Transformer Substation
01
Combined Transformer Substation, European Type
Model Definition
Structural features
Modular Three-Compartment Design
● HV Compartment: Integrates ring main/terminal/dual-power solutions with optional HV metering. Configurable for diverse grid connections.
● Transformer Compartment: Accommodates S9/SC series low-loss oil-immersed/dry transformers with rail-mounted options for easy maintenance.
● LV Compartment: Customizable panel/rack configurations with integrated power distribution, lighting control, reactive power compensation, and energy metering.
Safety & Accessibility
● HV Operation Safety: Compact layout with full-function anti-misoperation interlocks and high-reliability switching devices (circuit breakers/load switches).
● Maintenance Efficiency: Dual-side access doors with automatic lighting in transformer compartment. Quick-access design for HV/LV components.
● Operational Monitoring: Independent temperature-controlled ventilation in each compartment. Exhaust fans activate/deactivate based on preset temperatures to ensure thermal stability.
Environmental Adaptability
● Enclosure Protection: Composite color steel structure with corrosion resistance, thermal insulation, and IP54-rated waterproof/dustproof performance for long-term outdoor use.
● Ventilation & Cooling: Combination of natural and forced ventilation with dedicated air ducts in all compartments to ensure reliable operation of transformers and components.
● Durability: UV-resistant surface treatment, aesthetic design, and ≥20-year service life, minimizing lifecycle maintenance costs.
Operating conditions
● Temperature: -25°C to +40°C
● Altitude: ≤1000m
● Relative Humidity: Daily avg. ≤95%, Monthly avg. ≤90%
● Seismic Resistance: Horizontal acceleration 0.4m/s², Vertical acceleration 0.15m/s²
● Installation Environment: Free from severe shocks, pollution, chemical corrosion, conductive dust, or explosive hazards.
Note: Special requirements should be negotiated with our technical team during order placement.
Technical specifications
|
No. |
Items |
Unit |
HV electrical equipments |
Transformer |
LV electrical equipments |
|
1 |
Rated voltage |
kV |
10 |
10/0.4 |
0.4 |
|
2 |
Rated current |
A |
630 |
100~2500 |
|
|
3 |
Rated frequency |
Hz |
50 |
50 |
50 |
|
4 |
Rated capacity |
kVA |
100~1250 |
||
|
5 |
Rated thermal stable current |
kA |
20/45 |
30/15 |
|
|
6 |
Rated dynamic stable current (peak value) |
kA |
50 |
63 |
|
|
7 |
Rated making short-circuit current (peak value) |
kA |
50 |
15~30 |
|
|
8 |
Rated breaking short-circuit current |
kA |
31.5 (Fuse) |
||
|
9 |
Rated breaking load current |
A |
630 |
||
|
10 |
1 min power frequency withstand voltage |
kA |
Phase-to-ground & phase-to-phase: 42, between breaks: 48 |
35/28 (5mln) |
2.0/2.5 |
|
11 |
Lightning impulse withstand voltage |
kA |
Phase-to-ground & phase-to-phase: 75, between breaks: 85 |
75 |
|
|
12 |
Enclosure protection grade |
IP33/IP23 (Transformer enclosure) |
|||
|
13 |
Noise level |
dB |
Oil type s55, Dry type s65 |
||
|
14 |
Number of circuits |
Nos |
1~6 |
2 |
4~30 |
|
15 |
Maximum reactive power compensation on LV side |
kVAR |
300 |
||
Note: The above data is subject to change due to technical improvement.
Layout and Dimensions
The YBW series prefabricated substations are arranged in two configurations:
Horizontal Triptych Layout (Fig.1-1,Fig.1-2)
Triangular Pyramid Layout (Fig.1-3, Fig.1-4)
