2][3]. Oscillating impulse voltage has higher generation efficiency and close to the actual voltage waveform.…”

Section: Introductionmentioning

confidence: 99%

The Study of Oscillating Lightning Impulse Voltage Generator for a 110kV GIS Field Test

Yang

Jia

Zhou

et al. 2014

AMM

View full text Add to dashboard Cite

The impulse voltage test for power equipment such as GIS is not performed in the field for the impulse voltage generator huge and difficult to operate. The oscillating impulse voltage that proposed by IEC60060-3 is a higher generation efficiency impulse waveform and suitable used in field. The oscillating lightning impulse voltage generator for a 110kV GIS field test is studied in this paper. The generator structure is described and the waveform parameter computer formula is derivate. Simulation and test shown the generator can produce impulse voltage that meet IEC60060-3 requirement.

show abstract

Section: Introductionmentioning

confidence: 99%

The Study of Oscillating Lightning Impulse Voltage Generator for a 110kV GIS Field Test

Yang

Jia

Zhou

et al. 2014

AMM

View full text Add to dashboard Cite

show abstract

“…However, this test is not performed in the field for the impulse voltage generator huge and difficult to operate. To solve this problem, IEC60060-3 propose using oscillating impulse voltage for equipment on-site impulse withstand voltage test [1][2]. Oscillating impulse voltage has higher generation efficiency and close to the actual voltage waveform that electrical equipment bear.…”

Section: Introductionmentioning

confidence: 99%

The Simulation Study of Transformer Inductive Oscillating Switching Impulse Voltage Generation

Liang

Wang

et al. 2014

AMM

View full text Add to dashboard Cite

According to IEC60060-1, IEC60060-2 requirements, the large transformer should take impulse voltage test in site. However, this test is not performed in the field for the impulse voltage generator huge and difficult to operate. To solve this problem, IEC60060-3 propose using oscillating impulse voltage for equipment on-site impulse withstand voltage test. Oscillating impulse voltage has higher generation efficiency and close to the actual voltage waveform that electrical equipment bear. For the transformer, the oscillating impulse voltage can generated through inductive method. In order to study the generation of oscillating impulse voltage through inductive method for transformer, the simulation circuit is established using ATP soft and the oscillating switching impulse voltage characteristics is studied in this paper. The result show that the oscillating switching impulse voltage waveform that accordance with IEC requirements can be generated through inductive method for transformer.

show abstract

“…In recent years, with electrical apparatus voltage levels is rising constantly, and the large demands for extra-high-voltage electrical apparatus, the traditional impulse voltage withstanding tests no longer meet the requirements for high voltage apparatus on-site tests. In order to ensure system reliability and wipe out the threats that the incipient faults from insulation inside the apparatus, it is recommended by relative standards to carry out oscillating impulse withstanding tests on electrical apparatus on-site tests, especially the oscillating switching impulse withstanding tests for power transformer [1]. The traditional generation device of double exponential wave is disadvantageous for experiments on-site because of its complex structure and low efficiency.…”

Section: Introductionmentioning

confidence: 99%

Generation Oscillating Switching Impulse Using Power Transformer

Ding

Guo

et al. 2012

AMM

View full text Add to dashboard Cite

According to IEC60060-1, IEC60060-2 requirements, on-site tests for the high voltage apparatus can not be achieved due to many external factors such as the huge impulse voltage source and external electrical and magnetic fields, weather condition, etc. Therefore, IEC60060-3 points out the impulse waveforms for the high voltage apparatus during on-site tests, one of the impulse waveforms is the oscillating switching impulse, but the oscillating switching impulse source with high amplitude is a bulky test equipment which is not suitable for the on-site test, consequently the demands for portable oscillating switching impulse source is urgent. This paper presents that the high oscillating switching impulse voltage can be generated by a low oscillating switching impulse voltage with the power transformer which is the test object, the simulation and experiment results show this method can be used for the power transformer during oscillating switching impulse on-site test.

show abstract

Switching Impulse Tests of EHV and UHV Transformers

Cited by 7 publications

References 3 publications

The Study of Oscillating Lightning Impulse Voltage Generator for a 110kV GIS Field Test

The Study of Oscillating Lightning Impulse Voltage Generator for a 110kV GIS Field Test

The Simulation Study of Transformer Inductive Oscillating Switching Impulse Voltage Generation

Generation Oscillating Switching Impulse Using Power Transformer

Contact Info

Product

Resources

About