YB(ZBW27)-12/0.4(F·R) type outdoor pre-fabricated substation (European)
Product Introduction:
Widely used in urban power grid reconstruction, residential areas, high-rise buildings, industrial and mining, hotels, shopping malls, airports, railways, oil fields, wharfs, expressways and temporary power facilities….
Function and characteristics
◇ High-voltage switchgear, transformer, low-voltage switchgear composed of a trinity, the complete set of performance is strong;
◇ Perfect high and low voltage protection, safe and reliable operation, simple maintenance;
◇ Small footprint, investment less, short production cycle, easy to move;
◇ Flexible wiring scheme;
◇ Unique structure: unique honeycomb structure double layer (composite board) shell is strong, heat insulation and heat dissipation ventilation, beautiful, high protection level, shell materials are stainless steel alloy, aluminum alloy, cold rolled plate, color steel plate optional;
◇ Various types: universal type, villa type, compact and other styles;
◇ High voltage ring network cabinet can be assembled network automation terminal (FTU) to realize the reliable detection of short circuit and single-phase grounding fault, with “four remote” function, easy to upgrade the distribution network automation.
Normal service condition
◇ 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: no fire, explosion danger, conductive dust, chemical corrosive gas and violent vibration of the place, if beyond the above conditions, users can negotiate with our company.
Transformer
Intelligent integrated substation selection of 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 voltage side
Intelligent integrated substation high voltage generally adopts load switch and fuse combination electrical protection, fuse- phase fuse, three-phase linkage trip, load switch has pressure type, vacuum, sulfur hexafluoride and other types of optional, can be equipped with electric operating mechanism, automation upgrade: Fuse is 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, vacuum circuit breaker protection such as QCE4, QCE2, QCE1 can be selected.
Low voltage side
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 contactor and contactless two switching modes for users to choose.
Load switch technical parameters
| Item | Name | Unit | FKN12-12 Load switch | FZN25-12 Vacuum load switch |
| 1 | Rated voltage | KV | 10 | |
| 2 | Max.operating 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) | 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 | 次 | 20 | 10000 |
| 10 | Mechanical life | 次 | 2000 | 10000 |
| 11 | 1min power frequency withstand voltage (phase to phase and ground) | KV | 42 | 42 |
| 12 | Lightning impulse voltage | KV | 75 | 75 |
Technical parameters of high voltage fuse
| Item | Rated voltage( kV ) | Breaking current( A ) | Breaking current( kA ) | Fuse rated current（ A ) | |
| English style | Domestic style | ||||
| SDL J | 12 | 40 | 31.5 | 6.3 10 16 20 25 31.5 40 | |
| SFJ J | XRNT -12 | 12 | 100 | 31.5 | 50 63 71 80 100 |
| SKL J | 12 | 125 | 31.5 | 125 | |
Note: Determined by whether an impactor is installed, N is no firing pin and A is with firing pin.
| Item | Tripping style | Tripping rated current A | Switching ability
KA (AC380V |
| DW15-630 | 315,400,630 | 40 | |
| DW15-1000 | 630,800,1000 | 50 | |
| DW15-1600 | Thermo-electromagnetic or electronic type | 1600 | 50 |
| DW15-2500 | 1600,2000,2500 | 60 | |
| CW1-2000 | 630.800,1000,1250,1600,2000 | 65(80) | |
| CW1-3200 | Intelligent | 2000,2500,3200 | 100 |
Installation, use and maintenance
In addition to the requirements of the power department in terms of installation, acceptance, handover test, operation and maintenance, intelligent integrated substation should pay attention to the following matters:
When receiving the goods, the user should carefully check according to the relevant regulations, and the products that are not installed immediately should be stored in an appropriate place according to the normal conditions of use.
The product should be lifted by the bottom of the special spreader, as shown in Figure 3.
The product is placed horizontally on a pre-made basis, and then the gap between the product base and the foundation is sealed with cement slurry to prevent rain from entering the cable room, and the high and low voltage cables are connected through the bottom sealing plates of the high and low voltage chambers.
The product should be reliably grounded after installation; The two main ground terminals on the station base channel,
The neutral point of the transformer, the shell, and the pile head under the arrester should be grounded separately by the installation department. All grounding devices should share one grounding device with a grounding resistance of less than 4 ohms. At least two grounding leads should be led from the grounding network to the product.
After the product is installed or repaired, the following items should be inspected and tested before being put into operation:
Whether the substation is clean;
Whether the operating mechanism is flexible;
Whether the main electrical appliances are flexible and reliable;
Whether the electrical auxiliary contact is reliable and accurate;
Whether the meter and relay operation are accurate;
