Method for estimating insulation life of XLPE cable based on double-ended balance factor
A technology of balance factor and cable insulation, applied in the direction of measuring electricity, only measuring current, measuring electrical variables, etc., can solve the problems of accelerating cable insulation aging, threatening the safe operation of the power grid, and cable failure, so as to reduce the frequency and time of power outages and enrich Effect of test parameters and data, reliable work
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[0049] The present invention will be further explained below in conjunction with the flowchart:
[0050] according to figure 1 For the wiring diagram of the cable leakage current test platform, the specific calculation steps of the present invention are as follows:
[0051] Step 1: Build a cable leakage current test platform
[0052] The test platform includes: high-frequency voltage source 1, port 1 of high-frequency voltage source 1, high-voltage test wire 3, test cable 4, terminal 5 of test cable 4, high-frequency current transformer 1, No. 1, ground wire 7, No. 2 high-frequency current transformer 8, No. 2 ground wire 9, No. 1 signal transmission line 10, data collector 11, No. 2 signal transmission line 12, No. 3 signal transmission line 13, host computer 14, high-frequency voltage source 1 No. 2 port 15, No. 3 ground wire 16;
[0053] Connect terminal 5 of test cable 4 to port 1 of high-frequency voltage source 1 through high-voltage test line 3;
[0054] Pass the No. 1 ground ...
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