ZW32-12G Series outdoor high voltage vacuum circuit breaker (plateau)
Technical specification
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Item |
Units |
Parameters |
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|
Rated voltage |
KV |
12 |
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|
Rated insulation level |
1min power frequency withstand voltage |
Dry |
KV |
To earth, phase to phase 48 Fracture 48 |
|
Wet |
34 |
|||
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Lightning impulse withstand voltage (peak) |
|
To earth, phase to phase 85 Fracture 85 |
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Rated frequency |
Hz |
50 |
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Rated current |
A |
630 |
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Rated short-circuit breaking current |
KA |
12.5/16/20 |
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Rated short-circuit closed current(peak) |
KA |
50 |
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Rated peak withstand current |
KA |
50 |
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Rated short-time withstand current(4s) |
KA |
20 |
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Rated operating sequence |
|
O-0.3s-CO-180s-CO |
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Switch on/opening time |
ms |
25-50/15-50 |
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Rated short-circuit breaking current breaking times |
Times |
30 |
||
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Mechanism life |
Times |
10000 |
||
|
The control circuit and auxillary circuit 1 min power frequency withstand voltage |
v |
2000 |
||
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Rated operating voitage and auxiliary circuit rated voltage |
v |
DC220/AC220 |
||
|
Over-current tripper |
Rated current |
a |
5 |
|
|
Tripping current precision |
% |
±10 |
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Product Model
Dimension
Product Functions
◆Comprehensive Current Switching: Safely breaks and closes load currents, overload currents, and short-circuit currents in 12kV distribution systems.
◆Frequent Operation Capability: Specifically designed for applications requiring repeated switching operations without performance degradation.
◆Auto-Reclosing Function: Can be matched with controller to form reclosing system for automated fault recovery and grid restoration.
◆Remote "Three Control" Functions: Supports remote control, remote sensing, and remote communication when integrated with appropriate controllers for SCADA systems
◆Distribution Automation Ready: Compatible with modern grid automation requirements for smart distribution networks.
Applicable Environment
◇Rated System: Suitable for 12kV, 50Hz three-phase AC outdoor power systems.
◇High-Altitude Capability: Designed for elevations up to 3000 meters (If need higher altitude, its rated level accordingly).
◇Temperature Range: Reliable operation in extreme cold from -40℃ to +40℃.
◇Wind Resistance: Engineered for wind speeds up to 34m/s.
◇Ice Resistance: Withstands ice thickness up to 10mm.
◇Pollution Level: Suitable for air pollution levels up to class IV.
◇Air Quality: Requires environment free from corrosive gases, flammable vapors, and significant pollution.
Product Highlights
◆Extreme Weather Capability: Withstands -40℃ cold, 34m/s winds, 10mm ice, and class IV pollution, ensuring reliable operation in demanding outdoor environments.
◆Distribution Automation Ready: With a controller, provides auto-reclosing and supports remote control, sensing, and communication for smart grid integration.
◆Proven Breaking Performance: Reliably interrupts load, overload, and short-circuit currents using vacuum technology for clean, maintenance-free operation and long life.
◆Frequent Operation Suitability: Designed for frequent switching with robust construction that handles repeated duty cycles without performance loss.
◆Complete Environmental Protection: Sealed design protects against moisture, pollution, ice, and temperature extremes for long-term reliability in remote locations.
◆Versatile Application Range: Ideal for plateau regions, cold climates, coastal areas with high pollution, and locations needing automated distribution.