Model Meaning
Functions and Features
◆High-voltage switchgear, transformer, and low-voltage switchgear are integrated into one, and the complete set is strong;
◆Perfect high and low voltage protection, safe and reliable operation and simple maintenance;
◆Small land occupation, low investment, short production cycle, relocation
◆The wiring scheme is flexible and diverse;
Unique structure: the unique honeycomb structure double-layer (composite plate) shell is firm, heat insulation, heat dissipation and ventilation, beautiful appearance, high protection level, the shell materials are stainless steel alloy, aluminum alloy, cold-rolled plate, color steel plate optional;
◆Various types: general type, villa type, compact type and other styles;
◆The network automation terminal (FTU) can be installed in the high-voltage ring network cabinet to realize reliable detection of short circuit and single-phase grounding fault.
Normal Use Conditions
◆The altitude does not exceed 1000m;
◆Ambient temperature: -25℃~+40℃;
◆Relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%;
◆Installation site: There is no fire, explosion hazard, conductive dust, chemical corrosive gas and violent vibration. If the above conditions are exceeded, the user can negotiate with our company.
Transformer
The intelligent integrated substation adopts low-loss, oil-immersed, fully-sealed S9, S10, and S11 series transformers, as well as resin-insulated or NOMEX paper-insulated environmentally friendly dry-type transformers.
High Pressure Side
The high voltage of the intelligent integrated substation is generally protected by a load switch-fuse combination electrical appliance. After one phase of the fuse is blown, the three-phase linkage trips. The fuse is a high-voltage current-limiting fuse with an impactor, which has reliable action and large breaking capacity. The main technical parameters are shown in the table below. For transformers above 800kVA, vacuum circuit breakers such as QCE4, QCE2, and QCE1 can be used for protection.
Low Pressure Side
The main switch on the low-voltage side adopts a universal or intelligent circuit breaker for selective protection; the outgoing switch adopts a new type of plastic case switch, which is small in size and short in arcing, and can reach up to 30 circuits; intelligent automatic tracking reactive power compensation device with contactor There are two switching methods of contactless and non-contact for users to choose.
