变压器增设限时速切保护的探索

Exploration and Need of Transformer Add to Tine-limit Quick-acting Switching off Protection

论述现行主变压器的后备保护以及存在的不足 ,说明了增设限时电流主变保护的必要性和可行性 。

Back-up relaying and existing problems of mains tronsformer in operation are described. Necessity and feasibility of addition time-linit current mains transformer protection are given a description. The principles of transformer time-limit protection equipment are introduced in this paper.