配电变压器绕组状态在线评估系统研究

针对配电变压器运行管理部门工作日益繁重、无法及时掌握配电变压器的实时运行状态、难以及时发现绕组变形故障等问题,以配电变压器运行参数实时采集为基础,结合了配电变压器短路电抗在线检测算法,设计了配电变压器运行参数实时采集装置及PC监测平台,实现了对配电变压器运行参数的实时采集,同时依据国标中短路电抗注意值,实现了对变压器绕组状态的评估。最后通过实际挂网测试,证明了本系统的可行性。

Research on On-line Winding State Evaluation System of Distribution Transformer

Due to the increasingly heavy work of the distribution transformer’s operation and management department,it is difficult to monitor the real-time operating state of distribution transformer and find out the winding deformation faults in time.To solve the problems mentioned above,the real-time acquisition device and PC monitoring platform of the distribution transformer’s operating parameters were designed,combined with the on-line detection algorithm of short-circuit reactance of distribution transformer,based on the real-time acquisition of distribution transformer’s operating parameters.Then on the basis of the realization of the real-time acquisition of distribution transformer’s operating parameters and according to the calculation method of the short-circuit reactance’s attention value in the national standard,the evaluation with the winding state of the transformer was realized.Finally,the feasibility of the system was proved through actual test.