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
The domestic application of high-voltage electrical in coal mine systems is still very small, especially for 6kV fans, hoisting winches and water pumps. High-voltage electrical is almost not used. They are all fixed equipment, and the motor power is large, reaching more than 300kW. Huge power saving potential can be tapped. Even if other means are used to carry out energy-saving technological transformation, the effect of using high-voltage electrical is not the best, and high-voltage electric motors in coal mines have not been widely used so far. The reasons for this situation are: first, the withstand voltage of power electronic devices is not high (generally only 1.2kV), and corresponding high-voltage electrical products have not been launched in China; second, the reliability is not too high. These continuously operating equipment in coal mines must have high security.
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