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Fronius Tauro ECO 99-3-D — is a powerful and cost-effective solution for large-scale industrial solar power plants. With a rated capacity of 99 kW, this inverter is specially designed for decentralized systems where the priority is maximum energy output at minimum operating costs (LCOE). Manufactured in Austria, the device embodies the highest assembly quality and intelligent energy management technologies.
Features of the ECO series and Direct (D) version
The 99-3-D model combines the advantages of the ECO line and Direct architecture, making it a unique tool for building commercial solar power plants:
- ECO — Maximum Economy: The ECO series is optimized for large uniform photovoltaic arrays. The use of one (1) high-power MPP tracker allows achieving an efficiency of 98.5% while significantly simplifying the design and reducing equipment costs.
- D (Direct) — Simplified Installation: The letter "D" means the possibility of direct connection of solar strings directly to the inverter using Staubli MC4 connectors. This eliminates the need to install additional DC combiners (power collection cabinets) at the site, reducing material costs and accelerating installation.
- DC Overload: The inverter allows connecting solar panels with a total capacity of up to 150 kW/peak, ensuring stable output power of 99 kW even during periods of low solar insolation.
Key Benefits of Fronius Tauro ECO 99-3-D
1. Unmatched Environmental Resistance
Unlike many competitors, Fronius Tauro is designed to operate under direct sunlight. Thanks to a double-wall housing (Double Wall) and an intelligent active air cooling system, the inverter maintains full power even at +50 °C. This is critical for large ground-mounted solar power plants in the southern regions of Ukraine. IP 65 protection class guarantees reliability in the harshest conditions.
2. Revolutionary Service Concept
The concept of "repairability" (Repairability) is fundamental to Fronius. In case of a malfunction, certified specialists can replace an individual power module directly at the site of operation. You don't need to disassemble and send the entire 103-kilogram device to a service center. This minimizes downtime and ensures the fastest project payback.
3. Maximum System Flexibility and AC Daisy Chaining
The inverter supports the option of sequential connection on the AC side (AC Daisy Chaining). This allows you to connect multiple inverters in one chain using a single main cable with a large cross-section (up to 240 mm²), which significantly reduces cable product costs and simplifies the design of large systems.
4. Intelligent Monitoring and Open Protocols
Each inverter has a built-in data logger and web server. The Fronius Solar.web platform provides detailed analysis of the solar power plant operation from anywhere in the world. Thanks to support for Modbus TCP SunSpec and Fronius Solar API, the equipment is easily integrated with SCADA systems, load control stations, and other third-party components.
5. Comprehensive Safety and Arc Protection
Personnel and facility safety is a priority. The 99-3-D model comes with a built-in DC disconnector, type 1 + 2 surge protection, and an innovative arc-fault circuit interruption system (AFCI) as standard. This ensures reliable protection against fire hazards in case of cable or connector damage.
Detailed Technical Specifications
Input Data (DC)
- Max. PV generator power: 150 kW/peak.
- Number of MPP trackers: 1.
- Input voltage range: 580 – 1000 V.
- Start voltage (Udc start): 650 V.
- Maximum input current (Idc max): 175 A.
- Max. short circuit current: 365 A.
- Number of DC connectors: up to 22 pairs (depending on 20A/30A configuration).
Output Data (AC)
- Rated power (Pac r): 99 000 W (99.99 kVA).
- Rated grid voltage: 3-(N)PE 400/230 V or 3-(N)PE 380/220 V.
- Max. output current (Iac max): 151.5 A (at 380 V) / 144.9 A (at 400 V).
- Frequency: 50 / 60 Hz.
- Power factor: 0.8 – 1 (adjustable).
General Information
- Dimensions (H×W×D): 755 × 1109 × 346 mm.
- Weight: 103 kg.
- Protection class: IP 65.
- Night consumption: < 16 W.
- Cooling: Active ventilation, Double Wall technology.
Why Choose "Total-Energo"?
"Total-Energo" is an official partner and certified Fronius service center in Ukraine. By choosing us to equip an industrial facility with Fronius Tauro ECO 99-3-D inverters, you get a number of strategic advantages:
- Direct Deliveries: We guarantee the authenticity of equipment and the availability of all necessary certificates of conformity for operation in Ukrainian power grids.
- Technical Support: Our engineers will help you correctly calculate cable cross-sections, configure the AC Daisy Chaining system, and integrate the power plant into your enterprise's general network.
- 24/7 Service Support: We have our own warehouse of original spare parts (power modules, control boards) and mobile teams that provide warranty repairs directly at your facility.
- Registration Assistance: We assist in obtaining extended warranty from the manufacturer through the Solar.web platform.