Product Overview
The Photovoltaic Box-Type Substation (referred to as PV substation) is a dedicated integrated power distribution device for photovoltaic power generation systems. It integrates a step-up transformer, high and low voltage switches, intelligent monitoring, and anti-islanding protection. Suitable for 0.4kV–35kV PV grid-connection scenarios, its core function is to step up low-voltage PV power to grid-compatible voltage. It is widely used in distributed and centralized PV power stations as well as integrated PV and energy storage projects.
The product features a fully enclosed enclosure, factory prefabricated production (over 90% assembly and commissioning completed), and low-loss components. It complies with standards such as GB/T 17467 and has passed CCC certification. Advantages include high efficiency, energy savings, convenient grid connection, and high protection. Parameters can be customized to suit various PV scenarios.
Operating Environment
1. Ambient Temperature: Indoor: -20°C to +45°C; Outdoor: -40°C to +60°C. Suitable for outdoor exposed installation, withstands extreme working conditions.
2. Altitude: ≤1000m (customizable up to 3000m), with optimized insulation and heat dissipation for plateau PV scenarios.
3. Relative Humidity: ≤95% at +25°C, equipped with anti-condensation and sealed moisture-proof systems to prevent components from dampness.
4. Installation Sites: Open outdoor areas, industrial and commercial rooftops. Keep away from corrosive, flammable, or explosive materials, and avoid PV shadowing.
5. Protection Rating: Indoor IP44–IP54; Outdoor IP54–IP65. Customizable anti-pollution and anti-corrosion types for harsh outdoor environments.
6. Installation Requirements: Horizontal installation on a solid foundation, standardized wiring, reliable grounding, and lightning protection devices. Adaptable to multiple installation methods.
Technical Parameters
Item | Unit | Parameters |
|---|---|---|
Rated Voltage | kV | Low voltage side: 0.4kV (PV input); High voltage side: 10kV, 35kV (grid connection); customizable |
Rated Capacity | kVA | 100–3150 (full series, supports parallel expansion of multiple units) |
Transformer Type | --- | SCB14 low-loss dry-type preferred; oil-immersed optional; suitable for PV fluctuating loads |
Insulation Level | kV | High voltage side: lightning impulse ≥95kV, power frequency withstand ≥42kV; reliable insulation |
Service Life | years | ≥20 years (transformer ≥25 years); enclosure anti-corrosion and anti-rust |
Enclosure Material | --- | Cold-rolled steel / stainless steel; anti-corrosion coated; double-layer insulation; waterproof and dustproof |
Protection Rating | --- | Indoor IP44–IP54; Outdoor IP54–IP65; customizable special protection |
Protection & Monitoring Functions | --- | Includes anti-islanding and other protections; equipped with intelligent monitoring and remote operation & maintenance system |
Product Features
1. High Efficiency & Energy Saving: Standard SCB14 low-loss transformer with overall efficiency ≥98.5%, reducing curtailment losses and increasing power generation revenue.
2. PV Dedicated: Adapts to PV fluctuating loads; features anti-islanding protection; smooth 10/35kV grid connection compliant with grid codes.
3. Prefabricated & Convenient: Over 90% factory commissioning; on-site installation and commissioning within 1–3 days, shortening power station construction time.
4. High Protection: Sealed enclosure resists corrosion and water ingress; withstands extreme outdoor conditions for rooftop, ground, and other scenarios.
5. Intelligent Operation & Maintenance: Equipped with intelligent monitoring system; supports remote O&M and fault alerts; routine inspection only.
6. Flexible Expansion: Customizable parameters; supports parallel connection of multiple units to meet large-scale PV power station and future expansion needs.
7. Safe & Environmentally Friendly: No oil leakage pollution; complies with the "dual carbon" concept; multiple protections ensure safety of the power station and grid.
Our Advantages
1. Dedicated customization for PV, adaptable to various PV scenarios and supporting integrated PV and energy storage expansion.
2. Standardized production with strict quality control; each unit comes with a factory test report for stable performance.
3. Full certification, compliant with industry standards, meeting acceptance and grid-connection requirements for PV projects.
4. Reliable delivery, support for urgent orders; includes lifting, commissioning, and grid-connection guidance for rapid deployment.
5. Full lifecycle after-sales service: remote fault diagnosis, fast-response local teams, minimizing downtime losses.
Ordering Guide
Please provide the following information to ensure accurate matching with PV grid-connection requirements:
1. Specify PV input / grid-connection voltage, rated capacity, and whether parallel expansion of multiple units is needed.
2. Describe the installation environment and pollution level; specify whether special protective enclosure is required.
3. Determine enclosure layout and dimensions; specify whether dedicated intelligent and protection functions for PV are needed.
4. Provide installation site conditions and rooftop load-bearing capacity; specify whether lifting, commissioning, and grid-connection services are required.
5. Describe the type of power station; specify whether energy storage interfaces need to be reserved for integration of PV and energy storage systems.
