MP-320/350kW SG320/350HX-20 3 Phase String Inverter-1588

Overcoming Solar Energy Challenges

Utility-scale solar plants often struggle with rising BOS (Balance of System) costs, complex maintenance, dust accumulation, grid instability, and hidden string failures that quietly reduce generation. Traditional central inverters create single points of failure, while small-capacity string inverters increase installation complexity and cabling costs.

To solve these real-world plant-level problems, China Moneypro SG320/350HX-20 High-Power String Inverter delivers next-generation 300kW+ technology. It combines the scalability of string architecture with the cost advantages of large blocks—helping EPCs and plant owners lower CAPEX, simplify O&M, and maximize long-term energy yield.

---

Maximize Your Solar Yield

Designed for higher production at plant scale

Instead of limiting performance to small inverter clusters, this high-capacity string inverter supports large flexible block designs from 3.2MW to 9MW. Fewer devices mean lower energy loss, shorter cabling distances, and more efficient power conversion across the site.

Built-in I-V curve diagnostics continuously evaluate string health, while intelligent cleaning functions automatically optimize performance when soiling is detected.

User-focused benefits:

• Increased annual energy yield (+2% or more)

• Reduced mismatch and string loss

• Faster fault identification

• Higher overall plant efficiency

• More revenue per megawatt installed

---

Safety and Reliability You Can Trust

Active protection at every level

Large PV plants require more than passive safety. The SG320/350HX-20 introduces proactive DC-side protection that detects abnormalities early and reacts instantly to prevent equipment damage or fire risk.

Advanced fault recognition pinpoints exact string issues, allowing immediate corrective action and minimizing downtime.

What this means for operators:

• Accurate string-level fault detection

• Real-time alarms and active shutdown when necessary

• Improved plant safety compliance

• Reduced risk of catastrophic failures

• Longer equipment lifespan

---

Simplified Installation and User-Friendly Management

Lower BOS cost with flexible block design

The 3.2–9MW scalable architecture reduces the number of MV stations, transformers, and civil construction work required. Fewer components translate directly into lower capital expenditure and simpler layouts.

Air duct health management further reduces maintenance effort through automatic fan reverse cleaning, eliminating frequent manual dust removal.

Advantages:

• Lower BOS and infrastructure costs

• Fewer devices to install and manage

• Reduced labor for cleaning and maintenance

• Faster commissioning for large projects

• Higher O&M efficiency

---

Smart Monitoring and Performance Insights

Intelligent O&M for modern solar plants

This inverter continuously monitors operational data and system health, enabling predictive maintenance rather than reactive repairs. Advanced software algorithms enhance stability across both weak and strong grids, maintaining smooth power output even in challenging grid conditions.

With SCR ≥ 1.1 adaptability, the inverter ensures dependable performance where conventional systems may struggle.

Operational benefits:

• Stable operation in weak-grid environments

• Remote diagnostics and plant-level visibility

• Reduced downtime and service visits

• Data-driven maintenance planning

• Optimized lifetime performance

---

Applications

Utility-Scale Solar Farms

Ideal for ground-mounted PV plants requiring high-power 320kW–350kW string inverters with lower BOS and higher reliability.

Large Commercial & Industrial Projects

Suitable for factories, logistics centers, and large facilities demanding stable multi-megawatt solar capacity.

Desert & Dusty Environments

Automatic air duct cleaning keeps cooling systems efficient and reduces manual maintenance.

Weak Grid Regions

Enhanced grid adaptability ensures consistent output even in remote or unstable grid areas.

---

FAQ – Everything You Need to Know

Q1: Why choose a 320–350kW string inverter instead of a central inverter?
String architecture improves redundancy, simplifies maintenance, and reduces single-point failure risks while still keeping large-block cost advantages.

Q2: How does this inverter reduce BOS costs?
Its high power density supports larger blocks, meaning fewer MV stations, less cabling, and reduced civil construction expenses.

Q3: Can it operate in dusty or desert environments?
Yes. Automatic fan reverse cleaning removes dust buildup and lowers manual cleaning needs.

Q4: Is it suitable for weak or unstable grids?
Absolutely. Advanced control algorithms allow stable operation even with low short-circuit ratios (SCR ≥ 1.1).

Q5: How does it improve plant yield?
I-V diagnostics plus intelligent cleaning and fast fault detection help recover lost performance and increase annual energy production.

---

Why Choose China Moneypro

China Moneypro focuses on delivering practical, high-performance solutions for modern solar plants. The SG320/350HX-20 combines large-capacity design, intelligent protection, and smart O&M tools to create a dependable utility-scale string inverter that lowers costs while increasing output.

For developers searching for a 320kW string inverter, 350kW solar inverter for utility-scale PV plants, high-power string inverter with low BOS cost, or smart O&M solar inverter for large solar farms, this model offers the performance and reliability needed for long-term success.