TBBZ high voltage reactive power automatic compensation device
HXGN15-12 box type fixed AC metal enclosed switchgear
KYN28A-12 armored removable enclosed switchgear
SHGT-12 Solid Fully Insulated Enclosed Ring Network Switchgear
GZD (W) (microcomputer control) DC power supply cabinet
XGN ☐ - 12 intelligent solid insulation cabinet
SHSRM16-12 Inflatable (totally enclosed) ring network cabinet
HXGN17-12 box type fixed AC metal enclosed switchgear
XGN2-12 box type fixed metal enclosed switchgear
XGN66-12 (Z) fixed enclosed switchgear
KYN28A-24 armored removable AC metal enclosed switchgear
KYN61-40.5 (Z) armored removable AC metal enclosed switchgear
XL-21 low-voltage power distribution cabinet
MNS low-voltage draw out switchgear
GCS low-voltage draw out switchgear
GCKLV withdrawable switchgear
GGD low-voltage switchgear
GGJ Low voltage reactive power intelligent compensation device
JXM transparent anti-theft city network box
SHF1-Q-S low-voltage cable junction box (SMC)
SHF1-Q-S/L low-voltage cable junction box (SMC)
JP integrated distribution box (compensation/control/terminal/lighting)
LW3-12 primary and secondary fusion SF6 circuit breaker
ZW43-12 (G) outdoor high-voltage vacuum circuit breaker
ZW32-40.5 outdoor high-voltage AC vacuum circuit breaker
ZW32M (T) - 12 outdoor high-voltage vacuum circuit breaker primary and secondary fusion (with directional judgment)
FLN36-12 indoor high-voltage SF6 load switch
ZN63 (VS1) - 12 indoor high-voltage vacuum circuit breaker/handcart type
LW8-40.5 Outdoor High Voltage Sulfur Hexafluoride AC Circuit Breaker
ZW32-12 Permanent Magnet Outdoor Vacuum Circuit Breaker
ZN85-40.5 outdoor high-voltage vacuum circuit breaker
FKN12A-12/FKRN12A-12 Series Compressor Load Switch Fuse Combination
FZN25-12 Series Vacuum Load Switch
FZW28-12 Series Outdoor Dividing Vacuum Load Switch
ZW8-12/630-20 outdoor high-voltage vacuum circuit breaker
ZW20-12F series outdoor high-voltage AC boundary vacuum circuit breaker
ZW7-40.5 Outdoor Vacuum Circuit Breaker
SHV-12/630A gas charging cabinet circuit breaker (with isolation belt grounding)
SHV-12/630A inflatable cabinet router (without isolation and grounding)
SHC-12KV-630A load switch
SHG-12D 630A gas charging cabinet isolating switch
SHSV-12T (D) 630A-25KA solid insulation movement
Lower earthing switch
In order to meet the needs of small size, small footprint, good performance and high reliability, various combined electrical appliances and complete sets of electrical appliances have appeared. In addition to switch cabinets, gas-filled cabinets have multi-layer inner grids, load switch fuse combination devices, high voltage corner fuse combination devices (FC cabinet) load switches, fuse and arrester combinations, as well as various combinations of arresters, isolation switches, voltage and current transformers, etc., it has developed advanced types of combined complete sets, such as gas-filled cabinets (C-GIS), fully enclosed combined electrical equipment (GIS), and whole substations, such as prefabricated substations (including transformers) box-type transformers and high and low voltage electrical equipment).
Due to the rapid growth of electricity consumption in modern life, the increase of industrial and agricultural electricity consumption, and the formation of high-voltage and large-capacity power grids, the requirements for the capacity and various parameters of inflatable cabinets are rapidly increasing. At present, the rated current of the main power transmission and distribution equipment has increased from 1000A to 2500A, to 4000A, and the short-circuit current has increased from 16~20KA to 31.5~50kA, or even higher. The number of single-pole circuit breakers for 550kV circuit breakers has been reduced from 4 to 2, and the development of single-pole circuit breakers is accelerating. If the main transmission and distribution voltage in China cannot increase rapidly, then the inflatable cabinet of large-capacity, high-parameter demand trends in China's power grid will not cool down (higher transmission voltage can unravel some of the ring network's subordinate distribution voltage reductions) short-circuit current of the grid).
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