Fast image recognition of transmission tower based on big data

Protection and Control of Modern Power Systems

Table 5 Results of tree barrier modeling

No.	Voltage level	Line span number	Line span (m)	Defect classification	Horizontal distance (m)	Vertical distance (m)
1	110 kV	1–2	267	General defect	6.545	10.203
2	110 kV	5–6	240	Emergency defect	1.931	4.052
3	110 kV	9–10	285	General defect	7.919	11.021
4	110 kV	2–3	243	General defect	9.568	9.056
5	110 kV	8–9	340	General defect	6.669	10.421
6	110 kV	11–12	365	Emergency defect	1.448	2.441
7	220 kV	16–17	486	General defect	8.448	9.230
8	220 kV	14–15	404	General defect	7.107	10.194
9	220 kV	20–21	366	General defect	8.946	10.590
10	220 kV	11–12	333	General defect	8.920	10.709
11	220 kV	18–19	400	concern	14.232	14.046
12	220 kV	2–3	382	concern	14.902	15.790
13	500 kV	6–7	406	Major defects	7.703	9.532
14	500 kV	24–25	420	concern	16.013	23.089
15	500 kV	17–18	453	concern	16.069	20.894
16	500 kV	2–3	471	General defect	13.704	17.776
17	500 kV	8–9	354	concern	16.565	20.019
18	500 kV	1–2	355	Emergency defect	5.471	13.726
19	500 kV	27–28	384	General defect	13.755	15.726
20	500 kV	4–5	534	concern	17.591	22.331