Overview：
AB-3S-12 series circuit breaker is a column-mounted intelligent vacuum circuit breaker developed by our company, which integrates domestic and foreign technologies, draws on the strengths of others, adopts new design concepts, and uses scientific and technological means far away. This product can be used as a switch on the 10kV side of the main transformer of 35kV substation and 10kV outgoing line, and can also be used as a switch on the column of the distribution network. Combined with various control units produced by our company, it can easily realize control, protection, Measurement and communication are equipment for realizing distribution network automation and miniaturization.
Structural features of AB-3S-12 series circuit breakers:
◆It adopts magnetic actuation (permanent magnet) mechanism, which greatly reduces the number of components, greatly reduces the closing power, is stable and reliable, and does not require regular maintenance. Ensure the successful completion of the recloser operation sequence (t1-0.3s closing and opening t2-3s closing and opening t3--3s closing and opening-blocking);
◆Using outdoor epoxy as the outer insulating material, light weight, long life, good weather resistance, no oil, no SF6, in line with environmental protection requirements;
◆Adopt DSP chip, which integrates control, protection, measurement and communication, so that the system has advanced design and super functions;
◆Using comprehensive sensor technology to realize online monitoring of the device;
◆Using synchronous closing technology to realize synchronous closing of circuit breakers, effectively suppressing operating overvoltage and inrush current;
◆Flexible communication mode, support general wireless packet service (GPRS), support short messages in Chinese and English;
◆Up to 128 sampling points per cycle and fast FFT transformation, providing high-speed and high-precision data from fundamental wave to 19th harmonic for line measurement and protection;
◆With fast protection function, the distribution network can automatically isolate and restore power supply without the cooperation of the main station, which greatly improves the reliability of power supply;
◆On-line judgment of single-phase grounding fault can be realized without additional configuration, and alarm or tripping can be given as specified;
◆Using temperature measurement and temperature correction technology, so that the device can achieve high accuracy under various temperature conditions;
◆Specially designed power management module can provide automatic conversion of 2 auxiliary power input lines (AC110V or AC220V), monitor the battery and control the battery charging voltage and charging and discharging power;
◆ Friendly interface, full Chinese display, easy to set;
◆Made of all stainless steel, no rust, truly maintenance-free.
