Customization: | Available |
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Type: | High-voltage |
Structure: | Three-column Disconnector |
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24kV Indoor SF6 Switch-Disconnector FL(R)N36 Load Break Switch LBS and fuse combination appliance are designed for power stations and industrial electrical equipment. They are used for load control and line protection in 24kV power systems, handling various currents including load, closed-loop, and charging currents. The combined appliance can interrupt rated short-circuit currents, making it ideal for electrical equipment sets like ring network units and box-type substations.
These devices are particularly well-suited for urban residential power distribution, small secondary substations, switch offices, industrial and mining sites, large shopping malls, airports, subways, hospitals, stadiums, and similar locations.
The product meets standards GB3804, GB16926, IEC 60265-1, and IEC60420.
No. |
ltems |
Unit |
Value | |||||
FLN36-24 | FLRN36-24 | |||||||
1 | Rated voltage | KV | 24 | |||||
2 | Rated frequency | Hz | 50/60 | |||||
3 | Rated current | A | 630 | 1250 | ||||
4 | Rated insulation level |
1 min power frequency withstand voltage |
phase-to-phase | KV | 50 | |||
phase to earth | KV | 50 | ||||||
fracture | 60 | |||||||
Lightning impulse withstand voltage voltage(peak |
phase-to-phase | 25 | ||||||
phase to earth | 125 | |||||||
fracture | 45 | |||||||
5 | Auxiliary circuit 1 min power frequency | V | 2000 | |||||
6 | Rated thermal stability current /duration (3s/2s) | main switch | KA | 20/3 | ||||
earthing switch | 20/2 | |||||||
7 | Rated short-circuit making current | KA | 50 | 125 | ||||
8 | Rated closed circuit breaking current | A | 630 | |||||
9 | Rated active load breaking current | A | 630 | |||||
10 | Rated cable charging breaking current | A | 10 | |||||
12 | Rated transfer current | A | -- | 1700 | ||||
13 | Expected short-circuit breaking current | KA | -- | 50 | ||||
14 | Mechanical life | times | 2000 | |||||
15 | SF6 gas rated inflation pressure(20ºC gauge pressure) | MPa | 0.04 | |||||
16 | SF6 gas highest pressure(20ºC gauge pressure) | MPa | 0.045 | |||||
17 | Annual air leakage rate | %/Y | 0.5 | |||||
18 | Synchronicity of opening and closing | ms | ≤3 | |||||
17 | circuitresistance | μΩ | ≤100 | |||||
Fuse Rated Parameters | ||||||||
No. |
Rated Voltage (KV) |
Fuse Rated Current(A) |
Fuse Link Rated Curent (A) |
Rated Breaking Current(KA) |
||||
1 | 24 | 40 | 6.3,10,16,20,25,31.5,40 | 40 | ||||
2 | 00 | 506,380,100 | 40 | |||||
3 | 25 | 125 | 50 |