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FZRN25-12/24D Indoor (connected) high voltage vacuum switch / fuse combiner
Published in2018-08-04
4645 ViewsDetailed description
FZRN25-24D indoor high voltage vacuum load switch
1.Epoxy resin and silicone rubber vacuum load switch
2. High strength,moisture-proof.anti-condensation vacuum load switch
3. Suitable forhot and humid place vacuum load switch
1. Prodcut Overview
1.1.Function:FZRN25 series indoor AC high voltage vacuum load break switch is a controlling and protecting device for three phases AC 50HZ 24KVelectrical power distribution system. Such vacuum load break switches are widely used in industrial and mining enterprises and power stations of big urban office buildings.
1.2.Standards:IEC 62271-105
1.3.Parameters:Rated voltage: 24kV.
Rated current: 630A.
Rated frequency: AC 50HZ.
2.Technical Data
|
Item |
Unit |
Data |
||
|
FZRN25-24D /T630-20 |
FZRN25-24 D/125-31.5 |
|||
|
Rated voltage |
kV |
24 |
||
|
Rated frequency |
Hz |
50 |
||
|
Rated current |
A |
630 |
125 |
|
|
Rated insulation level |
1min power frequency withstand voltage |
kV |
arc-extinguishing chamber clearance: 65, between earth and pole: 65, isolation clearance: 79 |
|
|
Rated lightning impulse withstand voltage(peak value) |
kV |
between earth and pole: 125, isolation clearance: 145 |
||
|
Rated short time withstanding current |
kA |
20 |
|
|
|
Rated short-circuit duration time |
S |
4 |
/ |
|
|
Rated Peak withstand current |
kA |
50 |
/ |
|
|
Rated breaking current |
Power load breaking current |
A |
630 |
/ |
|
Close loop breaking current |
A |
630 |
/ |
|
|
Breaking cable charge current |
A |
31.5 |
/ |
|
|
Breaking no-load transformer capacity |
kVA |
1250 |
1250 |
|
|
Rated short-circuit breaking current |
kA |
/ |
31.5 |
|
|
Short-circuit breaking current |
A |
/ |
2000 |
|
|
Fuse type |
|
/ |
SDLAJ-12,SFLAJ-12 |
|
|
Shocking input energy |
J |
/ |
3-5 |
|
|
Rated short-circuit making current |
kA |
50 |
80(expected) |
|
|
Earthing switch rated withstand current(peak) |
kA |
50 |
50 |
|
|
Earthing switch 4S rated short-time withstand current |
kA |
20 |
20 |
|
|
Auxiliary circuit rated voltage |
V |
220:110 |
220:110 |
|
|
Mechanical life(grade M2) |
times |
20000 |
||
3.Dimension and mounting
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