FZW28Z-12 Series Outdoor Boundaries Vacuum Load Switch
Technical specification
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Item |
Units |
Parameters |
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|
Rated voltage |
kV |
12 |
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|
Rated insulation lever |
1min power frequency withstand voltage(interphase, to earth, fracture) |
kV |
Dry |
42/48 |
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Wet |
34 |
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Lightning impulse withstand voltage(interphase, to earth, fracture) |
kV |
75/85 |
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Rated frequency |
Hz |
50 |
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|
Rated current |
A |
630 |
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Rated short-time withstand current and duration |
KA/4s |
12.5/16/20 |
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|
Rated short-circuit closing current |
KA |
31.5、40、50 |
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Mechanical life |
Times |
10000 |
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Net Weight |
kg |
210 |
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Product Model
Dimension
Product Functions
◆Load Current Switching: Safely makes and breaks load currents in 10kV overhead distribution lines.
◆Intelligent Fault Detection: Continuously monitors line conditions to detect abnormalities and fault conditions.
◆Automatic Fault Isolation: Automatically removes single-phase earth faults and isolates permanent faults without manual intervention.
◆Remote Communication: Equipped with communication capabilities for integration with SCADA systems and remote monitoring.
◆Dual Operation Modes: Supports both manual on-site operation and electric remote operation for flexible control.
◆Branch Line Protection: Ideal for T-connections and end-user branch lines, ensuring selective fault coordination.
Applicable Environment
◇Extreme Temperature Range: Reliable operation from -40℃ to +40℃, suitable for harsh climates.
◇High-Altitude Installation: Designed for elevations up to 3000 meters without derating (higher altitudes available upon request).
◇Humidity Tolerance: Withstands daily and monthly average humidity ≤90%.
◇Wind Resistance: Engineered for air pressure up to 700Pa (equivalent to 34m/s wind speed).
◇Multiple Neutral Grounding Systems: Compatible with neutral-point earthing, arc suppression coil grounding, and low resistance grounding.
◇Outdoor Installation: Pole-mounted design withstands direct sun exposure, rain, and wind.
Product Highlights
◆Innovative Hybrid Insulation: Combines vacuum arc extinguishing with SF6 gas insulation vacuum interrupts the arc while SF6 provides dielectric insulation optimizing performance and reducing maintenance.
◆True Maintenance-Free: Sealed SF6 insulation and durable vacuum interrupter ensure extended service intervals, minimizing lifetime costs.
◆Intelligent Self-Healing: Advanced fault detection automatically removes single-phase earth faults and isolates permanent faults, reducing outages and improving reliability metrics.
◆Extreme Adaptability: Designed for high-altitude installations up to 3000 meters and temperatures as low as -40℃, ideal for mountainous and cold climates.
◆Versatile Grounding Compatibility: Works with all common neutral grounding types (solid, arc suppression coil, low resistance), simplifying specification and inventory.