Parameter	Unit	Data
Rated voltage	kV	31.5
Rated current	A	630
Rated frequency	Hz	50
Rated power frequency withstand voltage(1min)	kV	85
Lightning impulse withstand voltage	kV	175
Rated short circuit breaking current	kA	12.5
Rated short circuit making current	kA	31.5
Switching operations of rated short circuit switching current	Time	30
Rated switching current of single capacitor bank	A
Rated short time withstand current	kA	12.5
Rated withstand current(peak)	kA	31.5
Rated duration of short circuit	s	2
Mechanical endurance	Time	150000
Switching operations of rated current	Time	150000
Closing force due to bellow and atmosphere	N	160±40
Force required to hold contacts open at full stroke	N	260±50
Time-limited circuit resistance at rated compressive force	μΩ	≤45
Shelf life	Years	20
Contact limit erosion	mm	3
Weight of moving parts	kg	≤1.5

▋ Mechanical data required for the matcded vacuum switchgear

Parameter	Unit	Data
Clerance between open conatcts	mm	16±2
Contact connection stroke	mm	3.5±0.5
Average opening speed	m/s	1.3±0.10
Average closing speed	m/s	0.5±0.15
Rated compressive force of contact	N	1500±150
Contact bouncing duration at closing operation	ms	≤2
Out of simultaneity of contact closing and opening	ms	≤1

▋ Dimension