Prefabricated Substation Series

YB intelligent prefabricated substation

It is widely used in indoor and outdoor places such as urban power grid transformation, residential areas, high-rise buildings, industries and mines, hotels, shopping malls, airports, railways, oil fields, docks, highways, and temporary and temporary power facilities.

Model and its meaning



normal usage conditions
The altitude does not exceed 1000m;
Ambient temperature: -25℃~+40℃;
Relative humidity: the daily average value is not greater than 95%, and the monthly average value is not greater than 90%;
Installation location: a location without fire, explosion hazard, conductive dust, chemically corrosive gas and severe vibration. If the above conditions are exceeded, the user can negotiate with our company.
Functions and features
The trinity of high-voltage switchgear, transformers and low-voltage switchgear is highly complete;
High and low voltage protection is complete, operation is safe and reliable, and maintenance is simple;
It occupies less space, saves investment, has a short production cycle and is easy to move;
Wiring solutions are flexible and diverse;
Unique structure: The unique honeycomb structure double-layer (composite plate) shell is strong, insulated, heat dissipated, ventilated, beautiful, and has high protection level. The shell materials include stainless steel alloy, aluminum alloy, cold-rolled plate,
Color steel plate optional;
Various types: general type, villa type, compact type, etc.;
The high-voltage ring main unit can be equipped with a network automation terminal (FTU) to achieve reliable detection of short circuits and single-phase ground faults. It has the \"four remote\" function to facilitate distribution network automation upgrades.

transformer
The intelligent integrated substation uses low-loss, oil-immersed, fully sealed S9, S10, and S11 series transformers. It can also choose resin-insulated or NOMEX paper-insulated environmentally friendly dry-type transformers. The bottom can be equipped with a trolley so that the transformer can be easily accessed.

High voltage side
The high voltage of intelligent integrated substations is generally protected by a load switch and a fuse combination. After one phase of the fuse is blown, the three-phase linkage trip occurs. The load switch is available in compressed air, vacuum, sulfur hexafluoride and other types. It can be equipped with an electric operating mechanism to achieve automatic upgrades; 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.

Low voltage side
The main switch on the low-voltage side adopts a universal or intelligent circuit breaker for selective protection; the outlet switch adopts a new plastic case switch, which is small in size, has short arcing, and can reach 30 circuits; the intelligent automatic tracking reactive power compensation device has two switching methods, contactor and non-contact, for users to choose.

Implementation standards

Load switch technical parameters
serial number name unit FKN12-12 load switch FZN25-12 vacuum load switch
1 Rated voltage kV 10
2 Maximum working voltage kV 12
3 Rated frequency Hz 50
4 Rated current A 630
5 Rated breaking load current A 630
6 Thermal stable current (effective value) kAS 20/2 20/4
7 dynamic stable current kA 50 50
8 Short circuit closing current (peak value) kA 50 50
9 Number of interruptions at full load Second-rate 20 10000
10 Mechanical life Second-rate 2000 10000
11 1min power frequency withstand voltage (phase to phase and ground) kV 42 42
12 Lightning impulse voltage (relative and ground) kV 75 75

Phone

0086-13868724314
Phone