Normal application condition The altitude does not exceed 3000m; Ambient temperature: -25 ~+40 ; Relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%; Installation site No fire, explosion danger, conductive dust, chemical corrosive gas and violent vibration of the place, if beyond the above conditions, the user can negotiate with our company. Transformer Intelligent integrated substation select low loss oil immersed, fully sealed S9, S10, S11 series transformers, can also choose resin insulation or NOMEX paper insulation environmentally friendly dry transformer, the bottom can be equipped with a car, the transformer can be convenient access. High Pressure Side The high voltage of intelligent integrated substation is generally protected by the combination of load switch and fuse after the fuse is blown, the three-phase linkage trip, the load switch has pressure type, vacuum, sulfur hexafluoride and other types of optional, can be equipped with electric operating mechanism, to achieve automatic upgrading; The fuse is a high voltage current limiting fuse with impactor, reliable operation, large breaking capacity, the main technical parameters are shown in the following table. For transformers above 800kVA, QCE4,QCE2,QCE1 and other vacuum circuit breaker protection can be selected. Low Pressure Side The low voltage side main switch adopts universal or intelligent circuit breaker. Selective protection; The new type of plastic-case switch is selected as the outlet switch, which has small volume and short fly-arc, and can reach up to 30 circuits. Intelligent automatic tracking reactive power compensation device, there are contact and contactless two switching modes for users to choose. Enforce standards This product meets the following standards: GB/T17467-1998 High voltage/low voltage pre-installed substation DL/T537-93 6-35kV Box-type substation ordering technical conditions Load switch technical parameters NO. NAME UNIT FN12-12Loadswitch FZM12-12 Vacuum load switch 1 Rated voltage KV 10 2 Maximum operating voltage KV 12 3 Rated frequency Hz 50 4 Rated current A 630 5 Rated breaking load current A 630 6 Heat stable current(Effective value) KA/S 20/2 20/4 7 Dynamic stable current KA 50 50 8 Short-circuit closing current (peak) KA 50 50 9 Full load breaking times Times 20 10000 10 Mechanical life Times 2000 10000 11 1min power frequency withstand voltage (phase to phase and ground) KV 42 42 12 Lightning impulse voltage (relative and to ground) KV 75 75
