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VSG-12 indoor HV vacuum circuit breaker is a 3-phase AC 50Hz 12kV indoor switch equipment.
♦ Installation way: withdrawable type, fixed type;
♦ Operating mechanism: spring operating mechanism;
♦ Pole type: assembled pole, embedded pole;
♦ Phase-to-phase distance: 150mm, 210mm, 275mm;
Environmental Conditions
♦ Ambient temperature: -15r~+40r;
♦ Altitude:
♦ Relative humidity: daily average ;
♦ Earthquake intensity:
♦ 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 | 12 |
2 | 1 min power frequency withstand voltage | 42 | |
3 | Rated lightning impulse withstand voltage | 75 | |
4 | Rated frequency | Hz | 50 |
5 | Rated current | A | 630, 1250, 1600, 2000, 2500, 3150 |
6 | Rated short circuit breaking current | kA | 25, 31.5, 40 |
7 | Rated short time withstand current | 25, 31.5, 40 | |
8 | Rated short circuit duration | s | 4 |
9 | Rated peak value withstand current | kA | 63, 80, 100 |
10 | Rated short circuit making current | 63, 80, 100 | |
11 | Secondary circuit power frequency withstand voltage (Imin) | IN | 2000 |
12 | Rated single / back-to-back capacitor bank breaking current | A | 630/400 (800/400 for 40kA) |
Opening time (rated voltage) | ms | 20-50 | |
14 | Closing time (rated voltage) | ms | 35-70 |
15 | Mechanical life | Times | 10000 |
16 | Electrical life | E2 class | |
17 | Moving and fixed contacts cumulative allowed wear thickness | mm | 3 |
18 | Rated closing operating voltage | IN | AC/DC110/220 |
19 | Rated opening operating voltage |
No | Item | Unit | Value |
20 | Motor rated power | IN | 90 |
twenty one | Charging time | s | ≤15 |
twenty two | Clearance between open contacts | mm | 9±1 |
twenty three | Over travel | mm | 3±1 |
twenty four | Contact closing bounce time | ms | ≤2 |
25 | Three phase opening and closing asynchronism | ms | ≤2 |
26 | Average opening speed | m/s | 0.9-1.7 |
27 | Average closing speed | m/s | 0.6~1.0 |
28 | Main conductive circuit resistance | mΩ | ≤45 (630A) ≤35(1250-2000A) ≤25(above 2500A) |
29 | Closing contact pressure of the contacts | N | 3100-3700 (25-31.5kA) 4400-4800 (40kA) |
30 | Rated operating sequence | O-0.3s-CO-180s-CO |
Note: when current is 4000A, need forced air cooling.
General Structure Drawing and Installation Size (unit: mm)
♦Draw out type (assembled pole)
cabinet width | rated current (A) | rated short circuit breaking current (kA) | P | H | A | B | C | D | AND | F | G | J | K | L | M | N | R | S | T |
650 | 630 | 20'31.5 | 150 | 275 | 490 | 502 | 492 | 500 | 433 | 626 | 035 | 280 | 598 | 76 | 78 | 637 | 501 | 202 | 40 |
650 | 12j0 | 20-31.5 | 150 | 275 | 490 | 502 | 492 | 500 | 433 | 626 | 049 | 280 | 598 | 76 | 78 | 637 | 501 | 202 | 40 |
800 | 630 | 20-31.5 | 210 | 275 | 638 | 652 | 640 | 650 | 433 | 626 | 035 | 280 | 598 | 76 | 78 | 637 | 501 | 277 | 40 |
800 | 1250 | 20-40 | 210 | 275 | 638 | 652 | 640 | 650 | 433 | 626 | 049 | 280 | 598 | 76 | 78 | 637 | 501 | 277 | 40 |
800 | 1600 | 31.5-40 | 210 | 275 | 638 | 652 | 640 | 650 | 433 | 626 | 055 | 280 | 598 | 76 | 78 | 637 | 501 | 277 | 40 |
WOO | 030 | 20-31.5 | 275 | 275 | 838 | 852 | 838 | 850 | 433 | 626 | 035 | 280 | 598 | 76 | 78 | 637 | 501 | 377 | 40 |
1000 | 1250 | 20-40 | 275 | 275 | 838 | 852 | 838 | 850 | 433 | 626 | 049 | 280 | 598 | 76 | 78 | 637 | 501 | 377 | 40 |
1000 | 1600 | 31.5-40 | 275 | 275 | 838 | 852 | 838 | 850 | 433 | 626 | 055 | 280 | 598 | 76 | 78 | 637 | 501 | 377 | 40 |
1000 | 1600-2000 | 31.5-40 | 310 | 310 | 838 | 852 | 838 | 850 | 361 | 680 | 079 | 295 | 586 | 77 | 88 | 698 | 529 | 377 | 0 |
1000 | 2500-4000 | 31.5-40 | 310 | 310 | 838 | 852 | 838 | 850 | 361 | 680 | 0109 | 295 | 586 | 77 | 88 | 698 | 529 | 377 | 0 |
♦ Draw out type (embedded pole)
G | J | K | L | M | N | R | S | T |
0)35 | 280 | 598 | 76 | 78 | 637 | 501 | 202 | 40 |
①49 | 280 | 598 | 76 | 78 | 637 | 501 | 202 | 40 |
035 | 280 | 598 | 76 | 78 | 637 | 501 | 277 | 40 |
①49 | 280 | 598 | 76 | 78 | 637 | 501 | 277 | 40 |
(D79 | 295 | 586 | 77 | 88 | 698 | 509 | 377 | 0 |
0109 | 295 | 586 | 77 | 88 | 698 | 509 | 377 | 0 |
♦Fixed type (assembled pole)
A | B | C | AND | F | G1 G2 | J | K |
520 | 520 | 588 | 580 | 72 | I | 237 | 462 |
720 | 720 | 770 | 580 | 72 | I | 237 | 462 |
650 | 720 | 770 | 632 | 85 | II | 252 | 472 |
♦ Fixed type (embedded pole)
we can offer high quality products, competitive price and best customer service. we offer China Vsg-12 Indoor High Voltage Vacuum Circuit Breaker, For more data, please send email to us. We’re searching forwards the opportunity to assistance you.
ProfessionalChina Vacuum Circuit Breakerand Vcb manufacturer, We have been increasingly expanding our international market share based on quality merchandise, excellent service, reasonable price and timely delivery. Remember to contact us at any time for more information.