VSG-24 indoor HV vacuum circuit breaker is a 3- phase AC 50Hz 24kV indoor switch equipment
♦ Operating mechanism: spring operating mechanism;
♦ Pole type: assembled pole: embedded pole;
♦ phase-to-phase distance: 275mm;
Environmental Conditions
♦ Ambient temperature: -15°C 〜+40°C;
♦ Altitude: <1000m;
♦ Relative humidity: daily average <95%, monthly average <90%;
♦ Earthquake intensity: <8 level;
♦ Places without fire, explosion hazard, serious filthy, chemical corrosion, as well as intense vibration.
Main Technical Parameters
No |
Item |
Unit |
Value |
1 | Rated voltage |
kV |
24 |
2 | 1 min power frequency withstand voltage |
65 |
|
3 | Rated lightning impulse withstand voltage |
125 |
|
4 | Rated frequency | Hz |
50/60 |
5 | Rated current | / |
630, 1250, 1600, 2000, 2500,3150 |
6 | Rated short circuit breaking current |
kA |
25, 31.5 |
7 | Rated short circuit making current (peak) |
63, 80 |
|
8 | Rated short time withstand current |
25, 31.5 |
|
9 | Rated peak value withstand current |
63, 80 |
|
10 | Rated short circuit duration | S |
4 |
11 | Rated operating sequence |
O-0.3s-CO-180s-CO |
|
12 | Secondary circuit power frequency withstand voltage (1min) | V |
2000 |
13 | Rated single/back-to-back capacitor bank breaking current |
kA |
630 |
14 | Breaking time | ms |
20 〜50 |
1; | Opening time |
35-70 |
|
16 | Mechanical life |
times |
10000 |
17 |
Electrical life |
E2 class |
|
18 |
Power of energy storage motor |
W |
90 |
19 |
Control circuit power supply voltage | V |
AC/DC110/220 |
General Structure Drawing and Installation Size (unit: mm)
♦ Draw out type
Rated current (A) |
630 |
1250 |
1600 |
Rated short circuit breaking current (kA) |
25, 31.5 |
25, 31.5 |
31.5 |
Fixed contact size (mm) |
035 |
049 |
055 |
Phase-to-phase distance (mm) |
275 |