Differences in Methods and Simulation Research for Lightning Impulse Testing of Series Reactors

YANG Jianli; YUAN Shushu; TAO Lei

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Differences in Methods and Simulation Research for Lightning Impulse Testing of Series Reactors

POWER CAPACITOR & REACTIVE POWER COMPENSATION

Differences in Methods and Simulation Research for Lightning Impulse Testing of Series Reactors
串联电抗器雷电冲击试验的方法差异与仿真研究
XuJi Transformer Co., Ltd., Xuchang Henan 461000
(2026)
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YANG Jianli, YUAN Shushu, TAO Lei. Differences in Methods and Simulation Research for Lightning Impulse Testing of Series Reactors[J/OL]. Power Capacitor & Reactive Power Compensation, 2026.
DOI：

YANG Jianli, YUAN Shushu, TAO Lei. Differences in Methods and Simulation Research for Lightning Impulse Testing of Series Reactors[J/OL]. Power Capacitor & Reactive Power Compensation, 2026. DOI：

摘要

串联电抗器的电气绝缘性能是其安全运行的重要保障，电抗器雷电冲击试验是检验该性能的重要手段，目前我国实行的标准JB/T5346-2014及 DL/T462-2025的电抗器相间雷电冲击试验方法有所不同，对电抗器造成的绝缘损害也有所差异。对此，论文基于上述两种标准运用试验和仿真的方法对电抗器相间雷电冲击试验进行研究。试验和仿真结果显示，标准JB/T5346-2014中干式空心和铁心电抗器35kV感应峰值电压分别为312.09kV和270.35kV超出标准值56%和35%；最大场强值分别为1.75kV/mm和1.64kV/mm；标准DL/T462-2025中感应峰值电压与标准值一致，最大场强值均为1.19kV/mm。标准JB/T5346-2014中电抗器雷电冲击试验方法导致更高的感应过电压和局部场强，对绝缘设计提出更高裕度要求。

Abstract

The electrical insulation performance of series reactors is a crucial guarantee for their safe operation

and lightning impulse testing serves as a significant means to evaluate this performance. Currently

the lightning impulse testing methods for reactors in China's standards JB/T5346-2014 and DL/T462-2025 differ

leading to varying degrees of insulation damage to the reactors. In response

this paper employs experimental and simulation methods to study the lightning impulse testing of reactor phase-to-phase insulation based on the aforementioned standards. The experimental and simulation results indicate that the induced peak voltages for dry-type air-core and iron-core reactors in standard JB/T5346-2014 are 312.09 kV and 270.35 kV

respectively

exceeding the standard values by 56% and 35%; the maximum field strength values are 1.75 kV/mm and 1.64 kV/mm

respectively. In standard DL/T462-2025

the induced peak voltage aligns with the standard value

and the maximum field strength value remains at 1.19 kV/mm. The lightning impulse testing method for reactors in standard JB/T5346-2014 results in higher induced overvoltages and local field strengths

necessitating higher margin requirements for insulation design.

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