Integrated Inverter-Transformer Unit
Product Description
The integrated inverter-transformer unit converts green energy such as solar power through inversion and voltage step-up to the rated voltage for grid connection, simplifying the system architecture of photovoltaic power stations. The unit consists of a photovoltaic inverter, busbar bridge, low-voltage compartment (communication and power distribution), oil-immersed transformer, high-voltage compartment (equipped with combined apparatus (vacuum load switch + fuse) or circuit breaker), and the unit enclosure.
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Product Advantages
Highly Integrated Design
The unit features high integration, compact structure, saving space with a rational layout.
Easy Maintenance
Equipment maintenance is convenient, requiring no on-site personnel, reducing operational costs.
Flexible Configuration Options
The high-voltage section can be configured with combined apparatus or circuit breaker to meet different scheme requirements.
Safety and Reliability
Equipped with comprehensive protection functions to ensure safe and stable operation.
Efficient and Convenient Installation
Simple installation with short construction period, enabling rapid power supply deployment.
Superior Transformer Performance
Uses oil-immersed transformer with low loss, low temperature rise, and strong resistance to sudden short circuits.
Intelligent Remote Control
Supports remote control operation, improving management efficiency and system response capability.
Strong Environmental Adaptability
Suitable for harsh environments such as high altitude, high salt spray, and high wind and sand.
Integrated Inverter-Transformer Unit
YB-40.5kV
Technical Specifications
| Item | Unit | High-Voltage Apparatus | Transformer | Low-Voltage Apparatus |
| Rated Voltage Ue | kV | 40.5 | 35/0.4 | 0.42 |
| Rated Capacity Se | kVA | 1000~6300 | ||
| Rated Current Ie | A | 200~630 | 100~4000 | |
| Rated Short-Time Withstand Current | kA | 31.5 | 65 | |
| Rated Peak Withstand Current | kA | 80 | 143 | |
| Power-Frequency Withstand Voltage 1min | kV | Phase-to-ground and phase-to-phase 95 | Oil-immersed: 85/1min | 2.5kV at 300.600V |
| Isolation gap 118 | ||||
| Lightning Impulse | kV | Phase-to-ground and phase-to-phase 185 | 200/220 | |
| Isolation gap 215 | 200/220 | |||
| Noise Level | dB | Oil-immersed: (60) | ||
| Layout Type | E-shaped | |||
| Enclosure Material | Steel plate / Galvanized sheet / Stainless steel, etc. | |||
| Protection Rating | IP44/IP55 | |||
| Overall Dimensions | Selected based on transformer capacity and type |