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Products Description
As the global transition to renewable energy accelerates, grid stability and reliable power integration have become paramount for large-scale utility projects. The SP7100K-MV is an all-in-one, turnkey megawatt-scale battery storage solution designed to bridge the gap between high-capacity renewable generation and grid resilience.
By integrating a high-efficiency 1500V DC Central Power Conversion System (PCS) and a heavy-duty Medium Voltage (MV) transformer into a single standard container, this system drastically minimizes on-site installation costs, simplifies logistics, and delivers maximum power density for modern energy markets.
Product Advantages
Products Description
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DC Side
|
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| Max. DC Voltage | 1500V |
| DC Voltage Range | 1000-1500V |
| Max. DC Current | 875A*8 |
| AC Side (Grid-on) | |
| AC Output Power | 7100kVA@45°C/7810kVA@35°C |
| Max. AC Current | 2*2971A@45°C/2*3268A@35°C (690V) |
| PCS Nominal AC Voltage | 690V |
| PCS AC Voltage Range | 586.5-759V |
| Nominal Frequency / Frequency Range | 50Hz/45-55Hz |
| Harmonic (THD) | <3% (At nominal power) |
| Power Factor | -1-1 (Adjustable) |
| Feed-in Phases / AC Connection | '3/3 |
| MV Transformer | |
| Transformer Rated Power | 7100kVA |
| Transformer Max. Power | 7810kVA |
| LV/ MV Voltage | 0.69kV/ (6.6-37) kV |
| Transformer Vector | Dy1 1y11 |
| Transformer Cooling Type | ONAN |
| Winding Material | Al (Cu optional) |
| Oil Type | Mineral oil (PCB free) or degradable oil on request |
| Protection | |
| PCS Output Protection | Circuit breaker-Fuse |
| AC Output Protection | Circuit breaker |
| Surge Protection | Type II+Type I (PCS) |
| Overheat Protection | Yes |
| Overcurrent Protection | Yes |
| Grid Monitoring / Ground Fault Monitoring | Yes/Yes |
| Insulation Monitoring | Yes |
| Transformer Protection | Yes (Includes oil temperature, oil level, pressure relief, gas relays) |
| System Parameters | |
| Operating Temperature | -35°C-60°C (Derated above 45°C) |
| Working Environment Relative Humidity | 0-100% (No condensation) |
| Battery Expansion | Max 5h duration hours BESS (Max 10 ESS-3M44LA-BD1 connected) |
| Cooling Method | Temperature controlled forced air cooling |
| Protection Class | IP55 |
| Anti-corrosion Grade | C4-M/C5 (Optional) |
| Max. Working Altitude | 4000m (more than 2000m needs to be customized) |
| Communication | RS485, CAN, Ethernet |
| Compliance | IEC 62477-1, IEC 62271-202, IEC 62271-200, IEC 60076 |
| Dimensions (W*D*H) | 12192*2438*2896mm |
| Weights | ＜33t |
Two-Layer Passive Explosion Defenses
Active suppression is paired with robust passive safety engineering to manage critical outgassing events safely:
- Combustible Gas Emission Management: Continuous gas monitoring tracks concentrations of volatile compounds, automatically activating forced ventilation to prevent the accumulation of explosive atmospheres inside the container.
- Integrated Explosion Vent Design: Engineered burst panels along the roof and sides provide controlled pressure relief paths. In the rare event of rapid pressure buildup, these vents release the kinetic energy upward and away from surrounding equipment, protecting field personnel and adjacent infrastructure from collateral damage.
By combining proactive thermal management with passive structural defenses, this utility-scale solution minimizes insurance liabilities, ensures local compliance, and protects the long-term capital investment of your energy storage infrastructure.
FAQ
Q: How does the PCS maintain high conversion efficiency across its full power range?
A: The system utilizes an advanced multi-level topology combined with a smart coordination control algorithm. Instead of dropping efficiency drastically during partial-load operations, the system dynamically shifts its switching frequencies and gating signals.
Q: What is the maximum degradation rate or capacity retention guarantee after 10 years?
A: Our standard utility-scale battery cells are rated for 6,000 to 8,000 cycles at 80% Depth of Discharge (DoD) under nominal operating conditions.
Q: Does the water-based firefighting layer require external infrastructure, or is it self-contained?
A: The water firefighting level consists of an integrated internal piping and sprinkler manifold with standard external connection ports. It serves as a secondary backstop for local code compliance, whereas the primary and secondary gas-based suppression levels are completely automated and self-contained within the container.
Q: How does the system perform under severe three-phase voltage unbalance on the grid side?
A: The PCS features completely independent three-phase control loops. It can handle up to a 100% unbalanced load or grid voltage condition, safely injecting or absorbing independent currents on individual phases to actively help balance the local grid segment without tripping or generating excessive thermal stress in the transformer.
Q: What are the requirements for transporting and lifting a system that weighs just under 33 tons?
A: Both the battery container and the MV station are housed in standard 20-foot/40-foot ISO-dimensioned shipping containers. They feature standard corner castings for standard container cranes and reach stackers.
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