Product features
This series of products has the characteristics of compact structure, reasonable design, reliable interlocking, and high insulation level. Its opening and closing adopt an upward and downward vertical straight motion method; Spring energy storage operating mechanism
The closing speed is not affected by the operator's operating force; The arc is extinguished inside the bell shaped insulation cover, and the free gas during arc ignition will not cause a decrease in insulation strength between phases or to ground.
An organic transparent insulation cover is installed between the bell shaped cover and the support component (i.e. between the switch isolation break) to completely isolate the charged body and improve the protection level of the ring main unit. Load switch and grounding switch
Reliable mechanical interlocking is installed between the switches, and mechanical interlocking with the cabinet is also installed on the switch panel. These interlocks are simple and effective, ensuring that there will be no misoperation or accidental contact with live electricity
Body. This series of products uses copper tungsten alloy arc contacts and plum blossom shaped main contacts, making the switch conduct electricity reliably and have a long electrical life. It has the advantages of easy maintenance, convenient operation, and reliable operation
Highly praised by a large number of users.
normal condition
◆ Environmental temperature: upper limit+40 ℃, lower limit -25 ℃;
◆ Altitude not exceeding 1000m;
The daily average relative humidity of the air shall not exceed 95%, and the monthly average shall not exceed 90%;
Earthquake intensity does not exceed 8 degrees;
Places without fire, explosion hazards, chemical corrosion, and severe vibration.
◆ Pollution level: Level II
Main parameters and technical performance
Technical parameters of FSN12A-12D series load switch and FSRN12A-12RD series load switch fuse combination electrical appliances
Rated voltage: 12kV
Rated frequency: 50Hz
Rated current: 630A (FKN12A-12D) 125A (FSRN12A-12RD)
Rated insulation level: 1min power frequency withstand voltage - to ground, phase to phase: 42kV
-Isolation break: 48kV
Lightning withstand voltage (peak) - to ground, phase to phase: 75kV
-Isolation break: 85kV
Rated short-circuit withstand current (thermal stability current): Load switch: 20kA
Grounding switch: 20kA
Rated short-circuit duration (thermal stability current): Load switch: 4 seconds
Grounding switch: 2s
Rated short-circuit making current (peak): 50kA
Rated breaking current: Active load breaking current: 630A
Closed loop breaking current: 630A
5% active load breaking current: 31.5A
Cable charging current: 10A
Breaking no-load transformer capacity: 1250KVA
Rated short-circuit breaking current (current limiting fuse): 31.5kA
Rated transfer current: 1200A
Mechanical life: 2000 times
Impactor output energy: 2-4J
Mechanism Characteristics
Distance between fracture surfaces: ≥ 150mm
Center to center distance between phases: 210 ± 2mm
Inter phase air gap: ≥ 125mm
Travel: 214 ± 4mm
Overtravel: ≥ 41mm
Three phase closing with different periods: ≤ 10ms
Three phase opening in different periods: ≤ 5ms
Inherent opening time of shunt release: 40-65
Product features
This series of products has the characteristics of compact structure, reasonable design, reliable interlocking, and high insulation level. Its opening and closing adopt an upward and downward vertical straight motion method; Spring energy storage operating mechanism
The closing speed is not affected by the operator's operating force; The arc is extinguished inside the bell shaped insulation cover, and the free gas during arc ignition will not cause a decrease in insulation strength between phases or to ground.
An organic transparent insulation cover is installed between the bell shaped cover and the support component (i.e. between the switch isolation break) to completely isolate the charged body and improve the protection level of the ring main unit. Load switch and grounding switch
Reliable mechanical interlocking is installed between the switches, and mechanical interlocking with the cabinet is also installed on the switch panel. These interlocks are simple and effective, ensuring that there will be no misoperation or accidental contact with live electricity
Body. This series of products uses copper tungsten alloy arc contacts and plum blossom shaped main contacts, making the switch conduct electricity reliably and have a long electrical life. It has the advantages of easy maintenance, convenient operation, and reliable operation
Highly praised by a large number of users.
normal condition
◆ Environmental temperature: upper limit+40 ℃, lower limit -25 ℃;
◆ Altitude not exceeding 1000m;
The daily average relative humidity of the air shall not exceed 95%, and the monthly average shall not exceed 90%;
Earthquake intensity does not exceed 8 degrees;
Places without fire, explosion hazards, chemical corrosion, and severe vibration.
◆ Pollution level: Level II
Main parameters and technical performance
Technical parameters of FSN12A-12D series load switch and FSRN12A-12RD series load switch fuse combination electrical appliances
Rated voltage: 12kV
Rated frequency: 50Hz
Rated current: 630A (FKN12A-12D) 125A (FSRN12A-12RD)
Rated insulation level: 1min power frequency withstand voltage - to ground, phase to phase: 42kV
-Isolation break: 48kV
Lightning withstand voltage (peak) - to ground, phase to phase: 75kV
-Isolation break: 85kV
Rated short-circuit withstand current (thermal stability current): Load switch: 20kA
Grounding switch: 20kA
Rated short-circuit duration (thermal stability current): Load switch: 4 seconds
Grounding switch: 2s
Rated short-circuit making current (peak): 50kA
Rated breaking current: Active load breaking current: 630A
Closed loop breaking current: 630A
5% active load breaking current: 31.5A
Cable charging current: 10A
Breaking no-load transformer capacity: 1250KVA
Rated short-circuit breaking current (current limiting fuse): 31.5kA
Rated transfer current: 1200A
Mechanical life: 2000 times
Impactor output energy: 2-4J
Mechanism Characteristics
Distance between fracture surfaces: ≥ 150mm
Center to center distance between phases: 210 ± 2mm
Inter phase air gap: ≥ 125mm
Travel: 214 ± 4mm
Overtravel: ≥ 41mm
Three phase closing with different periods: ≤ 10ms
Three phase opening in different periods: ≤ 5ms
Inherent opening time of shunt release: 40-65
Product features
This series of products has the characteristics of compact structure, reasonable design, reliable interlocking, and high insulation level. Its opening and closing adopt an upward and downward vertical straight motion method; Spring energy storage operating mechanism
The closing speed is not affected by the operator's operating force; The arc is extinguished inside the bell shaped insulation cover, and the free gas during arc ignition will not cause a decrease in insulation strength between phases or to ground.
An organic transparent insulation cover is installed between the bell shaped cover and the support component (i.e. between the switch isolation break) to completely isolate the charged body and improve the protection level of the ring main unit. Load switch and grounding switch
Reliable mechanical interlocking is installed between the switches, and mechanical interlocking with the cabinet is also installed on the switch panel. These interlocks are simple and effective, ensuring that there will be no misoperation or accidental contact with live electricity
Body. This series of products uses copper tungsten alloy arc contacts and plum blossom shaped main contacts, making the switch conduct electricity reliably and have a long electrical life. It has the advantages of easy maintenance, convenient operation, and reliable operation
Highly praised by a large number of users.
normal condition
◆ Environmental temperature: upper limit+40 ℃, lower limit -25 ℃;
◆ Altitude not exceeding 1000m;
The daily average relative humidity of the air shall not exceed 95%, and the monthly average shall not exceed 90%;
Earthquake intensity does not exceed 8 degrees;
Places without fire, explosion hazards, chemical corrosion, and severe vibration.
◆ Pollution level: Level II
Main parameters and technical performance
Technical parameters of FSN12A-12D series load switch and FSRN12A-12RD series load switch fuse combination electrical appliances
Rated voltage: 12kV
Rated frequency: 50Hz
Rated current: 630A (FKN12A-12D) 125A (FSRN12A-12RD)
Rated insulation level: 1min power frequency withstand voltage - to ground, phase to phase: 42kV
-Isolation break: 48kV
Lightning withstand voltage (peak) - to ground, phase to phase: 75kV
-Isolation break: 85kV
Rated short-circuit withstand current (thermal stability current): Load switch: 20kA
Grounding switch: 20kA
Rated short-circuit duration (thermal stability current): Load switch: 4 seconds
Grounding switch: 2s
Rated short-circuit making current (peak): 50kA
Rated breaking current: Active load breaking current: 630A
Closed loop breaking current: 630A
5% active load breaking current: 31.5A
Cable charging current: 10A
Breaking no-load transformer capacity: 1250KVA
Rated short-circuit breaking current (current limiting fuse): 31.5kA
Rated transfer current: 1200A
Mechanical life: 2000 times
Impactor output energy: 2-4J
Mechanism Characteristics
Distance between fracture surfaces: ≥ 150mm
Center to center distance between phases: 210 ± 2mm
Inter phase air gap: ≥ 125mm
Travel: 214 ± 4mm
Overtravel: ≥ 41mm
Three phase closing with different periods: ≤ 10ms
Three phase opening in different periods: ≤ 5ms
Inherent opening time of shunt release: 40-65
