Veichi SI30 Solar Pump Inverter
Ingenious Design Veichi SI30 Solar Pump Inverter Small and exquisite inverter modules Industry 4.0 GPRS, bluetooth and cloud platform to build the IOT module Variety Modules — AC/DC integrated (Boost) module IP65 Protection —- A perfect union of fashion sense and technology
Solar pump IOT system
Real-time monitoring, remote expert consultation, large data automatic calculation of energy-saving status and support PC and mobile APP query.
SI30 adopts specialized die-casting aluminum Ai-Si-Cu alloy as the shell material, with the high-end protection of IP65: waterproof panel, waterproof joint and waterproof enclosure.
Basing on the customers’ requirements, the AC and DC power supply could be automatically switched by software.
There are complete and enhanced protections in SI30, such as the dry run, dormancy, water fulfill, phase failure, OC, OV, OL, OH and so on.
Same as SI20, the SI30 series solar pump inverter could perfectly work with AM and PMSM motors.
The human computer interface in the pre-cover support end users “one key start and stop”.
Application Cases of solar pump system
Besides, Veichi Electric also provides other solar energy products such as SI23 Solar Pump Inverter and SI22 Solar Pump Inverter at wholesale price.
1. vfd inverter Small Body，Great Performance;
2. It works as the little assistant who can help farmers become rich by solar pump irrigation;
3. Small Body：Palm-sized，and reducing installation space & delivery cost;
4. Modern Stylish：One technology & one art，Easy to understand;
1. Specially designed with advanced MPPT and CVT technology.
2. Support remote monitoring online through GPRS remote monitor system.
3. Work well with PMSM,AM and other pumps.
4. Book design saves installation space.
Veichi SI30 Solar Pump Inverter: Detailed Description
Overview
The Veichi SI30 is a specialized solar-powered variable frequency drive (VFD) designed to efficiently control and power AC submersible and surface water pumps directly from photovoltaic (PV) panels. It eliminates the need for batteries and grid power, making it an ideal, cost-effective solution for irrigation, agricultural watering, livestock supply, and remote water delivery.
Key Features & Technology
1. Maximum Power Point Tracking (MPPT)
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Core Function: Dynamically adjusts the pump’s operating point to extract the maximum available power from the solar array in real-time, even under changing light conditions (clouds, morning/evening).
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High Efficiency: MPPT efficiency typically >99%, ensuring minimal power loss between panels and pump.
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Wide Operating Voltage Range: Allows flexible solar array configuration (e.g., 250-850VDC for some models).
2. Direct Solar Drive (No Battery/Grid Required)
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Pure Off-Grid Operation: Converts variable DC from solar panels directly into stable AC to run the pump motor. The system starts at sunrise, runs during sun hours, and stops at dusk.
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Energy Storage via Water: Encourages the use of water storage tanks/reservoirs as the “battery,” storing pumped water for use when the sun isn’t shining.
3. Pump Motor Control & Protection
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Soft Start & Stop: Gradually ramps voltage/frequency, reducing mechanical stress on the pump and pipe system, preventing water hammer.
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Dry Run Protection: Automatically stops the pump if water level is too low, preventing motor damage and overheating.
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Motor Overload, Overvoltage, Undervoltage, Short-Circuit Protection: Comprehensive electronic safeguards for the pump.
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Automatic Restart: Can be programmed to restart operation after a fault condition clears (e.g., water level recovers).
4. User Interface & Programmability
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Digital Display (LCD/Keypad): Shows key parameters: input DC voltage/current, output frequency, power, fault codes, and daily running time.
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Adjustable Parameters: User can set:
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Rated Motor Power & Current
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Start/Stop Pressure Points (for systems with pressure tanks)
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Sleep/Wake Frequencies to optimize for low-light conditions
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PID Control for constant pressure applications
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Technical Specifications (Typical Model)
| Parameter | Specification |
|---|---|
| Model | Veichi SI30 (e.g., SI30-XXX, where XXX denotes power rating) |
| Power Range | Commonly available from 1.5kW to 30kW+ (e.g., SI30-4K = 4kW) |
| Input (PV) | DC Voltage Range: e.g., 250-850VDC (model dependent) Max PV Input Power: Exceeds rated motor power (e.g., 6kW PV for a 4kW pump) |
| Output (Pump) | Output Voltage: 3-Phase 0-380VAC / 0-480VAC (adjustable) Output Frequency: 0-400 Hz (programmable) |
| Motor Control | V/F Control, Sensorless Vector Control (for better low-speed torque) |
| Protection | IP20 / IP65 (enclosure dependent), Anti-reverse, Lightning surge, Over-temp |
| Communication | RS485 (Modbus RTU) for remote monitoring and control (optional) |
| Display | Multi-function LCD with keypad |
| Cooling | Intelligent fan cooling (fan speed varies with temperature) |
System Components & Wiring
A typical Veichi SI30 Solar Pumping System includes:
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Solar Array: PV panels wired in series to meet the inverter’s MPPT voltage window.
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SI30 Inverter: The control unit.
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AC Water Pump: 3-phase submersible or surface pump (motor power matched to inverter).
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Protection Devices: DC surge arresters, fuses/DC breakers between array and inverter.
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Sensors (Optional): Water level probes or pressure transducers for advanced control.
For More Details Contact us on 0304-1111-988
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