Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
ZW20F-12/FZW28-12 Outdoor AC Boundary Vacuum Circuit Breaker: 12kV automatic distribution network, milliamp zero-sequence detection, phase-to-phase short-circuit, neutral point grounding methods, pollution level IV, -40°C to +40°C, frequent operation.
Advanced ZW20F-12/FZW28-12 Boundary Vacuum Circuit Breaker Series: Outdoor AC high-voltage boundary vacuum load switch rated 12kV 50Hz suitable for outdoor three-phase AC power distribution systems, used to flow and close short-circuit current, suitable for substations, industrial and mining enterprises, urban and rural power grid protection, automatic distribution networks and frequent operation places, boundary load switch consists of FZW28-12 vacuum load switch and controller electrically connected through aviation sockets and outdoor sealed control cables, reliably determines milliamp zero-sequence current and phase-to-phase short-circuit current inside and outside detection range, suitable for power distribution systems with different neutral point grounding methods.
Zero-Sequence Detection and Pollution Level IV Features: ZW20F-12/FZW28-12 incorporates milliamp zero-sequence current detection capability enabling precise fault location inside/outside detection range, phase-to-phase short-circuit current detection for comprehensive protection, supports different neutral point grounding methods including neutral point not grounded, neutral point grounded through arc suppression coil, neutral point grounded through low resistance, operates reliably in -40°C to +40°C ambient temperature, relative humidity ≤95% daily/90% monthly, altitude ≤2000m, wind pressure ≤700Pa (34m/s), pollution level IV (31mm/kV electrical specific distance), ice thickness ≤10mm, earthquake intensity ≤8°, providing reliable boundary vacuum circuit breaking solution for 12kV automatic distribution networks with frequent operations.
| ZW20F-12/FZW28-12 Outdoor AC Boundary Vacuum Circuit Breaker Specifications | Parameter | Unit |
|---|---|---|
| Brand | Bepto Insulation Systems | – |
| Model Number | ZW20F-12 / FZW28-12 | – |
| Product Type | Outdoor AC High Voltage Boundary Vacuum Load Switch (12kV Boundary Vacuum Circuit Breaker) with Milliamp Zero-Sequence Detection for Automatic Distribution Networks and Pollution Level IV | – |
| Core Technology | Boundary Vacuum Load Switch + Controller with Aviation Socket Connection + Outdoor Sealed Control Cable + Milliamp Zero-Sequence Current Detection + Phase-to-Phase Short-Circuit Current Detection + Inside/Outside Detection Range + Different Neutral Point Grounding Methods Support + Automatic Distribution Network + Frequent Operation Capability + Pollution Level IV Design + High Ice Thickness Resistance | – |
| Rated Voltage | 12 | kV |
| Rated Frequency | 50 | Hz |
| Phases | Three-Phase | – |
| Installation Type | Outdoor | – |
| Current Type | AC (Alternating Current) | – |
| Boundary Vacuum Load Switch | Yes (FZW28-12 Vacuum Load Switch) | – |
| Controller | Yes (Controller with Aviation Socket Connection) | – |
| Aviation Socket Connection | Yes (Electrically Connected Through Aviation Sockets) | – |
| Outdoor Sealed Control Cable | Yes (Outdoor Sealed Control Cable) | – |
| Milliamp Zero-Sequence Current Detection | Yes (Reliably Determines Milliamp Zero-Sequence Current) | – |
| Phase-to-Phase Short-Circuit Detection | Yes (Reliably Determines Phase-to-Phase Short-Circuit Current) | – |
| Inside/Outside Detection Range | Yes (Inside and Outside Detection Range) | – |
| Different Neutral Point Grounding Methods | Yes (Suitable for Power Distribution Systems with Different Neutral Point Grounding Methods) | – |
| Neutral Point Not Grounded | Yes (Neutral Point Not Grounded Support) | – |
| Neutral Point Grounded Through Arc Suppression Coil | Yes (Neutral Point Grounded Through Arc Suppression Coil Support) | – |
| Neutral Point Grounded Through Low Resistance | Yes (Neutral Point Grounded Through Low Resistance Support) | – |
| Short-Circuit Current Flow and Close | Yes (Used to Flow and Close Short-Circuit Current) | – |
| Substations Application | Yes (Suitable for Substations) | – |
| Industrial and Mining Enterprises | Yes (Suitable for Industrial and Mining Enterprises) | – |
| Urban and Rural Power Grid Protection | Yes (Urban and Rural Power Grid Protection) | – |
| Automatic Distribution Networks | Yes (Suitable for Automatic Distribution Networks) | – |
| Frequent Operation Places | Yes (Suitable for Places with Frequent Operations) | – |
| Boundary Load Switch Structure | Yes (Consists of FZW28-12 Vacuum Load Switch and Controller) | – |
| Ambient Air Temperature | -40°C to +40°C | °C |
| Relative Air Humidity – Daily Average | ≤95 | % |
| Relative Air Humidity – Monthly Average | ≤90 | % |
| Altitude | ≤2000 | m |
| Wind Pressure | ≤700 (equivalent to wind speed 34m/s) | Pa |
| Pollution Level | Level IV (Electrical Specific Distance 31mm/kV) | – |
| Electrical Specific Distance | 31 | mm/kV |
| Ice Thickness | ≤10 | mm |
| Earthquake Intensity | ≤8 | ° |
| Installation Site Requirements | No Risk of Fire, Explosion, Serious Pollution, Chemical Corrosion and Severe Vibration | – |
| Key Advantages | Boundary Vacuum Load Switch, Milliamp Zero-Sequence Current Detection, Phase-to-Phase Short-Circuit Detection, Inside/Outside Detection Range, Different Neutral Point Grounding Methods Support, Automatic Distribution Network, Frequent Operation, Pollution Level IV, High Ice Thickness Resistance, Wide Temperature Range, Aviation Socket Connection | – |
| Primary Applications | 12kV Outdoor Three-Phase AC Power Distribution Systems, Substations, Industrial and Mining Enterprises, Urban and Rural Power Grid Protection, Automatic Distribution Networks, Frequent Operation Places, Different Neutral Point Grounding Methods, Short-Circuit Current Flow and Close | – |
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.
ceshi2ceshi2ceshi2ceshi2ceshi2
ceshiceshiceshiceshiceshiceshiceshiceshiceshiceshiceshiceshiceshiceshiceshiceshiceshiceshiceshiceshiceshi
Bepto focuses on the global market and provides our clients with products suitable for the local market:
Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
