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Load Break Switch FKRN12-24D series high pressure gas pressure from JUCRO Electric
Load Break Switch FKRN12-24D series high pressure gas pressure from JUCRO Electric
Categories Accessories for switchgear Album View larger image Brand JUCRO Model FKRN12-24D FOB port SHANGHAI/NINGBO Terms of Payment L/C, Western Union, MoneyGram, T/T Update Time 2021-02-27 Detail InformationFZRN12-24D series high pressure gas pressure load switch from JUCRO ElectricFZRN12-24D series high pressure gas pressure load switch and its combination electric appliance are AC 24KV, 50Hz indoor high voltage switchgear. The load switch has the characteristics of high technical parameters and reliable operation. The basic form of the operating mechanism is manual spring energy storage type. It can be equipped with electric spring operating mechanism, based on the principle of air pressure and arc extinguishing, so it can be divided multiple times without replacing the arc extinguishing tube.
The high-voltage load switch can close, load and break the load current under normal circuit and has the ability to close the short-circuit current and carry the short-circuit current for a specified time.
The FZRN12-24D series load switch can be equipped with a grounding switch. The grounding switch has the same short-circuit current closing capability as the load switch, as well as dynamic thermal stability, and has a strict mechanical interlock with the load switch, which is structurally impossible misuse.
Normal use environment:
1.Ambient air temperature: -25°C-+60°C
2.Altitude: no more than 1000mm.
3.Ambient temperature: up to +40 ° C, minimum -10 ° C
4.Relative humidity: daily average is not more than 95%, monthly average is not more than 90%
5.Earthquake intensity: less than 8 degrees
Main technical parameter
No.
Item
Unit
FKN12-24(D)/630
FKN12-24(RD)/125
1
Rated voltage
KV
24
2
Rated Frequency
Hz
50
3
Rated Current
A
630
125
4
lightning shock resistance current
KV
Earth and phase125 Isolation fracture145
5
1 minpower frequency withstand voltage
KV
Earth and phase65 Isolation fracture79
6
Rated the thermal stability of current
KA
20
7
Rated current dynamic stability
KA
50
8
Rated closing current (peak)
KA
50
9
Rated short-circuit breaking current
KA
31.5
10
Rated transfer current
A
1200
11
Maximum breaking current (peak)
A
1500
12
Breaking the capacity of the no-load transformer
KA
1250
13
Rated cable charging current
A
10
14
Rated active load current start count
Times
>100
15
The impactor triggers the load switch opening time
S
<0.06
16
Grounding switch thermal stability current
KA
20
17
Grounding switch dynamic steady current (peak)
KA
50
18
Electric operating power supply voltage (AC/DC)
V
110、220
Mechanical property parameter
No.
项目 Item
Unit
FKN12-24(D)/630
FKN12-24(RD)/125
1
Moving contact total stroke
mm
295±5
2
Moving contact overtravel
mm
35±2
3
Auxiliary contact opening distance
mm
>240
4
Three-phase closing synchronization
ms
≤12
5
Three-phase trip closure
ms
≤7
6
Just dividing speed
m/s
≥2.5
7
Rigid speed
m/s
≥2.5
8
Grounding switch break distance
mm
230±5
9
Main loop resistance
μΩ
≤180
≤400
10
Maximum operating torque
Nm
<160
<180
Outline technical parameter
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