12kV High Voltage Switchgear Electronic Earthing Switch
This electronic earthing switch is designed for use in 12kV high voltage switchgear. It provides a reliable and efficient grounding mechanism, ensuring safety and protection within electrical systems.
Technical Specifications
Product Overview
High-Performance Earthing Solution
The JN15A-12/31.5 indoor high voltage earthing switch is engineered for reliability in power transmission and distribution systems. Featuring silver-plated electrolytic copper contacts, it ensures reduced ohmic resistance and minimal metal wear-off over its operational life. The design is robust, specifically built to withstand significant thermal and mechanical stresses during short-circuit conditions.
Electrical Ratings
- Rated Voltage
- 12 kV
- Rated Short-Time Withstand Current
- 31.5 kA
- Rated Short-Circuit Duration
- 4 s
- Rated Short-Circuit Making Current
- 80 kA
- Rated Peak Withstand Current
- 80 kA
Insulation Performance
- PF Withstand Voltage (Phase to Earth)
- 42 kV
- PF Withstand Voltage (Phase to Phase)
- 75 kV
Mechanical Specifications
- Mechanical Endurance
- 2000 cycles
Operational Environment
Operational Conditions
| Parameter | Limit |
|---|---|
| Altitude | ≤1000m |
| Ambient Temperature | -10°C to +40°C |
| Earthquake Intensity | ≤8 degrees |
| Pollution Level | II |
| Relative Humidity (Daily Avg) | ≤95% |
| Relative Humidity (Monthly Avg) | ≤90% |
Key Features
- Material Composition
- Resin InsulatorsSilver-plated Electrolytic Copper (99.9%)
