Whatsapp
Buy quality 0.75KW Hybrid Solar Pump Inverter from CSIVEI, a professional manufacturer in China. It is engineered for ultra-large solar pumping systems. Featuring three MPPT inputs, it maximizes energy harvest from large solar arrays. The drive includes a built-in step-up transformer (optional) for long-distance transmission, and supports multi-pump parallel operation. Advanced vector control with encoder feedback ensures precise speed regulation under fluctuating solar irradiance. The IP21 enclosure with liquid cooling option (for high ambient areas) guarantees reliability. Applications include major irrigation districts, mine dewatering, and municipal water transfer. CSIVEI offers integrated solutions with remote diagnostics and predictive maintenance.
| Input voltage | AC,1PH,220V(-15%)~240V(+10%) |
| AC,3PH,380V(-15%)~440V(+10%) | |
| Rated frequency | 50/60Hz |
| Frequency range | ±5%（47.5~63Hz） |
| Output Voltage | 0-Output Voltage |
| Output Frequency | 0.1~500Hz |
| Highest frequency | Vector control：0~500Hz |
| V/F control：0~500HZ | |
| Carrier frequency | 0.8KHz~8KHz |
| The carrier frequency can be automatically adjusted according to the load characteristics | |
| Input frequency resolution | Digital setting：0.01Hz |
| Simulation setting：Maximum frequency x 0.025% | |
| Control Method | SVC Open-loop vector control |
| V/F Open-loop speed control | |
| Starting torque | 0.5Hz/150%(SVC) |
| Speed range | 1:100(SVC) |
| Speed stability accuracy | ±0.5%(SVC) |
| Overload capacity | 150%Rated current：60s，170%Rated current：12s，190%Rated current：1.5s |
| Torque Increase | Automatic Torque Boost；Manual torque boost: 0.1%~30.0% |
| V/F curve | Three methods：1.Linear；2.Multifocal；3.Power-type V/F curve |
| V/F separation | 2 methods：Fully separated；Semi-detached |
| Acceleration and Deceleration Curve | Linear or S-curve acceleration and deceleration methods. Two types of acceleration and deceleration times, with a time range of 0.0~6500.0s |
| DC braking | DC braking frequency：0.00Hz~Maximum frequency |
| Braking time：0.0s~36.0s | |
| Brake operation current value：0.0%~100.0% | |
| Jog control | Jog frequency range: 0.00Hz to maximum frequency. Jog acceleration and deceleration time: 0.0s to 6500.0s |
| Built-in PID | It can conveniently achieve a process control closed-loop control system |
| AVR | When the grid voltage changes, it can automatically maintain a constant output voltage. |
| Torque Limiting and Control | “Excavator” features automatically limit torque during operation to prevent frequent overcurrent trips |
This 0.75KW Hybrid Solar Pump Inverter is perfectly suited for livestock watering (cattle, sheep, horses) in pastures far from power lines, as well as aquaculture (fish ponds, shrimp farms). It drives submersible pumps from wells to fill troughs, or circulates water in ponds to maintain oxygen levels. Features like low‑voltage start and automatic restart after cloud passage ensure continuous operation. In fish farming, the drive can be paired with aerators or circulation pumps to prevent stagnation. Benefits include zero fuel cost, low maintenance, and silent operation. Common uses: remote cattle ranches, pig farm water supply, tilapia pond aeration, and shrimp farm water exchange.
For applications requiring 24/7 water availability, the CSIVEI 0.75KW Hybrid Solar Pump Inverter supports multiple power source configurations:
● Pure solar mode – runs entirely on solar panels; ideal for daytime irrigation and livestock.
● Solar priority with grid backup – uses solar as primary; automatically switches to grid when solar insufficient or pump demand exceeds solar capacity.
● Solar priority with generator backup – same logic for diesel/gas generator, perfect for remote sites without grid.
● Solar + battery storage – charges batteries from surplus solar; runs pump from batteries at night or cloudy periods.
● Grid / generator only mode – for maintenance or emergency.
The built-in energy management controller seamlessly transitions between sources without interrupting pump operation. A communication port allows remote monitoring of energy flow and water output via SCADA or IoT.
Q1: How do I set the drive to start automatically at sunrise?
A: The drive has an “Auto Start” function based on solar power. Parameter P.31 (Start Power Threshold) sets the minimum DC power needed to start the pump. When solar power exceeds this threshold for 10 seconds, the drive starts. No external timer needed.
Q2: The pump stops intermittently on cloudy days. Is that normal?
A: Yes. When solar irradiance drops below the start threshold, the drive will stop the pump to avoid low‑speed overheating. Once sufficient solar power returns, the drive automatically restarts. You can adjust the start and stop power thresholds to reduce frequent cycling.
Q3: Can I manually override and run the pump from grid/generator when solar is low?
A: Yes, if you have the hybrid version. Set parameter P.42 to “Solar Priority with Backup”. When solar power is insufficient, the drive will automatically switch to grid or generator (depending on which backup source is connected and enabled). You can also force manual mode via the keypad.
Q4: How do I set constant pressure mode?
A: Connect a 4‑20mA pressure transmitter to analog input AI1. Set parameter P.00 = 1 (PID mode). Then set target pressure in P.77 (engineering units). The drive will adjust pump speed to maintain that pressure regardless of solar variation.
Q5: Why does the drive show “Low DC Voltage” fault even when panels are in sun?
A: Possible causes: panel wiring too thin/long causing voltage drop, too many panels in parallel (increase series for higher voltage), shading on panels, or faulty panel connections. Check DC voltage at drive terminals; it should be above the drive’s minimum start voltage (typically 250V for 0.75KW Hybrid Solar Pump Inverter).
A cattle ranch in Australia needed water for 500 head across remote paddocks. A CSIVEI solar pump VFD with a 0.75KW Hybrid Solar Pump Inverter powered a borehole pump filling mobile troughs.
Water delivered at 40 L/min during daylight hours.
Diesel generator eliminated, saving $6,000/year in fuel.
Pump dry‑run protection prevents damage when bore level drops.
Cattle weight gain improved due to consistent water access.
The ranch owner expanded the system to two more boreholes, all running on solar.
Address
No. 3788, Liujiang Road, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, China
Tel
If you have any enquiry about quotation or cooperation, please feel free to email us at sanchia@csivei.com or use the following inquiry form.Our sales representative will contact you within 24 hours. Thank you for your interest in our products.
WhatsApp:8615705777705
