The GIS inflatable cabinet uses SF6 gas with excellent insulation and arc extinguishing performance as the insulation and arc extinguishing medium, and all high-voltage electrical components are sealed in a grounded metal cylinder. Compared with the traditional open high-voltage switchgear, the GIS high-voltage switchgear has a floor space It has the advantages of small size, all components sealed and free from environmental interference, high operating reliability, convenient operation, long overhaul period, small maintenance workload, fast installation, low operating cost, and no electromagnetic interference.
Arc extinguishing method
1. Direct-acting compressed air
2. Rotary compressed air
3. Gyromagnetic arc extinguishing
4. Arc extinguishing grid arc extinguishing
5. Quartz sand arc extinguishing
Protective device
On the basis of many years of application experience of domestic and foreign counterparts, combined with the actual characteristics of the domestic integrated automation system, the microcomputer protection device has developed a high-tech power automation product integrating protection, monitoring, control, communication and other functions. It is an intelligent switch Ideal electrical unit for cabinets. The product has a built-in protection library composed of more than 20 standard protection programs, which has a complete and powerful collection function of the voltage, current analog quantity and switch quantity of the primary equipment (current measurement is realized by the protection CT)
