Description
QB100 Solar Pump Inverter 7.5kW
High-efficiency solar water pump controller with 99% MPPT tracking and seamless AC/DC auto-switching. Eliminates diesel generator dependency for agricultural irrigation while providing real-time GPRS remote monitoring and automatic sunrise-to-sunset operation.
Key Features & Agricultural Benefits
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99% MPPT Efficiency
- Advanced maximum power point tracking algorithms
- Real-time solar panel optimization every 2 seconds
- Wide DC input voltage range: 200V-800V
- Automatic voltage adjustment for varying sunlight
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Seamless AC/DC Auto Switching
- Automatic switching between solar DC and grid AC power
- No manual intervention required during cloudy periods
- Continuous water supply 24/7 with hybrid configuration
- Customizable AC/DC priority settings
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GPRS Remote Monitoring
- Mobile app control from anywhere with cellular coverage
- Real-time status: power output, flow rate, fault alerts
- Historical data logging and performance analytics
- SMS alerts for dry-run, overload, or system faults
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Industrial Protection & Automation
- Dry-run protection prevents pump damage from low water
- Auto derating at high temperatures (40°C+ ambient)
- PV over-voltage and over-current protection
- Sunrise auto-start, sunset auto-shutdown
💰 Diesel Cost Elimination
Typical diesel pump systems consume 3-5 liters per hour. At $1.20/liter, operating 8 hours daily costs $288-$480 monthly. The QB100 solar system eliminates fuel costs entirely after installation, with typical ROI in 18-24 months.
Minimal Maintenance
18-24 Month ROI
25-Year Panel Life
Technical Specifications – QB100-7R5G-4-PV
7.5kW Three-Phase 380V Solar Pump Inverter. Industrial-grade VFD with hybrid AC/DC input capability and integrated GPRS communication module.
| Parameter | Specification | Notes |
|---|---|---|
| Model Number | QB100-7R5G-4-PV | 7.5kW 380V Three Phase |
| Rated Power | 7.5 kW / 10 HP | Continuous duty at 40°C |
| AC Input Current | 25A (Grid Backup) | Three-phase 380V ±15% |
| DC Input Voltage | 200V – 800V DC | MPPT range 400V-750V |
| DC Input Current | 18.5A Rated / 30A Max | 150% overload for 60s |
| AC Output Voltage | Three Phase 380V/400V AC | ±1% voltage regulation |
| Output Current | 17A Rated / 25.5A Peak | 150% overload capacity |
| Output Frequency | 0-400 Hz (V/F Control) | 0.1Hz resolution |
| MPPT Efficiency | ≥ 99% | Tracking every 2 seconds |
| Conversion Efficiency | ≥ 96% | At rated load |
| AC/DC Switching | Auto / Manual Mode | <200ms transfer time |
| Communication | GPRS + RS485 Modbus | Mobile app + PC software |
| Protection Rating | IP65 | Outdoor installation ready |
| Operating Temperature | -20°C to +60°C | Derating above 45°C |
| Cooling Method | Forced Air Cooling | Dual ball-bearing fans |
| Dimensions (W×H×D) | 280mm × 540mm × 230mm | Wall-mount enclosure |
| Weight | 18 kg | Aluminum heat sink chassis |
Frequently Asked Questions
Do I need batteries with the QB100 solar pump inverter?
No batteries are required for standard solar pumping. The QB100 operates directly from solar panel DC input (200V-800V range) with 99% MPPT efficiency. Water is stored in tanks during daylight hours for 24/7 availability. However, if you need nighttime pumping or consistent flow regardless of weather, the AC/DC switching function allows grid power backup—battery storage is optional and typically not cost-effective for irrigation applications.
Can the QB100 work with my existing 3-phase submersible pump?
Yes. The QB100-7R5G-4-PV outputs standard three-phase 380V/400V AC at 50/60Hz, compatible with conventional asynchronous induction motors and submersible pumps up to 7.5kW (10HP). It provides soft-start functionality (ramp-up time adjustable 0-60 seconds) to eliminate inrush current, protecting pump windings and extending motor life by 30-50%. For pumps deeper than 100 meters, the 7.5kW model delivers 150% rated torque (11.25kW) for 60 seconds during startup.
How does the AC/DC auto-switching work in practice?
The QB100 continuously monitors both DC solar input and AC grid input. Priority mode is user-configurable: In “Solar Priority,” the inverter runs on DC while available; when solar drops below operating threshold (e.g., heavy clouds), it seamlessly switches to AC power within 200ms without stopping the pump. In “AC Priority,” grid power is primary with solar as economic supplement. Switching is automatic—no manual intervention required. This ensures zero water flow interruption for critical applications like livestock watering or greenhouse irrigation.
What is the warranty and how does GPRS remote monitoring help?
The QB100 includes a 2-year standard warranty with 5-year extended coverage available. The integrated GPRS module enables: (1) Real-time monitoring via mobile app—view power output, flow rate, fault codes, and historical performance; (2) Remote troubleshooting—our technicians can diagnose 90% of issues without site visits; (3) SMS alerts for dry-run, overload, or PV faults, preventing pump damage; (4) Geographic tracking for multiple farm locations. This reduces maintenance response time from days to hours, critical during planting season.
Get Your Solar Pump System Design
Free engineering support: Panel sizing, pump selection, daily water volume calculations, and ROI analysis.
📞 Contact Us Directly
+86 18357241165
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