FZN25-12 indoor HV vacuum load break switch a 3-phase AC 50Hz 12kV indoor switch equipment..
♦ Operating mechanism: spring operating mechanism, manual type and electrical type available;
♦ Operation type: right operati on an d left operation;
♦ Operation direction: left operation, right operation;
♦ Application: indoor 12kv switchgear.
Environmental Conditions
♦ Ambient temperature: -25°C 〜+40°C;
♦ Altitude: <1000m (above sea level);
♦ Relative humidity: daily average <95%, monthly average <90%;
♦ Earthquake intensity: <8 level;
♦ Pollution grade: II;
♦ Installation place without fire, explosion, chemical corrosion and serious vibration.
Technical Parameters
♦ Main technical parameters
NO |
Item |
Unit |
FZN25-12LT 630-20 |
FZRN25-12D/T 200-31.5 |
|
1 |
Rated voltage | kV |
12 |
12 |
|
2 |
Rated frequency | Hz |
50 |
50 |
|
3 |
Rated current | A |
630 |
200 |
|
4 |
1min power frequency withstand voltage (Phase to earth, | Phase-to-earth, phase-to-phase | kV |
42 |
42 |
between poles, open contacts) | Isolating fracture |
48 |
48 |
||
5 |
Rated lightning impulse withstand voltage (Phase to | Phase-to-earth, phase-to-phase | kV |
75 |
75 |
earth, between poles, open contacts) | Isolating fracture |
85 |
85 |
||
6 |
Rated short time withstand current (thermal stability current) | Load break switch | kA |
20 |
|
7 |
Rated short circuit duration
( thermal stability time) |
Load break switch | s |
4 |
|
8 |
Rated short circuit making current (peak) | kA |
50 |
||
9 |
Rated active load breaking current | A |
630 |
||
10 | Rated loop breaking current |
630 |
|||
11 | Rated cable charging current |
10 |
|||
12 | Rated no-load transformer capacity | kVA |
1600 |
1600 |
|
13 | Rated short circuit breaking current (limit current fuse) | kA | 31.5 | ||
14 | Rated breaking transfer current | A |
2000 |
||
15 | Fuse model |
SDLAJ-12 SFLZJ-12 |
|||
16 | Striker output energy | J |
2-5 |
NO |
Item |
Unit |
FZN25-12D/T 630-20 |
FZRN25-12D/T 200-31.5 |
17 | Auxiliary circuit rated voltage |
V |
^110 ^220 |
^110 ^220 |
18 | Earth switch rated short time withstand current |
kA |
20 |
20 |
19 | Earth switch rated peak short circuit duration | S |
2 |
2 |
20 | Earth switch rated peak withstand current | kA |
50 |
50 |
21 | Rated short making current | kA |
50 |
80(prospective peak value) |
22 | Mechanical life |
times |
10000 |
10000 |
♦ Mechanical property
NO |
Item |
Unit |
Value |
|
FZN25-12 D/ T630 20 |
FZRN25-12 D/T200-31.5 |
|||
1 | Air clearance between charged parts and to earth | mm |
>125 |
|
2 | Conducting tube insert into fixed contact holder depth | mm |
>18 |
|
3 | Vacuum interrupter open distance | mm |
600+1 |
|
4 | Vacuum interrupter contact spring compression length | mm |
20+1 |
|
5 | Vacuum interrupter average closing speed | m/s |
0.6±0.2 |
|
6 | Vacuum interrupter average opening speed | m/s |
1.0±0.2 |
|
7 | Closing bouncing time | ms |
<2 |
|
8 | Three phase closing and opening synchronism | ms |
<3 |
|
9 | Main circuit resistance | rQ |
<150 |
<300 |
10 | Manual opera+’on maximum torque | n.m |
<160 |
|
11 | Fuse trigger opening time | ms |
- |
30-40 |
12 | Release trigger opening time | ms |
40-45 |
♦ Energy storage motor parameters
Model |
Rated voltage V |
Rated current A |
Rated power W |
Normal working voltage range |
LLZY-CJ01B8 |
AC/DC220 |
0.7 |
70 |
85%-110% rated |
66ZY-CJ028 |
AC/DC110 |
1.5 |
voltage |
General Structure Drawing and Installation Size (unit: mm)
♦ FZRN25 right operation
♦ FZRN25 left operation
♦ FZN25 right operation
♦ FZN25 left operation