Study on Seismic Performance of Porcelain Pillar Electrical Equipment Based on Nonlinear Dynamic Theory

Table 1

Model parameters of insulators in a 1000 kV porcelain surge arrester.

Position of insulator unit		1	2	3	4
Parameters	Mass of main body, m (kg)	3413	2488	1938	1816
	Length, L (m)	2.912	2.755	2.855	2.811
	Porcelain modulus, E (Pa) [29]	1.1 × 1011	1.1 × 1011	1.1 × 1011	1.1 × 1011
	Equivalent rigidity, k (N/m)	4.5 × 108	1.7 × 108	8.9 × 107	6.6 × 107
	Inside/outside diameter (mm)	600/720	550/650	450/550	380/450