PB-G3 solar pumping inverter

Q1 What pumps are compatible with PB-G3?

PB-G3 is compatible with submersible pumps, surface pumps, and swimming pool pumps using AC induction motors.

Q2 What power range does PB-G3 cover?

PB-G3 solar pumping inverters are available from 0.75kW to 45kW for different pumping applications.

Q3 What is the maximum DC input voltage of the PB-G3 inverter?

The maximum DC input voltage depends on the model. PB-G3 series supports up to 450VDC for low-voltage models and up to 850VDC for high-voltage models, allowing flexible solar array configurations for different pumping applications.

Q4 Can PB-G3 work with grid power?

Yes. PB-G3 supports hybrid PV and AC power input and can automatically switch between solar and grid power when required.

Q5 What is Solar Priority mode?

Solar Priority mode ensures that solar energy is used first. Grid or generator power is only activated when solar power is insufficient.

Q6 Does PB-G3 support soft start?

Yes. The inverter provides soft start functionality to reduce motor starting current and mechanical stress.

Q7 What is multi-pump linkage?

Multi-pump linkage allows several pumps to operate together using a shared solar array, increasing system flow capacity and efficiency.

Q8 Can PB-G3 store historical operating data?

Yes. PB-G3 supports long-term operation data storage with up to eight years of historical records, making it easier for users to analyze system performance and maintenance history.

Q9 What environmental conditions can PB-G3 withstand?

PB-G3 is designed for harsh outdoor environments with an operating temperature range of -20°C to +60°C and ambient humidity up to 95%, making it suitable for desert, tropical, and remote-area installations.

Q10 Does PB-G3 require an additional control cabinet?

No. PB-G3 features an integrated outdoor design with IP65 protection, allowing direct installation without an external control cabinet in most applications, reducing installation costs and complexity.

Q11 What pump control methods are supported by PB-G3?

PB-G3 supports multiple intelligent control modes, including timing control, pressure control, water level control, and liquid depth monitoring, allowing the pumping system to adapt to various field requirements automatically.

Q12 How does PB-G3 improve water output compared with traditional VFDs?

PB-G3 is specifically designed for solar water pumping applications and incorporates a patented dynamic VI MPPT algorithm with up to 99% tracking efficiency. Unlike traditional VFDs, which typically operate at a fixed frequency or lack dedicated solar optimization, PB-G3 continuously adjusts motor speed according to available solar energy, enabling the pump to start earlier in the morning, run longer in the evening, and maintain optimal performance throughout the day.

As a result, PB-G3 can maximize the utilization of photovoltaic power and significantly increase daily water output compared with conventional VFD-based pumping systems.

Q13 Can PB-G3 start a diesel generator automatically?

Yes. PB-G3 supports hybrid operation with solar power, utility power, and diesel generators. When solar energy becomes insufficient and backup power is required, the inverter can be configured to send a start signal to an external diesel generator controller.

This automatic backup function helps ensure uninterrupted water supply for critical applications such as agricultural irrigation, livestock watering, and community water systems. The generator starts only when needed, reducing fuel consumption and operating costs while maintaining reliable system performance.

Q14 What maintenance does a PB-G3 inverter require?

Q15 Can PB-G3 be used for agricultural irrigation?

Yes. PB-G3 is widely used in agricultural irrigation projects where reliable and energy-efficient water pumping is required.