1.Overview
The ZW32-12/T630-20 Deeply Integrated Pole-Mounted Vacuum Circuit Breaker is a new type of distribution network equipment independently developed and improved by our company based on the original pole-mounted vacuum circuit breaker products.is product utilizes standard aviation plug connections between primary equipment and secondary equipment. The signal output from the current and voltage sensors, as well as the signal reception and processing of the FTU (Feeder Terminal Unit), are all digitalized. Our product's insulation system does not contain harmful substances like SF6 gas, and the current sensor uses a low-power coil. The working power supply employs a capacitive power extraction device, completely avoiding the phenomenon of PT (Potential Transformer) explosions caused by harmonics or secondary short circuits in traditional PT power extraction methods. This product meets the requirements for standardization, digitalization, intelligence, and eco-friendliness.
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Parameter Category |
Parameter Index |
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Rated Voltage |
12 kV |
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Rated Insulation Level |
1 min Rated Power Frequency Withstand Voltage |
Wet test |
Phase to phaseand phase-to-ground: 30 kV; Breaker: 34 kV |
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Dry test |
Phase to phaseand phase-to-ground: 42 kV; Breaker: 48 kV |
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Rated Lightning Impulse Withstand Voltage (Peak Value) |
Inter-phase to ground: 75 kV |
75 kV |
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Breaker
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85 kV |
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Rated Current |
630 A |
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Rated Short-Circuit Breaking Current |
20 kA、25 kA |
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Rated Short-Circuit Closing Current (Peak Value) |
50 kA、63 kA |
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Rated Dynamic Stability Current (Peak Value) |
50 kA、63 kA |
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Rated Thermal Stability Current (Effective Value) |
20 kA、25 kA |
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Rated Short-Circuit Breaking Current Operations |
30times |
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Rated Thermal Stability Time |
4s |
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Rated Operating Sequence |
O－0.3s－CO－180s－CO |
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Mechanical Life |
10000times |
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Allowable Contact Wear Thickness |
3 mm |
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Control Voltage |
DC24V |
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Capacitive Power Extraction Device |
DC27V/10×2（VA） |
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Distribution Automation Feeder Terminal Unit |
Box type |
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3.Operating Environment
1. Ambient Temperature: Minimum Temperature: -50°C, Maximum Temperature: +70°C, Maximum Daily Temperature Difference: 25°C
2. Ambient Humidity: Daily Average Relative Humidity: ≤ 95%, Monthly Average Relative Humidity: ≤ 90%
3. Altitude: ≤ 2000 m (Custom design required for altitudes greater than 2000 m)
4. Pollution Level: Level IV
5. Operating Environment: Outdoor, in locations without flammable or explosive hazards, chemical corrosion, or frequent severe vibrations.