Customization: | Available |
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Certification: | ISO9001 |
Shell Material: | Steel Plate |
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Summary:
JN17-12/40 indoor AC high voltage earthing switch is an advanced level product with high-tech parameters performance.After comprehensive evaluation,it conforms to GB1985 and IEC129 standard ,applies to power system of 3-12kV and three-phase AC 50Hz.
It owns shortcircuit making capacity to protect other electric equipment not being damaged.Can beused with various high voltage switchgear,also play a protective role in the highvoltage electrical equipment overhaul.
Ambient condition:
1.Altitude: ≤ 1000m
2.Ambient temperature: -10 DEG to 40 DEG
3.Earthquake intensity: no more than 8 degree
4.Pollution: II
5.Relative humidity: Daily average less than 95%.Monthly average less than 90%.
Paramters
Item |
Unit |
Data |
||
Rated voltage |
kV |
12 |
||
Rated short-time withstand current |
kA |
40 |
||
Rated short-circuit duration |
s |
4 |
||
Rated short-circuit making current |
kA |
100 |
||
Rated peak withstand current |
kA |
100 |
||
Rated insulation level |
PF withstand voltage (1 min) |
kV |
Phase to earthPhase to phase |
42 |
Lightning impulse withstand voltage |
75 |
|||
Mechanical endurance |
Time |
2000 |