Product features
Our company's FSZ1-12 series vacuum circuit breaker products have reached the leading level in China in terms of performance. In addition to maintaining the advantages of small volume, strong breaking capacity, high insulation strength, no pollution, and no explosion risk of vacuum circuit breakers, they also have the following characteristics:
Unique exterior design
Invite domestic and foreign experts to specialize in the design and improvement of circuit breakers for the new generation of 12kV vacuum circuit breakers.
◆ Product aesthetics and high corrosion resistance
The surface treatment of most parts within the product organization adopts advanced nickel phosphorus alloy treatment technology, which not only improves the overall aesthetics of the operating mechanism, but also ensures that the product is highly resistant to pollution and corrosion
Erosion ability.
◆ Long lifespan
FSZ1-12 adopts a high-performance integrated chain spring operating mechanism, which is highly reliable, easy to maintain, and has a mechanical life of up to 20000 times.
◆ High quality circuit design
The thickness of the silver plating layer on the primary electrical circuit is ≥ 8 μ m. The selection of electrical components with the best quality both domestically and internationally for the secondary circuit has improved the overall reliability and stability of the circuit.
◆ High insulation strength
Selecting high-quality insulation materials while increasing design margin significantly improves the insulation performance of circuit breakers. When used in environments with an altitude of 1000 meters or below, there is no need to replace any zeros
Pieces can meet the insulation requirements.
normal condition
◆ Environmental temperature: maximum temperature+40 ℃, minimum temperature -15 ℃.
◆ Environmental humidity:
The average relative humidity measured within 24 hours shall not exceed 95%; The average monthly relative humidity does not exceed 90%;
The average water vapor pressure measured within 24 hours shall not exceed 2.2kPa; The average monthly water vapor pressure does not exceed 1.8kPa. Under such conditions, condensation may occasionally occur.
The altitude does not exceed 1000m.
The surrounding air is not significantly contaminated by dust, smoke, corrosive and/or flammable gases, vapors, or salt mist.
Vibration or ground motion from outside the switchgear and control equipment can be ignored.
The seismic intensity shall not exceed level 8.
Special usage conditions: When used under normal environmental conditions beyond those specified in GB/T11022 and this installation and use manual, the user and the company shall negotiate.
Main parameters and technical performance
Rated voltage: 12kV
Rated current: 630-4000A
Rated frequency: 50Hz
Rated power frequency withstand voltage (1min): 42 (fracture 48) kV
Rated lightning impulse withstand voltage (full wave): 75 (85 on break) kV
Rated short-circuit breaking current: 20, 25, 31.5, 40, 50kA
Rated short-circuit making current (peak): 50, 63, 80, 100, 125kA
Rated short-term withstand current (4s): 20, 25, 31.5, 40, 100kA
Rated peak withstand current: 50, 63, 80, 100, 125kA
Auxiliary circuit power frequency withstand voltage (1min): 2000kV
Rated breaking current of a single capacitor bank: 630 (800 for 40kA) A
Rated back to back capacitor bank breaking current: 400A
Rated capacitor bank making inrush current (peak): 12.5 (frequency not exceeding 1000Hz)
Mechanical life: 20000 (10000 times at 50kA)
Rated current breaking frequency: 20000 (10000 at 50kA) times
Rated short-circuit current breaking frequency: E2 level
Rated operating sequence: O-0.3S-CO-180S-CO (≤ 40kA)
O-180S-CO-180S-CO (50kA)
Mechanical characteristic parameters of circuit breakers
Contact opening distance: 11 ± 1mm
Contact overtravel *: 3-4 mm
Average box splitting speed * *: 0.9~1.3m/s
Average box closing speed * * *: 0.4~0.8m/s
Contact box closing bounce time: ≤ 2ms
Closed box separation, closed box different periodicity: ≤ 2ms
Splitting time: 20-50ms
Closing time: 30-60ms
Center distance between phases: 150 ± 0.5, 210 ± 0.5, 275 ± 0.5mm
Product features
Our company's FSZ1-12 series vacuum circuit breaker products have reached the leading level in China in terms of performance. In addition to maintaining the advantages of small volume, strong breaking capacity, high insulation strength, no pollution, and no explosion risk of vacuum circuit breakers, they also have the following characteristics:
Unique exterior design
Invite domestic and foreign experts to specialize in the design and improvement of circuit breakers for the new generation of 12kV vacuum circuit breakers.
◆ Product aesthetics and high corrosion resistance
The surface treatment of most parts within the product organization adopts advanced nickel phosphorus alloy treatment technology, which not only improves the overall aesthetics of the operating mechanism, but also ensures that the product is highly resistant to pollution and corrosion
Erosion ability.
◆ Long lifespan
FSZ1-12 adopts a high-performance integrated chain spring operating mechanism, which is highly reliable, easy to maintain, and has a mechanical life of up to 20000 times.
◆ High quality circuit design
The thickness of the silver plating layer on the primary electrical circuit is ≥ 8 μ m. The selection of electrical components with the best quality both domestically and internationally for the secondary circuit has improved the overall reliability and stability of the circuit.
◆ High insulation strength
Selecting high-quality insulation materials while increasing design margin significantly improves the insulation performance of circuit breakers. When used in environments with an altitude of 1000 meters or below, there is no need to replace any zeros
Pieces can meet the insulation requirements.
normal condition
◆ Environmental temperature: maximum temperature+40 ℃, minimum temperature -15 ℃.
◆ Environmental humidity:
The average relative humidity measured within 24 hours shall not exceed 95%; The average monthly relative humidity does not exceed 90%;
The average water vapor pressure measured within 24 hours shall not exceed 2.2kPa; The average monthly water vapor pressure does not exceed 1.8kPa. Under such conditions, condensation may occasionally occur.
The altitude does not exceed 1000m.
The surrounding air is not significantly contaminated by dust, smoke, corrosive and/or flammable gases, vapors, or salt mist.
Vibration or ground motion from outside the switchgear and control equipment can be ignored.
The seismic intensity shall not exceed level 8.
Special usage conditions: When used under normal environmental conditions beyond those specified in GB/T11022 and this installation and use manual, the user and the company shall negotiate.
Main parameters and technical performance
Rated voltage: 12kV
Rated current: 630-4000A
Rated frequency: 50Hz
Rated power frequency withstand voltage (1min): 42 (fracture 48) kV
Rated lightning impulse withstand voltage (full wave): 75 (85 on break) kV
Rated short-circuit breaking current: 20, 25, 31.5, 40, 50kA
Rated short-circuit making current (peak): 50, 63, 80, 100, 125kA
Rated short-term withstand current (4s): 20, 25, 31.5, 40, 100kA
Rated peak withstand current: 50, 63, 80, 100, 125kA
Auxiliary circuit power frequency withstand voltage (1min): 2000kV
Rated breaking current of a single capacitor bank: 630 (800 for 40kA) A
Rated back to back capacitor bank breaking current: 400A
Rated capacitor bank making inrush current (peak): 12.5 (frequency not exceeding 1000Hz)
Mechanical life: 20000 (10000 times at 50kA)
Rated current breaking frequency: 20000 (10000 at 50kA) times
Rated short-circuit current breaking frequency: E2 level
Rated operating sequence: O-0.3S-CO-180S-CO (≤ 40kA)
O-180S-CO-180S-CO (50kA)
Mechanical characteristic parameters of circuit breakers
Contact opening distance: 11 ± 1mm
Contact overtravel *: 3-4 mm
Average box splitting speed * *: 0.9~1.3m/s
Average box closing speed * * *: 0.4~0.8m/s
Contact box closing bounce time: ≤ 2ms
Closed box separation, closed box different periodicity: ≤ 2ms
Splitting time: 20-50ms
Closing time: 30-60ms
Center distance between phases: 150 ± 0.5, 210 ± 0.5, 275 ± 0.5mm
Product features
Our company's FSZ1-12 series vacuum circuit breaker products have reached the leading level in China in terms of performance. In addition to maintaining the advantages of small volume, strong breaking capacity, high insulation strength, no pollution, and no explosion risk of vacuum circuit breakers, they also have the following characteristics:
Unique exterior design
Invite domestic and foreign experts to specialize in the design and improvement of circuit breakers for the new generation of 12kV vacuum circuit breakers.
◆ Product aesthetics and high corrosion resistance
The surface treatment of most parts within the product organization adopts advanced nickel phosphorus alloy treatment technology, which not only improves the overall aesthetics of the operating mechanism, but also ensures that the product is highly resistant to pollution and corrosion
Erosion ability.
◆ Long lifespan
FSZ1-12 adopts a high-performance integrated chain spring operating mechanism, which is highly reliable, easy to maintain, and has a mechanical life of up to 20000 times.
◆ High quality circuit design
The thickness of the silver plating layer on the primary electrical circuit is ≥ 8 μ m. The selection of electrical components with the best quality both domestically and internationally for the secondary circuit has improved the overall reliability and stability of the circuit.
◆ High insulation strength
Selecting high-quality insulation materials while increasing design margin significantly improves the insulation performance of circuit breakers. When used in environments with an altitude of 1000 meters or below, there is no need to replace any zeros
Pieces can meet the insulation requirements.
normal condition
◆ Environmental temperature: maximum temperature+40 ℃, minimum temperature -15 ℃.
◆ Environmental humidity:
The average relative humidity measured within 24 hours shall not exceed 95%; The average monthly relative humidity does not exceed 90%;
The average water vapor pressure measured within 24 hours shall not exceed 2.2kPa; The average monthly water vapor pressure does not exceed 1.8kPa. Under such conditions, condensation may occasionally occur.
The altitude does not exceed 1000m.
The surrounding air is not significantly contaminated by dust, smoke, corrosive and/or flammable gases, vapors, or salt mist.
Vibration or ground motion from outside the switchgear and control equipment can be ignored.
The seismic intensity shall not exceed level 8.
Special usage conditions: When used under normal environmental conditions beyond those specified in GB/T11022 and this installation and use manual, the user and the company shall negotiate.
Main parameters and technical performance
Rated voltage: 12kV
Rated current: 630-4000A
Rated frequency: 50Hz
Rated power frequency withstand voltage (1min): 42 (fracture 48) kV
Rated lightning impulse withstand voltage (full wave): 75 (85 on break) kV
Rated short-circuit breaking current: 20, 25, 31.5, 40, 50kA
Rated short-circuit making current (peak): 50, 63, 80, 100, 125kA
Rated short-term withstand current (4s): 20, 25, 31.5, 40, 100kA
Rated peak withstand current: 50, 63, 80, 100, 125kA
Auxiliary circuit power frequency withstand voltage (1min): 2000kV
Rated breaking current of a single capacitor bank: 630 (800 for 40kA) A
Rated back to back capacitor bank breaking current: 400A
Rated capacitor bank making inrush current (peak): 12.5 (frequency not exceeding 1000Hz)
Mechanical life: 20000 (10000 times at 50kA)
Rated current breaking frequency: 20000 (10000 at 50kA) times
Rated short-circuit current breaking frequency: E2 level
Rated operating sequence: O-0.3S-CO-180S-CO (≤ 40kA)
O-180S-CO-180S-CO (50kA)
Mechanical characteristic parameters of circuit breakers
Contact opening distance: 11 ± 1mm
Contact overtravel *: 3-4 mm
Average box splitting speed * *: 0.9~1.3m/s
Average box closing speed * * *: 0.4~0.8m/s
Contact box closing bounce time: ≤ 2ms
Closed box separation, closed box different periodicity: ≤ 2ms
Splitting time: 20-50ms
Closing time: 30-60ms
Center distance between phases: 150 ± 0.5, 210 ± 0.5, 275 ± 0.5mm
