YB27-12 American style prefabricated box type substation
Short Description:
summary:This product is developed based on the actual situation in China. The entire product has the characteristics of small size, easy installation and maintenance, low noise, low loss, anti-theft, strong overload capacity, and full protection. Suitable for new residential areas, green belts, park …
Product details
summary:
This product is developed based on the actual situation in China. The entire product has the characteristics of small size, easy installation and maintenance, low noise, low loss, anti-theft, strong overload capacity, and full protection. Suitable for new residential areas, green belts, parks, stations, hotels, construction sites, airports, and other places.
YB27-12 series American prefabricated box type substation is suitable for 10kV ring network power supply, dual power supply or terminal power supply system, as a substation, metering, compensation control and protection device.
This product complies with the following standards: GB/T17467-1998 "High Voltage and Low Voltage Prefabricated Substations", DL/T537-93 "Technical Conditions for Ordering 6-35kV Box type Substations"
Function and Features:
◆ Fully insulated, fully sealed, maintenance free, and reliable to ensure personal safety;
◆ Compact structure, with a volume only 1/3-1/5 of the same capacity European transformer, and low height;
A split box structure can be used to avoid contamination of oil in the transformer oil tank;
The high-voltage side adopts dual fuse full range protection, greatly reducing costs:
◆ It can be used for ring network or terminal, and the cable head can be urgently plugged and unplugged when the load current is 200A;
The box is made of honeycomb double layered composite board, which has the functions of insulation and heat dissipation;
Install an electronic phase loss protector on the low voltage side, which can quickly disconnect the main switch when abnormal voltage occurs in the system;
High voltage side oil immersed load switches or SF6 load switches can be electrically upgraded, laying the foundation for achieving distribution network automation.
Adopt oil immersed S9 or S11 series transformers with better performance.
Normal usage conditions:
◆ Altitude not exceeding 1000m;
◆ Environmental temperature: -35 ℃~+40 ℃;
Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%;
Installation location: A place without fire, explosion hazards, chemical corrosive gases, and good ventilation, with a ground inclination angle of no more than 3 °.
Technical parameters of load switch:
Technical parameter table of prefabricated substation
Serial number | name | unit | Technical Parameter |
1 | rated voltage | kV | 10/0.4(High pressure/low pressure) |
2 | Capping working voltage | kV | 12(High voltage side) |
3 | Rated frequency | Hz | 50 |
4 | Rated capacity | kVA | 50-1600 |
5 | 1Minute power frequency withstand voltage | kV | 35 |
6 | lightning impulse voltage | kV | 75 |
7 | Cooling method | ONAN | |
8 | High voltage backup fuse breaking current | kA | 50 |
9 | Plug in fuse for breaking current | kA | 2.5 |
10 | ambient temperature | ℃ | -35-+40 |
11 | Coil allows temperature rise | ℃ | 65 |
12 | No load voltage regulation | ±5％或±2&x2.5％ |
Technical parameter table of transformer
Adopting the innovative S9 series transformer body, it has low loss, good overload capacity, strong short-circuit resistance, and all fasteners have undergone anti loosening treatment, eliminating the need for hanging cores; Better performing ones can also be selected
S10 series and S11 series transformers
capacity | voltagev kV | Connection group label
| No load current% | No load lossKW | Resist voltage% | Load lossW | ||||||||
kVA | high pressure | low pressure | S9 S10 S11 | S9 | S10 | S11 | S9 | S10 | S11 | |||||
50 | 10±5% 或±2x2.5%
| 0.4
| Dyn11或Yyn0
| 2.0 | 1.9 | 0.75 | 0.17 | 0.15 | 0.12 | 4.0
| 0.87 | 0.83 | 0.87 | |
63 | 1.9 | 1.8 | 0.7 | 0.2 | 0.18 | 0.14 | 1.04 | 0.99 | 1.04 | |||||
80 | 1.9 | 1.7 | 0.7 | 0.25 | 0.22 | 0.175 | 1.25 | 1.2 | 1.25 | |||||
100 | 1.8 | 1.55 | 0.65 | 0.29 | 0.26 | 0.2 | 1.5 | 1.42 | 1.5 | |||||
125 | 1.7 | 1.45 | 0.65 | 0.34 | 0.3 | 0.235 | 1.8 | 1.72 | 1.8 | |||||
160 | 1.6 | 1.3 | 0.6 | 0.4 | 0.36 | 0.27 | 2.2 | 2.12 | 2.2 | |||||
200 | 1.5 | 1.2 | 0.55 | 0.48 | 0.43 | 0.33 | 2.6 | 2.5 | 2.6 | |||||
250 | 1.4 | 1.1 | 0.5 | 0.56 | 0.5 | 0.39 | 3.05 | 2.9 | 3.05 | |||||
315 | 1.4 | 1.0 | 0.45 | 0.67 | 0.29 | 0.465 | 3.65 | 3.45 | 3.65 | |||||
400 | 1.3 | 1.0 | 0.4 | 0.8 | 0.71 | 0.56 | 4.3 | 4.15 | 4.3 | |||||
500 | 1.2 | 1.0 | 0.4 | 0.96 | 0.85 | 0.67 | 5.15 | 4.82 | 5.15 | |||||
630 | 1.1 | 0.8 | 0.4 | 1.2 | 1.6 | 0.81 | 4.5
| 6.2 | 5.86 | 6.2 | ||||
800 | 1.0 | 0.7 | 0.35 | 1.4 | 1.23 | 0.98 | 7.5 | 7.2 | 7.5 | |||||
1000 | 1.0 | 0.6 | 0.3 | 1.7 | 1.5 | 1.15 | 10.3 | 9.8 | 10.3 | |||||
1250 | 0.9 | 0.6 | 0.27 | 1.95 | 1.72 | 1.36 | 12.0 | 12.2 | 12.0 | |||||
Technical parameter table of load switch
The load switch is oil immersed, three-phase linkage switch, and spring operated mechanism; It can be operated with load for opening and closing, and its opening and closing speed is independent of the magnitude of the operating force. There are two station, four station T-shaped
Four station V-shaped and other options are available for selection
Serial Number | name | unit | Four position ring network load switch | Two position load switch | ||
1 | Rated current | A | 630 | 315 | ||
2 | Rated short-circuit closing current | kA | 31.5 | 31.5 | ||
3 | Rated short-time withstand current | kA | 12.5 | 12.5 | ||
4 | Rated short-time endurance time | S | 2 | 2 | ||
5 | Mechanical lifespan | 次 | 2000 | 2000 | ||
6 | Lightning impulse tolerance | Alternating to ground | kV | 75 | 75 | |
7 | Voltage peak full wave | isolating fracture | 85 | 85 | ||
8 | 1minPower frequency withstand voltage | Phase to ground isolation fracture | kV | 42 | 42 | |
10 | Rated peak withstand current | kA | 31.5 | 31.5 | ||
Technical parameters of fuses
The high-voltage side of the American box type transformer is provided with full range protection by connecting backup protection fuses and plug-in fuses in series, with a simple principle and economic reliability; The backup protection fuse is an oil immersed high-voltage current limiting fuse
The device has a large breaking capacity and only operates when there is an internal fault in the transformer. The plug-in fuse is equipped with a dual sensitive fuse, which can provide dual protection for current and temperature. After the dual sensitive fuse is blown, it can be conveniently used on site
Replace the melt core.
Serial Number | Capacity of three-phase transformer （kVA） | Primary voltage of transformer（10kV） | ||
XRNTRated current（A） | PRNT1Overload protection rated current（A） | |||
1 | 30 | 10 | 6 | |
2 | 50 | 16 | 8 | |
3 | 80 | 16 | 10 | |
4 | 100 | 20 | 15 | |
5 | 125 | 25 | 15 | |
6 | 160 | 31.5 | 25 | |
7 | 200 | 40 | 25 | |
8 | 250 | 50 | 40 | |
9 | 315 | 63 | 40 | |
10 | 400 | 63 | 40 | |
11 | 500 | 80 | 50 | |
12 | 630 | 100 | 50、65 | |
13 | 800 | 125 | 65 | |
14 | 1250 | 160 | 100 | |
15 | 1600 | 200 | 140 | |
