330 kV变电站快速转供电的模块化技术研究

Research on Power Supply Scheme of 330 kV Vehicle Mounted Mobile Transformer

随着社会经济的不断发展,电网发展越来越快。330 kV超高压变电站内设备重要性高,布置复杂,停电困难,在事故、基建、技改、抢修和自然灾害等情况下,站内有大量转供电需求,但实施难度较大、周期较长。本文结合模块化设计思路,从方案设计、绝缘特性及快速运输三个方面阐述330 kV变电站快速转供电方案。该方案的实施可迅速替代站内常规变压器,有效降低转供电实施难度,缩减停电时间,减少全寿命周期的投资费用。该方案可为提高电网安全稳定过渡及抵御风险发挥重要作用,具有良好的社会效益和经济效益。

With the continuous development of social economy,the development of power grid is faster and faster.The equipment in 330 kV EHV substation is of high importance,complex layout and difficult power outage.Under the circumstances of accidents,capital construction,technical transformation,emergency repair and natural disasters,there is a large demand for power transfer in the station,but the implementation is difficult and the cycle is long.Combined with the modular design idea,this paper expounds the rapid power transfer technology of 330 kV substation from three aspects:electrical design,insulation characteristics and rapid transportation.The implementation of this technology can quickly replace the conventional transformer in the station,effectively reduce the difficulty of switching power supply,reduce the outage time and reduce the investment cost in the whole life cycle.This technology can play an important role in improving the safe and stable transition of power grid and resisting risks,and has good social and economic benefits.