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1. Robust Climate-Proof Construction & Ultra-Long Service Life
Designed with a slightly sloped flat roof and an elevated black solid base, this enclosure effectively prevents water accumulation and ground humidity intrusion. The entire frame is built with high-strength galvanized steel and finished with an advanced electrostatic polyester powder coating (minimum 80μm thickness). This provides exceptional resistance against UV radiation and severe salt-spray corrosion. Extensively tested under extreme weather conditions, the housing guarantees a structural lifespan of over 25 years, drastically reducing long-term capital expenditure on equipment replacement and outdoor maintenance.
2. Modular Independent Compartments for Safe, Flexible Access
The substation utilizes a multi-panel, separate compartment design with heavy-duty hinges and flush-mounted recessed handles. This allows maintenance teams to independently access the low-voltage control room, transformer bay, and high-voltage switchgear chambers without shutting down the entire power generation system. The recessed handles also minimize the physical risk of snagging or accidental opening in outdoor environments. This user-centric layout significantly reduces operation and maintenance (O&M) downtime while improving overall operator safety.
3. Optimized Natural Ventilation for Superior Thermal Management
To ensure stable operation under heavy loads and high summer temperatures, the unit is equipped with strategically placed, insect-proof ventilation grilles at the lower front panels. Combined with a thermal insulation layer in the roof, this creates a highly effective natural "chimney effect" that directs hot air away from the transformer and switching components. By maintaining the internal core temperature rise well below critical thresholds even at an ambient temperature of +50°C, it ensures continuous and reliable power conversion without risking internal dielectric breakdown.
4. Comprehensive Grid Safety & Advanced Protection System
Prominently affixed with internationally recognized yellow high-voltage warning triangles, the unit prioritizes public and operator safety. Internally, it integrates a sophisticated protection relay network that includes transformer gas protection, overcurrent/overvoltage protection, and fail-safe grounding switches compliant with IEC standards. In the event of a serious fault or grid disturbance, the system executes a rapid tripping action within <50 milliseconds, effectively isolating the solar farm from the grid. This robust mechanism prevents catastrophic damages to expensive photovoltaic inverters and the main power infrastructure.
| Parameter | Value |
| Rated Capacity | 500 kVA - 5,000 kVA |
| Voltage Ratio | 10 kV / 0.8 kV or 35 kV / 0.8 kV |
| Short-Circuit Impedance | 6% / 8% (customizable) |
| Insulation Level | LI75/AC35 (10kV), LI170/AC70 (35kV) |
| Operating Temperature | -40℃ to +45℃ |
| Sound Level | ≤55 dB @ 1m |
| Design Life | ≥25 years |
1. Commercial Complexes & High-Rise Residential
Modern commercial complexes and high-rise residential buildings require reliable, compact, and fire-safe power distribution equipment.
2. Industrial Parks & Heavy Manufacturing
Industrial parks and heavy manufacturing facilities, including steel mills, cement plants, chemical factories, and automotive assembly lines, consume large volumes of medium-voltage power and require robust, outdoor-rated distribution equipment.
3. PV & Energy Storage Grid Connection
Solar photovoltaic farms and battery energy storage systems (BESS) require dedicated step-up transformer solutions to interface with the medium-voltage grid.
4. Infrastructure — Rail Transit, Healthcare & Data Centers
Critical infrastructure applications, including metro and railway systems, hospitals, and data centers, demand the highest levels of power reliability and redundancy.
5. Municipal & Environmental — Water Treatment & Pumping Stations
Municipal water supply, wastewater treatment plants, and flood control pumping stations present challenging operating conditions for electrical distribution equipment. altitude not more than 1000m;
Use Environmental Conditions
1. Ambient air temperature: -5℃ ~+40℃ and the average temperature should not exceed +35℃ in 24h.
2. Relative humidity should not exceed 50% at max temperature. Higher relative humidity is allowed at lower temperature. Ex. 90% at +20℃ . But in view of the temperature change, it is possible that moderate dews will produce casually.
3. Altitude above sea level should not exceed 2000M.
4. Installation gradient not exceed 5° .
5. Indoor without dust, corrosive gas and rain water attack.
Q：Are you a trading company or factory?
A：We are a manufacturer boasting 15 years of industry experience and holding proprietary import-export rights.
Q：What certifications do you have?
A：Yes, we hold ISO, CE, and IEC certificates. In addition, we possess a number of design patents and a Special Equipment Manufacturing License.
Q：How long is your delivery time?
A：For normal products in 7-10 days; For bulk order, in 15-25 days. It depends.
Q：What is the warranty time?
A：3 years warranty for all of our stainless steel products. Gaskets or the easy broken parts are not included due to the different application for customers.
