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ZW32-12
Fenarro
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ZW32-12 outdoor vacuum circuit breaker (hereinafter referred to as the breaker) is rated at 12kV, three-phase AC, 50Hz. It is mainly used for switching load current, overload current, and short-circuit current in power systems. This breaker is widely applied in substations, industrial and mining enterprises, and rural power grids where frequent operations are required. It is compact, lightweight, moisture-proof, maintenance-free, and designed to withstand severe weather and pollution conditions.
Suitable for 12kV three-phase AC power distribution networks
Widely used in substations, industrial enterprises, and rural power grids
Ideal for frequent operation scenarios
Provides reliable protection and control of distribution systems
Compact structure, lightweight, and easy installation
Vacuum interrupter ensures strong arc extinguishing capacity
Maintenance-free design, reducing operation costs
Anti-condensation and pollution-resistant, suitable for harsh environments
Reliable performance in switching load, overload, and short-circuit currents
Fully compliant with international and national standards
GB1984: AC High Voltage Circuit Breakers
GB11022: Common Technical Requirements for High Voltage Switchgear and Controlgear
GB311.1-6: Insulation Coordination for High Voltage Transmission and Transformation Equipment
GB763: Heating of AC High Voltage Apparatus in Long-Term Operation
GB2706: Dynamic and Thermal Stability Test Methods for AC High Voltage Apparatus
GB3309: Mechanical Tests for High Voltage Switchgear at Normal Temperature
DL/T593: Common Ordering Technical Conditions for High Voltage Switchgear
| Serial No. | Item | Unit | Numerical Value |
|---|---|---|---|
| 1 | Rated Voltage | kV | 12 |
| 2 | Rated Frequency | Hz | 50 |
| 3 | Rated Current | A | 630 |
| 4 | Rated Short - circuit Breaking Current | kA | 20 |
| 5 | Rated Peak Withstand Current (Peak Value) | kA | 50 |
| 6 | Rated Short - time Withstand Current | kA | 20 |
| 7 | Rated Short - circuit Making Current (Peak Value) | kA | 50 |
| 8 | Mechanical Life | times | 10000 |
| 9 | Number of Rated Short - circuit Breaking Current Operations | times | 30 |
| 10 | Power Frequency Withstand Voltage (1min): Wet (Dry) (Phase - to - phase, Phase - to - ground, Across Contacts) | kV | 42/48 |
| 11 | Lightning Impulse Withstand Voltage (Peak Value) (Phase - to - phase, Phase - to - ground, Across Contacts) | kV | 75/85 |
| 12 | Power Frequency Withstand Voltage of Secondary Circuit (1min) | kV | 2 |
ZW32-12 outdoor vacuum circuit breaker (hereinafter referred to as the breaker) is rated at 12kV, three-phase AC, 50Hz. It is mainly used for switching load current, overload current, and short-circuit current in power systems. This breaker is widely applied in substations, industrial and mining enterprises, and rural power grids where frequent operations are required. It is compact, lightweight, moisture-proof, maintenance-free, and designed to withstand severe weather and pollution conditions.
Suitable for 12kV three-phase AC power distribution networks
Widely used in substations, industrial enterprises, and rural power grids
Ideal for frequent operation scenarios
Provides reliable protection and control of distribution systems
Compact structure, lightweight, and easy installation
Vacuum interrupter ensures strong arc extinguishing capacity
Maintenance-free design, reducing operation costs
Anti-condensation and pollution-resistant, suitable for harsh environments
Reliable performance in switching load, overload, and short-circuit currents
Fully compliant with international and national standards
GB1984: AC High Voltage Circuit Breakers
GB11022: Common Technical Requirements for High Voltage Switchgear and Controlgear
GB311.1-6: Insulation Coordination for High Voltage Transmission and Transformation Equipment
GB763: Heating of AC High Voltage Apparatus in Long-Term Operation
GB2706: Dynamic and Thermal Stability Test Methods for AC High Voltage Apparatus
GB3309: Mechanical Tests for High Voltage Switchgear at Normal Temperature
DL/T593: Common Ordering Technical Conditions for High Voltage Switchgear
| Serial No. | Item | Unit | Numerical Value |
|---|---|---|---|
| 1 | Rated Voltage | kV | 12 |
| 2 | Rated Frequency | Hz | 50 |
| 3 | Rated Current | A | 630 |
| 4 | Rated Short - circuit Breaking Current | kA | 20 |
| 5 | Rated Peak Withstand Current (Peak Value) | kA | 50 |
| 6 | Rated Short - time Withstand Current | kA | 20 |
| 7 | Rated Short - circuit Making Current (Peak Value) | kA | 50 |
| 8 | Mechanical Life | times | 10000 |
| 9 | Number of Rated Short - circuit Breaking Current Operations | times | 30 |
| 10 | Power Frequency Withstand Voltage (1min): Wet (Dry) (Phase - to - phase, Phase - to - ground, Across Contacts) | kV | 42/48 |
| 11 | Lightning Impulse Withstand Voltage (Peak Value) (Phase - to - phase, Phase - to - ground, Across Contacts) | kV | 75/85 |
| 12 | Power Frequency Withstand Voltage of Secondary Circuit (1min) | kV | 2 |
