Calculation of Very Fast Transient Overvoltage for 800 kV GIS Substation

Yapei Liu; Shengjun Lin; Wensheng Gao; Zhijun Wang; Guangyao Jin; Yingjie Sun; Bo Zhang; Haichuan He

doi:10.13296/j.1001-1609.hva.2017.09.024

Calculation of Very Fast Transient Overvoltage for 800 kV GIS Substation

Yapei Liu, Shengjun Lin, Wensheng Gao, Zhijun Wang, Guangyao Jin, Yingjie Sun, Bo Zhang, Haichuan He

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The very fast transient overvoltage(VFTO) caused by operation of disconnector in a GIS substation will harm the GIS equipment, the transformer, and the secondary equipment connected with GIS due to its high amplitude. In this study, for design and layout of GIS substation, this paper calculated the parameter of major equipment of a 800 kV GIS substation, and the calculation was verified by measurement. Moreover, EMTP program was adopted to simulate the VFTO generated by disconnector in six different operating modes, thus the maximum values and location of VFTO in the six different operating modes of disconnector were obtained. comparison with the safe criteria indicated that the insulation of the 800 kV GIS substation meets the requirements. In addition, the factors influencing VFTO amplitude, such as residual voltage, damping resistance and short-bus length, were analyzed.

Original language	English
Pages (from-to)	143-148 and 154
Journal	Gaoya Dianqi/High Voltage Apparatus
Volume	53
Issue number	9
DOIs	https://doi.org/10.13296/j.1001-1609.hva.2017.09.024
State	Published - Sep 16 2017
Externally published	Yes

Keywords

Disconnector
EMTP
GIS
VFTO

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10.13296/j.1001-1609.hva.2017.09.024

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title = "Calculation of Very Fast Transient Overvoltage for 800 kV GIS Substation",

abstract = "The very fast transient overvoltage(VFTO) caused by operation of disconnector in a GIS substation will harm the GIS equipment, the transformer, and the secondary equipment connected with GIS due to its high amplitude. In this study, for design and layout of GIS substation, this paper calculated the parameter of major equipment of a 800 kV GIS substation, and the calculation was verified by measurement. Moreover, EMTP program was adopted to simulate the VFTO generated by disconnector in six different operating modes, thus the maximum values and location of VFTO in the six different operating modes of disconnector were obtained. comparison with the safe criteria indicated that the insulation of the 800 kV GIS substation meets the requirements. In addition, the factors influencing VFTO amplitude, such as residual voltage, damping resistance and short-bus length, were analyzed.",

keywords = "Disconnector, EMTP, GIS, VFTO",

author = "Yapei Liu and Shengjun Lin and Wensheng Gao and Zhijun Wang and Guangyao Jin and Yingjie Sun and Bo Zhang and Haichuan He",

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doi = "10.13296/j.1001-1609.hva.2017.09.024",

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T1 - Calculation of Very Fast Transient Overvoltage for 800 kV GIS Substation

AU - Liu, Yapei

AU - Lin, Shengjun

AU - Gao, Wensheng

AU - Wang, Zhijun

AU - Jin, Guangyao

AU - Sun, Yingjie

AU - Zhang, Bo

AU - He, Haichuan

PY - 2017/9/16

Y1 - 2017/9/16

N2 - The very fast transient overvoltage(VFTO) caused by operation of disconnector in a GIS substation will harm the GIS equipment, the transformer, and the secondary equipment connected with GIS due to its high amplitude. In this study, for design and layout of GIS substation, this paper calculated the parameter of major equipment of a 800 kV GIS substation, and the calculation was verified by measurement. Moreover, EMTP program was adopted to simulate the VFTO generated by disconnector in six different operating modes, thus the maximum values and location of VFTO in the six different operating modes of disconnector were obtained. comparison with the safe criteria indicated that the insulation of the 800 kV GIS substation meets the requirements. In addition, the factors influencing VFTO amplitude, such as residual voltage, damping resistance and short-bus length, were analyzed.

AB - The very fast transient overvoltage(VFTO) caused by operation of disconnector in a GIS substation will harm the GIS equipment, the transformer, and the secondary equipment connected with GIS due to its high amplitude. In this study, for design and layout of GIS substation, this paper calculated the parameter of major equipment of a 800 kV GIS substation, and the calculation was verified by measurement. Moreover, EMTP program was adopted to simulate the VFTO generated by disconnector in six different operating modes, thus the maximum values and location of VFTO in the six different operating modes of disconnector were obtained. comparison with the safe criteria indicated that the insulation of the 800 kV GIS substation meets the requirements. In addition, the factors influencing VFTO amplitude, such as residual voltage, damping resistance and short-bus length, were analyzed.

KW - Disconnector

KW - EMTP

KW - GIS

KW - VFTO

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VL - 53

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IS - 9

ER -

Calculation of Very Fast Transient Overvoltage for 800 kV GIS Substation

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Keywords

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