Very fast transients in GIS

Meppelink, J.; Diederich, K.J.; Feser, K.; Pfaff, Wolfgang

doi:10.1109/61.19208

Cited by 174 publications

(42 citation statements)

References 5 publications

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“…Therefore, this paper performs the modelling of each component using the values recommended by IEEE as shown in Table 1 [1][2][3][4].…”

Section: Modelling Of Each Component In Gismentioning

confidence: 99%

“…During the switching operation, a number of pre-strikes or re-strikes occur because of the slow speed of the moving contact of DS. These strikes generate VFTO with very high frequency oscillations [1][2][3][4][5][6][7][8]. Even though their magnitudes are lower than Basic Insulation Level (BIL) of the system, they contribute to the aging on the insulation of the system due to their frequent occurrences.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of Magnitude and Rate-of-rise of VFTO in 550 kV GIS using EMTP-RV

Seo¹,

Jang²,

Kim³

et al. 2013

Journal of Electrical Engineering and Technology

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-Very Fast Transients (VFT) originate mainly from disconnector switching operations in Gas Insulated Substations (GIS). In order to determine the rate-of-rise of Very Fast Transient Overvoltage (VFTO) in a 550 kV GIS, simulations are carried out using EMTP-RV. Each component of the GIS is modeled by distributed line model and lumped model based on equivalent circuits. The various switching conditions according to closing point-on-wave and trapped charge are simulated, and the results are analyzed. Also, the analysis of travelling wave using a lattice diagram is conducted to verify the simulation results.

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“…Therefore, this paper performs the modelling of each component using the values recommended by IEEE as shown in Table 1 [1][2][3][4].…”

Section: Modelling Of Each Component In Gismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of Magnitude and Rate-of-rise of VFTO in 550 kV GIS using EMTP-RV

Seo¹,

Jang²,

Kim³

et al. 2013

Journal of Electrical Engineering and Technology

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“…GIS system over-voltage from isolation switch, the routine operation of the circuit breaker and ground fault, it is caused by operation or malfunction recognition [11]. Closing no-load long lines is one of the common operations in power system.…”

Section: Gis System Closing No-load Long Lines Overvoltage Analysismentioning

confidence: 99%

Study on Very Fast Transient Overvoltage of Closing No-load China UHV Transmission Demonstration Project Jindongnan-Nanyang-Jingmen 1000 kV Transmission Lines

Ye¹,

Li²,

Bai³

et al. 2014

IJGDC

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“…VFTO is the phenomenon of transient overvoltage generated during switching operation characterized by very short rise-time of 4 to 100 ns and has been covered by various literatures [3,[12][13][14][15][16][17][18][19][20][21][22]. The phenomenon is particularly significant during Disconnect Switch (DS) operation due to multiple-restriking in the DS due to lack of arc-suppressing chamber.…”

Section: Switching Surges and Very Fast Transient Overvoltage (Vfto)mentioning

confidence: 99%

“…In the past, VFTO was not considered to be possible to transfer from EHV through power transformer to medium voltage (MV) system [12][13][14]. However, in light of the "318 Event", a field test was conducted in Taipower 3 rd NPP during plant overhaul by switching the DS of EHV GIS and measure the voltage on "Essential Bus A".…”

Section: Field Measurementmentioning

confidence: 99%