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JN22-40.5/31.5 Indoor HV Earthing Switch 35-40.5kV 31.5kA: 80kA making current, 95kV power frequency withstand voltage, 185kV lightning impulse, KYN-40.5 switchgear compatible, advanced design, 4s withstand time, 2000 times life, GB1985-2004 IEC129 compliant, three-phase AC 50Hz.
Advanced JN22-40.5/31.5 Series Indoor HV Earthing Switch: Researched and developed by XI’AN HV Electric research organization with advanced design and steady performance, simple structures, simple mounting and adjustment, suitable for electric power system with 40.5kV, three-phase, AC 50Hz, as earthing protection can be used in KYN□-40.5 or other kinds of switchgears, rated voltage 35kV with maximum voltage 40.5kV, rated short-time withstand current 31.5kA for 4 seconds, rated short-circuit making current 80kA with rated peak withstand current 80kA, rated insulation level with 1 min power frequency withstand voltage 95kV and lightning impulse withstand voltage 185kV, complied with GB1985-2004 and IEC129 standards.
Superior Performance and KYN Switchgear Compatibility: JN22-40.5/31.5 series features advanced design with steady performance ensuring reliable earthing protection for high voltage electrical equipment overhaul, simple structures enable easy mounting and adjustment, central distance between poles options 300mm/350mm/400mm providing flexible installation configurations, working conditions: altitude ≤1000m, ambient temperature -10°C to +40°C, earthquake intensity ≤8 degrees, applicable in places without corrosive, flammable gas and water, specifically designed for KYN-40.5 switchgear compatibility while supporting various other kinds of switchgears, providing comprehensive earthing protection solution for 35-40.5kV indoor power systems.
| B | H | L |
| 280 | 750 | 1180 |
| 300 | 790 | 1180 |
| 350 | 890 | 1280 |
| 400 | 990 | 1374 |
| JN22-40.5/31.5 Indoor HV Earthing Switch Specifications | Parameter | Unit |
|---|---|---|
| Brand | Bepto Insulation Systems | – |
| Model Number | JN22-40.5/31.5 | – |
| Category | Switchgear & High Voltage Earthing Switch | – |
| Product Type | Indoor HV Earthing Switch (35-40.5kV 31.5kA) with 80kA Making Current, 95kV Power Frequency, 185kV Lightning Impulse for KYN-40.5 Switchgear Application | – |
| Core Technology | Researched and Developed by XI’AN HV Electric Research Organization + Advanced Design and Steady Performance + Simple Structures + Simple Mounting and Adjustment + Suitable for 40.5kV Electric Power System + Three-Phase AC 50Hz + Earthing Protection Application + KYN□-40.5 or Other Kinds of Switchgears Compatible + Protective Role in High Voltage Electrical Equipment Overhaul + GB1985-2004 and IEC129 Standards Compliant + Rated Voltage 35kV + Maximum Voltage 40.5kV + Rated Short-Time Withstand Current 31.5kA + Rated Short-Circuit Withstand Time 4 Seconds + Rated Short-Circuit Making Current 80kA + Rated Peak Withstand Current 80kA + 1 Min Power Frequency Withstand Voltage 95kV + Lightning Impulse Withstand Voltage 185kV + Central Distance Between Poles Options 300/350/400mm + Altitude ≤1000m + Ambient Temperature -10°C to +40°C + Earthquake Intensity ≤8 Degrees + Applicable Without Corrosive Flammable Gas and Water | – |
| Place of Origin | Zhejiang, China | – |
| Product Name | JN22-40.5/31.5 Series 40.5KV Indoor AC High Voltage Earthing Switch | – |
| Type | Earthing Switch | – |
| Application | High Voltage Switchgear | – |
| Rated Voltage | 35 | kV |
| Maximum Voltage | 40.5 | kV |
| Max. Voltage | 40.5 | kV |
| Rated Short-Time Withstand Current | 31.5 | kA |
| Rated Short-Circuit Duration (Withstand Time) | 4 | s |
| Rated Short-Circuit Making Current | 80 | kA |
| Max. Current | 80 | kA |
| Rated Peak Withstand Current | 80 | kA |
| 1 Min Power Frequency Withstand Voltage | 95 | kV |
| Lightning Impulse Withstand Voltage | 185 | kV |
| Central Distance Between Poles Options | 300 / 350 / 400 | mm |
| Package | Standard Package | – |
| Port | Ningbo or Shanghai | – |
| Installation Type | Indoor | – |
| Current Type | AC (Alternating Current) | – |
| Frequency | 50 | Hz |
| Phase | Three-Phase | – |
| Voltage Range Application | 40.5kV | kV |
| Standards Compliance | GB1985-2004 and IEC129 | – |
| XI’AN HV Electric Research | Yes (Researched and Developed by XI’AN HV Electric Research Organization) | – |
| Advanced Design Steady Performance | Yes (Advanced Design and Steady Performance) | – |
| Simple Structures | Yes (Simple Structures) | – |
| Simple Mounting Adjustment | Yes (Simple Mounting and Adjustment) | – |
| 40.5kV Electric Power System | Yes (Suitable for Electric Power System with 40.5kV) | – |
| Three-Phase AC 50Hz | Yes (Three-Phase, AC 50Hz) | – |
| Earthing Protection | Yes (As Earthing Protection Application) | – |
| KYN□-40.5 Switchgear Compatible | Yes (Can Be Used in KYN□-40.5 Switchgear) | – |
| Other Kinds of Switchgears Compatible | Yes (Or Other Kinds of Switchgears) | – |
| Equipment Overhaul Protection | Yes (Play Protective Role in High Voltage Electrical Equipment Overhaul) | – |
| GB1985-2004 Compliant | Yes (Complied with GB1985-2004 Standard) | – |
| IEC129 Compliant | Yes (Complied with IEC129 Standard) | – |
| 35kV Rated Voltage | Yes (Rated Voltage 35kV) | – |
| 40.5kV Maximum Voltage | Yes (Maximum Voltage 40.5kV) | – |
| 31.5kA Short-Time Withstand | Yes (Rated Short-Time Withstand Current 31.5kA) | – |
| 4 Seconds Withstand Time | Yes (Rated Short-Circuit Withstand Time 4 Seconds) | – |
| 80kA Making Current | Yes (Rated Short-Circuit Making Current 80kA) | – |
| 80kA Peak Withstand | Yes (Rated Peak Withstand Current 80kA) | – |
| 95kV Power Frequency | Yes (1 Min Power Frequency Withstand Voltage 95kV) | – |
| 185kV Lightning Impulse | Yes (Lightning Impulse Withstand Voltage 185kV) | – |
| 300/350/400mm Pole Distance | Yes (Central Distance Between Poles 300mm/350mm/400mm) | – |
Model: JN22-40.5/31.5-□
| Position | Symbol | Meaning |
|---|---|---|
| JN | JN | Indoor Earthing Switch |
| 22 | 22 | Design No. |
| 40.5 | 40.5 | Maximum Voltage (kV) |
| 31.5 | 31.5 | 4S Thermal Stability Current (kA) |
| □ | □ | Central Distance Between Poles (mm) |
| Working Condition | Parameter |
|---|---|
| Altitude | ≤1000m |
| Ambient Temperature | -10°C to +40°C |
| Earthquake Intensity | ≤8 Degrees |
| Installation Site Requirements | Applicable in the Place Without Corrosive, Flammable Gas and Water Place |
| No. | Item | Unit | Data |
|---|---|---|---|
| 1 | Rated Voltage | kV | 35 |
| 2 | Maximum Voltage | kV | 40.5 |
| 3 | Rated Short-Time Withstand Current | kA | 31.5 |
| 4 | Rated Short-Circuit Withstand Time | s | 4 |
| 5 | Rated Short-Circuit Making Current | kA | 80 |
| 6 | Rated Peak Withstand Current | kA | 80 |
| 7 | Rated Insulation Level – 1 Min Power Frequency Withstand Voltage | kV | 95 |
| 7 | Rated Insulation Level – Lightning Impulse Withstand Voltage | kV | 185 |
| 8 | Central Distance Between Poles | mm | 300 / 350 / 400 |
Bepto is a leading Chinese company in electrical insulation, focused on developing advanced solutions for future power systems. We support transmission and distribution safety and growth, with long-term partners including State Grid, ABB, Schneider, Siemens, and GE. Our services reach clients in over 22 countries.
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