There are two ways to have air insulation and fully closed inflatable cabinets in the ring network cabinet. Air insulation is to use a general SF6 load switch to be connected to a system by copper pows.
In addition to the power supply in and out of the power supply, the full -enclosed inflatable cabinet has a dedicated connection set, and the cabinet and the cabinet are connected in an intact gas cavity, which is filled with SF6 gases.
The inflatable cabinet is in the case of high pressure components such as homeline, circuit breaker, isolation switch, and transformers in a shell with lower pressure (0.1 ～ 0.5MPa) SF6 or other gases.
The inflatable cabinet brings many advantages, and its biggest advantage is that it is not vulnerable to the external environment: such as dew, filth, small animals and chemicals. Another advantage is that the use of compressed gas insulation (such as SF6, N, or air) is conducive to the small direction.
The inflatable cabinet has a good oil -free switch, especially the vacuum switch exemption or less maintenance, which greatly reduces the maintenance and maintenance workload.
The circular network cabinet is a set of high -voltage switch equipment in the steel plate metal cabinet or the electrical equipment that is made into an assembly -packed ring network power supply unit is a high -voltage switch cabinet.
In the meantime, the heart part is selected from the load switch and the fuse, which has a simple structure, small volume, low price, progressive power supply parameters and functions, and power supply safety.
Circle network cabinet, also known as HXGN, refers to the switch cabinet used in the circular distribution network. It is a promotion product separated by the switching cabinet. Because its structure is simple, the commonly used load switch and the fuse combination. The interception current is generally relying on the load switch of the contactor, and the interception of the short -circuit current depends on the fuse.
The switching cabinet can equipment various maintenance equipment, planning various maintenance: overcurrent, speed break, grounding, even differential, negative order, reverse power, and overlapping gate. The maintenance of the switch cabinet only needs a fuse.
The time for the emergence of ring cabinets is not long, but it has been widely used, which is mainly due to the newly launched industrial enterprises and institutions.
We can choose which one of the two can be used to meet our work and daily needs based on their uses.
