JN15-24/31.5 Type indoor high voltage grounding switch
Technical specification
|
No. |
Item |
Units |
Parameters |
||
|
1 |
Rated current |
kA |
12 |
||
|
2 |
Rated short-time withstand current |
kA |
31.5 |
||
|
3 |
Rated circuit-time making current |
kA |
80 |
||
|
4 |
Rated peak withstand current |
kA |
80 |
||
|
5 |
Rated short-circuit duration |
S |
4 |
||
|
6 |
Rated insulation level |
1min.PF withstand voltage |
kV |
To earth, Phase to phase |
65 |
|
Lighting impulse withstand voltage |
125 |
||||
|
7 |
Mechanical life |
Times |
2000 |
||
Product Model
Dimension
Product Functions
◆Short-Circuit Making: Capable of making onto short-circuit currents up to 31.5kA, protecting other electrical equipment during fault conditions.
◆Safe Earthing Protection: Provides reliable grounding for high voltage circuits during maintenance and overhaul of electrical apparatus.
◆Equipment Protection: Safeguards switchgear components by providing a controlled path for fault currents during earthing operations.
◆Visible Grounding Position: Clear mechanical indication confirms proper earthing status for maintenance crew safety.
◆Fault Current Withstanding: Engineered to withstand rated short-circuit conditions without damage, ensuring long-term reliability.
Applicable Environment
◇Rated System: Suitable for 24kV and below, 50/60Hz AC indoor power systems.
◇Temperature Range: Reliable operation in ambient temperatures from -25℃ to +40℃.
◇Installation Altitude: Designed for elevations below 1000 meters.
◇Humidity Tolerance: Withstands daily average humidity ≤95% and monthly average ≤90%.
◇Pollution Level: Certified for contamination grade II environments.
Product Highlights
◆High Short-Circuit Making Capacity: Rated at 31.5kA short-circuit making capability, providing robust protection for valuable switchgear equipment during fault conditions.
◆Simple & Compact Construction: Streamlined design with fewer components reduces maintenance requirements while maintaining reliable technical performance and easy installation.
◆Extended Voltage Rating: Designed for 24kV systems, offering higher voltage capability compared to standard 12kV grounding switches for expanded application range in medium voltage distribution.
◆Reliable Technical Performance: Engineered for consistent operation under various conditions with proven mechanical and electrical characteristics, ensuring long service life and minimal downtime.