FLRN48-12D type SF6 Load Switch
The FLRN48-12D type SF6 Load Switch is a load switch product independently developed by Kexun in China factory in 2008, which is applied to XGN15-12SF6 ring main unit. It has high economy, safety and reliability, simple structure, flexible operation, reliable interlocking and convenient installation.
Model: FLRN48-12D
Brand：KEXR
Model: FLRN48-12D
Brand：KEXR
● Model meaning
● Structure and principle
The main circuit and grounding circuit of The FLRN48-12D type SF6 Load Switch are sealed in an insulating shell made of epoxy resin by APGI process, which has the advantages of good insulation performance and anti-pollution environment. The insulating shell is made up of an upper insulating cover and a lower insulating cover, which is filled with SF6 gas with a relative pressure of 0.4bar. The lower insulating cover adopts local thin-walled and thick explosion-proof membrane measures, so as to ensure that in case of accident, the pressure of overpressure SF6 gas drops after breaking through the safety film, and the gas is directly sprayed to the back of the cabinet to ensure personal safety.
◆ Meet the standard
IEC60265、IEC62271、GB3804、GB16926 etc..
● Using conditions
◆Ambient temperature: Temperature around of The FLRN48-12D type SF6 load switch
Should be -40~40℃
◆Humidity: the maximum average relative humidity is ≤ 95% per day and ≤ 100% per month.
◆Altitude:The FLRN48-12D type SF6 load switch shall be installed at an altitude below
2000m.
◆Seismic capacity: ≤8
◆The surrounding air should be free from obvious pollution such as corrosive, combustible gas and water vapor, and there should be no frequent violent vibration.
● Technical parameters of The FLRN48-12D type SF6 Load Switch
|
Item |
Unit |
FLRN36-12D/T630-20 type |
FLRN36-12D/100-50 type |
|
Rated voltage |
KV |
12 |
12 |
|
Rated frequency |
HZ |
50 |
50 |
|
Rated current |
A |
630 |
100 |
|
1min power frequency withstand voltage interphase/fracture |
KV |
42/48 |
42/48 |
|
Lightning impulse withstand voltage interphase/fracture |
KV |
75/85 |
75/85 |
|
5 Min 0gauge Rated power frequency withstand voltage |
KV |
24 |
24 |
|
Rated thermal stability current 3 seconds /2 seconds |
KA |
20/20 |
20/20 |
|
Rated dynamic stable current（peak） |
KA |
50/50 |
50/50 |
|
Rated short-circuit closing current |
KA |
50/50 |
125/50 |
|
Rated closed-loop interrupting current |
A |
630 |
|
|
Rated active load interrupting current |
A |
630 |
|
|
Rated cable charging breaking current |
A |
10 |
10 |
|
Rated short-circuit breaking current |
KA |
|
50 |
|
Rated transfer current |
A |
|
1700 |
|
Fuse type |
|
|
XRNT-12KV/100A |
|
Fuse impact throws energy |
J |
|
1±0.5 |
|
Mechanical life |
Time |
5000/2000 |
3000/2000 |
|
Distance between charged bodies and relative air insulation |
mm |
≥125 |
≥125 |
|
SF6 gas pressure |
bar |
0.4 |
0.4 |
|
Synchronization of opening and closing |
ms |
≤2 |
≤2 |
|
Main circuit resistance |
μΩ |
≤65 |
≤65 |
Hot Tags: FLRN48-12D type SF6 Load Switch
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Contact Info
-
Address
No.228 Weishiqi Road, Yueqing Economic Development Zone, Wenzhou City, Zhejiang Province, China
-
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