| Customization: | Available |
|---|---|
| Application: | High-voltage, Indoor Vacuum Circuit Breaker |
| Material: | Epoxy Resin + Embedded Copper Parts |
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The 24kV Top Outlet Embedded Pole is a key insulating and conducting component designed for use in 24kV indoor vacuum circuit breakers (VCB). This unit integrates the vacuum interrupter, conductive parts, and insulation into a single epoxy resin-molded structure using APG (Automatic Pressure Gelation) technology.
The top outlet design optimizes current path layout, improves electrical clearance, and simplifies installation in compact switchgear systems. It provides excellent electrical insulation, mechanical strength, and resistance to arc, heat, and environmental stress.
| Rated Voltage | 24kV |
| Rated Current | 1250A |
| Rated Frequency | 50Hz |
| Rated Short-Circuit Breaking Current | 40kA |
| Rated Short-Circuit Breaking Current Breaking Operations | 30 times |
| Rated Short-Circuit Making Current | 100kA |
| Rated Peak Withstand Current | 100kA |
| Rated Short-Time Withstand Current (4s) | 40kA |
| Rated Single Capacitor Bank Breaking Current | 630A |
| Rated Back-to-Back Capacitor Bank Breaking Current | 400A |
| Short-Time (1min) Power Frequency Withstand Voltage | 48kV |
| Lightning Impulse Withstand Voltage (Peak) | 75kV |
| Circuit Resistance under Rated Contact Pressure | ≤25~30Ω |
| Mechanical Life | 10,000 times |
| Contact Self-closing Force | 120±60N |
| Contact Reaction Force at Rated Opening Distance | 200±50N |
| Permissible Contact Wear Thickness | 3mm |
| Storage Period | 20 years |
| Partial Discharge | ≤5pC |
| Rated Operating Sequence | O-0.3s-CO-180s-CO |
| Contact opening distance | 9±1mm |
| Rated overtravel | 3.5±0.5mm |
| Average opening speed | 1.1±0.2m/s |
| Average closing speed | 0.8±0.2m/s |
| Rated contact pressure | 2500±200N,3200±200N |
| Contact closing bounce time | ≤2ms |
| Contact opening and closing phase difference | ≤1ms |
| Opening contact rebound amplitude | ≤2mm |
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