Long-Term Maintenance Scheduling of Smart Distribution System through a PSO-TS Algorithm

Table 1

Deterioration mechanisms data of 11 kV feeder distribution system.

Deterioration mechanism type	Coefficient	Line	Transformer	Breaker
Type 1 (Tp1)	𝛼1	11.47	11.47	11.47
	𝛽1	0.2651	0.2651	0.2651
	𝛼2	76.262	79.452	75.452
	𝛽2	4.4792	4.4792	4.2792
	ℎ	0.00866	0.00866	0.00866
Type 2 (Tp2)	𝛼1	16.38	15.38	15.38
	𝛽1	0.3759	0.3559	0.3559
	𝛼2	98.045	92.045	87.045
	𝛽2	5.964	5.064	4.4792
	ℎ	0.02673	0.02673	0.02673
Type 3 (Tp3)	𝛼1	25.64	25.64	25.64
	𝛽1	0.2873	0.2873	0.2873
	𝛼2	94.12	90.36	90.294
	𝛽2	5.954	5.028	5.028
	ℎ	0.03512	0.03512	0.03512