Interruptores de Carga SF6
SPG-24 Outdoor SF6 Load Break Switch (24kV)
The SPG-24 is a 24kV outdoor SF6 load break switch for 20kV distribution systems. Enhanced insulation levels with 125/145kV lightning impulse withstand. Same proven SF6 pressure-assisted arc blowing technology in 304 stainless steel housing. Available in 630A and 1250A rated current variants. Features all safety interlocks (low pressure, manual, explosion-proof relief). Silicone rubber/epoxy resin insulation with APG vacuum casting. Every unit X-ray inspected. 5,000 mechanical operations life.
Caracteristicas Principales
- 24kV rated voltage — for 20kV distribution systems
- Enhanced insulation: 125/145kV lightning impulse withstand
- Available in 630A and 1250A rated current variants
- SF6 pressure-assisted arc blowing — proven reliability
- 304 stainless steel molded housing
- Low gas pressure interlock: 0.03-0.04 MPa with visual alarm
- Manual interlock + high pressure explosion-proof relief
- Silicone rubber / epoxy resin insulation (APG vacuum cast)
- Triangle spring mechanism sealed in SF6 — maintenance-free
- Every unit X-ray inspected
- Mechanical life: 5,000 operations
- Compatible with FTU for 20kV distribution automation
Especificaciones Tecnicas
| Rated Voltage | 24 kV |
| Rated Frequency | 50/60 Hz |
| Rated Current | 630 / 1250 A |
| Rated Breaking Load Current | 630 / 1250 A |
| Rated Closed Breaking Current | 630 / 1250 A |
| Rated Short-Circuit Making Current (peak) | 50 / 63 kA |
| Rated Short-Time Withstand Current | 20kA/4s, 25kA/4s |
| Rated Cable-Charging Breaking Current | 25 A |
| Rated Earth Fault Breaking Current | 48 A |
| Lightning Impulse Withstand (phase-phase/earth) | 125 kV |
| Lightning Impulse Withstand (across isolating distance) | 145 kV |
| Power Frequency Withstand 1min (phase-phase/earth) | 65 kV |
| Power Frequency Withstand 1min (across isolating distance) | 79 kV |
| Rain Test Withstand Voltage | 50 kV |
| Rated Working Pressure | 0.20 MPa |
| Low Pressure Interlock | 0.03-0.04 MPa |
| High Pressure Explosion Relief | 0.4-0.6 MPa |
| Annual Leak Rate | ≤0.5% |
| SF6 Water Content | ≤150 PPM |
| Circuit Resistance (per phase) | ≤150 μΩ |
| Contact Distance | 41±3 mm |
| Contact Overtravel | 22±2 mm |
| Opening Speed | 1.9±0.2 m/s |
| Closing Speed | 1.9±0.2 m/s |
| Contact Closing Bounce Time | ≤3 ms |
| Phase-to-Phase Distance | 250±3 mm |
| Three-Phase Synchronization | ≤3 ms |
| Closing Time | <10 s |
| Opening Time | <10 s |
| Energy Storage Motor Power | 40 W |
| Mechanical Life | 5,000 operations |
| Operation Voltage | DC220V / DC24V / AC220V |
| Weight (Manual / Automatic) | 115 kg / 135 kg |
| Temperature Range | -25°C to +40°C |
Aplicaciones
Urban distribution network sectionalizing (20kV)Tie switch applications for 20kV systemsRural distribution system control switchingRing network fault detection, isolation, and alarmDistribution automation with FTU
Cumplimiento de Normas
IEC 62271-103GB/T 10963
Respuesta en 12hCertificado ISO / CE / CCCOEM Disponible
Preguntas Frecuentes
Cual es la tension nominal del SPG-24 Outdoor SF6 Load Break Switch (24kV)?
El SPG-24 Outdoor SF6 Load Break Switch (24kV) tiene una tension nominal de 24 kV. Consulte la tabla de especificaciones tecnicas para las clasificaciones electricas completas.
Cual es el plazo de entrega para el SPG-24 Outdoor SF6 Load Break Switch (24kV)?
El plazo de entrega estandar para el SPG-24 Outdoor SF6 Load Break Switch (24kV) es de aproximadamente 30 dias. Cantidades mayores o configuraciones personalizadas pueden requerir tiempo de produccion adicional.
Se puede personalizar el SPG-24 Outdoor SF6 Load Break Switch (24kV) para proyectos OEM?
Si, NAIJI Electric ofrece fabricacion OEM y personalizada para el SPG-24 Outdoor SF6 Load Break Switch (24kV). Podemos ajustar especificaciones, marca y configuraciones segun requisitos especificos del proyecto.
Que normas cumple el SPG-24 Outdoor SF6 Load Break Switch (24kV)?
El SPG-24 Outdoor SF6 Load Break Switch (24kV) esta disenado y probado de acuerdo con IEC 62271-103, GB/T 10963. Todos los productos se someten a pruebas rigurosas de fabrica antes del envio.
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