Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
FZW28-12 Outdoor Vacuum Load Switch: 12kV boundary protection, zero-sequence/short-circuit detection, automatic distribution network, aviation socket controller, 2000m altitude, -40°C to +40°C, frequent operations.
Advanced FZW28-12 Boundary Vacuum Load Switch Series: Premium FZW28-12 outdoor AC high-voltage boundary vacuum load switch designed for rated voltage 12kV, rated frequency 50Hz outdoor three-phase AC power distribution systems, opening/closing load currents and closing short-circuit currents, comprising FZW28-12 vacuum load switch and controller electrically connected through aviation sockets and outdoor sealed control cables, reliably determining milliamp zero-sequence current and phase-to-phase short-circuit current inside/outside detection range, suitable for power distribution systems with different neutral point grounding methods (ungrounded, arc suppression coil grounded, low resistance grounded).
Automatic Distribution and Frequent Operations Ready: FZW28-12 incorporates boundary protection technology for substations, industrial/mining enterprises, urban/rural power grid protection, automatic distribution networks and frequent operation applications, operating at -40°C to +40°C, altitudes ≤2000m, Level IV pollution (31mm/kV creepage distance), ≤10mm ice thickness, earthquake intensity ≤8, providing reliable vacuum load switching solution with zero-sequence detection for automatic distribution networks.
| FZW28-12 Outdoor Vacuum Load Switch Specifications | FZW28-12 | Unit |
|---|---|---|
| Model Number | FZW28-12 | – |
| Brand | Bepto Insulation Systems | – |
| Product Type | Outdoor AC High-Voltage Boundary Vacuum Load Switch | – |
| Core Technology | Boundary Protection + Zero-Sequence Detection + Automatic Distribution | – |
| Rated Voltage | 12 | kV |
| Rated Frequency | 50 | Hz |
| System Type | Outdoor Three-Phase AC Power Distribution Systems | – |
| Primary Function | Opening/Closing Load Currents + Closing Short-Circuit Currents | – |
| Components | FZW28-12 Vacuum Load Switch + Controller | – |
| Electrical Connection | Aviation Sockets + Outdoor Sealed Control Cables | – |
| Detection Capability | Milliamp Zero-Sequence Current + Phase-to-Phase Short-Circuit Current (Inside/Outside Detection Range) | – |
| Neutral Point Grounding Compatibility | Ungrounded + Arc Suppression Coil Grounded + Low Resistance Grounded | – |
| Ambient Temperature | -40 to +40 | °C |
| Relative Air Humidity (Daily Average) | ≤95 | % |
| Relative Air Humidity (Monthly Average) | ≤90 | % |
| Altitude | ≤2000 | m |
| Wind Pressure | ≤700 (Wind Speed 34m/s) | Pa |
| Pollution Level | Level IV (Creepage Distance 31mm/kV) | – |
| Ice Thickness | ≤10 | mm |
| Earthquake Intensity | ≤8 | – |
| Installation Site Requirements | No Fire Risk, No Explosion Risk, No Serious Pollution, No Chemical Corrosion, No Severe Vibration | – |
| Application | Substations, Industrial/Mining Enterprises, Urban/Rural Power Grid Protection, Automatic Distribution Networks, Frequent Operation Places | – |
| Key Advantages | Boundary Protection, Zero-Sequence Detection, Milliamp Detection, Aviation Socket Connection, Automatic Distribution, Frequent Operations, Multiple Neutral Point Grounding Methods | – |
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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Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
