Sizing of surge arresters for 400kV Substation &amp;#x2014; A case study

Annamalai, A.; Gulati, Aruna; Koul, R.

doi:10.1109/icetect.2011.5760117

Cited by 3 publications

(1 citation statement)

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“…A single common formula for different tasks doesn't exist. To determine the energy capability of the surge arresters, as well as to assess the failure probability of a surge arrester when lightning strikes in papers [3,[6][7][8][9] were used current waves that rise and decay linearly. In [10], to determine the voltage at the top of transmission line tower when a direct lightning strike, were also used current waves that rise and decay linearly.…”

Section: Research Of Existing Solutions Of the Problemmentioning

confidence: 99%

Effect of piecewise linear current waveforms on surge arrester residual voltage

Trotsenko

Brzhezitsky

Masluchenko

2017

TAPR

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Section: Research Of Existing Solutions Of the Problemmentioning

confidence: 99%

Effect of piecewise linear current waveforms on surge arrester residual voltage

Trotsenko

Brzhezitsky

Masluchenko

2017

TAPR

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Application of Surge Arrester in Limiting Voltage Stress at DC Breaker

Sen

Mehraeen

Moghbeli

2023

2023 IEEE Texas Power and Energy Conference (TPEC)

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Application of Surge Arrester in Limiting Voltage Stress at Direct Current Breaker

Moghbeli,

Mehraeen,

Sen

2024

Applied Sciences

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Hybrid DC circuit breakers combine mechanical switches with a redirecting current path, typically controlled by power electronic devices, to prevent arcing during switch contact separation. The authors’ past work includes a bipolar hybrid DC circuit breaker that effectively redirects the fault current and returns it to the source. This reduces arcing between the mechanical breaker’s contacts and prevents large voltage overshoots across them. However, the breaker’s performance declines as the upstream line inductance increases, causing overvoltage. This work introduces a modification to the originally proposed hybrid DC breaker to make it suitable to use anywhere along DC grid lines. By using a switch-controlled surge arrester in parallel with the DC breaker, part of the arc energy is dissipated in the surge arrester, preventing an overvoltage across the mechanical switches. Based on the experimental results, the proposed method can effectively interrupt the fault current with minimal arcing and reduce the voltage stress across the mechanical switches. To address practical fault currents, tests at high fault currents (900 A) and voltage levels (500 V) are conducted and compared with simulation models and analytical studies. Furthermore, the application of the breaker for the protection of DC distribution grids is illustrated through simulations, and the procedure for designing the breaker components is explained.

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Sizing of surge arresters for 400kV Substation — A case study

Cited by 3 publications

References 0 publications

Effect of piecewise linear current waveforms on surge arrester residual voltage

Effect of piecewise linear current waveforms on surge arrester residual voltage

Application of Surge Arrester in Limiting Voltage Stress at DC Breaker

Application of Surge Arrester in Limiting Voltage Stress at Direct Current Breaker

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