Prefabricated Substation for Wind and Solar PV Power Plant
The New Energy Pad-Mounted Substation is an integrated, rugged outdoor power solution custom-engineered for wind and solar PV power plants. Adopting a compact, split-phase design, it seamlessly combines the high-voltage room, low-voltage control, and a liquid-immersed transformer onto a single structural steel skid. Featuring an independent dual-split low-voltage winding system, it maximizes short-circuit containment while providing flexible parallel or isolated operations. This step-up substation is factory-assembled and fully type-tested to ensure rapid deployment and failure-free power transmission in harsh environments.
Description
Technical Advantages
-
- Advanced Dual-Split Technology: Uses an axially split low-voltage winding transformer, which efficiently restricts short-circuit currents and lowers initial infrastructure capital investment.
- Flexible Circuit Configuration: Outfitted with dual low-voltage branch networks capable of operating independently or running concurrently in parallel.
- Robust High-Voltage Safety: High-voltage busbars and power cables are fully segregated into isolated compartments equipped with electro-magnetic safety interlocks.
- Dual-Stage Fuse Protection: Integrates bay-net plug-in current fuses coupled with back-up current-limiting backup fuses for comprehensive 12kV/40.5kV system protection.
- Zero-Leakage Tank Integrity: Every manufactured tank enclosure undergoes a rigorous 50kPa/ 12-hour pressure-retention seal test to eliminate oil leakage risks.
- High Weatherability Paint Coating: Specially treated to endure extreme high-altitude, dense salt-fog, and severe corrosive ambient environments.
Technical Parameters
Product Model: Prefabricated Substation for Photovoltaic Power Generation
| Item | Unit | High Voltage Switchgear | Transformer | Low Voltage Apparatus | ||
| Rated Voltage | kV | 12 | 40.5 | 10/0.38 | 35/0.27/0.27 | 0.27/0.38 |
| Rated Capacity | kVA | – | – | 600-1600 | – | |
| Rated Frequency | Hz | 50 | 50 | 50 | ||
| Rated Current | A | 200 | 63 | – | – | – |
| 1min Power Frequency Withstand Voltage – Phase-to-Phase and Phase-to-Ground | kV | 42 | 95 | 35 | 85 | 5 |
| 1min Power Frequency Withstand Voltage – Isolation Break | kV | 48 | 110 | – | – | |
| Lightning Impulse Withstand Voltage – Phase-to-Phase and Phase-to-Ground | kV | 75 | 185 | 75 | 220 | 12 |
| Lightning Impulse Withstand Voltage – Isolation Break | kV | 85 | 215 | – | – | |
| Rated Short-circuit Breaking Current (RMS) | kA | 31.5 | – | – | 50 | |
| Rated Short-circuit Withstand Current (RMS) | kA | 20 (4s) | 20 (4s) | – | – | 40 (1s) |
| Rated Short-circuit Making Current (Peak) | kA | 50 | 50 | – | – | – |
| Rated Peak Withstand Current | kA | 50 | 50 | – | – | – |
| Protection Level | – | IP33 | ||||
| Noise Level | – | ≤55dB | ||||
Product Model: Prefabricated Substation for Wind Power Generation
| Vacuum Load Break Switches and Combined Apparatus | Vacuum Circuit Breaker | |||||
| Item | Unit | FZN-12-HC | FZRN-12-HC | Combination Apparatus | ZN-12-HC | ZN-40.5-HC |
| Rated Voltage | kV | 12 | 12 | 12 40.5 | 12 | 40.5 |
| Rated Frequency | Hz | 50 | 50 | 50 50 | 50 | 50 |
| Rated Current | A | 630 | 200 | 200 50.63 | 630, 1250 | 1250, 1600 |
| Rated Short-circuit Breaking Current | kA | 31.5 | 20 | 25, 31.5 | 25, 31.5 | |
| Rated Transfer Current | A | 3150 | 1200 | |||
| 1min Power Frequency Withstand Voltage Phase-to-Phase & Phase-to-Ground / Break |
kV | 42/48 | 42/48 | 42/48 95/115 | 42/48 | 95/115 |
| Lightning Impulse Withstand Voltage (Peak) Phase-to-Phase & Phase-to-Ground / Break |
kV | 75/85 | 75/85 | 75/85 185/215 | 75/85 | 185/215 |
Product Gallery
