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Load Switch-fuse Combination FKN12A-12(D)/T630-20 FKRN12A-12(D)/T125-31.5 AC high voltage gas production load switch/High voltage
Load Switch-fuse Combination FKN12A-12(D)/T630-20 FKRN12A-12(D)/T125-31.5 AC high voltage gas production load switch/High voltage
Categories Accessories for switchgear Album View larger image Brand JUCRO Model FKN12A-12(D)/T630-20 FKRN12A-12(D)/T125-31.5 FOB port SHANGHAI/NINGBO Terms of Payment L/C, Western Union, MoneyGram, T/T Update Time 2021-03-05 Detail InformationF KN12A-12 (D )/T630-20 FKRN12A-12 (D )/T125-31.5 AC high voltage gas production load switch/High voltage load switch-fuse combination
FKN12A-12D gas production load switch, FKRN12A-12D series gas production load switch-fuse combination electric appliance, is a new series of switches and equipment developed by our company. It is suitable for 12KV and below three-phase power distribution system, as transformer, cable and overhead. It is used for the control and protection of power equipment such as lines; it is especially suitable for terminal substations and box-type substations in urban and rural networks. It is also suitable for the control and protection of ring networks and dual radiant power supply units.
FKN12A-12D series gas production load switch can divide load current and adoptive current.
This series of products has the characteristics of compact structure, reasonable design, reliable interlocking and high insulation level; The spring energy storage operating mechanism makes the opening and closing speed unaffected by the operator's operating force; The arc is extinguished in the bell-shaped insulating cover, and the free gas during arcing does not cause a decrease in the insulation strength between the phases or the ground. Adopting the arc-ignition needle and plum-shaped contact of copper-tungsten alloy, the switch is reliable in conduction and long in electrical life. This series of products is easy to maintain, easy to operate, reliable in operation, and won praise from users.
Working condition:
1. Ambient air temperature: -25 ℃-40 ℃;
2. The altitude should not over 1000mm;
3. The daily average relative humidity is not more than 95%, and the monthly average is not more than 90%;
4. The earthquake crack does not exceed 8 degrees;
5. No fire, explosion hazard, chemical corrosion and severe vibration;
6. Pollution level: class 2.
Main technical parameter
No.
Item
Unit
参数 Parameters
1
Fracture opening
mm
≥175
2
Interphase center distance
210±2
3
Interphase air gap
≥125
4
travel
210±4
5
Over travel
≥40
6
Three-phase closing
ms
≤0
7
Three-phase opening
≤5
8
Shunt release inherent breaking time
40-65
9
Main loop resistance
μΩ
≤130
Mechanical propertiesNo.
Item
Unit
FKN12A-12D
FKN12A-12D
1
Rated voltage
KV
12
12
2
Rated Frequency
Hz
50
50
3
Rated Current
A
630
125
4
Rated insulation level
1min power frequency withstand voltageOn the groud
KV
42
42
Fracture
48
48
Rated lightning impulse withstand current(peak)On the groud
75
75
Fracture
85
85
5
Rated short-time withstand current (heat-stable current )Load switch
KA
20
Grounding switch
20
6
Rated short circuit duration (Thermal stabilization time )Load switch
S
4
Grounding switch
2
7
Rated short circuit closing current (peak)
KA
50
8
Rated breaking current
Active load breaking currentA
630
Closed loop breaking current
630
Cable charging current
10
Breaking the capacity of the no-load transformerKVA
1250
9
Rated short-circuit breaking current (current limiting fuse)KA
31.5
10
Rated transfer current
A
1200
11
Mechanical life
Times
2000
2000
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