Field Error Detection of GIS Type Current Transformer Based on Different Frequency Small Signal Test Method
Because the traditional error detection method of gas insulated metal enclosed switchgear(GIS)current transformer is mainly based on large signal test,it is easy to be affected by noise and power interference,and the detection accuracy is low.The field error detection of GIS type current transformer based on different frequency small signal test method is proposed.Enter the different frequency small signal to the GIS current transformer,collect the output signal,compare the frequency spectrum of the input and output signal,so as to calculate the error of the GIS current transformer,and complete the field error detection of the GIS current transformer.The field test results show that the field error detection results of the GIS current transformer under the design method meet the requirements of the equipment accuracy,and confirm its feasibility.
different frequency small signal test methodGIS current transformertransformer errorfield error detection
NETL
NSTL
万方数据
