JN15 Indoor High Voltage AC High Speed Ground Switch 630A
JN15 indoor high voltage AC electrical earthing switch for switchgear grounding switch
Intorduction:
The performance of JN15-12 indoor high-voltage grounding switch meets the requirements of GB1985-85 "AC high-voltage partition switch and grounding switch" and IEC129. It is suitable for AC 50Hz power system of 12 kV and below. It can be used with various models of high voltage. The switchgear is used together for grounding protection.
Advanced design and reliable technical performance;
The structure is simple, and the installation and debugging are convenient;
With fast separation and combining capabilities.
Environmental conditions:
1. The altitude does not exceed 1000m;
2. Ambient air temperature: upper limit +40 ℃, lower limit -10℃;
3. Allow storage and transportation at 30 ℃;
4. The seismic intensity does not exceed 8 degrees;
5. No flammable, explosive, severe dust, chemical corrosion and severe vibration.
The main technical parameters:
| name | unit | Numerical value | ||
| Rated voltage | KV | 12 | ||
| Rated short-time withstand current | KV | 31.5 | ||
| Rated short circuit duration | S | 4 | ||
| Rated short circuit closing current | KA | 80 | ||
| Rated peak withstand current | KA | 80 | ||
| Center distance between poles | mm | 150,210,275 | ||
|
Rated insulation level |
1min power frequency withstand voltage |
KV |
Ground, phase |
42/48 75/85 |
| Lightning impulse withstand voltage | ||||
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