Outdoor high voltage vacuum circuit breaker
Outdoor high voltage vacuum circuit breaker
Overview
AB-3S-12 series of circuit breakers is the company’s comprehensive domestic and foreign advanced technology, Bocaizhongzhijia long, using a new design concept, far from high-tech means, the latest development of a new generation of intelligent vacuum circuit breaker. The product can be used as 35kv substation main transformer 10kv side and 10kv outlet switch, can also be used as a distribution network on the column switch, and the company’s production is a combination of various control units can be easily achieved control, protection, Measurement, communication, is to achieve the automation and miniaturization of the preferred equipment.
Model meaning
Conditions of use
1. Working environment temperature: not more than 40 ℃; daily average temperature of not more than 35; minimum ambient air temperature of -25 ;.
2. Air relative humidity: daily average of not more than 95%, the monthly average of not more than 90; water vapor pressure daily average of not more than 2.2kPa;
3. Monthly average is not more than 1.8 kPa;
4. Altitude: no more than 2000m;
5. The surroundings are not significantly contaminated by dust, smoke, corrosive and / or flammable gases, steam or salt fog;
6. The vibration or ground from outside the switchgear and control equipment is negligible;
7. In the secondary system, the amplitude of the induced electromagnetic interference does not exceed 1.6kv.
Main technical parameters
Serial number | name | unit | data | |
1 | Rated voltage | KV | 12 | |
2 | Rated insulation level | 1min power frequency withstand voltage (RMS) | KV | 42 |
Lightning impulse withstand voltage (peak) | KV | 75 | ||
3 | Rated frequency | KV | 50 | |
4 | Rated current | A | 630 1250 | |
5 | Rated short circuit breaking current | KA | 20 | |
6 | Rated short-circuit closing current (peak) | KA | 50 | |
7 | Rated operating sequence | Points t1 (0.3s) – points t2 (3s) – points t2 (3s) – joint points – lock | ||
8 | Thermal stability current (4S) | KA | 20 | |
9 | Dynamic current (peak) | KA | 50 | |
10 | Rated short circuit current breaking times | Times | 30 | |
11 | CT ratio | 30-1250/1(5) | ||
12 | Working power supply voltage | V | -220(-110) | |
13 | Creepage distance | ≥ 31 | ||
14 | Number of machines | Times | 10000 | |
15 | weight | kg | 90+40 |
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