12KV earthing switch
Summary:
JN15A-12/31.5 indoor AC high voltage earthing switch is an advanced level product with high-tech parameters performance.After comprehensive
evaluation,it conforms to GB1985 and IEC62271 standard ,applies to power
system of 3-12kV and three-phase AC 50Hz.It owns short-circuit making
capacity to protect other electric equipment not being damaged.Can be used
with various high voltage switchgear,also play a protective role in the highvoltage
electrical equipment overhaul.
Ambient condition:
1.Altitude: less than 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%.
Related parameter:
| Item | Unit | Data | ||
| Rated voltage | KV | 12 | ||
| Rated short-time withstand current | KA | 31.5 | ||
| Rated short-circuit duration | S | 4 | ||
| Rated short-circuit current | KA | 80 | ||
| Rated peak withstand current | KA | 80 | ||
| Rated insulation level | Rated short-time power frequency withstand voltage | KV | Relative phase | 42 |
| Rated lightning impulse withstand voltage | KV | 75 | ||
| Mechanical life | Secondary | 2000 | ||
Product Model:
| Product Model | A | B | C |
| JN15A-12/31.5-150 | 150 | 396 | 535 |
| JN15A-12/31.5-165 | 165 | 426 | 565 |
| JN15A-12/31.5-210 | 210 | 516 | 655 |
| JN15A-12/31.5-230 | 230 | 556 | 710 |
| JN15A-12/31.5-275 | 275 | 646 | 810 |
