JN15-24 Indoor High Voltage Grounding Switch
Short Description:
summary:The JN15-24 indoor high-voltage grounding switch is a newly developed innovative grounding switch by our company. This product features innovative design, simple and compact structure, and reliable technical performance, and complies with GB1985-2004 AC High Voltage Disconnectors and Groundi …
Product details
summary:
The JN15-24 indoor high-voltage grounding switch is a newly developed innovative grounding switch by our company. This product features innovative design, simple and compact structure, and reliable technical performance, and complies with GB1985-2004 "AC High Voltage Disconnectors and Grounding Switches" and IEC62271-102; The requirements of 2002 apply to indoor 24kV three-phase AC power systems operating at 50 (60) Hz; It has short-circuit closing capability to protect other electrical equipment inside the switchgear from damage, and can be used in conjunction with various high-voltage switchgear as grounding protection during maintenance of high-voltage electrical equipment.
Normal usage conditions:
◇ Altitude not exceeding 1000m;
Surrounding air temperature: upper limit+40 ℃, lower limit -25 ℃;
The daily average relative humidity should not exceed 95%, and the monthly average should not exceed 90%;
The seismic intensity shall not exceed 8 degrees;
Pollution level: II.
Main technical parameters：
| Serial Number | project | unit | parameter | |
1 | Rated current | kA | 12 | |
2 | Rated short-time withstand current | kA | 31.5 | |
3 | Rated short-circuit duration | S | 4 | |
4 | Rated short-circuit closing current | kA | 80 | |
5 | Rated peak withstand current | kA | 80 | |
6 | Rated insulation level | 1minPower frequency withstand voltage | kV | 42 |
| Lightning impulse withstand voltage | 75 | |||
| 7 | mechanical life | 次 | 2000 | |
Appearance and installation dimensions：
