Page 25 - YINGMING POWER(HIGH VOLTAGE)

ZW10- Ⅱ -12G
OUTDOOR INTELLIGENT HIGH VOLTAGE DUAL
POWER SUPPLY SWITCHING DEVICE YINGMING POWER
Switch rated parameters

project Unit Parameter
Rated voltage kV 12
Rated current A 630
Rated short-circuit load breaking current kA 20
Rated short-circuit making current (peak value) kA 50
Rated peak withstand current kA 50
Rated short time lmin withstand current kA 20
Power frequency withstand voltage (dry type) 42
Rated insulation level kV
Lightning impulse withstand voltage (peak value) 75
Rated operating sequence Points-0.3s-he points-180S-he points
Institutional life Times 10000
Rated short-circuit breaking current switching times Times 30
Operating machinery rated closing voltage V ≈ 220
Operating machinery rated opening voltage V ≈ 220
Contact opening mm 9±1
Overtravel mm 3 ±0.5
Different phases of three-phase opening and closing ms ≤2
Bounce time of contact closing ms ≤3
Average opening speed s 1.2 ±0.2
Average closing speed s 0.8 ±0.2
At maximum operating voltage 30 〜 50
Opening time ms
At the lowest operating voltage 30 〜 50
Closing time ms 40 〜 60
Main loop resistance (body) of each phase (with isolation) μΩ ≤ 150 ≤ 200
Dynamic and static contacts allow the cumulative thickness of wear mm 3

Shape and installation size (mm)

Ő ˜

18