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 |
---|---|
Brand | JUCRO |
Model | FKRN12-24D |
FOB port | SHANGHAI/NINGBO |
Terms of Payment | L/C, Western Union, MoneyGram, T/T |
Update Time | Dec 11,2024 |
FZRN12-24D 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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