38kV Outdoor Automatic Recloser
The 38kV outdoor automatic recloser serves 33kV three-phase overhead distribution lines (50/60Hz), compliant with IEC 62271-111 and IEEE C37.60. The highest voltage class in the NAIJI recloser series, completing the 15.5kV / 27kV / 38kV sequence for global 11kV, 24kV, and 33kV grid coverage. Available in three-phase ganged or independent mechanism configurations. Significantly upgraded insulation distances, creepage distances, and vacuum interrupter sizing. 304/316 stainless steel enclosure with outdoor corrosion protection.
Caracteristiques Principales
- 38kV rated voltage, 630A rated current
- Power-frequency withstand: 70kV; Lightning impulse: 170kV
- 10,000 mechanical operations life
- Closing time: ≤60ms; Opening time: ≤45ms
- Partial discharge: ≤20pC at 1.1Ur/√3
- Built-in CT: 600A/1A, accuracy class 0.5S
- Highest voltage class — completes 15.5/27/38kV series
- Significantly upgraded insulation and creepage distances
- 304/316 stainless steel enclosure
- IEC 62271-111 & IEEE C37.60 compliant
Specifications Techniques
| Rated Voltage | 38kV |
| Rated Current | 630A |
| Power-Frequency Withstand (Phase/Earth & Across Gap) | 70kV |
| Lightning Impulse Withstand (Peak) | 170kV |
| Mechanical Life | 10,000 operations |
| Contact Gap | 15±1mm |
| Closing Time | ≤60ms |
| Opening Time | ≤45ms |
| Partial Discharge | ≤20pC |
| Built-in CT Ratio | 600A/1A |
| CT Accuracy Class | 0.5S (5P10) |
| Operating Temperature | -40°C to +45°C |
| Frequency | 50/60Hz |
| Enclosure Material | 304/316 Stainless Steel |
| Standards | IEC 62271-111, IEEE C37.60 |
Applications
Conformite aux Normes
Produits Associes
15.5kV Outdoor Automatic Recloser
The 15.5kV outdoor automatic recloser serves 11kV three-phase AC overhead distribution lines (50/60Hz). Features solid-insulated vacuum interrupter poles with silicone-composite epoxy resin encapsulation, monostable permanent-magnet actuator with simple construction and long mechanical life. Stainless steel enclosure with outdoor powder-coat corrosion protection. IP65/IP67 rated, suitable for altitudes up to 2,000m, pollution level IV.
27kV Outdoor Automatic Recloser
The 27kV outdoor automatic recloser serves 24kV three-phase overhead distribution lines (50/60Hz), compliant with IEC 62271-111 and benchmarked against IEEE C37.60. Widely adopted in South America, North America, East/South Africa, Southeast Asia, and Oceania where 24kV grids prevail. Available in three-phase ganged single-mechanism or three-phase independent mechanism configurations — independent mechanism is preferred for export projects. Upgraded insulation distances and vacuum interrupter sizing compared to the 15.5kV model. 304/316 stainless steel enclosure with outdoor powder-coat protection.
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