Prefabricated Substation Series

American box transformer

This product is developed by absorbing foreign technology and combining it with domestic actual conditions. 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. It is suitable for new residential areas, green belts, parks, station hotels, construction sites, airports and other places.

ZBM prefabricated substation (American box substation) is suitable for 10KV ring network power supply, dual power supply or terminal power supply system, as a power transformation, metering, compensation control and protection device.

   
Model and its meaning


normal usage conditions

The altitude does not exceed 1000m;
Ambient temperature: -35℃~+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 place free of fire, explosion hazards, chemically corrosive gases and well-ventilated. The ground inclination angle is not greater than 3°.

Functions and features

Fully insulated, fully sealed, free of maintenance, and reliable to ensure personal safety; compact structure, volume only 1/3-1/5 of the European transformer of the same capacity, low height; can adopt a sub-box structure to avoid oil contamination in the transformer tank; high-voltage side adopts double fuse full range protection, greatly reducing costs: it can be used for both ring network and terminal, and the cable head can be tightened at 200A load current

Main technical parameters

Technical parameter table of prefabricated substation
serial number name unit Technical parameters
1 Rated voltage kV 10/0.4(high pressure/low pressure)
2 Maximum working voltage kV 12(high voltage side)
3 Rated frequency Hz 50
4 Rated capacity kVA 50-1600
5 1 minute power frequency withstand voltage kV 35
6 Lightning impulse voltage kV 75
7 Cooling method Oil immersed self-cooling
8 High voltage backup fuse breaking current kA 50
9 Plug-in fuse breaks current kA 2.5
10 ambient temperature -35-+40
11 Coil allowable temperature rise K 65
12 No load voltage regulation ±5% or ±2×2.5%
13 Noise level dB 50
14 Protection level IP43

Transformer technical parameter table

Use the new S9 series transformer body, which has low loss, good overload capacity, and strong short-circuit resistance. All fasteners have been anti-loosened, eliminating the need for hanging cores; you can also choose S10 series and S11 series transformers with better performance

CapacityKVA VoltagekV join
group label
No-load current% No-load current% Impedance Voltage % S9 S10 S11
high pressure low pressure S9 S10 S11 S9 S9 S11
50 10±5%
or
±2×2.5%
0.4 Dyn11 or
Yyn0
2.0 1.9 0.75 0.17 0.15 0.12 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 4.0 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 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 4.5 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

Load switch technical parameter table
The load switch is an oil-immersed, three-phase linkage switch, spring operating mechanism; it can open and close with load, and its opening and closing speed has nothing to do with the operating force. There are two-station, four-station T-type, four-station V-type, etc. to choose from.

Phone

0086-13868724314
Phone