New Energy Box-type Substation (Photovoltaic)

 Product Introduction

The New Energy Box-type Substation (Photovoltaic) is a dedicated prefabricated electrical equipment for photovoltaic (PV) power generation systems. It integrates high-voltage switchgear, transformer body, protective fuses (integrated in the oil tank), low-voltage switch cabinets, and supporting auxiliary devices into a single integrated unit, serving as the core "voltage boosting & grid-connection link" for PV systems.

Its core working principle is to receive low-voltage electricity from PV grid-connected inverters (or AC generators), boost the voltage to 10KV or 35KV through the built-in booster transformer, and then transmit the stable high-voltage electricity to the public power grid via 10KV/35KV transmission lines. This integrated design solves the industry pain points of traditional PV supporting substations--such as scattered equipment, complex on-site installation, and low compatibility--making it an "ideal supporting equipment for PV power generation systems."

Product Features

• Compact Structure & Space-Efficient: The integrated layout significantly reduces the occupied area compared with split-type substations; the radiator is installed externally, which not only optimizes internal space utilization but also enhances heat dissipation efficiency, ensuring the transformer operates stably even under high-load PV power generation conditions (e.g., midday strong sunlight).

• Advanced Transformer Technology & High Reliability: Adopts a new-generation transformer series technology with a scientifically designed internal structure, ensuring safe and reliable long-term operation. It uses transformer oil as the insulation medium for 10KV/35KV high-voltage components, which greatly reduces the required safety distance between internal parts, minimizing the overall size of the substation.

• Full-Sealed Oil Tank for Durability: The transformer oil tank adopts a fully enclosed structure, completely isolating transformer oil from the atmosphere. This design effectively reduces oil oxidation and moisture intrusion, significantly improving the system's stability, reliability, and service life; the matching chip-type radiator is easy to disassemble and assemble, simplifying daily maintenance work.

• Strong Environmental Adaptability: The cabinet body undergoes a special shot blasting process, giving it excellent anti-corrosion, anti-sun exposure, and anti-sand erosion performance. It can withstand harsh outdoor environments common in PV projects (e.g., desert, plateau, or coastal areas).

• Intelligent Low-Voltage Protection System: The low-voltage side is equipped with China's latest intelligent circuit breakers and molded case air switches, which have high breaking capacity and sensitive fault protection (e.g., overcurrent, short circuit). This effectively prevents equipment damage caused by abnormal PV power fluctuations.

• Remote Monitoring & Maintenance Capability: The transformer oil tank can be equipped with pressure gauges and thermometers with communication interfaces; the load switch can be retrofitted with travel switches. This enables real-time remote monitoring of equipment status, remote operation, and predictive maintenance, reducing the cost of on-site inspections for large-scale PV farms.

• High Protection Level: The high-voltage and low-voltage chambers reach IP54 protection level (effectively preventing dust accumulation and splashing water damage), while the transformer body achieves IP68 protection level (completely dust-tight and resistant to long-term water immersion). This fully meets the outdoor operation requirements of PV power generation sites.

Application Scenarios 

1. Large-Scale Ground PV Power Stations: As the core voltage boosting and grid-connection equipment for large ground PV projects (e.g., desert PV bases, plain PV farms), it centrally processes the low-voltage electricity generated by thousands of PV modules. After boosting to 10KV/35KV, it connects to the national or regional power grid, supporting large-scale, stable PV power delivery.

2. Distributed PV Projects (Industrial & Commercial Rooftops): Suitable for rooftop PV systems of factories, shopping malls, and office buildings. Its compact structure saves limited rooftop space, and the integrated design reduces on-site installation time and difficulty. It enables "local power generation and local consumption" for enterprises, reducing electricity costs and reliance on the main grid.

3. Rural PV Poverty Alleviation Power Stations: Adapt to the outdoor environments of remote rural areas (e.g., mountainous areas, plateaus). With strong anti-corrosion, anti-sand, and low-temperature resistance, it can stably operate in harsh conditions, converting local PV resources into usable electricity for rural households and public facilities, supporting rural clean energy development.

4. PV-Storage Hybrid Systems: Cooperates with energy storage equipment to form a PV-storage integrated system. When PV power generation is excessive (e.g., midday), the substation boosts the surplus power and transmits it to the energy storage system for storage; when PV output is insufficient (e.g., cloudy days, nights), the stored energy is released, boosted by the substation, and supplied to the load. This solves the problem of unstable PV power output and improves energy utilization efficiency.