Neutral point grounding reactor with variable impedance

The utility model provides a neutral point grounding reactor with variable impedance, which comprises a neutral point grounding reactor (6), and a project temporary transition period impedance tap (1) and a permanent operation period impedance tap (2) are led out from an electrical loop of the neutral point grounding reactor (6). The engineering temporary transition period impedance tap (1) and the permanent operation period impedance tap (2) have different impedance values, and the engineering temporary transition period impedance tap (1) and the permanent operation period impedance tap (2) can be selectively connected with a grounding grid according to needs. The neutral point grounding reactor adapts to the requirement of stage construction of a power supply power station transmission project, does not need to be provided with two neutral point grounding reactors with different impedances, and is simple in structure and convenient to operate. 本实用新型提供了一种可变阻抗的中性点接地电抗器，包括中性点接地电抗器(6)，中性点接地电抗器(6)的电气回路中引出工程临时过渡期