Accessories
LV60-90 DC voltage booster for 380v pumps
A DC booster sized for three-phase 380 VAC pump systems, which need roughly 540 VDC working voltage and 620 VDC open-circuit voltage from the array.
It is use to booster low voltage input to high voltage to meet solar pumps system application which need high voltage using. For example, For 1/3 phase 220VAC pumps, it should be request Vmp ( working voltage) is 310VDC, Voc ( open loop voltage) is 350VDC. For 3 phase 380VAC pumps, it should be request Vmp 540VDC, and Voc 620VDC. To order to get high voltage output from solar panels, we always connect solar panels in serial. for 37voc solar panels, we need do 10 pcs solar panels connection in serial to get 370VDC, and need do 17 pcs solar panels connection in serial to get 629VDC. And it will cause big investment for small power solar pumps system, and also make it difficult to promote this very good green energy solar pump system solution for people who need more water but less of grid power.
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Sold to buyers in Philippines, Turkey, Morocco and beyond.
Problems it solves
Why this model gets specified
Three-phase 380 VAC pumps need about 540 VDC Vmp — a long series string in any climate.
Getting to 620 VDC Voc pushes the array close to component voltage limits on cold mornings. Boosting a lower-voltage array avoids that margin problem.
Retrofitting a larger pump onto an existing array usually means re-stringing. A booster is the cheaper path.
Who it is for: Integrators running three-phase 380 V solar pump sets from arrays that cannot reach the required DC voltage.
Key benefits
DC Voltage booster-low voltage input and high voltage output
No need to built by pass contactor with SCR controlling new technology applying—-innovation and cost saving
Technical specifications
As published for this series. Confirm the exact figures for your model code with Boray before ordering.
| Input voltage | is DC60-90V or DC40-70 can work normally, output voltage is 5~7 times of input voltage. |
|---|---|
| Output voltage | changes according to input voltage so that solar pump inverter can track the maximum power of PV arrays. This product has high efficiency. When power is under 200w, the efficiency is under 90%; when power above 200W, the efficiency can reach above 90%. |
| Efficiency | increase with power increase, maximum efficiency can reach 95%. Normally, this product doesn’t need operation, normal working only need to connect the input wire and output wire correctly. |
Applications
- Low voltage booster device is specially for small power solar pump inverter with low current and high voltage, especial for 0.75kw, 1.5kw 220V pumps, and 0.75kw, 1.5kw 380V pumps.
- Input voltage is DC60-90V or DC40-70 can work normally, output voltage is 5~7 times of input voltage.Output voltage changes according to input voltage so that solar pump inverter can track the maximum power of PV arrays.
- This product has high efficiency.
- When power is under 200w, the efficiency is under 90%; when power above 200W, the efficiency can reach above 90%.
- Efficiency increase with power increase, maximum efficiency can reach 95%.
- Normally, this product doesn’t need operation, normal working only need to connect the input wire and output wire correctly
Before you order the LV60-90 DC voltage booster for 380v pumps
Four or five details decide the model code. These are the ones that matter for this series:
- Confirm the supply and rating
- Input voltage: is DC60-90V or DC40-70 can work normally, output voltage is 5~7 times of input voltage.
- Confirm the supply and rating
- Output voltage: changes according to input voltage so that solar pump inverter can track the maximum power of PV arrays. This product has high efficiency. When power is under 200w, the efficiency is under 90%; when power above 200W, the efficiency can reach above 90%.
Every Boray unit is full-load tested before delivery, and the customised VFD programme can adapt function set, protection rating and mechanical arrangement where a standard model does not fit. Operation manuals and wiring diagrams are issued per model code — request them with your enquiry.
Frequently Asked Questions
What voltage does a 380 VAC pump system require?
Vmp of about 540 VDC and Voc of about 620 VDC.
Which pumps is the LV60-90 for?
Three-phase 380 V pumps.
What does the booster do?
It boosts low voltage input to the high voltage required by the solar pump system.
Is there a smaller model?
Yes, the LV40-70 covers 220 V small power pumps.
Can it be used with any solar panel?
The required array configuration depends on the panel model; confirm the string design with Boray.
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Request pricing for the LV60-90 DC voltage booster for 380v pumps
Send the motor rating, supply voltage and site conditions. Boray confirms the model code, options and lead time — documentation is available on request.
WhatsApp +86 189 2640 9646 Email the engineering team All contact details