Motorized Earthing Switch JN22B 40.5kV Ground Switch With 31.5kA Short Circuit Current
Price:
$100-$300
MOQ:
1 pc
Delivery Time:
8 days
Brand:
MacweyTEK
Product Description
JN22B 40.5kV Motorized Earthing Switch with 31.5kA Short-Circuit Current and 300/350/400mm Phase-to-Phase Distance for High and Medium Voltage Switchgear
Indoor High and Medium Voltage Switchgear Earthing Switch
The JN22B-40.5/31.5 indoor high-voltage earthing switch is a newly developed product that meets GB1985-2004 and IEC62271-102:2002 standards. Designed for three-phase power systems with AC 50Hz and rated voltage 40.5kV, this switch serves as a ground protection device during maintenance of high-voltage electrical equipment.
This earthing switch features a simple, compact structure with excellent performance and requires minimal operating angle. It is compatible with KYN61-40.5 high-voltage switchgear and other similar equipment, with connection and transmission parts interchangeable with JN15-12 series.
Service Conditions
- Maximum altitude: 1,000m
- Ambient temperature range: -25℃ to +40℃
- Seismic intensity: ≤Ms8
- Installation site must be free from fire hazards, explosive danger, heavy dust, chemical corrosion, or severe vibration
Technical Specifications
| Item | Unit | Data |
|---|---|---|
| Rated voltage | KV | 40.5 |
| Rated short-time withstand current (4s) | kA | 31.5 |
| Rated short-circuit making current | kA | 80 |
| Rated peak withstand current | kA | 80 |
| Phase-to-phase distance | mm | 300, 350, 400 |
| Rated short-time power frequency withstand voltage (1min) | 95 kV (Phase-to-ground and phase-to-phase) | |
| Rated lightning impulse withstand voltage | 185 kV | |
Product Dimensions
| Product model | E | L | D |
|---|---|---|---|
| JN22B-40.5/31.5-300 | 300 | 1100 | 696 |
| JN22B-40.5/31.5-350 | 350 | 1150 | 796 |
| JN22B-40.5/31.5-400 | 400 | 1200 | 896 |
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Company
Ningbo Macwey Industrial Technology Co.,Ltd
Location
No.218, Weier Road, Chongshou Industrial Park, Cixi City (Ningbo), China
Contact Person
Alec Sung